GMC SIERRA 1500 2023

Complete listing of complaints and recalls for this vehicle

314
Complaints
9
Recalls

Complaints & Recalls

314 Complaints 9 Recalls

Official Safety Recalls - Important!

9 Recalls

These are official manufacturer recalls ordered by NHTSA for safety defects. If you own this vehicle, contact your dealer immediately for free repairs.

General Motors, Llc
NHTSA Campaign: 25V274000 SAFETY RECALL
597.6K Vehicles Affected
Recall Date: Apr 24, 2025
Safety Issue:

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Potential Risk:
Engine failure increases the risk of a crash.
FREE Recall Solution:
Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 6, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.
Additional Details:

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-888-275-9171) or go to www.nhtsa.gov.

Action Required: Contact your local GMC dealer to schedule your FREE recall repair.
Manufacturer: GMC
Mfg Campaign: N252494000
Notice Date: Jun 18, 2025
Recall Date: Apr 24, 2025
General Motors, Llc
NHTSA Campaign: 24V674000 SAFETY RECALL
449.7K Vehicles Affected
Recall Date: Sep 12, 2024
Safety Issue:

General Motors, LLC (GM) is recalling certain 2023 Chevrolet Silverado 1500, GMC Sierra 1500, 2023-2024 Chevrolet Tahoe, Suburban, GMC Yukon, Yukon XL, Cadillac Escalade, and Escalade ESV vehicles. The electronic brake control module software may fail to display a warning light when a loss of brake fluid occurs. As such, these vehicles fail to comply with the requirements of Federal Vehicle Safety Standard number 135, "Light Vehicle Brake Systems."

Potential Risk:
Without a warning light, the vehicle may be driven with low brake fluid, which can reduce braking performance and increase the risk of a crash.
FREE Recall Solution:
The Electronic Brake Control Module (eBCM) software will be updated through an over-the-air (OTA) update or by a dealer, free of charge. Owner notification letters were mailed October 25, 2024. Owners can contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N242447990.
Additional Details:

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Action Required: Contact your local GMC dealer to schedule your FREE recall repair.
Manufacturer: GMC
Mfg Campaign: N242447990
Notice Date: Oct 25, 2024
Recall Date: Sep 12, 2024
General Motors, Llc
NHTSA Campaign: 22V903000 SAFETY RECALL
740.1K Vehicles Affected
Recall Date: Dec 8, 2022
Safety Issue:

General Motors, LLC (GM) is recalling certain 2020-2023 Cadillac CT4 and CT5; 2021-2023 Buick Envision; and 2022-2023 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The daytime running lights (DRLs) may not deactivate when the headlights are on. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."

Potential Risk:
DRLs that do not deactivate as intended may result in a glare, reducing visibility, and increasing the risk of a crash.
FREE Recall Solution:
The body control module software will be updated by a dealer, or through an over-the-air (OTA) update, free of charge. Owner notification letters were mailed January 23, 2023. Owners may contact GMC customer service at 1-888-988-7267, Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N222386380. This recall expands previous recall number 22V-827.
Additional Details:

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Action Required: Contact your local GMC dealer to schedule your FREE recall repair.
Manufacturer: GMC
Mfg Campaign: N222386380
Notice Date: Jan 23, 2023
Recall Date: Dec 8, 2022

Consumer Complaints

314 Complaints
General Motors, Llc
Campaign: 11648007 Other
Mar 12, 2025
Defect Description:

STRUCTURE:BODY

Potential Consequences:

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

Corrective Action:

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

Additional Notes:

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

Manufacturer: GMC
Mfg Campaign: 11648007
Notice Date: Mar 12, 2025
Recall Date: Mar 12, 2025
General Motors, Llc
Campaign: 11648007 Other
Mar 12, 2025
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

Corrective Action:

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

Additional Notes:

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

Manufacturer: GMC
Mfg Campaign: 11648007
Notice Date: Mar 12, 2025
Recall Date: Mar 12, 2025
General Motors, Llc
Campaign: 11647354 Other
Mar 10, 2025
Defect Description:

ENGINE

Potential Consequences:

During travel of the highway, the motor suddenly lost power and shut down with no warning lights or symptoms prior. Although I was able to get to the side of the road, the electronic shifter does NOT allow the vehicle to be put into Neutral. This is a known GM issue. This morning the dealer confirmed the engine needs replacement.

