2025 GMC Yukon

On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.  This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V-274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. Additionally, ODI has received 191 reports of L87 engine failures in engines produced after the production period cited in Recall 25V-274. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI is opening this Engineering Analysisto continue investigating complaints of post-remedy engine failure. ODI is expanding the scope of this Investigation to include engines produced after the production period cited in the recall. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

My 2025 GMC Yukon AT4 Ultimate (VIN [XXX]) has started its engine by itself at least three times when nobody commanded a start. Two of those unattended starts happened while the vehicle was parked in a closed residential garage, which creates a serious carbon monoxide risk to people in the home. I now park it outdoors until the cause is found. The most recent incident was XXX at 7:08 a.m. Central time. Occupants were asleep and nobody started it; both key fobs were accounted for. The myGMC app history shows a successful remote Start at 07:08 AM that none of us sent, followed by two failed Stop attempts at 07:21 AM ("Yukon not responding. Use key to start manually and restore connection."), which I sent after learning it was running. I reported this to OnStar (case XXX) on XXX. OnStar said it could see multiple start attempts persisted through the app but could not see which device or account sent them. The case was escalated to GM's senior technicians, who were unable to trace the source of the start commands. A GM call on XXX was dismissive and did not resolve the issue. The vehicle can still start remotely with no explanation of where the commands come from. Dealer: Royal Buick GMC, Vestavia Hills, AL. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11776867

Incident

Nov 8, 2026

The contact owns a 2025 GMC Yukon. The contact stated that while driving at 55 MPH, the brake assist failure and service esc warning lights were illuminated, the brake pedal became very stiff. The vehicle failed to stop as needed and coasted off the roadway and shifted into park(P). The manufacturer was notified of the failure. The vehicle was towed to the dealer but was not yet diagnosed. The failure mileage was 39,481.

NHTSA ID

11773700

Incident

Oct 25, 2026

Mileage

39,481 mi

While driving my vehicle, i noticed no sound coming from infotainment, signaling or lights being able to turn on. After pulling over at the nearest gas station, i parked and turned the vehicle off and waited for 30 minutes. Soon after that time, i turned the vehicle on and sound came back. However, i noticed the fuel management system begin to soon immediately kick in hard and loud while i started to drive away. This caused a major concern because i was with my family and didn’t know if ok we were going to be able to make it to my daughter’s softball tournament and home safely.

NHTSA ID

11771021

Incident

Oct 10, 2026

[XXX] - Catastrophic engine shutdown. Yes engine is still at Don Ledford Automotive Group, Cleveland, TN During the engine shutdown, we were still moving on a two lane highway in rural South Carolina. Other vehicles had to swerve/pass to avoid our sudden slowdown. On [XXX], I had the car towed(Dealers Choice - $1,488) from Cooper Chevrolet in Waltersboro, SC(5.75 hours from my home) to my home dealership....Don Ledford Automotive Group. On [XXX], Dealer confirmed complete crankshaft bearing failure and supposedly is going to replace the entire engine. No warning lamps, messages, etc. Only warning we had was a "pop" sound while doing around 60mph. From that moment we had about 5-6 minutes until the car completely shut down in a parking lot on the side of the road. Other items which I have had to deal. 1. On[XXX], getting a rental car in Barnwell, SC so we could continue our trip - (B&B Ford-$800) 2. On [XXX], had to get a rental car at Charelston, SC Airport (Avis-$677.92). I needed the car so I could continue my business trip. On [XXX], my wife returned the car to B&B Ford in Barnwell, SC. I continued on my business trip and returned the rental car I got at the Charleston airport on [XXX] to the Chattanooga, TN Airport. There I had to rent a different/less expensive rental car from Hertz($165.42) on [XXX]. 3. Through Enterprise, GM has provided a rental car from INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11770422

Incident

Sep 17, 2026

Engine failure at 20,959 miles (GM 6.2L V8). Sudden knocking noise. I heard noise at idle, accelerating, and decelerating. Sounds increased in volume / frequency within a 24hr period and driving it only a few miles. GM dealer verified engine failure and is ordering a replacement under warranty.

NHTSA ID

11767907

Incident

Sep 28, 2026

The contact owns a 2025 GMC Yukon. The contact stated that while driving 50 MPH, the vehicle started shuddering. The failure was a recurring failure. The dealer was contacted in person, and the failure was associated with the dynamic fuel management system. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 375.

NHTSA ID

11765812

Incident

Nov 2, 2025

Mileage

375 mi

The contact owns a 2025 GMC Yukon. The contact stated that while driving approximately 10 MPH, the vehicle unexpectedly lost motive power and came to a complete stop in traffic. There was no warning light illuminated during the failure. The vehicle was restarted; however, the vehicle failed to shift into gear, and the “Service Transmission” message was displayed. The vehicle was towed to the dealer but was not diagnosed or repaired. The contact expressed concerns that the failure could have resulted in a crash or created a safety risk to the contact and the contact’s children while occupying the vehicle. The manufacturer was not made aware of the failure. The failure mileage was approximately 30,765.

NHTSA ID

11765045

Incident

Sep 17, 2026

Mileage

30,765 mi

The contact owns a 2025 GMC Yukon. The contact stated that while driving at an undisclosed speed, the engine seized. No warning lights illuminated. The vehicle was towed to a dealer, where it was diagnosed that the engine, radiator, and an unknown belt needed to be replaced. The vehicle was repaired; however, the failure recurred. While driving at an undisclosed speed, several unknown warning lights illuminated, and the engine seized upon arriving at the dealer location. The vehicle failed to restart. The dealer diagnosed that the generator and air conditioner failed and needed to be replaced. The vehicle was in the process of being repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was approximately 33,018.

NHTSA ID

11760299

Incident

Aug 11, 2026

Mileage

33,018 mi

This Preliminary Information provides diagnostic tips and guidance for situations where key fobs cannot be learned or programmed successfully.

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3

Beginning with 2026 model year production, the floor console/armrest lamp design was changed by removing the tilt-switch ball. As a result, the lamp remains illuminated when the floor console compartment lid is closed. The BCM turns the lamp off after the ignition is switched off to prevent battery rundown. This PI is to inform dealers of the change in the lamp and operation of the lamp following repairs.

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.

This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener and to replace the opener with a new updated part.