2022 GMC Yukon

In 2023, the vehicle began exhibiting erratic transmission shifting behavior, including harsh and unpredictable shifts while driving. The vehicle was taken to a GMC dealer for diagnosis and repair. Recently, the vehicle developed additional drivetrain and engine control issues related to the crankshaft position sensor circuit. The vehicle stalled while driving on a highway mountain overpass with multiple vehicles traveling behind me. When the stall occurred, the vehicle shifted into park and would not restart for several minutes. This created a hazardous situation due to loss of propulsion in active traffic at highway speed and limited shoulder space. Following diagnosis, the servicing dealer determined that the engine wiring harness requires full replacement due to internal wiring integrity issues affecting critical engine control signals. The crankshaft position sensor and related wiring are essential for engine timing and propulsion. Loss or corruption of this signal can result in reduced engine power, erratic transmission behavior, stalling, or no-start conditions. The earlier erratic shifting behavior appears consistent with conditions described in GM Technical Service Bulletin 21-NA-149, which identifies engine harness-related causes for drivetrain and shifting concerns. This issue appears to involve degradation or defect within the engine wiring harness affecting engine management and transmission operation. Given that this condition resulted in a highway stall and temporary inability to restart, I am reporting this for investigation as a potential safety-related defect involving loss of propulsion.

Driving normally. Stopped at a red light when the car started to touch idle and proceeded to shut off. Tried to restart the car and when ignition button was pressed the screen and all electronics shut off and there was smoke coming from the engine bay. Police were called and the car was towed to the nearest gmc dealer. Was called today 2/10/2026 with the update that it was going to require a new motor.

The contact owns a 2022 GMC Yukon. The contact stated that the vehicle was consuming an excessive amount of oil. The vehicle was taken to the dealer, where it was diagnosed, and metal shavings were found in the engine oil. The dealer replaced the camshaft and lifters; however, the failure worsened. The contact stated while driving approximately 65-70 MPH, the vehicle stalled and lost power steering functionality. The contact's husband was able to pull over to the side of the road. There was no warning light illuminated. The vehicle failed to restart and was towed to the residence. The vehicle was then picked up and diagnosed by the dealer. The dealer determined that the engine had seized and needed to be replaced. The contact had opened a case with the manufacturer for buyback assistance due to safety concerns. The vehicle was not repaired. The failure mileage was approximately 46,000.

The engine threw a rod on January 23, 2026. The vehicle stranded me on the side of the road. We called the dealership which they came and towed back to the dealership. No dashboard warnings at all. Oil pressure was good. I heard a low tick to begin with then a slight squeaking noise. After the engine locked it was an abrupt halt with the wheels locking up but didn't come to a complete stop. The noise was very loud after that and that's when I pulled off the highway. The dealership checked it out and did find that the motor needed to be replaced. We just had the SUV in the dealership on October 2025 and they found no need for a new motor, just a change in the oil viscosity.

The contact owns a 2022 GMC Yukon. The contact stated that while the vehicle was parked, there was a dripping sound coming from the vehicle, and the low oil warning light was illuminated. The low oil warning light was illuminated approximately every 1,500 miles after an oil change. After each oil change, the level on the oil dipstick was low. The vehicle was taken to an independent mechanic, where an oil consumption test was performed. The mechanic informed the contact that the vehicle was consuming approximately 25 percent of the engine oil. The vehicle was not repaired, and the contact was referred to a dealer for assistance. The vehicle was not diagnosed or repaired. The contact was informed that an additional oil consumption test was needed. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 87,000.

On 15-Jan-26 (approximately 5 weeks after the vehicle was serviced for the NHTSA #25V274) while doing highway speeds the vehicle suddenly started huffing and loosing propulsion. After the dealership did their initial inspection found that lifters in at least one bank were damaged. The suddenness, the randomness and severity of this unprovoked failure (I wasn’t towing anything or going uphill) combined by the fact that the dealership previously gave this vehicle a clean bill of health makes me have no confidence in the road worthiness of this vehicle.

2022 GMC Yukon AT4 was brought into the dealership for the service recall on the engine. No issues and received the 0W40 "fix". Approximately 4-6 weeks later, I was traveling on the interstate at approx. 75MPH when the truck completely shut down mid-passing with a code stating "conditions for not for shifting" and I was lucky enough to get the truck to the shoulder of the road without being struck by another vehicle as the truck "shifted" to neutral and would not do anything. Once the truck was in park, it shut off and I was unable to get it started again. Received multiple codes (key fob battery needs replacing, battery low, etc.) while stuck on the side of the interstate for several hours until I was able to get it towed (at a charge of $500) to my dealership. It then sat in the parking lot for 3 days for diagnosis pending TAC deciding whether to tear the engine down or replace it. It was determined to meet the recall qualifications and the dealership has ordered a replacement engine and was told they would start at a estimated 4 week repair time but would probably take closer to 6-8 weeks. Dealership has provided a rental at no cost to me but did not refund my towing costs associated with the repair.

I purchased a Yukon Denali 6.2L in March of 2022 brand new from Bob Johnsons in Rochester NY. On [XXX] at 12,577 miles the engine went through a catastrophic failure, while driving, the vehicle began to make very loud noises. The vehicle was taken to Bob Johnsons GMC 4389 West Ridge Road Rochester, NY 14626. The repair notes #3 main bearing thrust portion had come apart. The vehicle was out of service from 4/3/2023 to 4/19/2023 for engine replacement. On [XXX] at 50,244 miles on the vehicle, I was driving down a busy highway during holiday traffic and the vehicle went into neutral and would not start, we immediately turned the flashing lights on, unrolled the windows and began to show distress to ensure we were not hit by passing cars. We made it to safety and called Onstar for assistance, on this occurrence due to the vehicle not starting we were unable to get the vehicle back in to the neutral position to be able to roll the vehicle. The vehicle was towed to Bob Johnsons GMC due to the Thanksgiving holiday, the vehicle was brought in 11/28/2025, and deemed to need another engine replacement. On November 28th I called to file a claim with General Motors and was called back by Stephanie on November 29th and was told they would get back to me if they had any options as now this is the 3rd engine replacement. On December 3rd, a new woman called also named Stephanie and advised me they were still undergoing options, as I requested a Buy Back with Trade Assistance. On December 9th, my final call from General Motors advisor Stephanie, I was told I do not qualify for a buy back because I placed too many miles on the vehicle between engine failures. The vehicle was out of service from 11/26/26-12/29/26 for engine replacement. On [XXX] 2 weeks and 4 days after the vehicle going back into service, the engine failed again, only driving approximately 245 miles. I am currently waiting on the 4th engine replacement with no updates. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6

My vehicle has experienced total engine failure. The first time occurred in 2024. The dealership replaced the engine with a new one. It has now failed for the second time. This time I nearly crashed as the vehicle went from 65mph to 0mph in 5 seconds. There was no warning and my vehicle is serviced regularly by the dealer I bought it from. The dealer has not yet responded with how they will resolve this issue.