GMC Yukon Complaints

6,462 consumer complaints on file.

#11710249January 11, 2026
UNKNOWN OR OTHER
I want to report the dealership, Hill GMC, in Newtown Square PA and the salesman, Vince Pace, that special ordered this vehicle for me in December of 2023 knowing full well that these cars had an engine problem. It was deceitful and cunning. I purchased a GMC 2024 Yukon Denali for $102,000 I am a senior citizen and I was taken full advantage of in this fraudulent sale.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710111January 10, 2026
ENGINE
Engine lifter spring failure followed by bent valve push rod experienced on or about 11/6/2025. Engine repaired/re-built at independent auto mechanic for a total of $6,450. Parts not available but have pictures. Depending on where this incident could have occurred (freeway, long trips, while towing (boat, horses), etc.) safety concerns include being stranded in traffic or remote areas. Engine lost significant power and wouldn't have been able to tow. Engine knock warning light.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710038January 9, 2026
ENGINE
I was driving down the highway at normal speeds under normal conditions and the engine light came on and started flashing. By the time I could find a safe place to pull over I heard the engine knocking. Left my wife, two young kids and myself stuck in the middle of the road with traffic coming. Managed to get it out of the road before going to get my truck and trailer to tow it home. I assume this is due to the L87 recall but mine was built in 01/21 and the recall is said to cover 03/21 and up. We don’t really know what to do at this point being its my wife and kids only way to work and school.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11709635January 8, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2020 GMC Yukon. The contact stated that while driving at an undisclosed speed, the check engine warning light was illuminated. The vehicle was taken to the residence, the contact exited the vehicle and discovered white smoke coming from the exhaust and started to smell coolant and then discovered that the coolant level was low. The contact added coolant, and the check engine warning light was no longer illuminated. The contact’s husband and son, who were knowledgeable about vehicles, had self-diagnosed the vehicle and determined that the head gasket or the lifters might need to be replaced. The contact stated that the failure had occurred on several occasions and the contact consistently added coolant; however, the check engine warning light was illuminated every 300 miles once again. The contact researched and was made aware of an unknown NHTSA Campaign Number; however, the VIN was not included. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that there was an unknown internal issue with the engine that was possibly associated with coolant leaking into the engine. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 52,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11709565January 8, 2026
POWER TRAIN, VEHICLE SPEED CONTROL, SUSPENSION
As of [XXX] , I witnessed a squealing sound coming from the rear end of my 2018 Denali Yukon XL truck. And it's affecting my braking. And it jerked when I changed my gears on my truck . And there are lights on in my dashboard on my truck. The engine light was blinking on and off and the traction control light was blinking on and off also. But the back driver side of the truck was squealing also. Please help me to resolve this situation. In the name of Jesus. Thanks again [XXX] and [XXX] . 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
#11709720January 8, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2022 GMC Yukon. The contact stated that while driving approximately 65 MPH, the vehicle started losing motive power. The check engine and traction sensor warning lights were illuminated. The accelerator pedal was depressed, and there was a popping sound coming from the vehicle however, the vehicle failed to respond as needed. The vehicle was coasted to the side of the road, and then the vehicle was towed to a local dealer. The dealer diagnosed the vehicle and determined that the lifters and engine sensors had failed. The vehicle was not repaired. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The dealer was notified of the recall, and the contact was informed that the dealer was waiting for a response from the manufacturer regarding the recall repair. The dealer later advised that an attempt to rebuild the engine was planned. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 56,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11709435January 7, 2026
POWER TRAIN, ENGINE, FUEL/PROPULSION SYSTEM
On [XXX] driving to Denver the 52,000 mile yukon started making a clicking sound when accelerating on the interstate. Traction control light came on as well as the check engine light. Low power was noticed and we immediately pulled over as it sounded like it was going to blow up. Towed the vehicle 145 miles where we bought it and the shop confirmed the lifters and 5th cylinder are the issue and that the cams could be damaged. Recommend replacing each side. The car is basically new and under the 60K drive train warranty but about 100 days past the 5 year mark. Terrible timing. 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
#11709361January 7, 2026
FUEL/PROPULSION SYSTEM
Filling this vehicle with diesel fuel per the manufacturer's user manual instructions results in a fuel leak centered between the rear wheels from somewhere at the top of the fuel tank. This has occurred during almost all fuel fill-up stops over the last year. The local dealer could not find the problem. A similar issue occurred with the 2021 diesel Yukon which has the same fuel tank as verified by part number. This was quietly remedied under warranty by the manufacturer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11709048January 6, 2026
ENGINE, FUEL/PROPULSION SYSTEM, FORWARD COLLISION AVOIDANCE: WARNINGS
I was driving and a message popped up "Service Traction Control", then another message popped up "Forward Collision System Unavailable". Then the car started making this knocking sound and every time I would try and accelerate there would be a loud sound and almost a pulling stopping it from picking up much speed. I took the car into the dealer/repair shop and they said it was an issue with the lifters that had to be replaced and potentially an issue with the cam. They said this repair would cost upwards of $6,000 and I have never had this issue with the car before. This came out of nowhere and the car had not been showing any signs of this occurring before. This is a 2021 GMC Yukon and I drive my Wife and three sons in that car daily.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708869January 5, 2026
ENGINE AND ENGINE COOLING
See attached document for complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708634January 4, 2026
ENGINE
