2021 GMC YUKON Complaints

While driving the car, the glass sunroof spontaneously exploded. It was NOT associated with a rock strike, no other cars were nearby, and the vehicle was not under an overpass. The noise was extremely loud, similar to a gunshot. The sun shade was closed, otherwise broken glass would have showered down on the passengers.

Twice in a five day span vehicle stalled out, acting like it is not getting fuel. Each time it took several minutes of trying to restart and getting below fuel tank to give it a couple knocks to get it to start. Both times there was atleast a half tank of gas. Each time the car was running well when it suddenly slowed down on its own, the first time I was on a busy street resulting in the need for a tow and I had my grand baby with me. The second time it was an isolated road and surprisingly I had cell service to call for assistance. The tow truck driver told me he thought it was the fuel pump. I looked up my vin but it isn’t listed as one of the affected vehicles in the GMC Yukon recall, however it certainly seems like it is. I had no warning of any type with each incident, the car simply acted as if it ran out of gas. I have an appointment with a local garage. Additionally when this happens the vehicle does not let me shut it off. The engine isn’t running but I can’t power down the electronics system.

The contact owns a 2021 GMC Yukon Denali XL. The contact stated that during rainy weather, rainwater leaked into the vehicle through the drainage hose, causing an electrical short. The vehicle was taken to a dealer where it was confirmed that the drainage hose and wiring needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 55,000.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed and completing a turn, the forward warning collision system alarm sounded, but the vehicle failed to activate automatic emergency braking. As a result, the vehicle collided with another vehicle ahead. The air bags did not deploy. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the ABS. The vehicle was not repaired. A police report was not filed, and no injuries were reported. The manufacturer was not notified of the failure. The failure mileage was unknown.

I owns a 2021 GMC Yukon. My wife was driving approximately 70 mph when the vehicle suddenly stalled. The vehicle would not restart. The vehicle was not able to go into neutral. The vehicle was towed to the dealership who diagnosed that the fuel pump module failed and needed to be replaced. The vehicle is getting repaired but not covered under warranty or by recall. The manufacturer was made aware of the failure. The approximate failure mileage was 14000

Our rear seat belts no longer retract after unbuckling. We do not know if they will work in the case of an accident as they will not even retract their own weight after unbuckling.

While driving my check engine light came on indicating that service was needed on the Electronic Stability Control (ESC), traction control, Anti-Lock Brake System (ABS), brake assist the vehicle top speed reduced to 43mph. My braking system was compromised and I have to travel at reduced speeds on busy roadways to arrive at my destinations. I have taken the vehicle to a certified GMC technician for diagnostics and repair.

Car started making strange noises in the rear portion and was not driving as it normally would. Proceeded to take the vehicle to a GMC service dept. and was told the rear differential is close to failure and is "shot" and needs to be replaced. The service representative advised us to not drive the vehicle because it is unsafe to operate. Upon investigating it appears there was a recall for 2021 Yukon's for this same issue however this VIN number was not included in the recall but it appears this is the same issue. My vehicle remains at the service center waiting for the "differential assembly" to be replaced but it is currently on backorder and we were given no time frame of when this will be resolved or when the parts will be available.

FUEL PUMP POWER CONTROL MODULE SKU NUMBER 13537053 brand new GMC denali less than 9000 miles had serviced for 5 previous recalls drove for a week. Truck completely shut down on road no power will cause serious or death if person is on highway as engine turns off and car shuts down due to electric shift cant put car in neutral not even with key from key fob so if get vehicle towed cant even shift into neutral big fail on gm part and will cause major issues as vehicle just shuts off do to this issue no service light. Major accident waiting to habit and back ordered parts on a expensive machine

The lighting on the entire interior infotainment area will randomly go bright and dim all by itself. I was almost in an accident on the interstate due to this. It was blinding and distracting to have the lighting dim and then go bright. It has been randomly doing this for about a month. I called GMC and they said they had no record of this happening on other vehicles, however when I searched for the issue with my vehicle, I realized other GMC owners have experienced the same issue. I was able to get a video of it happening one morning while waiting in my driveway to drop my kids off at the bus stop. I was in the parked position. There are no warning or messages when the lighting malfunctions, so I am not at all prepared when the car turns the lighting to MAX brightness. It poses a risk when driving by blinding the driver, causing the driver to loose focus while driving trying to adjust the lighting back to dim. It is an unnecessary distraction. The dealership couldn't confirm any malfunctions in my car. As previously stated, I have a video of the malfunction, but I am not able to upload it. I am willing to send via email.