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: 11545089 Other
Sep 18, 2023
Defect Description:

SERVICE BRAKES

Potential Consequences:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Corrective Action:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Additional Notes:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Manufacturer: GMC
Mfg Campaign: 11545089
Notice Date: Sep 18, 2023
Recall Date: Sep 18, 2023
General Motors, Llc
Campaign: 11545089 Other
Sep 18, 2023
Defect Description:

VEHICLE SPEED CONTROL

Potential Consequences:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Corrective Action:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Additional Notes:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Manufacturer: GMC
Mfg Campaign: 11545089
Notice Date: Sep 18, 2023
Recall Date: Sep 18, 2023
General Motors, Llc
Campaign: 11545089 Other
Sep 18, 2023
Defect Description:

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Potential Consequences:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Corrective Action:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Additional Notes:

Traveling at 70 mph on cruise control, tapped breaks to turn off, multiple warning lights flashed, vehicle lost power, and breaks with multiple messages including “Break system failure, top speed 62 mph”. I lost all breaking control on the highway and nearly crashed into other vehicles due to inability to stop. Was able to pull over, turn off vehicle, and turn back on, when the breaks were working again but the vehicles acceleration was very slow. Currently at authorized repair shop. When dropped off, there were 8-9 active codes.

Manufacturer: GMC
Mfg Campaign: 11545089
Notice Date: Sep 18, 2023
Recall Date: Sep 18, 2023
General Motors, Llc
Campaign: 11544881 Other
Sep 16, 2023
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Corrective Action:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Additional Notes:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Manufacturer: GMC
Mfg Campaign: 11544881
Notice Date: Sep 16, 2023
Recall Date: Sep 16, 2023
General Motors, Llc
Campaign: 11544881 Other
Sep 16, 2023
Defect Description:

ENGINE

Potential Consequences:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Corrective Action:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Additional Notes:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Manufacturer: GMC
Mfg Campaign: 11544881
Notice Date: Sep 16, 2023
Recall Date: Sep 16, 2023
General Motors, Llc
Campaign: 11544881 Other
Sep 16, 2023
Defect Description:

FORWARD COLLISION AVOIDANCE: WARNINGS

Potential Consequences:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Corrective Action:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Additional Notes:

TRUCK HAS DIED GOING DOWN THE ROAD AT 40MPH. ALSO HAVE ELECTRICAL ISSUES WITH RADIO..RUNNING BOARDS OPENING GOING DOWN THE ROAD. NO SOUND FROM RADIO, SIGNALS ...NO CONNECTIONS TO GOOGLE ON STAR LOST. RADIO SCREEN HALF OF SCREEN SHUTS OFF. FRONT CRASH SENSORS GO OFF WITH NOTING IN FRONT OF VEHICLE...LOSS OF CAMERAS NO CONNECTION. SOUNDS LIKE A BUG ZAPPER UNDER TRUCK. GM HAS REPROGRAMMED TRUCK NOW 3 TIMES SENT A TECH FROM FACTORY...REPLACED RADIO REPROGRAMMED ALL COMPUTERS AGAIN!! TRUCK HAS BEEN IN THE SHOP THIS TIME FOR OVER 30 DAYS WITH 6200 MILES ON IT THIS IS THE 4TH TIME SINCE I BOUGHT IN JUNE. HAVE A CASE REPRESENTATIVE FROM GM WHO WILL NOT HELP WITH ISSUES JUST KEEPS PUTTING ME OFF. HAVE VIDEOS PICTURES OF ALL THE ISSUES AND HAVE GIVEN TO DEALER AND GM

Manufacturer: GMC
Mfg Campaign: 11544881
Notice Date: Sep 16, 2023
Recall Date: Sep 16, 2023
General Motors, Llc
Campaign: 11543535 Other
Sep 9, 2023
Defect Description:

SUSPENSION

Potential Consequences:

There is a clunking and popping noise on the rear suspension or spring leaf when going between 5-20 mph, there is no active recalls for this but there is a lot of people complaining about this problem and the dealer does not wants to take responsibility for this issue need help. They are forums online all over the country complaining about this issue.

Corrective Action:

There is a clunking and popping noise on the rear suspension or spring leaf when going between 5-20 mph, there is no active recalls for this but there is a lot of people complaining about this problem and the dealer does not wants to take responsibility for this issue need help. They are forums online all over the country complaining about this issue.

Additional Notes:

There is a clunking and popping noise on the rear suspension or spring leaf when going between 5-20 mph, there is no active recalls for this but there is a lot of people complaining about this problem and the dealer does not wants to take responsibility for this issue need help. They are forums online all over the country complaining about this issue.

