2026 GMC Yukon owner complaints

My engine with less than 5,000 miles died (engine was blown). While driving on highway engine died and wheels locked and almost caused a major accident. I had to get a tow and bill cost me 700.00. GMC is giving me the run around. Dealer stated that engine will need to be replaced. GMC is doing nothing to assist me, I have a car note with no truck GMC is the biggest scam.

vehicle lost power on highway with my sons family in the car. Vehicle was towed to dealer from which it was purchased . outcome was the motor failed and a remedy could be months out with gm only offering a 35/a day rental from enterprise which no vehicle that compares can be rented at that cost.

Nothing has happened yet. However, after only 308 miles… my 2026 Denali is knocking and ticking very loud. Why? How is this possible? We’ve only had it 2 weeks! I have only driven it 5-6 times in the past 14-15 days, too worried that this might happen. But I was reassured by the dealership it wouldn’t. But here I am now. I am so disappointed. Being a Disabled Vet I thought we could have something that we both liked. Now I am upset because I feel betrayed and lied to. I did a video but it’s too large to upload so I can’t get it under 10MB.

Motor blown up, truck shut off while driving. Loss of all power.

2026 Yukon Elevation with 3,957miles. I was driving down the road and pulled into the turn lane at an intersection. Vehicle cut off with the Auto Start/Stop function and would not start back up. I continued and tried to restart the vehicle but would not start; I was blocking the lane with cars continuously going around me. Vehicle stated service transmission on the display- I was unable to put it into neutral to push it out of traffic; You are only allowed to put it into neutral when crank and couldnt get the accessory mode to come on without the vehicle trying to start. I called the local police department and they sent an officer to direct traffic until a tow truck showed up. Both observed the vehicle not starting. There were no symptoms prior to the vehicle cutting off, only once auto

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.

The contact owns a 2026 GMC Yukon Denali. The contact stated that while driving approximately 55 MPH, the vehicle stalled and failed to return to normal operation. The message "Shifting to Neutral" was displayed on the instrument panel. The vehicle was towed to the dealer, where it was diagnosed, and determined that the engine needed to be replaced. The vehicle was not repaired. The contact researched and became aware of an unknown recall however, the VIN was not under recall. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 3,303.

Engine failed at 12, 430 miles. Dealer said it required a new engine. This happened on 06/06/2026 and I am still without my very expensive vehicle. There were no wanring lamps or other engine failure notificatioins before this occurred.

So the ultimate failure is from a catastrophically failed crankshaft journal thrust bearing. Which could be caused from one of two things: 1) The crankshaft thrust bearings they are putting in these motors are made with inferior materials, probably cheap Chinese crap or 2) The crankshaft end play tolerance was never set properly, giving the crankshaft the ability to move forward and backward in the engine more than it was designed to. Which will over time beat up on the thrust bearing until it fails. In either case it would result in the same progressive issue showing itself. It will start as a squeak here and there. Which, as the soft thrust bearing material is unable to hold the proper oil film thickness for lubrication, will spiral into more and more heat being sent into the adjacent co

The contact owns a 2026 GMC Yukon. The contact stated that while driving at 65 MPH the engine seized. All the warning lights illuminated after the failure. The vehicle was towed to the local dealer, where it was diagnosed that an engine replacement was needed. The vehicle was not repaired due to the part being backordered. The manufacturer was not contacted. The failure mileage was approximately 10,000.

Engine starting clicking during highway drive then engine failed mid-drive and engine was trying to restart on its own mid drive. Vehicle totally stalled out in the street, with numerous attempts the engine did not start. Total mileage on car was 2,900.

The engine started a soft, cyclic tapping sound intermittently on 2/28/26 while I was out of town on a trip. No alerts showed on the GM systems app. On 3/1, while driving home from the trip, the car started hard braking at cruising speed and the engine died and would not restart. I had the car towed to the closest GM dealership and have been told the engine locked up. I just rolled 6000 miles and showed 18% oil life from the original engine oil it came with from the factory. I had been watching the engine problems for years now and waiting for them to be resolved before buying a new GM; only to be lied to that the issue was resolved. Now they're going to install yet another defective engine.