On Christmas Day while driving on the highway, I noticed a ticking sound coming from the engine. Our 21 Yukon Denali just hit 85,000 miles. I first noticed the traction control light was became disabled and then the check engine light started flashing. The sound escalates when you step on the gas. It appears that the lifters and cams are damaged on the vehicle and had to be towed to a dealership were it currently waits to avoid further damage. I was advised by the dealership that this particular vehicle is not part of the engine, recall notice, but heard that they might be expanding vin numbers to the recall as more incidents occur. They did confirm that the lifters and Cam’s are the issue.The vehicle has had a great maintenance record and was just at the same dealership five weeks earlier for oil change.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708547January 3, 2026
ELECTRICAL SYSTEM
My vehicle experienced a sudden and complete loss of OnStar and telematics functionality during or immediately following a routing/software update. I had taken my vehicle in for my engine recall and noted another software update was required and specifically was told by multiple service members over the phone that the onstar services/telematics module was impacted and this update should resolve it. After some initial research it appears this is related to N212331730, which impacts OnStar and telematics services. I brought the vehicle to an authorized GMC dealer for the recall. After inspection, the dealer informed me that the telematics control module has failed and must be replaced. This failure resulted in the loss of all OnStar safety-related services, including emergency response and vehicle communication features. The failure appears directly related to the recall condition or software update process, yet I am being told the module replacement is not covered. This creates a safety concern because emergency communication systems required for crash response and roadside assistance are nonfunctional. I am concerned that the recall remedy may be causing or accelerating telematics module failures and that affected vehicles may be left without critical safety systems unless owners pay out of pocket.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708489January 3, 2026
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: WARNINGS, STEERING
November 12, 2025 - Turned on car and immediately noticed multiple system failure notices and very slow ability to brake. Immediately took to dealership - said battery needed to be re-charged. December 9, 2025 - turned on car and once again immediately noticed multiple system failures and very slow ability to brake. Failures were "Brake System Failure, 43 MPH Top Speed, Forward Collision System Unavailable, Service Brake Pad Monitor, Service ESC, Service Traction Control, Service Sterring Column Lock" Immediately took to dealership. Over the last 25 days in service all the dealership has told me is that their master technicians have looked it over and do not know the root cause. They are waiting for a new technician from GM. They also have another Yukon at the dealership with the same safety symptoms. No issues with the car prior to these two instances of failures. Car should not be driven.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708458January 2, 2026
ENGINE, POWER TRAIN
There was an engine recall on the vehicle that was inspected and passed. My wife noticed the vehicle shaking while she was driving and the engine mounts ended up being broken. They replaced the engine mounts and they had it up on the lift when they reported that engine failed. They replaced the motor and gave the vehicle back to us. About 2 weeks later my wife noticed a grinding. She took it in and they said the differential needed to be flushed. That would be at our cost. Then they did that and it did not fix the issue. So they determined it was the rear differential that needed to be replaced. We got the car back after another 2 weeks and it was fine for about 2 weeks. My wife noticed another grinding and we turned it in before the warranty expired and now they have to replace the rear struts. All in all over the last 6 months the car has been in the shop for at least 2 months getting repairs because of major catastrophic failures in their components.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708393January 2, 2026
STRUCTURE:BODY
I am reporting a paint failure issue on my 2022 GMC Yukon involving significant paint peeling above the windshield area.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707815December 30, 2025
ENGINE
On [XXX], while idling in my driveway the engine abruptly stopped with a loud clunk and refused to turn over when I attempted to restart it. The vehicle was towed to Bergstrom GMC in Appleton WI. Upon inspection it was determined that a connecting rod and crankshaft bearing had failed requiring replacement of the engine. The vehicle has a 6.2-litre V-8 engine with 106,000 miles on it. The vehicle is currently still at the dealership waiting for the engine replacement at an estimated cost of $18,000. 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
#11707778December 30, 2025
ENGINE
My 2025 GMC Yukon AT4 Ultimate experienced reduced acceleration, and I immediately took it to the dealer. The dealer concluded it was a thrust bearing failure, and GM has authorized a complete engine replacement. I wanted to report this issue, as I believe it represents a potential safety concern. I would like to clarify whether GM has identified the root cause of this problem and redesigned the replacement engine to prevent recurrence. Additionally, I want to be able to track the replacement engine through its serial number for documentation purposes. I am submitting this report to formally document my concern. While GM has acknowledged the thrust bearing issue through a memo #25-NA-307, they have not confirmed whether the redesigned replacement engine will prevent this failure from happening again. Please advise. Sincerely, [XXX] 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
#11707749December 30, 2025
LANE DEPARTURE: BLIND SPOT DETECTION, LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST
The OnStar module in my 2022 Yukon Denali has failed impacting the speed limit detection system, compass, blind spot detection system, lane change assistance, navigation and wireless service. It just suddenly stopped working without any notice.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707693December 30, 2025
ENGINE
Took my Yukon in for L87 engine recall. Advisor informed me my engine failed. No symptoms, sounds or messages appeared.’
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707478December 29, 2025
SERVICE BRAKES
This has been going on for a while now, but it’s getting worse overtime. If I push on my brakes more than twice the brake pedal locks up and I have to push extremely hard to get my vehicle stopped.. luckily I have never been going fast and had to worry about this. This is normally when I am pulling into a parking spot or I am backing up that I have to tap on my brakes a few times. A couple of times I have bumped the pole in front of my parking spot due to not having brakes. I just put in a general date as to when they started to get worse.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0

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