Manufacturer: GMC
Mfg Campaign: 11543535
Notice Date: Sep 9, 2023
Recall Date: Sep 9, 2023
General Motors, Llc
Campaign: 11542786 Other
Sep 5, 2023
Defect Description:

STRUCTURE:BODY

Potential Consequences:

I have approximately 7K miles on my truck. The problem I am reporting is the omission of a warning light or some other method of warning if the tailgate which is electronically controlled by a button center near the console, central to and just above an area provided for storage of loose personal items, and also activated by a electronic key FOB which I keep in my pocket while driving. I have had at least 8 instances of the gate opening while driving. I expect others have had the same issue. It seems GM could add a dash light or tone if this happens while vehicle is in motion.

Corrective Action:

I have approximately 7K miles on my truck. The problem I am reporting is the omission of a warning light or some other method of warning if the tailgate which is electronically controlled by a button center near the console, central to and just above an area provided for storage of loose personal items, and also activated by a electronic key FOB which I keep in my pocket while driving. I have had at least 8 instances of the gate opening while driving. I expect others have had the same issue. It seems GM could add a dash light or tone if this happens while vehicle is in motion.

Additional Notes:

I have approximately 7K miles on my truck. The problem I am reporting is the omission of a warning light or some other method of warning if the tailgate which is electronically controlled by a button center near the console, central to and just above an area provided for storage of loose personal items, and also activated by a electronic key FOB which I keep in my pocket while driving. I have had at least 8 instances of the gate opening while driving. I expect others have had the same issue. It seems GM could add a dash light or tone if this happens while vehicle is in motion.

Manufacturer: GMC
Mfg Campaign: 11542786
Notice Date: Sep 5, 2023
Recall Date: Sep 5, 2023
General Motors, Llc
Campaign: 11542148 Other
Sep 1, 2023
Defect Description:

LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH

Potential Consequences:

The contact owns a 2023 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the tailgate inadvertently opened without warning. As a result of the failure, a cooler fell from the bed of the vehicle. No warning light was illuminated. The contact was concerned for his safety and the safety of other drivers while driving on the roadway. The vehicle was not diagnosed or repaired. The dealer was notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 2,000.

Corrective Action:

The contact owns a 2023 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the tailgate inadvertently opened without warning. As a result of the failure, a cooler fell from the bed of the vehicle. No warning light was illuminated. The contact was concerned for his safety and the safety of other drivers while driving on the roadway. The vehicle was not diagnosed or repaired. The dealer was notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 2,000.

Additional Notes:

The contact owns a 2023 GMC Sierra 1500. The contact stated while driving at an undisclosed speed, the tailgate inadvertently opened without warning. As a result of the failure, a cooler fell from the bed of the vehicle. No warning light was illuminated. The contact was concerned for his safety and the safety of other drivers while driving on the roadway. The vehicle was not diagnosed or repaired. The dealer was notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 2,000.

Manufacturer: GMC
Mfg Campaign: 11542148
Notice Date: Sep 1, 2023
Recall Date: Sep 1, 2023
General Motors, Llc
Campaign: 11541322 Other
Aug 29, 2023
Defect Description:

SERVICE BRAKES

Potential Consequences:

electric parking brake turn on while towing behind Rv did damage to driver side ,had towed it for 340 miles before this happened it is not in my manual to disconnect the ground cable ,when I took it to dealer they gave me a paper stating I need to disconnect the ground cable after putting truck in neutral I told them GM should have put that in the manual instead of tell the dealer .I have turned a claim into GM thru bbb auto line have not heard back yet

Corrective Action:

electric parking brake turn on while towing behind Rv did damage to driver side ,had towed it for 340 miles before this happened it is not in my manual to disconnect the ground cable ,when I took it to dealer they gave me a paper stating I need to disconnect the ground cable after putting truck in neutral I told them GM should have put that in the manual instead of tell the dealer .I have turned a claim into GM thru bbb auto line have not heard back yet

Additional Notes:

electric parking brake turn on while towing behind Rv did damage to driver side ,had towed it for 340 miles before this happened it is not in my manual to disconnect the ground cable ,when I took it to dealer they gave me a paper stating I need to disconnect the ground cable after putting truck in neutral I told them GM should have put that in the manual instead of tell the dealer .I have turned a claim into GM thru bbb auto line have not heard back yet

Manufacturer: GMC
Mfg Campaign: 11541322
Notice Date: Aug 29, 2023
Recall Date: Aug 29, 2023
General Motors, Llc
Campaign: 11541504 Other
Aug 29, 2023
Defect Description:

AIR BAGS

Potential Consequences:

Warning light stated “Vehicle Restraint System requires Service”. Dealership looking into warning light.

