Consumer Safety Complaints

Incident date: Feb 8, 2026

Automatic emergency braking system deployed unexpectedly on acceleration from a traffic light stop. Vehicle was about 10-15 MPH and system operated with no brake pedal input. A vehicle behind had to do a panic stop to avoid collision. Deployment disengaged when accelerator pedal was released. My wife, principal driver, was in the car. She advised this had occurred two times before. No recal... Read more

Incident date: Feb 8, 2026

Automatic emergency braking system deployed unexpectedly on acceleration from a traffic light stop. Vehicle was about 10-15 MPH and system operated with no brake pedal input. A vehicle behind had to do a panic stop to avoid collision. Deployment disengaged when accelerator pedal was released. My wife, principal driver, was in the car. She advised this had occurred two times before. No recal... Read more

Incident date: Aug 11, 2025

The contact owns a 2021 GMC Acadia. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated and DTC: P04FB; was displayed. The vehicle was taken to the dealer where it was diagnosed with moisture of the crank case. The vehicle was repaired. The contact stated that the failure was a quick fix and was covered under the warranty. The contact stated that th... Read more

Incident date: Aug 11, 2025

The contact owns a 2021 GMC Acadia. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated and DTC: P04FB; was displayed. The vehicle was taken to the dealer where it was diagnosed with moisture of the crank case. The vehicle was repaired. The contact stated that the failure was a quick fix and was covered under the warranty. The contact stated that th... Read more

Incident date: May 10, 2025

The contact owns a 2025 GMC Terrain. The contact stated that while his wife was driving approximately 40 MPH on wet roads, the brake pedal was depressed, but the brake pedal was stiff, preventing the vehicle from slowing down as intended. There were several unknown warning lights illuminated during the failure. The accelerator pedal was released, and the vehicle rolled to a stop. The vehicle was t... Read more

Incident date: May 10, 2025

The contact owns a 2025 GMC Terrain. The contact stated that while his wife was driving approximately 40 MPH on wet roads, the brake pedal was depressed, but the brake pedal was stiff, preventing the vehicle from slowing down as intended. There were several unknown warning lights illuminated during the failure. The accelerator pedal was released, and the vehicle rolled to a stop. The vehicle was t... Read more

Incident date: Jan 26, 2026

The contact owns a 2026 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal sound and failed to accelerate as needed. There was no warning light illuminated. The vehicle was taken to the dealer, who determined that the engine needed to be replaced. The vehicle was not repaired and remained with the dealer. The manufacturer was not made aware... Read more

Incident date: Feb 2, 2026

The front forward-facing camera module has failed, causing cruise control and driver-assistance features to become inoperative. Dealer diagnosis indicates the front camera must be replaced and recalibrated in order to restore cruise control and safety systems. This failure disables cruise control and driver-assist features that were standard equipment on the vehicle at purchase, resulting in a su... Read more

Incident date: Feb 2, 2026

The front forward-facing camera module has failed, causing cruise control and driver-assistance features to become inoperative. Dealer diagnosis indicates the front camera must be replaced and recalibrated in order to restore cruise control and safety systems. This failure disables cruise control and driver-assist features that were standard equipment on the vehicle at purchase, resulting in a su... Read more

Incident date: Feb 2, 2026

The front forward-facing camera module has failed, causing cruise control and driver-assistance features to become inoperative. Dealer diagnosis indicates the front camera must be replaced and recalibrated in order to restore cruise control and safety systems. This failure disables cruise control and driver-assist features that were standard equipment on the vehicle at purchase, resulting in a su... Read more

Incident date: Jul 1, 2025

The contact owns a 2018 GMC Terrain. The contact stated that while driving at various speeds, there was an abnormal grinding sound coming from the vehicle while transitioning to 4WD. The contact continued driving and the driving sound became more frequent while shifting into 4WD. Upon inspecting the vehicle, the contact discovered that the driveshaft had detached and was hanging down from the susp... Read more

Incident date: Feb 8, 2026

I remote started my truck. I got in about 5 minutes later. When I shut the door the rear window, passenger side of the power sliding window blew out. GM says my VIN is not affected by the recall but my truck shows that it should have been part of the recall or customer satisfaction program. N192265660 Rear Window Defroster Thermal EventS

