2023 GMC Yukon XL problems

“While driving the car, I was stopping at a stop light and the engine turned off and stopped moving. The check engine light came on and said low oil pressure, turn car off. Code P0016 was sent to my email stating to get car fixed immediately. I could no longer turn my car on or move it. Car was towed to dealer and they confirmed that engine is locked and will be replaced.”

“My vehicle 2023 gmc yukon xl with 5.3 , I have about 145000 miles on my suv. This vehicle have known defect in valve body and transmission, its same as 2021-2022 models ( GM Special Coverage N242454441 ) gm has acknowledged and doing special coverage for those years , last night I was on highway speed and got harsh shifts and I recieved errors on my screen something saying limp mode , and check engine light , I had to immediately pull over and I scan the code ( I had obd scanner in car ) I got 2 coded p0700 and p0747 , both for transmission and upon checking this is known issue for valve body and transmission, gm dealer has refused a special coverage on my vehicle and said this isn't covered repair , all of the sudden going in limp mode on highway put me and others life in danger I could have been rear ended while moving to pull over.”

“At around 7pm on Sunday October 18th I was driving on an interstate at about 80mph in the far left lane (of 3 Lanes) when, without any warning whatsoever, the engine power completely shutoff and the car went into neutral. The dash screen said to start the engine due to no power or low battery. I hit the start button and all the lights including all controls, blinkers, dash lights shut off. So with no blinkers, no lights, no power brakes, no power steering we were coasting in the fast lane of a usually unsafe stretch of an interstate at night. Luckily, I was able to navigate without any power to the right shoulder (lucky this was a stretch that had a shoulder) and coast to a stop. I had my wife and 4 kids in the car with me. The car was dead and said the engine battery was low. When the engine start button was pushed nothing happened, car was dead with no heat. We called onstar and requested a tow and were able to order a Lyft ride for my wife and 4 kids. The Lyft driver came to pick them up on the adjacent frontage road and they had to run across the grass median to get into that car, there was no other option to get them off of the unsafe shoulder. I stayed…”

“The engine of this car failed at high speeds on [XXX], in [XXX], at 40,000 miles. GMC claimed the lifters in the 3rd cylinder failed and they were replaced under warranty. The lifters in the 3rd cylinder failed again, at high speeds on [XXX], at 77,000 miles. GMC claimed the lifters and crank shaft needed to be replaced. After paying for the repair and getting the car back, the engine locked up and failed within 30 miles of being fixed at 77,000 miles. Prior to these issues, there were no warnings and no symptoms. The car supposedly was not included in the engine recall by GMC. Two of the three incidents happened at speeds of 75 mph, the third occurred on a highway and speed of 55 mph.”

“The contact owns a 2023 GMC Yukon XL. The contact stated that the vehicle was losing oil, and the engine was running rough. There was an abnormal burning odor after driving the vehicle. The vehicle received an oil change; however, two weeks later, the oil warning light illuminated. The vehicle was towed to the local dealer, where it was determined the oil level was approximately 2 quarts low, and another oil change was performed. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 70,000.”

“On November 3, 2026 at the interception of E Edgewood Dr and N Friendswood Dr, at a stoplight. Yukon XL has approximately 73K miles. There were no injuries and no police were called. I was operating my 2023 GMC Yukon XL using the adaptive cruise control system. While approaching a traffic light, the vehicle came to a complete stop as expected. While stopped at the red light, the vehicle unexpectedly began moving forward without my intention, resulting in a collision with the vehicle directly in front of me. The collision caused front-end damage to my vehicle. No airbags deployed. Following the incident, the cruise control system became unavailable and would no longer allow me to activate it.”