Corrective Action:

Warning light stated “Vehicle Restraint System requires Service”. Dealership looking into warning light.

Additional Notes:

Warning light stated “Vehicle Restraint System requires Service”. Dealership looking into warning light.

Manufacturer: GMC
Mfg Campaign: 11541504
Notice Date: Aug 29, 2023
Recall Date: Aug 29, 2023
General Motors, Llc
Campaign: 11540671 Other
Aug 25, 2023
Defect Description:

UNKNOWN OR OTHER

Potential Consequences:

This vehicle has a remote tail gate drop function in the center console. The button is extremely easy to accidentally activate and will activate at any time including when in gear. This creates a significant safety risk as the tailgate can accidentally open while driving at high speeds and cause any load or objects in the bed to fall out and become dangerous projectiles and/or significant roadway hazards. In addition there is no warning message to indicate that the tailgate has opened, creating further safety concerns that the vehicle operator would not realize that the tailgate has opened until they start to lose the contents of the bed. There is no vehicle setting that will disable this function, creating a situation where it is impossible for the operator to ever safely secure objects in the bed.

Corrective Action:

This vehicle has a remote tail gate drop function in the center console. The button is extremely easy to accidentally activate and will activate at any time including when in gear. This creates a significant safety risk as the tailgate can accidentally open while driving at high speeds and cause any load or objects in the bed to fall out and become dangerous projectiles and/or significant roadway hazards. In addition there is no warning message to indicate that the tailgate has opened, creating further safety concerns that the vehicle operator would not realize that the tailgate has opened until they start to lose the contents of the bed. There is no vehicle setting that will disable this function, creating a situation where it is impossible for the operator to ever safely secure objects in the bed.

Additional Notes:

This vehicle has a remote tail gate drop function in the center console. The button is extremely easy to accidentally activate and will activate at any time including when in gear. This creates a significant safety risk as the tailgate can accidentally open while driving at high speeds and cause any load or objects in the bed to fall out and become dangerous projectiles and/or significant roadway hazards. In addition there is no warning message to indicate that the tailgate has opened, creating further safety concerns that the vehicle operator would not realize that the tailgate has opened until they start to lose the contents of the bed. There is no vehicle setting that will disable this function, creating a situation where it is impossible for the operator to ever safely secure objects in the bed.

Manufacturer: GMC
Mfg Campaign: 11540671
Notice Date: Aug 25, 2023
Recall Date: Aug 25, 2023
General Motors, Llc
Campaign: 11540147 Other
Aug 22, 2023
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

The contact owns a 2023 GMC Sierra 1500. The contact stated while driving 25 MPH, the vehicle lost motive power and decelerated while the accelerator pedal was being depressed. The check engine warning light was illuminated. The dealer diagnosed the vehicle and determined that a software update was needed. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 7,780.

Corrective Action:

The contact owns a 2023 GMC Sierra 1500. The contact stated while driving 25 MPH, the vehicle lost motive power and decelerated while the accelerator pedal was being depressed. The check engine warning light was illuminated. The dealer diagnosed the vehicle and determined that a software update was needed. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 7,780.

Additional Notes:

The contact owns a 2023 GMC Sierra 1500. The contact stated while driving 25 MPH, the vehicle lost motive power and decelerated while the accelerator pedal was being depressed. The check engine warning light was illuminated. The dealer diagnosed the vehicle and determined that a software update was needed. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 7,780.

Manufacturer: GMC
Mfg Campaign: 11540147
Notice Date: Aug 22, 2023
Recall Date: Aug 22, 2023
General Motors, Llc
Campaign: 11539087 Other
Aug 17, 2023
Defect Description:

STEERING

Potential Consequences:

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.

Corrective Action:

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.

Additional Notes:

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.

Manufacturer: GMC
Mfg Campaign: 11539087
Notice Date: Aug 17, 2023
Recall Date: Aug 17, 2023
General Motors, Llc
Campaign: 11539087 Other
Aug 17, 2023
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.

Corrective Action:

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.

