2023 GMC Yukon Xl

While driving with my cruise control set to 75, my vehicle began losing speed and power for no apparent reason. I was able to fortunately pull over on the shoulder of the road when the engine turned off without pushing the stop button. At this point I put the vehicle in park and tried to restart the vehicle with no luck. It was at this time I contacted my husband and he was able to come load the vehicle on a trailer to tow to our GMC Dealership. This happened on January 28, 2025. There was 60,407 miles on the odometer. The dealership was able to tell us that the motor seized due to a bearing failure. I am glad that I was able to get over to the shoulder of the road and was not in the middle of road construction. This was a scary situation that could have been much worse.

Vehicle went to GM for recall repairs on 02/24/25 the morning after when I cranked my car it was dead. Jumped the car off then began hearing a "clicking noise" GM advised I replace my serpentine belt as they noticed it needed replacement when doing the recall repairs. 02/26/25 serpentine belt was replaced but car still seemed to have power issues when cranking. 02/27/25 car barely cranked then while driving down the highway I lost all power and power steering to the vehicle. There was no warning, no check engine lights etc. The screen went black then car shut off then the screen said "press start to restart." I was BARELY able to get the vehicle safely off the road with vehicles in front, behind, and in the other lanes. It could have caused a fatal accident. GMC still has my vehicle with NO UPDATE on replacement engine timeline.

Recently, while driving my 2023 GMC Yukon Denali XL Ultimate (with only 19,457 miles) on the expressway, my vehicle suddenly lost all power and steering at high speed—without any warning lights, noises, or alerts. One moment everything was normal, the next I was gliding in silence, completely powerless in a 6,000 lb vehicle surrounded by fast-moving traffic. I was nearly sideswiped multiple times as I tried desperately to avoid a potentially deadly accident. This failure wasn’t just mechanical—it was terrifying. And it could have cost me my life. What happened next only made things worse. GM Roadside Assistance left me stranded on the side of the road for nearly 4 hours. Multiple tow trucks were sent, but none had the right equipment because the vehicle could not be put into neutral due to the engine failure. I was left vulnerable, frustrated, and utterly unsupported while GM fumbled through their response.

Vehicle started making noise and idling rough 1-2days after receiving it back from oil change. It was absolutely fine and out of nowhere this happens. I’m great with cars and this is my 5th GMC Yukon and I bought this one at 0 mileage so I am very familiar with this car. There is absolutely no explainable reason my car is doing this I had it inspected and the dealer told me this has been happening lately to a lot of the gmc Yukons and I would need major engine repair for a brand new car!!! Over 20k in repairs and parts. I have 6 children and we have had to abandon the vehicle on Christmas Day to drive our old 2019 GMC Yukon which I think is starting to sound a lot like the 2023 under the hood! It’s roughly idling to. I’m afraid we might be taking the bus if I don’t pay 20k. I looked to see if there were recalls but found none. there is no way engine failure should just pop up after we spent tons of money keeping these cars in perfect shape and only being serviced at the dealership. This should be investigated and repair records pulled to find people who are not aware

Vehicle "Low Oil Warning" light appeared at approximately 3000 miles after an oil change. Checked the oil and it was nearly 3 quarts low. Without any visible leaks or loss of oil, I called local GMC service department and had them inspect. They found that 4 pistons and other components needed replaced due to failure. There was no signs or symptoms other than the warning light. The car has been in the shop for 3 weeks. I currently do not have my vehicle, but I was going to use this vehicle for a long road trip and I'm sure this would have been a catastrophic loss, and possibly a safety issue for my family traveling 1k miles at highway speeds.

Driving on highway with my [XXX] daughter in the car, screen all of a sudden flashed “press start” on the dashboard and the car died in highway at the off ramp exit. Had to call state police because we were blocking ramp and almost got hit multiple times. Could not get car to restart, state police towed off highway for $200 and AAA towed to dealer. Took over a week for dealer to claim GM owned up to engine failure. No rental car provided. Sold for a $37,000 loss a year and a half after purchase with only 27,000 mile on the vehicle. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My daughter and I were coming and got off of the [XXX] on the [XXX] exit ramp to go home. When we were pulling up the vehicle suddenly showed the check engine light and the vehicle turned off. It would not go into neutral, it would not restart. I am being told there is no active recall on it; however, in researching, it appears that I am one of many cases of this exact scenario. Being stuck on a busy exit ramp is not safe and had this have happened in the road construction on [XXX] , this could have been a much different scenario even fatal. This vehicle is a 2023 with 40,355 miles on it. The Denali is currently at the dealership it was towed to, and I am waiting on the diagnostic. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

My wife was travelling down a two-lane road at 50mph when the engine suddenly shut off affecting steering. She was able to maneuver to the shoulder, but the vehicle would not restart. Could have been much worse. Had it towed to the dealer we purchased it from, and they informed us the engine had seized. There were no warning signs or dash lights indicating there may be an issue.

I am writing to express serious safety concerns regarding our 2023 GMC Yukon XL Denali, which has been in our possession for less than two years and has only 24,000 miles. On multiple occasions, while driving at high speeds on the freeway with our four young children, the vehicle unexpectedly lost power and shifted into neutral without warning. This occurred approximately four times on March 9, 2025, when we contacted OnStar for assistance. Despite their response indicating no alerts on their end, we were advised to reach out again if the issue persisted. Unfortunately, the problem did occur again on March 16th, which prompted us to contact OnStar and have the vehicle towed to the nearest dealership for further evaluation. The service department has since informed us that the motor requires replacement. Upon conducting additional research, it seems this may be a known issue with many vehicles manufactured by GM around the same time. We are deeply concerned by this safety hazard, especially given that the malfunction could have led to a life-threatening accident. While we are grateful that we were fortunate enough to avoid any serious consequences, we believe a solution beyond standard repairs is necessary to restore our confidence in the safety of this vehicle. Our family’s well-being and trust in the reliability of our vehicle are of the utmost importance.

During a cross country road trip on [XXX] we experienced the dreaded 6.2 gm engine failure. As I was driving I lost all power going up a steep grade in the fast lane of a 4 lane interstate. There was no room to pull over to the left side so I had to very quickly cross 4 lanes of traffic without any power. I was able to get the yukon off the interstate as safely as possible. Once I placed the vehicle in park it shut off completely. I tried to restart it several times. Finally got a message on the dash saying engine oil cooler was hot or oil was overheated. Called gmc and got a tow to nearest dealership. I rented a vehicle on my own dime and drove that back to north dakota where we live. We are still in the process of getting some of our expenses reimbursed. I called an Uber to pick my wife and 3 daughters up to get them to a near by hotel. My son snd I stayed with the vehicle on the side of the road till the tow truck arrived. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)