GMC Yukon Complaints

6,462 consumer complaints on file.

#11760969August 31, 2026
POWER TRAIN, ENGINE, ELECTRICAL SYSTEM
I have a 2023 GMC Yukon that has been to the dealership 3 times in a weeks time, and as of today, 8/31/26 will be the fouth time. On 2 occasions, the SUV has entered Limp Mode while driving. I had the SUV towed for the first limp mode, and the dealer claimed it needed recalibration modules. I picked up the car and drove home eight miles, and the check engine light came on. I returned the next day for readings and TCM P0700, P1789, U0101, U220F. The dealer's solution was to recalibrate the gateway module this time. I drove the car about 20-ish miles, and at highway speeds on the freeway, I got limp mode again. Off to the dealership, having the SUV towed again. The dealership has claimed the electrionic car codes clear themselves and because of that they can't re-create the codes to find a solution. I am scared to drive my SUV, I do not feel safe in it let alone my children.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760762August 30, 2026
ENGINE, ELECTRICAL SYSTEM, POWER TRAIN
Issues with the google voice, transmission issues, engine failure to start or restart. Reported same year vehicle was bought. Repeatedly. Dealership even with video evidence stated could not repeat issue and nothing wrong. My car then starts rattling in the engine and they do a full replacement had it for over three months. Now it’s leaking fluid and smoking. They try to send the consumer away and delay delay until the warranty is over. Unethical practices. They knew there was an issue with my engine as it was on the recall list but kept denying any issues until complete failure. Now less than 20 days after that repair the car is leaking and smoking.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760777August 30, 2026
ENGINE
Was taken in for recall at 74,000 they put on a new oil fill cap, did oil change and had catastrophic engine failure at 77,000 miles. Engine replaced by dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760783August 30, 2026
ENGINE
L87 engine already replaced under recall. Failed with same issue in the middle of the road after making heavy squeaking noise.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760797August 30, 2026
ENGINE
The engine issue was caused by a misfire in cylinder #5, which resulted in white smoke coming from the vehicle’s exhaust. While driving on the highway, the vehicle lost power and would not accelerate properly, creating a serious safety hazard due to the inability to maintain speed and safely respond to traffic conditions.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760798August 30, 2026
ENGINE
The engine issue was caused by a misfire in cylinder #5, which resulted in white smoke coming from the vehicle’s exhaust. While driving on the highway, the vehicle lost power and would not accelerate properly, creating a serious safety hazard due to the inability to maintain speed and safely respond to traffic conditions.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760799August 30, 2026
ENGINE
The engine issue was caused by a misfire in cylinder #5, which resulted in white smoke coming from the vehicle’s exhaust. While driving on the highway, the vehicle lost power and would not accelerate properly, creating a serious safety hazard due to the inability to maintain speed and safely respond to traffic conditions.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760804August 30, 2026
ENGINE
Recall notice received, went to dealer to have inspected and was told it passed the recall inspection. Oil changed from 0w20 to 0w40. Motor locked up less than 3000 miles later. My wife was 2 hours from home on the interstate on a Saturday night. Was forced to the left shoulder of the road pinned between concrete dividers and the fast lane. Had to wait 2 hours for a tow truck, $500 later the Yukon was delivered back to our driveway. Mind you, the electronic transmission can’t be shifted so it was dragged on and off a rollback in park 4 times. Dealer had it towed to their shop where they discovered the blown motor. 2 months later the replacement motor was installed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760544August 29, 2026
ENGINE
