*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Power train
The transmission failed on August 8, 2026, while I was driving on a highway. I moved safely to the shoulder, but the vehicle became inoperable and required towing. The loss of propulsion in active highway traffic created a potentially hazardous situation. My GMC Bommarito Buick GMC dealership advised that GM cannot currently supply the required replacement transmission. The dealer has no estimated delivery date and does not know when GM can supply the unit. The vehicle has been out of service for over four weeks, with no definite repair or return-to-service date. I am concerned that the inability to provide a replacement transmission may indicate unusually high demand or a broader issue. I…
Aug 8, 2026Structure › Body
Passenger door handle caused laceration in my sons hand. Peeling interior paint or chrome created a cut on hand. Causing it to bleed and get first aid. Noticed all door handles were in same condition. Very un safe and can repeat incidents like this to other in household.
Sep 12, 2026Unknown or other
The vehicle has an unpredictable and random tendency to hesitate when the gas is pressed. This has been happening at some level since the vehicle was new. The dealership service department was never able to get the vehicle to do what I was concerned about, so they never helped resolve the issue. Now that it is out of warranty, the issue is getting worse. It is to the point that I believe it is unsafe for anyone but me to drive it. I have to make sure that when I turn onto a new road, that there is absolutely noone coming because I cannot depend on my vehicle to accelerate quickly enough, even at a normal rate. It may lag and take its time speeding up, or it may accelerate normally with no…
Jun 15, 2026Engine
My family drove from [XXX] to [XXX]. Upon arrival check engine light came on, we proceeded to a local shop, by the time we arrive check engine light was flashing and engine was knocking and was clearly malfunctioning. Shop owner recommended we transport the vehicle back home as service shops in the area were experiencing high volume and parts shortages. We had vehicle towed to a local shop in [XXX]. The engine is giving diagnostic codes P0300, P050D, [XXX] with internal knocking and tapping. Vehicle has been kept current on all oil changes and has no external leaks. GMC wants at least $12,000 to replace the engine. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5…
Jun 22, 2026Power train
Without any indications of a problem our transmission began making a loud whining noise. The evening before it was fine and the next morning on startup the noise just began. The Vehicle only has 45,000 miles on it and the transmission had been serviced at the recommend manufacturer interval. Took it immediately to my auto repair shop where it was diagnosed as a transmission failure (they has seen this before) and told not to drive until replaced due to safety issues related to the failure. Unfortunately, due to a shortage of these needed 10 speed transmission I waited over a month for the vehicle to be repaired. The shop contacted GM to inquire about any warranty help but was told there was…
May 19, 2026Engine
The engine light came on and started making noise. We drove it to a mechanic shop, and they said the code stated camshaft and other component issues, but the engine ended up failing completely and was rebuilt. We initially checked for recalls and our VIN did not show any; however, we recently became aware that our engine (6.2L) might be part of the ongoing current problems associated with a recall. We are hoping that GMC will cover any remaining repairs and/or reimburse us for the thousands it has cost us.
Aug 15, 2025Service brakes
Multiple repairs on brakes and tires are mismatched old since purchased in 2023 tires deflate gas cap missing
Dec 31, 1969Engine
Engine started with a rough idle, I attributed this to mileage. Check engine light did not come on until days before scheduling service. Per diagnostic from Chevrolet service department: Lifter roller damaged and camshaft damaged on lobe. need to replace camshaft and lifters. this has been diagnosed by Chevrolet dealer mechanics at Ferman Chevrolet North Tampa, in Tampa Florida. Check Engine Light came on 4 days before I took it for diagnostic. Chevrolet and GMC have issued a recall on 2021+ but this remains outside that recall. I'm quoted for an $11,343 repair on a vehicle that has gotten regular synthetic oil changes at the dealership since I bought it with approx 80k miles on it. Metal…
Apr 22, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.