The contact owns a 2022 GMC Yukon. The contact stated when she used the remote start function and entered the vehicle to complete the start sequence, she depressed the start button and the vehicle turned off. The contact stated that she attempted to use the start button and the vehicle would not start. The contact attempted to use the remote start feature and later tried her cell phone start app, the vehicle would not start. The contact stated that the instrument panel lights, power locks, and radio remained operative. The contact stated that the check engine warning light and other unknown warning lights illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic. The contact used a manufacturer app (OnStar) to diagnose the vehicle, she reported that codes P0E32 an P0E37 were displayed. The contact researched online and read that she could disconnect the battery and let the computer system reset. The contact stated the she was able to start the vehicle. The contact stated that she no longer used the remote start feature. The manufacturer had not been informed of the failure. The failure mileage was approximately 6,000.

- Yuba City, CA, USA

On September 9th at approximately 5:00 pm, my wife and I left Augusta and headed to Atlanta to attend an event. While driving highway speeds of about 70-80mph, the vehicle began to decelerate rapidly and then shifted itself into neutral gear. Unable to shift back into drive, I was forced to maneuver my slowing vehicle onto the shoulder of the highway, placing myself and my wife in danger of colliding with the other vehicles who were still travelling at highway speeds. After pulling over onto the shoulder, I was able to shift the vehicle into park and turn it completely off. After a few minutes, I turned the vehicle back on and integrated back into traffic. Approximately 20 minutes later, the vehicle began to have trouble accelerating and I was unable to exceed 65mph on a highway where the speed limit was 70mph, and the other vehicles were exceeding that. My wife and I were sitting ducks in Atlanta traffic. I once again planned to pull the vehicle over when it suddenly made a loud noise and began to vibrate violently. From the far left lane, I found myself fighting with a vehicle that refused to accelerate and was now becoming uncontrollable. I managed to take the next exit, and parked the vehicle. After turning off the vehicle, I waited a few moments and tried to start it again. The vehicle did start, but continued to vibrate aggressively, as well as make loud clunking and squeaking sounds from under the hood. There was also a smell of something burning. For our safety, my wife and I exited the vehicle, as it had been rendered completely inoperable. I was forced to have the vehicle towed. The vehicle is currently at John Miles Chevrolet Buick GMC in Conyers, GA. (678)374-4695. The dealer has not confirmed the problem. No inspection has been done to date. When to vehicle shifted to neutral I believe the only warning light said "Conditions not correct for shifting". It only appeared when the vehicle shifted into neutral.

- Grovetown, GA, USA

July 5, 2022. Engine Lifter Failure. While driving my new 2022 Yukon Denali (with only 14,400 miles on it), I made a right hand turn into a parking lot. The engine just shut off. No warning lights ever came on. The only thing I had noticed was some unknown noise when I started up the truck and getting underway. The sound promptly went away. I attempted to restart the engine but it would not even turn over. My vehicle was blocking the driveway to the parking lot, creating a traffic hazard on a major street. I had the vehicle towed to a GM dealer who determined the next day that engine had failed due to a known lifter problem. The head mechanic was able to get the truck restarted and the same issue replicated itself. The mechanic received approval to replace the entire engine assembly, but it is on back order. There is no ETA to when the parts will be available. I am fortunate that the vehicle did not shut down in a lane of traffic, on the freeway, or out in the desert or mountains. From my research, this issue with the engine lifters in the 6.2 liter engine has been known by GM for well over 10 years. The engine needs to be recalled and the lifter issue corrected.

- La Habra, CA, USA