The center screen (infotainment), which shows controls for cabin climate (A/C, heat) and many more functions of the vehicle fails to turn on at random times. It is available for inspection. The external air temperature is in the upper 90s; temperature inside the car’s cabin is easily 115 or higher. This makes safe operation of the car not possible. Additionally passengers cannot occupy the vehicle safely at these extreme temperatures. The problem has been reproduced by dealers. UNKNOWN whether the components have been inspected by the manufacturer. No warning lamps or lights.

**Incident / vehicle info:** - **Year / Make / Model:** 2026 / GMC / Yukon (Elevation) - **Date incident began:** ~mid-March 2026 - **Odometer / mileage:** under 1,000 - **Component:** Back Over Prevention: Rearview Camera (and/or Electrical System / Visibility) - **Crash? Fire? Injuries? Deaths?** No / No / No / No - **Vehicle still owned:** Yes - **Dealer or manufacturer contacted?** Yes — servicing dealer Rick Hendrick City Chevrolet (Charlotte); GM Customer Care cases 101763052 and 102071761 - **Description (paste this — ~1,700 characters, under the ~2,000 limit):** My 2026 GMC Yukon Elevation experiences intermittent total failure of the center infotainment/display screen, beginning around mid-March 2026. The failure is heat-related and intermittent: the screen functions on cool day

My 2026 GMC Yukon AT4 (VIN [XXX] ) has a manufacturing defect in the second-row driver-side captain's chair. The C-clamp / latch mechanism that secures the seat to the floor was depressed (partially released position) at delivery on [XXX]. I was able to manipulate the latch enough to work but the release trigger then would not depress to release the seat back from a tumble position. My [XXX] daughter's car seat usually sits in this seat. This is safety-critical for two reasons. First, the second-row captain's chair is the anchored platform for my child's car seat. A seat not fully and correctly latched to the floor compromises the LATCH and tether load path that every car-seat manufacturer's certified installation depends on. Second, a captain's chair that will not fold or tumble blocks

The vehicle experienced repeated failures involving the Electronic Stability Control (ESC), Traction Control System, and Check Engine system. Warning indicators for the ESC, traction control, and check engine illuminated while operating the vehicle. The issue has occurred on two separate occasions. The first incident occurred on May 4, 2026. The vehicle was taken to the dealership for inspection and repair, and the dealership advised that the issue had been corrected. However, the same problem reoccurred on May 7, 2026. The vehicle has been inspected by the dealership service department, and the malfunction was confirmed. The affected components and vehicle are available for inspection upon request. The failure created a significant safety concern because the ESC and traction control syst

The vehicle was parked and turned off for approximately 45 minutes on a residential street along the curb in front of a house when the rear window suddenly shattered. I was inside a nearby house at the time. A landscaper working in the area reported hearing a single loud pop and then my vehicle’s alarm sounding. He stated he was not close to the vehicle and did not see any object strike it. When I inspected the Yukon, the entire rear window had exploded outward and inward, leaving no glass remaining in place. Glass was scattered both inside the cargo area and outside behind the vehicle. The upper liftgate section had also popped open, which is consistent with the sudden pressure release that occurs during spontaneous tempered‑glass failure. There are no impact marks, dents, or paint damag

The contact owns a 2026 GMC Yukon. The contact stated that the vehicle was purchased, the contact stated that, because of the open recall, the vehicle was not released to the contact. The contact referenced the open recall, NHTSA Campaign Number: 26V304000 (Wheels) however the parts were unavailable. The dealer informed the contact that the parts were unavailable. The manufacturer was not contacted. The contact had not experienced any failure.

While operating my 2026 GMC Yukon AT4 (VIN [XXX] ) on [XXX] Pelahatchie, Mississippi, the panoramic moonroof spontaneously shattered at highway speed. No impact, no debris strike, no external cause. The failure produced a violent report and showered tempered glass into the cabin, forcing an emergency stop on the shoulder during heavy commercial truck traffic — a serious secondary-collision risk caused directly by the failure. I spent hours roadside clearing glass and duct-taping the open roof aperture to make the vehicle minimally drivable. Nighttime wind forced an unplanned overnight stay in north Alabama before a multi-hundred-mile drive back to Washington, DC with the vehicle compromised. In DC, I was forced to park the visibly compromised vehicle in a high-foot-traffic area with work