Incident date: Jan 28, 2026

Daytime Running light bulb and housing failure. Some 2012 Acadia models recalled under now expired recall for bulbs and deformation of surrounding housing. Apparently the above recall was excluded from this recall and should have been included. Both DRL on this vehicle have failed and surrounding housing has been damaged . Subsequently replacing just bulbs is not possible. The housing melted on ... Read more

Incident date: Jan 9, 2026

The contact owns a 2022 GMC Acadia. The message "Front Assist Blocked" was displayed. The vehicle was taken to the dealer, where it was diagnosed with a camera failure. The camera was replaced; however, the failure recurred while the contact was driving an hour later. The dealer was notified of the failure and informed the contact that the repair could not be covered under the warranty because the... Read more

Incident date: Jan 9, 2026

The contact owns a 2020 GMC Terrain. The contact stated that while driving in cold weather at various speeds; moisture accumulated and deactivated the charger, causing the vehicle to go into LIMP Mode and lose drive power. The vehicle was taken to the dealer, who diagnosed the vehicle and determined that the charger air cooler was defective and needed to be replaced. The dealer also wanted to plac... Read more

Incident date: Jun 18, 2025

From the day that I’ve gotten this vehicle it has been burning oil and water like crazy. There is no reason I should be putting a quart of oil every couple weeks

Incident date: Feb 8, 2026

After a really bad cold snap noticed oil spots on my driveway, after further inspection noticed the oil cooler lines were leaking from the crimps. Got in contact with GM because there was a customer satisfaction program for my year model- N212326940- they told me it did not apply to my truck but it is a know issue, and now I’m having to come out of pocket for it.

Incident date: May 11, 2020

My 2019 GMC Acadia has shift to park warning light that repeatedly keeps coming on I've tried to park it have to turn it off two to three times maybe four times I have paperwork that I have went to the dealer and they have fixed it twice with a harness that is failing it only is a temporary band-aid fix. Even though in Indiana we do not have a recall as I know of for this year I would need to have... Read more

Incident date: Feb 8, 2026

The vehicle camera camera system is sometimes not available at startup and will not reset until the vehicle is allowed to sit for several hours. This prevents the backup camera, forward camera and side mirror cameras from providing an in-dash video of vehicle surroundings, which is especially critical for reversing direction or backing-up. Typically the camera will reset after sitting from a perio... Read more

Incident date: Feb 8, 2026

Upper grille deflector flew off vehicle while operating. No previous damage, just flew off. There is the same issue with my make and model that gmc issued a recall for but it is not appearing for my VIN

Incident date: Feb 4, 2026

On two separate occasions, while driving at approximately 60 mph on New York parkways, my vehicle unexpectedly shifted into neutral and lost power without warning. During the first incident, a message appeared instructing me to “press start to continue.” I was able to restart the vehicle and drive home. Two days later, the same failure occurred again under similar conditions. This time, after... Read more

Incident date: Feb 1, 2026

54k miles. Crankshaft failure. Truck shut off and put in neutral while driving with no codes on dash. Got a text saying to service engine and transmission immediately. On a side note, it is bullshit that you can't put the truck in neutral to get it off the road. The dealership is also doing a great job covering it and offering a loaner.

Incident date: Jan 10, 2026

Following a catastrophic engine failure in my 2023 GMC Yukon XL Denali, I discovered that the vehicle could not be shifted into neutral once the engine failed. This prevented the vehicle from being moved out of traffic if it had stopped in an active lane. The inability to place the vehicle into neutral after a loss-of-power event creates a serious safety hazard, particularly on high-speed roadway... Read more

Incident date: Jan 10, 2026

Following a catastrophic engine failure in my 2023 GMC Yukon XL Denali, I discovered that the vehicle could not be shifted into neutral once the engine failed. This prevented the vehicle from being moved out of traffic if it had stopped in an active lane. The inability to place the vehicle into neutral after a loss-of-power event creates a serious safety hazard, particularly on high-speed roadway... Read more

Incident date: Jan 10, 2026

Following a catastrophic engine failure in my 2023 GMC Yukon XL Denali, I discovered that the vehicle could not be shifted into neutral once the engine failed. This prevented the vehicle from being moved out of traffic if it had stopped in an active lane. The inability to place the vehicle into neutral after a loss-of-power event creates a serious safety hazard, particularly on high-speed roadway... Read more

