2022 GMC Yukon transmission problems

Filed Sep 3, 2026 · Transmission · AZ

Sunday XXX, we were riding in our 2022 Yukon Denali with my wife driving on [XXX] at the speed limit of 75 mph when the vehicle stumbled for a moment then returned to normal operation... a few seconds later the engine just died. No drive information center warning or check engine light, no funny noises or catastrophic banging. It just quit running. There was traffic on the highway but with my wife's quick reaction we were able to get off the highway to the breakdown apron without crashing. We called AAA and had the vehicle towed to the GMC dealer (Oxendale GMC) in Flagstaff. We were at this point about 200 miles from home in [XXX] City. On Wednesday, XXX, the service writer called us and informed us the engine was seized and would have to be replaced. We were aware of the NTHSA recall and had taken our vehicle in on XXX to have the recall (N252494000) and at that time we passed the pico test and the oil was upgraded to the higher viscosity and oil fill cap changed. We were sent on our way with no advisory the recall may not have fixed the underlying problem. GM has agreed to replace the engine. We filed a complaint with GM (GM case #XXX) Since this happened, we have been looking into this situation and discovered ours is not an isolated case. A lawyer told us that here have been more than half a million vehicles recalled and an unknown number of catastrophic engine failures just like our, but NTHSA has received less than 1000 complaints. I wanted to make sure that my experience was conveyed to you. An additional note - we special ordered this vehicle new and began to have recurring electrical problems with it shortly after we took delivery. GM offered us a buy-back or a 100,000-mile warranty to keep the vehicle. Since then have had the vehicle serviced at regular recommended intervals by Brdley Chevrolet in [XXX]. We have repair invoices for every service and Recall repair done. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 29, 2026 · Engine, Transmission · AR

Had a check engine light come on a couple months ago and vehicle went into Reduced Accelaration safety mode. Come to find out, it was a faulty Valve Body. I came out of pocket for $2,800 to get it replaced because GMC said the Valve Body/Special Coverage was not assigned to this VIN. Even though it was a 2022 with 60,000 miles on it fitting every criteria of the exact recall (mind-blowing). Now fast forward to now, the same check engine light and reduced acceleration fault is active associated with a Transmission Control Module Fault. This truck is entirely too new and taken care of to be dealing with these types of major issues. It’s been a severe inconvenience for my wife as it’s her daily driver. To make matters worse, the lack of support and assistance from GMC has made us go from very loyal customers and supporters, to now seeing how quickly we can get away from this disaster of a vehicle and Customer Service.

Filed Aug 22, 2026 · Engine, Transmission · MN

Vehicle lost all power and shutdown coming off the highway. This all happened even after the heavier ow-40 oil was added from the initial engine inspection. Been waiting almost 2 months for a total engine replacement

Filed Jul 16, 2026 · Transmission · 39,000 miles · MS

The contact owns a 2022 GMC Yukon. The contact stated that there was an abnormal moaning and grinding sound coming from the vehicle. The contact became aware of the uneven wear on the tires. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed and determined that the differential needed to be replaced. The vehicle was not repaired. The vehicle previously had an alignment and fluid flush performed. The contact stated that the failure was related to TSB: 21-NA-028 – (Rear Differential Moan/Chatter). The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 39,000.

Filed Jun 22, 2026 · Electrical, Transmission · TX

with no warning ,the GMC 6.2L engine failed on my family trip to Colorado. The engine seized at HWY speeds, stopped running, failed to restart and had to be towed to local dealer. This issue is a known GMC defect with numerous reports and a safety recall issue. I was fortunate to be able to move offer in hwy traffic and get to the shoulder where my situation took 8 hours travel time to continue my family trip.

Filed Jun 22, 2026 · Engine, Transmission · TX

With no warning, my engine 6.2 L stopped running at highway speeds and failed to restart. The power train completely failed for a second time after having a previous engine replaced for the same failure in 2024. I had the car inspected per the recall along with changes in the oil viscosity as recommended along with service inspection. The car left me stranded again on rural highway for over 5 hours in temps that exceeded 98 degrees. The car would not start and went into a power save shutdown and had to be towed to the dealer. I was fortunate to have avoided any traffic on the highway enough to get the car off the road. This is not safe to drive on the highway and GMC has known defect and safety concern with this issue.

Filed Jun 2, 2026 · Transmission · TX

During normal driving conditions the vehicle had set code P18A1 in the ECM. Code set due to an internal short in one of the solenoids in the valve body assembly. This caused the vehicle to display "Limp Mode" and lose reverse gear and propulsion over 45 mph. The vehicle was parked and towed to the dealership for evaluation. Upon inspection by a certified dealer technician, it was found that a solenoid had failed and required replacing. As part of the entire valve body, the solenoid is not a serviceable part. The dealership had to replaced the entire valve body assembly per repair guidelines. Per the GM and the federal safety agency websites, my 2022 GMC Yukon XLT with a 10-speed transmission is not included in the recalls listed below even though the symptoms are identical. General Motors publicly acknowledged the 10‑speed transmission valve body and solenoid defects, including internal electrical and hydraulic failures, through Safety Recalls, Special Coverage programs, and Technical Service Bulletins applicable to 2020– 2022 full‑size trucks and SUVs, including the GMC Yukon. My vehicle’s model year, transmission type, failure code (P18A1), and repair align with those documented GM conditions and should be included in this recall.

Filed Apr 28, 2026 · Electrical, Engine · FL

We were driving on 95S when the Yukon Denali automatically shifted itself from D to N. On the dash it had a warning message to press start again. When my husband did that we could smell a smoke smell. Meanwhile, we are in the middle lane of the highway while trying to safely get off the middle of the interstate without being rear ended by the semi that was behind us. We finally made it to the side of the interstate where my husband was able to put the Yukon in park. He was never able to get the vehicle back in Drive. The car would never click back over to start up again. We had to have the vehicle towed to the nearest GMC dealership where it has now been for almost 3 weeks with no timeline for a date of a new engine. I was told it needed a new engine and radiator. Said the alternator was trying to catch fire when he was trying to start the vehicle. This is the SECOND time the Yukon has been in the dealership in 4 months for this recall issue. This time it is 2hrs away from my home.

Filed Apr 6, 2026 · Transmission · CO

I took this vehicle in for the recall that GM had indicated. The vehicle was taken to a GMC dealer and “passed” the PICO test and the oil was changed out as recommended. Two weeks ago, the engine completely seized while driving in the interstate and was towed back to the dealership. I am now waiting on engine replacement after passing their solution. The car has roughly 30,000 miles on it.

Filed Apr 3, 2026 · Engine, Fuel system · TX

Monday, March 30, 2026 my GMC Yukon Denali had already had the recall pico test and was told it passed on September 2025 six months later March 30, 2026, driving to pick up my wife from work a tapping sound coming from the engine started and about a mile down the road from when I first heard the tapping the engine started juttering and the noise got louder like a clunking sound. I had to pull off the road into a gas station and use the OnStar to get assistance the vehicle was towed to a local San Antonio dealership Cavender Buick West they gave me a loaner vehicle the next morning and the day after that Wednesday I was informed that yes they confirmed the engine will have to get replaced so now I am waiting for that. I was told by the dealer it could take up to two months for them to receive a replacement engine and once they receive the engine, it can take roughly for maybe five days for turnaround. I inquired whether the replacement engine isn’t upgraded engine or is it the same engine that has all the problems I haven’t received an answer for that yet. I am awaiting that answer from my service advisor. He said he is looking into that.