Additional Notes:

Driving home in the 2023 GMC Sierra 1500, when the error message came up to Service Power Steering. A short time later also had messages for ESC, Restraint System, and Trail Brakes error messages. Then lost all electric power assist on the power steering, and truck almost impossible to turn without extreme effort. Took to dealer and they had truck for almost 2 weeks and said they couldn't replicate the problem. Within 24 hours of getting it back I had the exact same problem, with total loss of power steering assist. Parked truck for approx an hour, and it reset and was functioning normally again. Short time later got the Service Power Steering message again, but didn't lose power steering this time before the computer evidently reset. Major safety issue because if this happens while taking a turn or something at high speeds, I'll be in a ditch or lose control into another lane. Based on research, this has been happening with GM vehicles for a while now, but GM doesn't have any recall on these models, so dealer tells me there is nothing they can do.

Manufacturer: GMC
Mfg Campaign: 11539087
Notice Date: Aug 17, 2023
Recall Date: Aug 17, 2023
General Motors, Llc
Campaign: 11538187 Other
Aug 13, 2023
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

Upon start up the HVAC fan speed reduces by self and will not increase by own in auto mode.

Corrective Action:

Upon start up the HVAC fan speed reduces by self and will not increase by own in auto mode.

Additional Notes:

Upon start up the HVAC fan speed reduces by self and will not increase by own in auto mode.

Manufacturer: GMC
Mfg Campaign: 11538187
Notice Date: Aug 13, 2023
Recall Date: Aug 13, 2023
General Motors, Llc
Campaign: 11538187 Other
Aug 13, 2023
Defect Description:

UNKNOWN OR OTHER

Potential Consequences:

Upon start up the HVAC fan speed reduces by self and will not increase by own in auto mode.

Corrective Action:

Upon start up the HVAC fan speed reduces by self and will not increase by own in auto mode.

Additional Notes:

Upon start up the HVAC fan speed reduces by self and will not increase by own in auto mode.

Manufacturer: GMC
Mfg Campaign: 11538187
Notice Date: Aug 13, 2023
Recall Date: Aug 13, 2023
General Motors, Llc
Campaign: 11538208 Other
Aug 13, 2023
Defect Description:

ELECTRICAL SYSTEM

Potential Consequences:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Corrective Action:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Additional Notes:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Manufacturer: GMC
Mfg Campaign: 11538208
Notice Date: Aug 13, 2023
Recall Date: Aug 13, 2023
General Motors, Llc
Campaign: 11538208 Other
Aug 13, 2023
Defect Description:

UNKNOWN OR OTHER

Potential Consequences:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Corrective Action:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Additional Notes:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Manufacturer: GMC
Mfg Campaign: 11538208
Notice Date: Aug 13, 2023
Recall Date: Aug 13, 2023
General Motors, Llc
Campaign: 11538208 Other
Aug 13, 2023
Defect Description:

VISIBILITY/WIPER

Potential Consequences:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Corrective Action:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Additional Notes:

--Unwanted Reduction in The Front HVAC Blower Speed and Loss of Radio, Auto AC not working as designed --driver seat vibrating as the lane departure warning activated; I had turned the seat vibrate function off on 25 June 2023. I then went into settings to turn the function off again, and the system would not allow to make the change, it stayed in vibrate function --the passenger front window will not go up automatically, had to hold the button to make the window go up all the way. I then had a message in the DIC, that said, “Open and close passenger door”. I did so, at the next stop, but the message stayed on the DIC and the window still would not go up automatically with the button -- when the vehicle is operated and the AC is NOT on, just the fan, and windows down, and the auto temp set at 68 degrees, when at idle, there is an obvious increase in very hot air coming from the vents and stays that way until the vehicle is back in motion. Then it seems to adjust back toward normal outside air. During all this operation the recirculation is open to outside air --auto rain sensing windshield wipers; stops at full arc and hesitates during operation --driver side review mirror does not go back to preset 1 position, when put in reverse, both mirrors tilt lower, as I have set, but when put back into drive, the driver mirror does not fully recover until I push the 1 setting --DIC message of key not in vehicle, even when the key is in vehicle and vehicle is in motion, the DIC message stays on screen saying key not in vehicle --with AC in ON position, cold air stops and very warm/hot air starts coming out for about 30-60 seconds, then cold air starts coming out again, happens during driving and stopped, at any speed --Truck WIFI does not connect automatically SOFTWARE NOT UPDATED FROM GM- OTHER SAFETY ITEMS ARE AFFECTED --Auto headlights --Auto brakes --Auto wipers --Auto systems not working as designed

Manufacturer: GMC
Mfg Campaign: 11538208
Notice Date: Aug 13, 2023
Recall Date: Aug 13, 2023

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