Incident date: Jan 10, 2026

I am reporting a catastrophic engine failure involving my 2023 GMC Yukon XL Denali, which was subject to a GM-issued recall related to engine failure. On January 10, 2026, at approximately 1:00 a.m., while traveling at highway speed (approximately 65+ mph) on a multi-lane highway, the engine suddenly failed without warning, resulting in a complete loss of power. I was forced to make immediate eva... Read more

Incident date: Jan 10, 2026

I am reporting a catastrophic engine failure involving my 2023 GMC Yukon XL Denali, which was subject to a GM-issued recall related to engine failure. On January 10, 2026, at approximately 1:00 a.m., while traveling at highway speed (approximately 65+ mph) on a multi-lane highway, the engine suddenly failed without warning, resulting in a complete loss of power. I was forced to make immediate eva... Read more

Incident date: Jan 10, 2026

I am reporting a catastrophic engine failure involving my 2023 GMC Yukon XL Denali, which was subject to a GM-issued recall related to engine failure. On January 10, 2026, at approximately 1:00 a.m., while traveling at highway speed (approximately 65+ mph) on a multi-lane highway, the engine suddenly failed without warning, resulting in a complete loss of power. I was forced to make immediate eva... Read more

Incident date: Feb 7, 2026

The frunk latch on the vehicle becomes faulty and does not recognize the hood being latched and secure when it is. While driving, the vehicle without warning will immediately limit speed to 26mph regardless of existing vehicle speed. This has occurred multiple times when driving on the highway with the vehicle immediately decelerating and then saying the hood (frunk) is open. This poses a serious ... Read more

Incident date: Feb 7, 2026

Engine failure while driving 75 miles per hour in highway in brand new Yukon Denali. 3,000 miles and got a “decreased acceleration” warning. Then couldn’t accelerate and loud knocking noise from the engine, likely a lifter issue. I will have to get a new engine according to GMC. Unbelievable. Recall was for 2021-2024, but my 2026 is havin the same issue.

Incident date: Feb 7, 2026

Engine failure while driving 75 miles per hour in highway in brand new Yukon Denali. 3,000 miles and got a “decreased acceleration” warning. Then couldn’t accelerate and loud knocking noise from the engine, likely a lifter issue. I will have to get a new engine according to GMC. Unbelievable. Recall was for 2021-2024, but my 2026 is havin the same issue.

Incident date: Feb 4, 2026

Engine started knocking and developed slow acceleration out of the blue. In addition car has locked up on freeway despite not having any cars around me. Its been in the shop for 3 days and still no diagnosis.

Incident date: Dec 8, 2025

My 2020 GMC Sierra 1500 experienced a premature transmission failure consistent with GM’s known 8-speed transmission defect. My safety and the safety of others were put at risk if/when the transmission occurs a temporary lockup which can/will cause the vehicle to stall on the highway, and potentially create a minor/major automobile incident if vehicle stalls. The vehicle was taken to dealership... Read more

Incident date: Sep 4, 2024

The vehicle has experienced repeated electrical and engine-related malfunctions, including random engine shutdowns while driving and random no-start conditions. The thermostat and cooling system failed and were replaced in 2024. Multiple sensors have failed. The braking system remains noisy even after brake replacement. The lane detection safety system does not provide audible alerts. The vehicle ... Read more

Crash

Incident date: Sep 4, 2024

The vehicle has experienced repeated electrical and engine-related malfunctions, including random engine shutdowns while driving and random no-start conditions. The thermostat and cooling system failed and were replaced in 2024. Multiple sensors have failed. The braking system remains noisy even after brake replacement. The lane detection safety system does not provide audible alerts. The vehicle ... Read more

Crash

Incident date: Sep 4, 2024

The vehicle has experienced repeated electrical and engine-related malfunctions, including random engine shutdowns while driving and random no-start conditions. The thermostat and cooling system failed and were replaced in 2024. Multiple sensors have failed. The braking system remains noisy even after brake replacement. The lane detection safety system does not provide audible alerts. The vehicle ... Read more

Crash

Incident date: Feb 6, 2026

While driving down the road, my 2023 Yukon 6.2L engine shut down, shifted to neutral, and a message on the screen said “press start again” leaving my family in a powerless vehicle in the middle of the road in moving traffic. There were no warning signs nor is my vehicle included in a current recall. The vehicle will be taken to the dealership tomorrow morning.