Corrective Action:

During travel of the highway, the motor suddenly lost power and shut down with no warning lights or symptoms prior. Although I was able to get to the side of the road, the electronic shifter does NOT allow the vehicle to be put into Neutral. This is a known GM issue. This morning the dealer confirmed the engine needs replacement.

Additional Notes:

During travel of the highway, the motor suddenly lost power and shut down with no warning lights or symptoms prior. Although I was able to get to the side of the road, the electronic shifter does NOT allow the vehicle to be put into Neutral. This is a known GM issue. This morning the dealer confirmed the engine needs replacement.

Manufacturer: GMC
Mfg Campaign: 11647354
Notice Date: Mar 10, 2025
Recall Date: Mar 10, 2025
General Motors, Llc
Campaign: 11647094 Other
Mar 8, 2025
Defect Description:

ENGINE

Potential Consequences:

I left my house & was driving my truck down the highway for about 2.5 miles. All of a sudden the engine locked up & the battery went dead. I barely coasted off the opposite side of the road where the closest side road is & a semi pasted shortly after. I felt very lucky my truck made it off on the side road instead being run over by the semi truck. I then had to call a weaker & have it towed to the local dealership that services GMC trucks. After 4 days I finally got the worst news, the truck needs a new 6.2 engine. My 2023 GMC Sierra AT4 with 38k miles had an engine that locked up & I was flabbergasted. I started searching this issue on the internet & couldn’t believe how common this is & nothing has been done about this. I would assume a recall from GM would be appropriate considering the sheer number of 6.2 liters engines having issues over & over. This is absolutely unacceptable. I could have been seriously injured or even worse killed by the negligence of GM on this issue. I get it, GM made a mistake with this 6.2 engine and it’s going to cost a lot of money but my research tells me this appears to have been happening for a few years. As I sit here today my truck is sitting in a dealer lot with a busted engine & a new one is on backorder. I am currently driving a dealer “loaner” Chevy trailerblazer. It could be weeks or months before I finally get word on another 6.2 engine replacement from GM. I own a small farm and do not have a truck to haul hay or feed for horses. Can the National highway administration please help me? I thought I was buying a dependable 2023 GMC sierra 1500 AT4 & instead bought a lemon. Apparently hundreds of thousands of other 6.2 liter engines like mine are a HUGE safety hazard & should be recalled. This seems like an open & shut case & after reading into the matter I can’t believe Gov. organizations like the National Highway safety administration has not did more and let GMs 6.2 liter engine contine on. What’s left to investigate?

Corrective Action:

I left my house & was driving my truck down the highway for about 2.5 miles. All of a sudden the engine locked up & the battery went dead. I barely coasted off the opposite side of the road where the closest side road is & a semi pasted shortly after. I felt very lucky my truck made it off on the side road instead being run over by the semi truck. I then had to call a weaker & have it towed to the local dealership that services GMC trucks. After 4 days I finally got the worst news, the truck needs a new 6.2 engine. My 2023 GMC Sierra AT4 with 38k miles had an engine that locked up & I was flabbergasted. I started searching this issue on the internet & couldn’t believe how common this is & nothing has been done about this. I would assume a recall from GM would be appropriate considering the sheer number of 6.2 liters engines having issues over & over. This is absolutely unacceptable. I could have been seriously injured or even worse killed by the negligence of GM on this issue. I get it, GM made a mistake with this 6.2 engine and it’s going to cost a lot of money but my research tells me this appears to have been happening for a few years. As I sit here today my truck is sitting in a dealer lot with a busted engine & a new one is on backorder. I am currently driving a dealer “loaner” Chevy trailerblazer. It could be weeks or months before I finally get word on another 6.2 engine replacement from GM. I own a small farm and do not have a truck to haul hay or feed for horses. Can the National highway administration please help me? I thought I was buying a dependable 2023 GMC sierra 1500 AT4 & instead bought a lemon. Apparently hundreds of thousands of other 6.2 liter engines like mine are a HUGE safety hazard & should be recalled. This seems like an open & shut case & after reading into the matter I can’t believe Gov. organizations like the National Highway safety administration has not did more and let GMs 6.2 liter engine contine on. What’s left to investigate?

