Table 1 shows one common equipment related problems of the 2026 GMC Yukon.
| Problem Category | Number of Problems |
|---|---|
| Equipment problems |
While operating the vehicle, I began to hear a metallic grinding noise originating from the center of the engine compartment. The sound was clearly audible within the cabin. Approximately one mile before the vehicle ultimately failed, the engine began to malfunction. As I slowed to a stoplight, the vehicle started to shake before shutting off abruptly and entering a coasting state. All electrical systems powered down and the vehicle would not restart. Shortly thereafter, heavy smoke began to emit both inside and outside the cabin, visibly coming from the hood and through the air vents. There was also a distinct burning odor. I attempted to restart the vehicle multiple times without success. The dashboard displayed the message: “conditions not suitable to shift. ” due to the vehicle becoming disabled on a curve and posing a safety hazard, I contacted the sheriff’s office for assistance to prevent a potential collision. Upon their arrival, it was noted that the engine compartment and hood area were exceptionally hot, particularly where the smoke was originating. The dealership has since confirmed they have also been unable to restart the vehicle. The vehicle has been inspected by the GMC dealer and is currently pending further evaluation by a gm-certified mechanic to determine the root cause. Prior to this incident, there were no warning lights, system messages, or other noticeable symptoms indicating an issue.
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 systems are critical safety features designed to assist with vehicle stability, traction, and driver control, particularly during emergency maneuvers or adverse road conditions. The warning indicators raised concerns that the vehicle could unexpectedly lose stability assistance, traction management, or engine performance while driving. This placed the driver and others at risk because the vehicle’s ability to respond safely during normal or emergency driving conditions could have been compromised. The repeated recurrence of the issue, even after dealership repair attempts, raises concern regarding the reliability and effectiveness of the corrective action performed.
**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 days, and on hot days it fails the vast majority of the time, unpredictably, after the vehicle heat-soaks in the sun. When it fails, the entire screen goes dark and I lose the backup camera and surround-view cameras, all hvac/climate controls, audio, navigation, and most secondary controls. Steering, brakes, and engine are unaffected. This creates two safety hazards. First, loss of the rearview camera image eliminates rear visibility when backing — the exact risk fmvss 111 is intended to prevent — raising the chance of a backover crash. Second, loss of all climate control in extreme heat endangers occupants in north carolina summer temperatures, and a blank, unresponsive screen is a driver distraction. Here's everything in copy-paste form for the NHTSA complaint. *:** 1gks2bkd1tr227930 **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 —.
I am submitting this complaint to report a safety defect involving a 2026 GMC Yukon xl at4 equipped with the gm brembo brake upgrade. The vehicle is sold as equipped with a full-size spare tire; however, the spare tire/wheel supplied cannot be mounted due to interference from the brake calipers. This incompatibility was discovered only after a flat tire event on [xxx], during which the vehicle could not be safely returned to service. The brembo brake upgrade is a gm-designed option that is installed by the dealer in all cases. Despite this, the vehicle was delivered with emergency equipment that is unusable in the event of a flat tire. Gm has acknowledged the incompatibility and relies on a warning label placed beneath the vehicle, rather than providing a compatible spare or disclosure at the point of sale. This defect resulted in a prolonged roadside emergency involving an elderly passenger and a failure of manufacturer-provided roadside assistance. I believe this condition affects all vehicles equipped with the brembo brake upgrade and represents a systemic safety issue involving emergency preparedness and disclosure. Supporting documentation and a detailed incident narrative are available upon request. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).
In the 2026 Yukons, almost all physical buttons have been replaced by the giant center touchscreen. When starting my vehicle, about a third of the time the screen will not come on, and can’t be turned back on by any means. It will randomly come back on after a few more trips/restarts. This renders several critical systems inoperable. All hvac does not work, defrosters aren’t available, back up cameras and parking assist is not available, and control of any navigation functions or options (ie heated/cooled seats) are not possible. There are no physical buttons for these items, so there are no other options. Voice commands do not function properly when the screen is black, so no option there. After my third visit to the dealership and an open case with gm, they are finally authorizing a screen replacement. We will see if this fixes it. However, my previous explanations from gm pointed to a nebulous future software release, with no date or detail.