GMC Yukon Complaints (2021)

345 consumer complaints on file.

#11705091December 15, 2025
ENGINE
Freedom, tire and automotive Inc. advised my 6.2LV8 engine has failed due to metal debris found in the new oil, indicating a mechanical failure of an internal engine component. I called GMC and they referred me to you.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704618December 11, 2025
ENGINE, POWER TRAIN
At the time an oil change is needed, there is a warning light that says "low oil pressure and low oil." There also has been a "slipping" of the engine at around 60mph. GMC dealer states it is a torque converter. I am worried that the engine will fail or stall while driving The fuel pump control module has been replaced. Motor is not covered under the current motor recall and taking vehicle to transmission shop to have it checked as well
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704122December 9, 2025
POWER TRAIN
Clicking/rubbing noise when turning slowly. Rear differential issue diagnosed by dealer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703867December 8, 2025
ENGINE
Engine failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701140November 24, 2025
ENGINE, FUEL/PROPULSION SYSTEM
I got 3 messages on the dash going off simultaneously 1. Service Traction Control System 2. Forward Collision System unavailable 3. Service ESC I could feel the truck bogging and shaking a little at this point Then soon after the check engine light was flashing and it was noticeably misfiring and rough idling. I pulled some codes at Oreillys and got back 1. P0300 misfire 2. P050D cold start rough idle
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699629November 16, 2025
ENGINE, FUEL/PROPULSION SYSTEM
On November 14,2025 my engine failed on the highway going 80 mph to 0 mph in the passing lane. Almost caused a major accident on US23. I’ve asked my dealership Bowman Chevrolet repeatedly to inspect my engine for the recall and have been denied every time. Most recent was October when I had my oil changed and I was told it wasn’t my turn and the recall for my vehicle was pending. I had my vehicle flatbed towed to the dealership where it sits dead in their parking lot. Thank God we didn’t die on the freeway that night. It was a horrible experience.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11699201November 13, 2025
ENGINE, FORWARD COLLISION AVOIDANCE: WARNINGS
While driving vehicle on 11/08/2025, vehicle made a popping noise and loss power. We were out of town and had to pay out of pocket to have vehicle towed to a dealership and hour away from our home. Dealership diagnosed issue with engine failure due to lifter fell and caused damage to cam shaft and bore. I will be without a vehicle for an additional 2 to 4 weeks waiting on a back ordered engine from GM, and continue making payments on vehicle as well. This issue seems to be an ongoing problem that GM is ignoring…….GM should compensate towing, car rental, and repair/ replacement charges due to failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698109November 7, 2025
ENGINE, ELECTRICAL SYSTEM, STEERING
I’m not happy with just a change in oil viscosity because the car has already been on the road for 70000 miles before we were aware of the recall on the engine. Changing the oil viscosity doesn’t help when there is a underlying engine problem it should be replaced not just change your oil and send you on your way because now I’m always wondering and worried if the engine will still fail when my kids and wife are in the car. Furthermore I just had it inspected and the oil changed to new viscosity a week ago and the oil level is already half way on the dipstick so I’m taking back to the dealership to express my concern. If I would have known this was going to be an issue with this suv I would have purchased something else. I’d just like the engine replaced so that I don’t have to worry every time I pull out of the driveway with my family. My power steering assist still whines and there is no open recall on it. I think GMC should be responsible for replacing engines and power steering assembly and power steering motors on 2021 GMC YUKON DENALIS because of the wear and tear they have endured before the recall was taken care of by adding a different viscosity oil because the damage has already been done.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698010November 6, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR:INTEGRATED STARTER(OTHER THAN PROPULSION)
The contact owns a 2021 GMC Yukon. The contact stated while driving at an undisclosed speed, the engine seized. The brake pad sensor warning light illuminated. In addition, the contact stated that the vehicle continued to roll forward. The contact was able to drive the vehicle to the shoulder of the road. The contact stated while attempting to restart the vehicle, the vehicle failed to start. The contact stated that a nearby driver assisted by providing a jumpstart. The vehicle was driven to the residence. The vehicle was then taken to an independent mechanic where it was diagnosed with alternator failure. The contact stated that the vehicle was previously taken to two independent mechanics, and the vehicle was diagnosed with alternator failure. The dealer was made aware of the failure. The contact was informed that the failure was a known failure with similar vehicles. The manufacturer was made aware of the failure with the alternator and the brake pad sensor. The contact was informed that the repairs were not covered under warranty or recall. The failure mileage was approximately 95,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697734November 5, 2025
ELECTRICAL SYSTEM, POWER TRAIN
Electronics- module went out @40,000 brand new car Drive train teal differential went out
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697692November 5, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2021 GMC Yukon. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to the dealer, where it was diagnosed and determined that the fuel pump module had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and referred the contact to the NHTSA Hotline for assistance. The approximate failure mileage was 30,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696514October 30, 2025
ENGINE AND ENGINE COOLING