Additional Notes:

I left my house & was driving my truck down the highway for about 2.5 miles. All of a sudden the engine locked up & the battery went dead. I barely coasted off the opposite side of the road where the closest side road is & a semi pasted shortly after. I felt very lucky my truck made it off on the side road instead being run over by the semi truck. I then had to call a weaker & have it towed to the local dealership that services GMC trucks. After 4 days I finally got the worst news, the truck needs a new 6.2 engine. My 2023 GMC Sierra AT4 with 38k miles had an engine that locked up & I was flabbergasted. I started searching this issue on the internet & couldn’t believe how common this is & nothing has been done about this. I would assume a recall from GM would be appropriate considering the sheer number of 6.2 liters engines having issues over & over. This is absolutely unacceptable. I could have been seriously injured or even worse killed by the negligence of GM on this issue. I get it, GM made a mistake with this 6.2 engine and it’s going to cost a lot of money but my research tells me this appears to have been happening for a few years. As I sit here today my truck is sitting in a dealer lot with a busted engine & a new one is on backorder. I am currently driving a dealer “loaner” Chevy trailerblazer. It could be weeks or months before I finally get word on another 6.2 engine replacement from GM. I own a small farm and do not have a truck to haul hay or feed for horses. Can the National highway administration please help me? I thought I was buying a dependable 2023 GMC sierra 1500 AT4 & instead bought a lemon. Apparently hundreds of thousands of other 6.2 liter engines like mine are a HUGE safety hazard & should be recalled. This seems like an open & shut case & after reading into the matter I can’t believe Gov. organizations like the National Highway safety administration has not did more and let GMs 6.2 liter engine contine on. What’s left to investigate?

Manufacturer: GMC
Mfg Campaign: 11647094
Notice Date: Mar 8, 2025
Recall Date: Mar 8, 2025
General Motors, Llc
Campaign: 11646651 Other
Mar 6, 2025
Defect Description:

ENGINE

Potential Consequences:

i was driving on the highway and the truck just shut off and rear wheel locked up almost caused me to wreck the truck. got truck pulled to side of the road finally after steering got real tight and very hard to steer to side of road. truck would not even try to start and engine warning light popped up on dash. i had to get truck towed for $243 to turner gmc in new holland, the dealership said it was a known issue since they had 2 trucks in their shop with the 6.2 L engines getting replaced. this was a very scary moment for me and now i have nothing to drive out money from towing and dealer told me it could be a few months before i get truck back. now i will have to pay for a truck that dont run at all.

Corrective Action:

i was driving on the highway and the truck just shut off and rear wheel locked up almost caused me to wreck the truck. got truck pulled to side of the road finally after steering got real tight and very hard to steer to side of road. truck would not even try to start and engine warning light popped up on dash. i had to get truck towed for $243 to turner gmc in new holland, the dealership said it was a known issue since they had 2 trucks in their shop with the 6.2 L engines getting replaced. this was a very scary moment for me and now i have nothing to drive out money from towing and dealer told me it could be a few months before i get truck back. now i will have to pay for a truck that dont run at all.

Additional Notes:

i was driving on the highway and the truck just shut off and rear wheel locked up almost caused me to wreck the truck. got truck pulled to side of the road finally after steering got real tight and very hard to steer to side of road. truck would not even try to start and engine warning light popped up on dash. i had to get truck towed for $243 to turner gmc in new holland, the dealership said it was a known issue since they had 2 trucks in their shop with the 6.2 L engines getting replaced. this was a very scary moment for me and now i have nothing to drive out money from towing and dealer told me it could be a few months before i get truck back. now i will have to pay for a truck that dont run at all.

Manufacturer: GMC
Mfg Campaign: 11646651
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11646710 Other
Mar 6, 2025
Defect Description:

ENGINE

Potential Consequences:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Corrective Action:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Additional Notes:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Manufacturer: GMC
Mfg Campaign: 11646710
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11646710 Other
Mar 6, 2025
Defect Description:

FUEL/PROPULSION SYSTEM

Potential Consequences:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Corrective Action:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Additional Notes:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Manufacturer: GMC
Mfg Campaign: 11646710
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11646710 Other
Mar 6, 2025
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Corrective Action:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Additional Notes:

On the highway, the engine suddenly stopped working. Everything turned black. While driving, the screen turned back on but the motor did not start again. I pressed the breaks and the start button to turn the engine back on, while still driving on the highway. It turned back on but then stopped again before I had time to pull to the side of the road. I did the same again and got to bring the car to the side of the highway. It started and stopped several times. I got it to run again so I exited the highway. It turned off again once I was off the highway. I got to drive it slowly to the dealer. He said it had never happened (which is untrue, I found out it is a recurring problem on the GM 6.2 liter). I had brought the car for service to the same dealership about a week prior to the incident. At that time, I told the dealer that the motor was making subtle weird noises. They serviced the car and gave it back to me stating that everything was ok and that nothing showed on their computer. When I picked up the car after the shutting off incident, I was told that their system showed prior issues but that nothing needed to be done since it was not detecting any problem at the time of pick up. About a week after I picked up my truck (after the shutting off issue was supposed to have been taken care of), I returned because I was still noticing the noise. While on a test drive with a GM mechanic, the motor suddenly started making very loud clicking and squeaking noises. He told me to stop right away. The manager at the dealership told me I would get a new motor because there was a recuring issue with the GM 6.2l. After a week, he said only some parts would be changed and that GM would not replace the whole motor. I told him I did not feel safe driving the truck and he said GM decides what to replace not me. I read online that the motor and all oil filters, ducts etc need to be replaced to avoid debris and future problems. No warning light ever went on. Terrifying experience.

Manufacturer: GMC
Mfg Campaign: 11646710
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11646761 Other
Mar 6, 2025
Defect Description:

EXTERIOR LIGHTING

Potential Consequences:

Flickering of daytime running lights.

Corrective Action:

Flickering of daytime running lights.

Additional Notes:

Flickering of daytime running lights.

Manufacturer: GMC
Mfg Campaign: 11646761
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11646893 Other
Mar 6, 2025
Defect Description:

ENGINE

Potential Consequences:

purchased a 2023 GMC Denali, 1500 on January 12, 2025. after about a week,Started to hear knocking ticking noises took the truck to the dealership with 20,362 miles . dealership diagnosed that the lifters on the driver side went bad dealership replace driver side bank , picked up my truck drove it a little over 500 miles and still heard knocking ticking noises. Send it back to the dealership and dropped it off dealership told me they would keep me an update on it.Emailed called have absolutely no idea what’s going on with my truck. The dealership did mention of a possible engine replacement. But did not confirm after many attempts. Trying to attempt to contact the dealership emails phone calls still no answer. Called General Motors. They informed me the dealership ordered a new engine for replacement. That definitely worried me and I asked for a vehicle replacement or refund General motors, declined my request. Now I am not so confident in my truck what else could go wrong since the engine is going to be replaced? What about the transmission? Could it affect it? I don’t know> The damage was significant in order for the engine to be replaced you just don’t replace an engine just because, there was no light indications that something was going wrong with my truck. I’m glad I wasn’t driving far when I was hearing these noises coming from the engine because the engine could have seized left me stranded who knows could have crashed if the engine came to abrupt stop because of the engine failure. I purchased this truck January 12, 2025 . The total of time that I have had my truck since January 12 has been 15 days. today is February 6 on Friday, February 7. My truck has been in the shop literally 30 days exactly. Still no update on when it will be ready. This is so frustrating and such a big inconvenience.

Corrective Action:

purchased a 2023 GMC Denali, 1500 on January 12, 2025. after about a week,Started to hear knocking ticking noises took the truck to the dealership with 20,362 miles . dealership diagnosed that the lifters on the driver side went bad dealership replace driver side bank , picked up my truck drove it a little over 500 miles and still heard knocking ticking noises. Send it back to the dealership and dropped it off dealership told me they would keep me an update on it.Emailed called have absolutely no idea what’s going on with my truck. The dealership did mention of a possible engine replacement. But did not confirm after many attempts. Trying to attempt to contact the dealership emails phone calls still no answer. Called General Motors. They informed me the dealership ordered a new engine for replacement. That definitely worried me and I asked for a vehicle replacement or refund General motors, declined my request. Now I am not so confident in my truck what else could go wrong since the engine is going to be replaced? What about the transmission? Could it affect it? I don’t know> The damage was significant in order for the engine to be replaced you just don’t replace an engine just because, there was no light indications that something was going wrong with my truck. I’m glad I wasn’t driving far when I was hearing these noises coming from the engine because the engine could have seized left me stranded who knows could have crashed if the engine came to abrupt stop because of the engine failure. I purchased this truck January 12, 2025 . The total of time that I have had my truck since January 12 has been 15 days. today is February 6 on Friday, February 7. My truck has been in the shop literally 30 days exactly. Still no update on when it will be ready. This is so frustrating and such a big inconvenience.

