2026 GMC Yukon XL Recalls & Complaints

Incident: October 19, 2026 · Filed: October 22, 2026

We own 2026 GMC Yukon XL Denali with 6.2L V8 engine with just under 4600 miles. On Monday October 19, 2026 while driving the engine seized up. It is at dealer and the are replacing the engine, radiator and about 65 other parts under hood. We do have a very short phone video of the noise it made right as it seized up!! We heard about investigation ongoing and wanted to help.

Incident: October 18, 2026 · Filed: October 22, 2026

The driver side head light developed a stress fracture on the first cold day we had in Long Island. It has been looked at by the dealer SuN gmc who are denying responsibility and claiming it was damaged by a rock. There is no visible damage to the outside of the light.

Incident: October 19, 2026 · Filed: October 20, 2026

Truck has shuttered, rough idle since May 2026 after purchased new March 2026. We have been to two different GMC dealers who cannot duplicate the problem. Last week the truck started to shutter regularly after highway travel. When coming to a stop in traffic, the truck shutters to kill, loses power, RPMs drop below 500 and then recovers to a rough idle. Last evening Oct 20,2026 while driving the engine light came on, vehicle computer stated “ Issue with Engine / Transmission System Schedule service now.” This is the third time the vehicle will be at the GM dealer for diagnosis. Two times previous, dealer stated “unable to duplicate customer’s complaint.” We have owned this 2026 GMC truck for 8 months, purchased new and have nothing but issues which no GM dealer seems to be aware of nor can duplicate. This vehicle is unreliable and now has sat out of service awaiting a diagnosis for over 15 days at two different dealers. We have opened our second case with GMC Customer Care’s with zero assistance. It is the duty of a manufacturer to provide consumers with a safe and reliable vehicle. My 2026 GMC Yukon Denali is not safe and puts me and my family at risk of engine failure and a potential accident. We have documented every event and have videos of described defective vehicle operation.

Incident: October 11, 2026 · Filed: October 12, 2026

While driving there was a noise that started in the engine area. The vehicle was going 55-60 mph at the time it started. It became more and more frequent. The check engine light came on just before the engine completely seized up and lost all power. Dealership is saying there is definitely internal engine noise and engine failure.

Incident: October 4, 2026 · Filed: October 5, 2026

I’m of average stature at 5’ 9” and when seated in the driver’s seat of my 2026 GMC Yukon Denali XL my left eyeball cannot see the switch to activate the four way hazard flashers because the steering wheel blocks the view of the switch. (See Attached) I’ve had the vehicle for just over two months and I found it difficult to find the hazard switch since day one. It was even more challenging tonight coming home. I was northbound on IH35E just south of IH20 in heavy traffic and the traffic rapidly came to a stop due to a crash. It took an extra level of attention to find the hazard switch at night in heavy traffic. After I cleared the accident I started to close one eye and then the other. That is when I recognized my left eyeball is completely blocked by the steering wheel. There is plenty of room to move the switch over an inch or two so both eyeballs can see the switch with stereoscopic vision. Even in the daytime I struggle to find the switch once again from the placement of the switch and during the daytime the switch isn’t illuminated and the color of red isn’t a very vibrant red.

Incident: September 27, 2026 · Filed: October 1, 2026

Total Engine failure. This is the second time. The vehicle had under 2000 miles when the first engine failure happened and left us sitting on the Turnpike. Very unsafe!! We were assured we received a new "upgraded" engine only to find out GM decided to roll the dice with our lives and the lives of our family (grandchildren) and put another bad engine in our vehicle. I will never feel safe with this vehicle or that they are putting in "new" parts.

Incident: September 24, 2026 · Filed: September 26, 2026

What component or system failed or malfunctioned, and is it available for inspection upon request? ""6.2L Engine Failed with 4,785 miles"" How was your safety or the safety of others put at risk? ""Engine Failed in active highway jug handle and required police assistance and vehicle needed to be towed to the dealer."" Has the problem been reproduced or confirmed by a dealer or independent service center? ""The dealer has confirmed that the engine failed and needs to be replaced."" Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? ""At this point only the dealer."" Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?"" No just started sputtering and shout down.""

Incident: June 5, 2026 · Filed: September 18, 2026

The contact owns a 2026 GMC Yukon XL Denali. The contact stated that while driving 65 MPH, the engine seized. There was an abnormal burning odor inside the vehicle. The contact stated that the failure had occurred while driving on a busy highway in the middle lane. The local Police arrived and assisted with directing traffic. The vehicle was towed to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was repaired. The contact was informed that the failure was a known failure with the vehicle. The manufacturer was contacted by email and made aware of the failure. The failure mileage was approximately 5,000.

Incident: September 14, 2026 · Filed: September 14, 2026

The contact owned a 2026 GMC Yukon XL. The contact stated that while driving at an undisclosed speed, the vehicle suddenly turned off and lost engine power. There was no warning light illuminated. The vehicle was pulled over to the side of the road and was then towed to an independent mechanic to be diagnosed. The vehicle was diagnosed with engine failure. The manufacturer was notified of the failure. The dealer confirmed the engine failure. The failure mileage was 1,800.

Incident: January 9, 2026 · Filed: September 9, 2026

Computer screen is black 90% of the time. During this vehicle has no back up cameras, no control of air conditioning, no control of heat or defrost, no heated seats, no mapping system, no vehicle safety display of tire pressure, oil life, brake life, no ability to control radio. These features cannot be turned on with manual push buttons as they are controlled thru the computer screen. 2 complaints to GMC have resulted in them stating they have no fix as it is a software issue. They have refused dealer request to replace the computer. As a [XXX] with health issues, the vehicle has sat parked due to no air conditioning. With NNY winter weather approaching, vehicle is unsafe without heat or defrost. Vehicle was purchased on XXX and problem was immediate. I find it amazing that GMC has had 9 months to resolve and they do not have a single competent software engineer! GMC case #XXX issued on XXX6. Buy back denied as GMC states it does not meet NYS Lemon law because vehicle is drivable. I disagree as I feel it is unsafe. GMC case # XXX opened on XXX. On XXX I was notified by phone from GMC that Tech case was being closed as they have no way of repairing. Again, requested new computer but was immediately denied as they continue to use software excuse. GMC rep. stated it is my responsibility to periodically contact a GMC dealership to see if a repair is available. All GMC correspondence has been by phone as they will not put anything in writing. Meanwhile I have an 80,000 vehicle that I feel is unsafe heading into snow and cold. NYS AG complaint was a waste of time as they determined I should hire an attorney and take GMC to court. I do not want to risk my safety or anyone else on the road. Common sense tells me if my home computer had a blank screen, I would have to replace it! On XXX I left vehicle at NYE GMC in [XXX] for 5 days. They confirmed there is no fix, they confirmed screen is black majority of the time. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)