See attached document for complaint. On [XXX], I purchased a certified pre-owned 2021 GMC Yukon Denali for $85,481.76. Since then, I've had multiple service appointments prompted by dashboard alerts, OnStar reports, and noticeable engine hesitation and knocking noises while driving. The attached invoices reflect services I paid for based on dealership recommendations to address these issues. Unfortunately, this experience has been convoluted and stressful. I've received conflicting information from GM representatives at 1-866-467-9700 and various dealerships. In fact, several dealerships have expressed strong concerns about the qualifications of the hotline staff to provide accurate guidance regarding the recall. Despite the time, energy, and financial resources I've invested, I remain a loyal GM customer and proud owner of a 2017 Chevrolet Colorado, 2022 Cadillac XT6, 2022 Buick Encore GX, and the affected Yukon Denali. Considering the circumstances and the unresolved issues surrounding this recall, I respectfully request financial compensation close to the original bill of sale amount of $85,481.76. I believe this would be a fair and appropriate gesture given the extent of the stress, inconvenience and cost I've incurred. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696477October 29, 2025
ENGINE
My GMC Yukon with 6.2 is using 1 quart of oil every 1000 miles. An oil consumption test was performed and documented with the dealer. In addition there is now a very rough idle while at a stop. The date on the engine build is just months ahead of the current recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11695265October 23, 2025
ENGINE, ELECTRICAL SYSTEM, SEATS
I purchased the vehicle in July 2024. I drove the car for 10 days, and when I was driving 65 mph, the check engine light blinked three times and then went off. After that, the engine made a sound that was not there before. I took the vehicle to the dealership and they had the car for many weeks, concluding that the lifters broke and the engine needed to be replaced. The dealership said they replaced the engine and the car was returned to me towards the end of August. Since then, the AC has been worked on three different times in the past year and on the third attempt, there is finally cool air coming out of the driver's air vents. The driver's seat AC blowers malfunctioned and were repaired. The dealership put the original engine's belt back on and then broke. The electric system inside glitches from time to time when you first start the car. The front windshield wipers will randomly swipe while driving. After getting a regular oil change, the car sprang an oil leak due to the cap not being tight enough. Over the past 5 months, there has been a random popping sound in the front driver's side area when coming to a stop that two dealerships can not figure out. The belt in the engine still makes a high-pitched sound when first starting up and lasts for about 1 minute. While in park or sitting at a light, the engine will idle up and down from time to time. The vehicle has been worked on by the dealership where it was purchased and also a GMC dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11694074October 17, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2021 GMC Yukon. The contact stated while driving at an undisclosed speed, there was an unusual rumbling sound coming from the engine. In addition, the contact noticed that whenever the accelerator pedal was depressed, the vehicle failed to accelerate as intended. The contact stated that the failure had been ongoing for approximately one year or more. In addition, the contact stated that the failure was persistent and had occurred approximately ten times. There were no warning lights illuminated. The vehicle was not taken to the dealer nor an independent mechanic. The contact later received notification: NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, parts for the recall repair were not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11693229October 14, 2025
ENGINE
GMC has not responded for the recall of the engine. My vehicle is running bad. I need the vehicle to be service as soon as possible. My saftey depends on GMC keeping there promise to repair the recall engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11692647October 11, 2025
POWER TRAIN
While my wife was driving to pickup my son from school, the vehicle was stopped at a stoplight and the engine turned off approximately 1 mile after departing the house. After getting the vehicle towed to the dealership because it wouldn’t start, it was determined by the dealership that the engine was seized. The vehicle has 60,500 miles on it and is driven by a suburban woman and has always had all maintenance done at the dealership. The vehicle is parked in our driveway and there are no signs of oil leaks or anything else that would indicate a potential engine failure. This VIN was not recalled with the larger GMC 6.2L engine failure recall, however other 2021 model years were recalled. Recommend immediate expansion of recall due to the unforeseen engine failure while driving with no previous warning lights (oil or check engine) or other indications prior to seizing. This experience indicates that the initial recall was not sufficient enough to locate and identify all of the 6.2L engines affected by the poor quality control issues at GMC.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11692107October 8, 2025
ENGINE
I looked up recall information on NHTSA.GOV site and found my car has a recall for engine problems. My GMC app says there are no recalls related to my vehicle and I have never received a communication from GMC stating a recall has occurred.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11691222October 3, 2025
AIR BAGS, SEAT BELTS
“Service safety restraint” light comes on and the dealership cannot pin point exactly what the issue is without taking the entire seat and air bag out. It’s come on 3 times. First time was linked to the overhead console needing replaced. Months later the light came on again and a seat harness connection was bad. It was replaced and light was off. 8 months later the light is back on again and they replaced the connection again and the light is off for now. This is a safety issue and should be a recall!
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690931October 2, 2025
FUEL/PROPULSION SYSTEM
Vehicle would not start. Vehicle was towed to GMC dealership for inspection. Vehicle diagnosed with "Fuel Pump Driver Control Module" issue and needed to be replaced. This was a known issue for the 2021 GMC Yukon: GMC Service Bulletin: #24-NA-139 (Release Date August 2024) Emission Recall: N212332040 (Release Date September 2021) Emission Recall: N252516900 (Release Date September 2025) However, this VIN was not covered under the recalls and payment was required out of pocket. Recall(s) need to be expanded to include additional 2021 GMC Yukon VINs - including this one.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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