Additional Notes:

purchased a 2023 GMC Denali, 1500 on January 12, 2025. after about a week,Started to hear knocking ticking noises took the truck to the dealership with 20,362 miles . dealership diagnosed that the lifters on the driver side went bad dealership replace driver side bank , picked up my truck drove it a little over 500 miles and still heard knocking ticking noises. Send it back to the dealership and dropped it off dealership told me they would keep me an update on it.Emailed called have absolutely no idea what’s going on with my truck. The dealership did mention of a possible engine replacement. But did not confirm after many attempts. Trying to attempt to contact the dealership emails phone calls still no answer. Called General Motors. They informed me the dealership ordered a new engine for replacement. That definitely worried me and I asked for a vehicle replacement or refund General motors, declined my request. Now I am not so confident in my truck what else could go wrong since the engine is going to be replaced? What about the transmission? Could it affect it? I don’t know> The damage was significant in order for the engine to be replaced you just don’t replace an engine just because, there was no light indications that something was going wrong with my truck. I’m glad I wasn’t driving far when I was hearing these noises coming from the engine because the engine could have seized left me stranded who knows could have crashed if the engine came to abrupt stop because of the engine failure. I purchased this truck January 12, 2025 . The total of time that I have had my truck since January 12 has been 15 days. today is February 6 on Friday, February 7. My truck has been in the shop literally 30 days exactly. Still no update on when it will be ready. This is so frustrating and such a big inconvenience.

Manufacturer: GMC
Mfg Campaign: 11646893
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11646893 Other
Mar 6, 2025
Defect Description:

POWER TRAIN

Potential Consequences:

purchased a 2023 GMC Denali, 1500 on January 12, 2025. after about a week,Started to hear knocking ticking noises took the truck to the dealership with 20,362 miles . dealership diagnosed that the lifters on the driver side went bad dealership replace driver side bank , picked up my truck drove it a little over 500 miles and still heard knocking ticking noises. Send it back to the dealership and dropped it off dealership told me they would keep me an update on it.Emailed called have absolutely no idea what’s going on with my truck. The dealership did mention of a possible engine replacement. But did not confirm after many attempts. Trying to attempt to contact the dealership emails phone calls still no answer. Called General Motors. They informed me the dealership ordered a new engine for replacement. That definitely worried me and I asked for a vehicle replacement or refund General motors, declined my request. Now I am not so confident in my truck what else could go wrong since the engine is going to be replaced? What about the transmission? Could it affect it? I don’t know> The damage was significant in order for the engine to be replaced you just don’t replace an engine just because, there was no light indications that something was going wrong with my truck. I’m glad I wasn’t driving far when I was hearing these noises coming from the engine because the engine could have seized left me stranded who knows could have crashed if the engine came to abrupt stop because of the engine failure. I purchased this truck January 12, 2025 . The total of time that I have had my truck since January 12 has been 15 days. today is February 6 on Friday, February 7. My truck has been in the shop literally 30 days exactly. Still no update on when it will be ready. This is so frustrating and such a big inconvenience.

Corrective Action:

purchased a 2023 GMC Denali, 1500 on January 12, 2025. after about a week,Started to hear knocking ticking noises took the truck to the dealership with 20,362 miles . dealership diagnosed that the lifters on the driver side went bad dealership replace driver side bank , picked up my truck drove it a little over 500 miles and still heard knocking ticking noises. Send it back to the dealership and dropped it off dealership told me they would keep me an update on it.Emailed called have absolutely no idea what’s going on with my truck. The dealership did mention of a possible engine replacement. But did not confirm after many attempts. Trying to attempt to contact the dealership emails phone calls still no answer. Called General Motors. They informed me the dealership ordered a new engine for replacement. That definitely worried me and I asked for a vehicle replacement or refund General motors, declined my request. Now I am not so confident in my truck what else could go wrong since the engine is going to be replaced? What about the transmission? Could it affect it? I don’t know> The damage was significant in order for the engine to be replaced you just don’t replace an engine just because, there was no light indications that something was going wrong with my truck. I’m glad I wasn’t driving far when I was hearing these noises coming from the engine because the engine could have seized left me stranded who knows could have crashed if the engine came to abrupt stop because of the engine failure. I purchased this truck January 12, 2025 . The total of time that I have had my truck since January 12 has been 15 days. today is February 6 on Friday, February 7. My truck has been in the shop literally 30 days exactly. Still no update on when it will be ready. This is so frustrating and such a big inconvenience.

