2021 GMC YUKON Complaints

The contact owns a 2021 GMC Yukon. The contact stated that while driving approximately 55 MPH, the vehicle decelerated independently and stalled. The vehicle failed to restart and was later towed to the local dealer who diagnosed that the fuel pump power control module was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was provided. The contact was informed that the VIN was not included in NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 50,500.

1. Fuel pump control mod 2. my car gave me only a second warning before it shut down entirely. I was somehow able to get to the side of the road. no car going to the car 3. It was replaced at an independent service station. They called GMC dealership for assistance on diagnosis. Dealership said this is happening 4. No warning lights at all. No car trouble at all. Car is fully up to date on maintenance This is only a 2021 car with such low mileage you expect to a car to run properly if well maintained. I called the GMC dealership and spoke to the Service manager and he just said that these things happen. Cars are complicated these days. I found that unacceptable since I could have been killed if someone was directly behind me and I could not get to safety. I spent $416 to get towed from a NJ towing company since AAA is not allowed to tow me on the Garden State parkway. . I spent $165 to get to Philadelphia to catch my flight since I did not have a car. I hope that this major shutdown of this car can be addressed and the answer is not just that cars are complicated these days. Thank you.

The contact owns a 2021 GMC Yukon. The contact stated while driving at various speeds, the message “Safety Restraint Unavailable” was displayed. The vehicle was taken to a dealer where it was diagnosed that the battery voltage was low. The battery was replaced; however, the failure reoccurred. The vehicle was taken to the dealer on two other occasions, where the system was reset, but the failure reoccurred approximately two months later. The manufacturer was notified of the failure. The failure mileage was approximately 16,000.

The contact owns a 2021 GMC Yukon. The contact stated that the vehicle was difficult to start. The contact stated that while his wife was driving 50 MPH the following day, the message "Press Start Again" was displayed. The contact stated that the vehicle then stalled while the driver was pulling to the side of the roadway. The contact's wife was able to pull to the side of the roadway and restarted the vehicle. The check engine warning light was illuminated. The contact's wife was able to drive back to the residence. The contact stated that while scanning the vehicle with a vehicle scanner, the diagnostic trouble code: P129F was retrieved. The dealer was contacted and was provided the diagnostic trouble code: P129F. The dealer confirmed that the failure was related to NHTSA Campaign Number: 21V739000 (Fuel System, Gasoline); however, the VIN was not included. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 33,929.

On [XXX] I brought my vehicle to Rivard Buick GMC with a squeaking noise that was check and attempted to be repair four times at the same location. They provided a quote for $2,309.10 stating it was the Master Cylinder. Rick the Services director said it was not cover under warranty and it need it to be cover by me, at that point I explain to him the vehicle has been in and out of his services department for the same issue since it had 20,000 miles. 1st time-They replaced the front brake pad stating GM had a defect on them (Noise went away for a few thousand miles) 2nd time- They apply conditioner to the brake and lubricant so they say (noise went away for a few thousand miles) 3rd time- They said it was not the front brakes anymore making the noise. They said warranty did not cover rear brakes due to GM not flagging it as defected pad. I complained the noise was coming from the front of the vehicle but they insisted it was the rear so I paid $500 plus to get the rear brakes at 60% life left on them. At the time of picking up the vehicle after repair completed the noise came back within a few miles from the dealer. I returned to the dealer and spoke with the Services Manager Troy, he apologized for the inconvenience and said they will take care the front brake at no cost to me, however they submitted a claim to GM to get the work done and kept my money when they misdiagnosed the issue. 4th time- Noise comes back at this point the warranty it's expired and they tell me it's the master cylinder the actual issue. When I talked to Rick, he said that GM was willing to pay for half of the work and the other half it's my responsibility. On [XXX], my wife and three kids almost hit a wall while trying to stop and the braked did not work. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

“Service steering column” notice appears on dash board. Steering wheel is locked and car won’t start leaving us stranded. Dealer could not diagnose problem. Car started at dealership. Took it home. One month later happened again.

The contact owns a 2021 GMC Yukon. The contact stated while driving approximately 60 MPH and depressing the accelerator pedal, the vehicle started shaking and shuddering. There was an ESC service warning light illuminated. The vehicle was taken to a local dealer where it was diagnosed that the right lifter and the camshaft were damaged and needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.

On 4-5 occasions since purchasing a new 2021 GMC Yukon Denali the automatic breaking function has engaged for no reason, with no obstruction in the roadway. It has occurred at low speed (after disengaging break and starting to drive). Obviously, this is a major safety issue.

There are apparently a couple of faults affecting the SRS and leading to a periodic airbag light and "Service SRS" warning. GM has issued/revised a few Service Bulletins related to this warning. Some are related to software, some are related to overhead wiring, some are related to the clock spring in the steering wheel, and some are related to the driver's side airbag module. My understanding is that when the SRS warning appears, all airbags are disabled and GM says we drive our vehicles at our own risk. To my knowledge this has affected several models of approximately 2021-2023 GMC (Yukon and Sierra) and Chevrolet (Tahoe, Suburban, Silverado) SUVs and trucks.

The contact owns a 2021 GMC Yukon XL. The contact stated that while driving at various speeds, the check engine warning light illuminated, and the Diesel Exhaust Fluid (DEF) message was displayed. During the failure the vehicle decelerated. The vehicle was taken to the local dealer who replaced the NOX sensor, but the failure persisted. The vehicle was taken back to the local dealer who was unable to determine the cause of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 16,448.