2025 GMC Yukon XL: engine failure

Filed Sep 17, 2026 · Engine, Steering · GA

The car stopped without warning in the middle of a very busy highway that could have caused an accident. The car had to be drug onto a wrecker because the wheels would not turn to be loaded on tow truck. Towed to dealership and have been advised that the engine will have to be replaced due to engine failure. The were no noises, alerts or notifications from the vehicle prior to immediately stopping in the middle of the highway. This is 2025 vehicle with 23k miles.

Filed Aug 31, 2026 · Engine · MO

Engine (L87) blew up on I-80 in passing lane with no warning 14,635 miles. Almost got hit by several cars trying to get off the interstate. Sat alongside the road for 1 1/2 hours until tow truck arrived in 101 degree weather. GM provided no roadside assistance since it was a Sunday. They were incorrect with their information which caused us to walk to nearest Walmart several miles. We were 5 1/2 hrs from home and our son picked us up. GM dealer installed new engine and we were without our vehicle 45 days with no alternative transportation provided. Our repurchase was denied and was incorrectly done so by Iowa State Lemon Law (purchased in Iowa)

Filed Aug 31, 2026 · Engine · 16,184 miles · LA

The contact owns a 2025 GMC Yukon XL. The contact stated that while driving 15 MPH, there was an abnormal grinding sound coming from the engine. There was no warning light illuminated. The vehicle was taken to a local dealer to be diagnosed, and the contact was informed that there was a catastrophic engine failure caused by the thrust bearing. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The contact referenced Technical Service Bulletin: 25-NA-307; as a possible cause for the failure. The failure mileage was 16,184.

Filed Jun 8, 2026 · Engine · GA

On May 6, 2026 while driving on the interstate, the vehicle automatically shifted into Neutral, and lost all engine power. The vehicle would not shift back into drive or even 4x4 neutral to be towed. The vehicle was towed to Sam Boswell GMC in Mt Dora, FL. The engine had seized up, and there were metal shavings in the oil filter which indicated a catastrophic mechanical engine failure.

Filed Apr 7, 2026 · Engine · TX

Driving 79 mph total engine seizure. Check engine light came on and seconds later a low oil pressure light and turn off engine. Engine died and went into neutral and had to coast to side of highway in middle of nowhere at 11pm at night.

Filed Mar 21, 2026 · Engine · CT

Engine failed, no check engine lights turned on. Needed to have the truck towed to a dealer

Filed Jan 12, 2026 · Electrical, Engine · NY

Vehicle Status: Brand New Current Mileage: Approximately 10,000 miles Incident Description On 1/8/26, while operating the vehicle on the interstate at highway speeds with cruise control engaged, the Check Engine light began to flash. Simultaneously, the vehicle’s warning system issued an alert stating that the engine oil was excessively hot. Immediately after these warnings, the engine began to emit a loud knocking sound and lost all power, shutting off completely while in motion. I was able to safely maneuver the vehicle to the shoulder of the road. Post-Failure Observations Upon inspection under the hood, I noted the engine was radiating extreme heat. I allowed the engine to cool completely before attempting a restart. While the engine attempted to turn over, it failed to start. Diagnostic Alerts Following the mechanical failure, I received multiple critical notifications via the GMC mobile app citing various engine failure errors. Summary Given that this vehicle is brand new with only 10,000 miles, a catastrophic engine failure of this nature is unacceptable. The vehicle was being operated under normal highway conditions when it became inoperable, posing a significant safety risk. I am seeking a full diagnostic review and a permanent resolution under the manufacturer's warranty.

Filed Dec 29, 2025 · Engine, Fuel system · VA

I purchased this vehicle in May of 2025. It currently has 9840 miles on it. While driving in October the vehicle shut down and locked up. After getting it towed to a dealer I was told the diesel motor and the fuel system were blow and seized and need to be replace. The vehicle is still currently in North Carolina while I live in Virginia. Supposedly parts are in for repair for 3 weeks now and I still don't have my vehicle nor any info on when I will get back. Davenport GMC of Rocky Mount and GM have been rather useless in this process. I cant believe I am going through this with a $90,000 car that was four months old.

Filed Dec 4, 2025 · Driver assistance, Engine · MN

Reduced engine power warning light came on at approximately 7600 miles on our new 2025 Yukon xl. Dealer inspected and ultimately decided the engine needs to be replaced due to crankshaft end play out of spec. This is a know GM issue. Incorrect thrust bearing was installed from the factory. Gm did not inform us of this issue. This could have resulted in catastrophic engine failure and cause to be stranded on the road. Not ideal when it is -20 degrees in my hometown. Dealer finally replaced engine then had lane departure unavailable and lane assist unavailable warning lights. Dealer claimed this was unrelated but all safety equipment worked when we dropped it off. Now it doesn’t.

Filed Nov 16, 2025 · Engine · MO

DuraMAX 3.0L LZ0 engine with defective crankshaft thrust bearing caused catastrophic engine failure requiring engine replacement. The event occurred at about 1,000 miles. There is a GM TSB that addresses this issue. This failure displayed all of the symptoms as described in the Technical Service Bulletin (TSB) 25-NA-307. The engine has been replaced by GM. There was only one cryptic dashboard message that "acceleration may be reduced", that briefly appeared and then disappeared, three days before the incident. With no check engine light, the mysterious message was chalked up to possibly a DEF low warning. DEF was added. The vehicle displayed no problems during those three days -handling normally. Then while at interstate speeds approximately 90 miles later, the warning that "acceleration is limited" flashed and the vehicle went into limp mode, shortly thereafter the check engine light illuminated. OnStar read the code - P06DD. The email from them stated the recommended action: "Service within 7 days." The following morning the vehicle was presented to a GM dealership service department. Loud "knocking" noises were originating from the rear of the engine compartment at that point in time. The service department reported the engine needed replacement and did so.

Filed Apr 26, 2025 · Engine · RI

We purchased the 2025 GMC Yukon XL on February 26, 2025. While I was heading out on March 24, 2025 I had a total engine failure. No warning sign or warning lamps were present. We had the vehicle towed to Hurd Auto Mall in Johnston Rhode Island where we purchased it. We were told that the engine had seized with only 1,488 miles on it. We saw that over 870,000 GMC engines from 2021-2024 had this same issue and/or have been recalled. We are curious if the 2025 model also have this problem.