Additional Notes:

purchased a 2023 GMC Denali, 1500 on January 12, 2025. after about a week,Started to hear knocking ticking noises took the truck to the dealership with 20,362 miles . dealership diagnosed that the lifters on the driver side went bad dealership replace driver side bank , picked up my truck drove it a little over 500 miles and still heard knocking ticking noises. Send it back to the dealership and dropped it off dealership told me they would keep me an update on it.Emailed called have absolutely no idea what’s going on with my truck. The dealership did mention of a possible engine replacement. But did not confirm after many attempts. Trying to attempt to contact the dealership emails phone calls still no answer. Called General Motors. They informed me the dealership ordered a new engine for replacement. That definitely worried me and I asked for a vehicle replacement or refund General motors, declined my request. Now I am not so confident in my truck what else could go wrong since the engine is going to be replaced? What about the transmission? Could it affect it? I don’t know> The damage was significant in order for the engine to be replaced you just don’t replace an engine just because, there was no light indications that something was going wrong with my truck. I’m glad I wasn’t driving far when I was hearing these noises coming from the engine because the engine could have seized left me stranded who knows could have crashed if the engine came to abrupt stop because of the engine failure. I purchased this truck January 12, 2025 . The total of time that I have had my truck since January 12 has been 15 days. today is February 6 on Friday, February 7. My truck has been in the shop literally 30 days exactly. Still no update on when it will be ready. This is so frustrating and such a big inconvenience.

Manufacturer: GMC
Mfg Campaign: 11646893
Notice Date: Mar 6, 2025
Recall Date: Mar 6, 2025
General Motors, Llc
Campaign: 11645653 Other
Feb 28, 2025
Defect Description:

ENGINE

Potential Consequences:

At 9,100 miles my 2023 pickup truck experienced engine failure. It was inspected by dealership in the town where truck was purchased and it is determined that it will need a new engine due to "bearing failure". This occurred 2/24/25. No indicators or warning messages appeared.

Corrective Action:

At 9,100 miles my 2023 pickup truck experienced engine failure. It was inspected by dealership in the town where truck was purchased and it is determined that it will need a new engine due to "bearing failure". This occurred 2/24/25. No indicators or warning messages appeared.

Additional Notes:

At 9,100 miles my 2023 pickup truck experienced engine failure. It was inspected by dealership in the town where truck was purchased and it is determined that it will need a new engine due to "bearing failure". This occurred 2/24/25. No indicators or warning messages appeared.

Manufacturer: GMC
Mfg Campaign: 11645653
Notice Date: Feb 28, 2025
Recall Date: Feb 28, 2025
General Motors, Llc
Campaign: 11645294 Other
Feb 27, 2025
Defect Description:

ENGINE

Potential Consequences:

The contact owns a 2023 GMC Sierra 1500. The contact stated that while his wife was driving 60 MPH, the vehicle came to an abrupt stop, and the engine was seized. There were no warning lights illuminated. The driver was stranded on the highway for approximately two hours. The vehicle was towed to the local dealer, where it was diagnosed that the camshaft bearing had disintegrated. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 22,872.

Corrective Action:

The contact owns a 2023 GMC Sierra 1500. The contact stated that while his wife was driving 60 MPH, the vehicle came to an abrupt stop, and the engine was seized. There were no warning lights illuminated. The driver was stranded on the highway for approximately two hours. The vehicle was towed to the local dealer, where it was diagnosed that the camshaft bearing had disintegrated. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 22,872.

Additional Notes:

The contact owns a 2023 GMC Sierra 1500. The contact stated that while his wife was driving 60 MPH, the vehicle came to an abrupt stop, and the engine was seized. There were no warning lights illuminated. The driver was stranded on the highway for approximately two hours. The vehicle was towed to the local dealer, where it was diagnosed that the camshaft bearing had disintegrated. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 22,872.

Manufacturer: GMC
Mfg Campaign: 11645294
Notice Date: Feb 27, 2025
Recall Date: Feb 27, 2025
General Motors, Llc
Campaign: 11645195 Other
Feb 26, 2025
Defect Description:

ENGINE

Potential Consequences:

I started truck and engine light came on.Coolant fan went super loud and would not stop at high speed. Code P1098 was seen.The dash read reduce acceleration drive with care.I had to have vehicle towed to GMC dealership.

