GMC Complaints

The contact owns a 2015 GMC Yukon XL. The contact stated while driving at an undisclosed speed, the transmission jolted before the vehicle accelerated as intended while depressing the accelerator pedal. No warning light was illuminated. The contact stated that an independent mechanic was contacted; however, the vehicle was not taken to be diagnosed. The contact stated that unknown repairs were performed on the vehicle, but the failure persisted. The manufacturer was not made aware of the failure. The vehicle remained at the residence and had not been driven since the failure. The failure mileage was unknown.

The contact owns a 2019 GMC Sierra 1500. The contact stated that while the vehicle was parked, the contact became aware that the rearview camera was inoperable. The contact stated that the image on the screen was blank. The vehicle was taken to the dealer where it was diagnosed and determined that the rearview camera module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 56,000.

The contact owns a 2015 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the transmission unexpectedly downshifted with no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The manufacturer was not made aware of the failure. The approximate failure mileage was 147,000.

While driving, the vehicle shut off without warning. It was in-traffic when this occurred and subsequently blocked traffic. I tried to restart the vehicle many times. It would start and then die within a few seconds. Since the vehicle would not remain running, it was impossible to shift out of the "park" position. Since it was in "park", the vehicle could not be readily moved out of traffic. This failure is a safety hazard! The vehicle was towed from the scene. The dealer diagnosed the problem as the "Powertrain control module lost communication the the fuel pump driver module causing no fueling to engine from low pressure fuel pump U18A..." The fuel pump control module had internal communication circuit failure. GMC module 13554820 was replaced.

The contact owns a 2020 GMC Sierra 2500. The contact received notification of NHTSA Campaign Number: 24V797000 (Power Train); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

255/55R20 these tires only have 30k on them and are starting to dry rot on the sidewall close to the rim on all 4 tires and the tire pressure is checked every couple months I've reached out to Kenda with no response as to date

We purchased our 2018 GMC Acadia, used with 15,798 miles on the odometer, on [XXX] from John Wiesner, Inc. On [XXX], with 20,344 miles on the odometer, we began experiencing a "Shift to Park" message when trying to turn the vehicle off, even though the vehicle shifter indicated that the vehicle was in park. Though the vehicle would turn off, we could not clear the "Shift to Park" message or stop the associated audible alarm without a great deal of effort. A Wiesner dealership confirmed the problem, determined that a switch in the shifter assembly was not grounding, and replaced the transmission control assembly under warranty. All was well until early 2024, at approximately 47,500 miles, when we began experiencing the same problem. The dealer said we must pay $500+ for a repair and that if we failed to get the problem repaired we risked being unable to get the vehicle into park and unable to turn off the vehicle. Being unable to stop the "Shift to Park" message or to stop the audible alarm at the very least will run the battery down and being unable to put the vehicle in park or turn it off risks an injury to us or others. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am the owner of a 2016 GMC Canyon truck, which i purchased used in approx 2020 with about 43,000 miles on it...today's date is now 1/5/25 and the truck has approx 99,0000 mile on it. Over the last 2 years the electronic stability control has failed approx 20 times. A warning light appears on the dash stating the failure of the power steering and the stabilitrac. When this happens steering the truck and be extremely difficult and I am forced to pull off the road. Usually when the truck is turned off for a short while and then turned back on the problem will fix itself, but only for a few minutes or hours and the problem reoccurs. Last week I took the truck to a GM dealer and had the steering angle sensor recalibrated..which fixed the problem for 1 month. Now it is failing again! My wife is afraid and refuses to drive the truck because if this happens again while she is driving she isn't strong enough to turn the wheel..particularly from a complete stopped position. This is a very serious and dangerous problem that GM needs to be responsible to resolve.

I am submitting this complaint regarding a persistent and significant transmission issue with my 2017 GMC Yukon Denali, which I purchased in June 2024. The transmission has been malfunctioning, causing the vehicle to jerk and hesitate, particularly during acceleration. This component is available for inspection upon request. Safety Concerns: This issue poses a serious risk to my safety and the safety of others on the road. The jerking and hesitation during operation can result in delayed acceleration or unexpected speed changes. These problems have occurred while merging into traffic and driving on highways, creating hazardous situations where immediate and reliable vehicle performance is critical. Reproduction and Inspection: The problem has been reproduced and confirmed by an independent mechanic who inspected the vehicle. The diagnosis identified a transmission malfunction, which appears consistent with reports from other owners of GMC Yukon models. However, the vehicle has not yet been inspected by the manufacturer, police, or insurance representatives. Warning Symptoms: There were no warning lamps or error messages displayed prior to the onset of the issue. The jerking and hesitation began soon after I purchased the vehicle in June 2024 and have progressively worsened over time. I have discovered that GMC has issued recalls for similar transmission issues in later Yukon models (2021 and 2022). However, despite widespread complaints, earlier models like my 2017 Yukon Denali have not been included in these recalls. Given the safety risks associated with this transmission defect and the frequency of similar complaints from other owners, I urge the NHTSA to investigate this matter. Prompt action is essential to ensure the safety of drivers and passengers in affected vehicles and to hold the manufacturer accountable for addressing this defect.

I was driving on the highway at about 70 miles an hour and my vehicle started to decelerate without warning, dash lights came on. I was able to safely get off to the side of the road. The vehicle would not start, so I had to call a tow truck. Once towed to the GMC dealership and looked at by mechanics, I was told the engine failed and I would need to replace it. I was also told there were metal shavings in the oil. My vehicle did this without any warnings. I never had the check engine light come on before this incident, nor were there any noises that would make me think something was wrong with my vehicle.