Incident date: Jun 16, 2025

I purchased my 2020 gmc sierra 1500 6.2L in September 2024 with 80,000 miles. 9 months later the lifters gave out. Had them replaced and 6 months later, the lifters again were bad and was knocking. They are now replacing the lifters and cam. I am so disappointed that this is happening. I hear that the 2019 and 2020 was not included in this recall! Why not!! If it’s still doing the same thing and... Read more

Incident date: Feb 5, 2026

On 5 Feb 2026 I was starting my 4-hour drive back home. 15 minutes into my drive my truck lost power, several lights and the engine light came on. Truck was sputtering and making harsh engine noises and shut off on me. I was forced to exit Loop 2 (a major highway). Once I was able to restate the truck I went straight to the dealership. This truck had the recall done 15 Oct 2025. However, this iss... Read more

Incident date: Jan 18, 2026

To start off my truck has been to the dealership multiple time for the camera. After third time in the shop they fixed that issue. Then the infotainment started acting up after about 4 times in the shop it was fixed. They gave me the prescribed fix for the engine recall in november. Engine passed the test. Then 3 weeks ago the engine siezed up from the crank and bearings on the interstate doing 7... Read more

Incident date: Jan 18, 2026

To start off my truck has been to the dealership multiple time for the camera. After third time in the shop they fixed that issue. Then the infotainment started acting up after about 4 times in the shop it was fixed. They gave me the prescribed fix for the engine recall in november. Engine passed the test. Then 3 weeks ago the engine siezed up from the crank and bearings on the interstate doing 7... Read more

Incident date: Jan 18, 2026

To start off my truck has been to the dealership multiple time for the camera. After third time in the shop they fixed that issue. Then the infotainment started acting up after about 4 times in the shop it was fixed. They gave me the prescribed fix for the engine recall in november. Engine passed the test. Then 3 weeks ago the engine siezed up from the crank and bearings on the interstate doing 7... Read more

Incident date: Feb 6, 2026

The contact owns a 2016 GMC Canyon. The contact stated that while the vehicle was parked, the steering wheel seized, with the power steering warning light illuminated. The contact stated that the steering wheel became difficult to turn. The vehicle was taken to the dealer, where it was diagnosed and determined that the power steering gear had failed and needed to be replaced. The vehicle was repai... Read more

Incident date: Feb 3, 2026

The contact owns a 2019 GMC Yukon. The contact stated that while driving approximately 5 MPH, a second vehicle traveling approximately 65 MPH crashed into the front drivers side of the vehicle. During the crash, the vehicle sustained severe front-end damage, but no airbags in the vehicle deployed. The contact sustained injuries that included fractured ribs and a fractured left hip, and a sternum ... Read more

Crash 3 injured

Incident date: Nov 14, 2025

catastrophic engine failure to due connecting rod bearings spun on the crankshaft damaging the crank and sending bearing material throughout the oil galleries

Incident date: Feb 5, 2026

Check engine light came on. Went off a little later and then came back on. Took it to the dealership where they ran codes. They changed the fuel injector and spark plugs based on the codes listed. They heard a noise coming from under the engine and felt like it was the same failure that it happened in the 2021 to 2024 Yukon models those engines had been recalled. Was quoted $15,000 for a new engin... Read more

Incident date: Feb 6, 2026

Seat emblem (Denali) pulls and rips out hair while sitting in seat.

Incident date: Dec 19, 2025

Vehicle was taken to dealership and test was run. Service manager notified me it passed and told us about change of oil. Then recently engine stopped on us twice on the interstate with no power. We finally got it to the dealer and while they were test driving it lost power and they had to have it towed. Now we have been told we are needing a new engine and have not been given any time line. We hav... Read more

Incident date: Jan 23, 2026

The contact owns a 2020 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the engine made an abnormal popping and crackling sound. The traction control, check engine, and several other unknown warning lights were illuminated. The message "Service Emergency Brake" was displayed. The engine later made knocking sounds, and the vehicle vibrated while driving. The vehicle ... Read more

Incident date: Feb 2, 2026

Catastrophic engine failure. Engine failed while driving and lost all oil pressure. Nearly cause accident