Corrective Action:

I started truck and engine light came on.Coolant fan went super loud and would not stop at high speed. Code P1098 was seen.The dash read reduce acceleration drive with care.I had to have vehicle towed to GMC dealership.

Additional Notes:

I started truck and engine light came on.Coolant fan went super loud and would not stop at high speed. Code P1098 was seen.The dash read reduce acceleration drive with care.I had to have vehicle towed to GMC dealership.

Manufacturer: GMC
Mfg Campaign: 11645195
Notice Date: Feb 26, 2025
Recall Date: Feb 26, 2025
General Motors, Llc
Campaign: 11644635 Other
Feb 24, 2025
Defect Description:

ENGINE

Potential Consequences:

Complete engine failure confirmed by GMC dealership service technicians. Incident Details: On [XXX] while driving at approximately 45-50 mph on [XXX] , my vehicle suffered a complete engine failure without warning. This resulted in sudden loss of power, inability to accelerate, no warning lights, near-accident, and the need to pull over in unsafe conditions. This failure placed me and my son, as well as others on the road at risk of serious harm and has left me with no confidence in this vehicle’s long-term safety and reliability—even with an engine replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Corrective Action:

Complete engine failure confirmed by GMC dealership service technicians. Incident Details: On [XXX] while driving at approximately 45-50 mph on [XXX] , my vehicle suffered a complete engine failure without warning. This resulted in sudden loss of power, inability to accelerate, no warning lights, near-accident, and the need to pull over in unsafe conditions. This failure placed me and my son, as well as others on the road at risk of serious harm and has left me with no confidence in this vehicle’s long-term safety and reliability—even with an engine replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Additional Notes:

Complete engine failure confirmed by GMC dealership service technicians. Incident Details: On [XXX] while driving at approximately 45-50 mph on [XXX] , my vehicle suffered a complete engine failure without warning. This resulted in sudden loss of power, inability to accelerate, no warning lights, near-accident, and the need to pull over in unsafe conditions. This failure placed me and my son, as well as others on the road at risk of serious harm and has left me with no confidence in this vehicle’s long-term safety and reliability—even with an engine replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Manufacturer: GMC
Mfg Campaign: 11644635
Notice Date: Feb 24, 2025
Recall Date: Feb 24, 2025
General Motors, Llc
Campaign: 11644669 Other
Feb 24, 2025
Defect Description:

ENGINE

Potential Consequences:

The engine has blown for the 6.2L V8 Denali with 31,300 miles. I was told that this is happening on several of these engines. They told me it would be 3-4 months for repair as the engines are on backorder. I am not able to use a truck that I have purchased and am paying on.

Corrective Action:

The engine has blown for the 6.2L V8 Denali with 31,300 miles. I was told that this is happening on several of these engines. They told me it would be 3-4 months for repair as the engines are on backorder. I am not able to use a truck that I have purchased and am paying on.

Additional Notes:

The engine has blown for the 6.2L V8 Denali with 31,300 miles. I was told that this is happening on several of these engines. They told me it would be 3-4 months for repair as the engines are on backorder. I am not able to use a truck that I have purchased and am paying on.

Manufacturer: GMC
Mfg Campaign: 11644669
Notice Date: Feb 24, 2025
Recall Date: Feb 24, 2025
General Motors, Llc
Campaign: 11644357 Other
Feb 23, 2025
Defect Description:

POWER TRAIN

Potential Consequences:

Valve Body. While driving the vehicle, hard shifts occurred; the vehicle check engine light came on and stayed on while the vehicle went into limp mode. I was able to link to the GMC dealer. The dealer was not and would not inspect the vehicle at that time. I was told I needed to leave or return in two for inspection. The left vehicle was inspected the next day and determined as a value body. The GMC dealer found the part in another state and has the part shipped. I installed the part, had the GMC dealer search it, and performed a recall update.

Corrective Action:

Valve Body. While driving the vehicle, hard shifts occurred; the vehicle check engine light came on and stayed on while the vehicle went into limp mode. I was able to link to the GMC dealer. The dealer was not and would not inspect the vehicle at that time. I was told I needed to leave or return in two for inspection. The left vehicle was inspected the next day and determined as a value body. The GMC dealer found the part in another state and has the part shipped. I installed the part, had the GMC dealer search it, and performed a recall update.

