Complaints & Recalls
Consumer Complaints
4 ComplaintsGeneral Motors, Llc
Defect Description:
SERVICE BRAKES
Potential Consequences:
While towing my fifth wheel trailer, the truck intermittently disconnects the trailer brakes while in motion. This results in a sudden loss of roughly 75% of my braking capability, creating an extremely dangerous situation. I have a professional driving background, which has helped me avoid an accident so far, but this issue could easily result in a collision, especially under emergency braking or downhill conditions Service Attempt: On June 17, 2025, I brought the vehicle to Madras Chevrolet in Oregon. The dealership acknowledged the issue but stated the truck is “within GM parameters,” so no repairs were made. They claimed the problem might be with the trailer, but I’ve confirmed the trailer works properly with other tow vehicles. This appears to be a systemic electrical or control issue with the truck. Safety Concern: No vehicle should be allowed to disable trailer brakes while moving. This is a clear design or control system fault. I am concerned that other GMC or GM truck owners may be at similar risk and urge the NHTSA to investigate this problem before it results in serious injury or death. PS. On social media most owners say this is happening to them
Corrective Action:
While towing my fifth wheel trailer, the truck intermittently disconnects the trailer brakes while in motion. This results in a sudden loss of roughly 75% of my braking capability, creating an extremely dangerous situation. I have a professional driving background, which has helped me avoid an accident so far, but this issue could easily result in a collision, especially under emergency braking or downhill conditions Service Attempt: On June 17, 2025, I brought the vehicle to Madras Chevrolet in Oregon. The dealership acknowledged the issue but stated the truck is “within GM parameters,” so no repairs were made. They claimed the problem might be with the trailer, but I’ve confirmed the trailer works properly with other tow vehicles. This appears to be a systemic electrical or control issue with the truck. Safety Concern: No vehicle should be allowed to disable trailer brakes while moving. This is a clear design or control system fault. I am concerned that other GMC or GM truck owners may be at similar risk and urge the NHTSA to investigate this problem before it results in serious injury or death. PS. On social media most owners say this is happening to them
Additional Notes:
While towing my fifth wheel trailer, the truck intermittently disconnects the trailer brakes while in motion. This results in a sudden loss of roughly 75% of my braking capability, creating an extremely dangerous situation. I have a professional driving background, which has helped me avoid an accident so far, but this issue could easily result in a collision, especially under emergency braking or downhill conditions Service Attempt: On June 17, 2025, I brought the vehicle to Madras Chevrolet in Oregon. The dealership acknowledged the issue but stated the truck is “within GM parameters,” so no repairs were made. They claimed the problem might be with the trailer, but I’ve confirmed the trailer works properly with other tow vehicles. This appears to be a systemic electrical or control issue with the truck. Safety Concern: No vehicle should be allowed to disable trailer brakes while moving. This is a clear design or control system fault. I am concerned that other GMC or GM truck owners may be at similar risk and urge the NHTSA to investigate this problem before it results in serious injury or death. PS. On social media most owners say this is happening to them
Mfg Campaign: 11668227
Recall Date: Jun 20, 2025
General Motors, Llc
Defect Description:
STRUCTURE:BODY
Potential Consequences:
Tail gate has opened twice while driving down the road.
Corrective Action:
Tail gate has opened twice while driving down the road.
Additional Notes:
Tail gate has opened twice while driving down the road.
Mfg Campaign: 11658354
Recall Date: May 2, 2025
General Motors, Llc
Defect Description:
ELECTRICAL SYSTEM
Potential Consequences:
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Corrective Action:
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Additional Notes:
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Mfg Campaign: 11625297
Recall Date: Nov 14, 2024
General Motors, Llc
Defect Description:
ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL
Potential Consequences:
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Corrective Action:
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Additional Notes:
Intermittent loss of trailer brake function. While traveling and towing a RV trailer with electric brakes, receive a dashboard alert that trailer brakes have been disconnected. This has occurred since vehicle was new. Trailer brake system has been inspected and trailer is not the issue. Took truck to GMC dealer. They are well aware of common issue with GMC owners. GMC issued a safety bulletin 6+ months ago to dealers to replace the integrated trailer brake controller (RPO code JL1). Per reports that has not solved the issue. My truck did not fall into that safety bulletin. Customer Satisfaction Program number N232414840 says, with the brake issues caused by a potential fault in which voltage feedback occurs. This is a DANGEROUS SAFETY ISSUE.
Mfg Campaign: 11625297
Recall Date: Nov 14, 2024
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Valencia, CA • 36 yrs
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