Additional Notes:

Valve Body. While driving the vehicle, hard shifts occurred; the vehicle check engine light came on and stayed on while the vehicle went into limp mode. I was able to link to the GMC dealer. The dealer was not and would not inspect the vehicle at that time. I was told I needed to leave or return in two for inspection. The left vehicle was inspected the next day and determined as a value body. The GMC dealer found the part in another state and has the part shipped. I installed the part, had the GMC dealer search it, and performed a recall update.

Manufacturer: GMC
Mfg Campaign: 11644357
Notice Date: Feb 23, 2025
Recall Date: Feb 23, 2025
General Motors, Llc
Campaign: 11644362 Other
Feb 23, 2025
Defect Description:

ENGINE

Potential Consequences:

Driving on a road. Suddenly the engine shut off and would not turn back on. I was stuck in the middle of the road with out the ability to put the truck in neutral to push it out of the way.

Corrective Action:

Driving on a road. Suddenly the engine shut off and would not turn back on. I was stuck in the middle of the road with out the ability to put the truck in neutral to push it out of the way.

Additional Notes:

Driving on a road. Suddenly the engine shut off and would not turn back on. I was stuck in the middle of the road with out the ability to put the truck in neutral to push it out of the way.

Manufacturer: GMC
Mfg Campaign: 11644362
Notice Date: Feb 23, 2025
Recall Date: Feb 23, 2025
General Motors, Llc
Campaign: 11643731 Other
Feb 19, 2025
Defect Description:

POWER TRAIN

Potential Consequences:

Transmission Light has been on & off for a month and half. Had it at dealer twice, dealer will not confirm a problem. Truck shifts and bucks between first and second gear. Makes stopping in traffic difficult as truck will surge and jump when down shifting while stopping. Took truck to AAMCO Transmission shop. Confirmed problem, no new transmission units or rebuild parts are available for the GM 8 Speed transmission. AAMCO is replacing unit with a used one. This is a company truck also have a second truck having the same issues with half the miles of this unit. In my opinion GM is aware of the issue in that with both trucks at dealer with same issue, they just send me off with no documentation so as to not have a paper trail. Also no new units available makes me believe that GM can not keep up with warranty replacements.

Corrective Action:

Transmission Light has been on & off for a month and half. Had it at dealer twice, dealer will not confirm a problem. Truck shifts and bucks between first and second gear. Makes stopping in traffic difficult as truck will surge and jump when down shifting while stopping. Took truck to AAMCO Transmission shop. Confirmed problem, no new transmission units or rebuild parts are available for the GM 8 Speed transmission. AAMCO is replacing unit with a used one. This is a company truck also have a second truck having the same issues with half the miles of this unit. In my opinion GM is aware of the issue in that with both trucks at dealer with same issue, they just send me off with no documentation so as to not have a paper trail. Also no new units available makes me believe that GM can not keep up with warranty replacements.

Additional Notes:

Transmission Light has been on & off for a month and half. Had it at dealer twice, dealer will not confirm a problem. Truck shifts and bucks between first and second gear. Makes stopping in traffic difficult as truck will surge and jump when down shifting while stopping. Took truck to AAMCO Transmission shop. Confirmed problem, no new transmission units or rebuild parts are available for the GM 8 Speed transmission. AAMCO is replacing unit with a used one. This is a company truck also have a second truck having the same issues with half the miles of this unit. In my opinion GM is aware of the issue in that with both trucks at dealer with same issue, they just send me off with no documentation so as to not have a paper trail. Also no new units available makes me believe that GM can not keep up with warranty replacements.

Manufacturer: GMC
Mfg Campaign: 11643731
Notice Date: Feb 19, 2025
Recall Date: Feb 19, 2025
General Motors, Llc
Campaign: 11643732 Other
Feb 19, 2025
Defect Description:

ENGINE

Potential Consequences:

I was driving on the interstate and the vehicle just shut off with a warning stating conditions not right to shift. I had to drift off the interstate and the vehicle would not restart. This happened on 12/4/24 and has been at the dealership since.

Corrective Action:

I was driving on the interstate and the vehicle just shut off with a warning stating conditions not right to shift. I had to drift off the interstate and the vehicle would not restart. This happened on 12/4/24 and has been at the dealership since.

Additional Notes:

I was driving on the interstate and the vehicle just shut off with a warning stating conditions not right to shift. I had to drift off the interstate and the vehicle would not restart. This happened on 12/4/24 and has been at the dealership since.

Manufacturer: GMC
Mfg Campaign: 11643732
Notice Date: Feb 19, 2025
Recall Date: Feb 19, 2025

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