My 2024 GMC Yukon Denali equipped with the 6.2L L87 V8 experienced an engine failure on July 4, 2026. Prior to the failure, there was no visible damage, warning, or other evidence that the engine was about to fail. I drove the vehicle to purchase fireworks and shut the vehicle off normally when I arrived. When I returned to the vehicle after shopping, the engine problem became apparent. There had been no noticeable indication of an engine failure before I turned the vehicle off. The vehicle was subsequently taken to a GM dealership, where the engine failure was confirmed and ultimately required replacement of the 6.2L L87 engine. The vehicle remained out of service from July 4, 2026, until it was returned to me on August 21, 2026. The original failed engine was in the possession of the servicing GM dealership I purchased the car from. Not even 8 months later of purchase the vehicle needed a 3rd engine (original, recalled engine, warranty engine). The lack of warning before the failure is a significant safety concern to me. The vehicle had been operating immediately before I parked it, and there were no apparent symptoms that would have alerted me that a major engine failure was imminent. Had the failure occurred while the vehicle was traveling at highway speed or in traffic, the sudden loss of engine operation could have created a dangerous situation. The failure was confirmed by the GM dealership and resulted in replacement of the L87 6.2L V8 engine. I am submitting this complaint to document the failure and because of continuing concerns regarding the L87 6.2L V8 and the effectiveness and long-term reliability of the recall remedy. I am still currently waiting for the repair work documentation for the new (assuming it was new) motor. I have attached attempts to talk to GM, app incidents, repair work being completed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760568August 29, 2026
ENGINE, POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760591August 29, 2026
ENGINE
The engine failed at 5383 miles while driving on remote highway in Nebraska.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760663August 29, 2026
ENGINE
Vehicle has 43k miles on it and a has a failed oil pump, already switched to the heavier oil and still have engine issue
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760669August 29, 2026
POWER TRAIN
My vehicle previously experienced engine problems severe enough that the engine was replaced. Despite the engine replacement, the vehicle is continuing to experience an engine misfire, and the check-engine light has been flashing. A flashing check-engine light and active misfire are a serious safety concern because the vehicle may experience rough running, reduced power, hesitation, or potential loss of power while driving. The fact that the misfire continues after an engine replacement raises concerns that the underlying problem was not resolved or that another component or system is malfunctioning. The exact cause of the current misfire is UNKNOWN at this time. The vehicle and/or affected components are available for inspection upon request.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760671August 29, 2026
ENGINE
I’m currently on my third motor as a result of the L87 engine loss. When I bought the vehicle, I was not aware that the engine had already been replaced however, due to hearing a tick, I brought my vehicle to the dealership for the recall and was told that this is not the original engine, but they had the paperwork for this engine as well. Nonetheless, the engine “passed” their inspection. They changed my oil and replaced my cap. Within six months, I threw a Rod. Not only did I have a horrible experience with the dealership, my new motor is also ticking.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760681August 29, 2026
FUEL/PROPULSION SYSTEM, POWER TRAIN, ENGINE
Took car in to have it checked for recall on engine and have oil changed to new standards with WD40 was told the engine and car was fine “just use this new oil” A MONTH later was driving and engine would not shift come to find out our transmission was going out it was replaced thanks to our extended warranty (even tho it only had 98,000 miles on it) a week after a fuel pump was out and we had to pay to replace it. There were never check engine signs and no signs of the car having failure truly it ran great until the new oil.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760207August 28, 2026
ENGINE, FORWARD COLLISION AVOIDANCE: WARNINGS
I was driving on the Northeast extension at roughly 70 mph in the passing lane and my car lost forward power and went into reduced acceleration mode. The check engine light is on, violently shakes when parked, with additional dashboard notifications saying Service ESC, service traction control, and forward collision system unavailable. I had my engine replaced in September due to the recall.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760263August 28, 2026
ENGINE
Yukon would not idle without turning off on its own. Check engine light came on. Took it to my mechanic. Check engine light was flashing which indicated an active misfire. A running compression test found little to no compression from cylinder 6. Further investigation found that cylinder 5 had been repaired in 2022. Mechanic recommends engine replacement.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760278August 28, 2026
ENGINE
Driving down highway the engine made a squeeling noise. The engine shuttered and kept making noise then said to reduce speed. Then quit running all together.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760299August 28, 2026
ENGINE
The contact owns a 2025 GMC Yukon. The contact stated that while driving at an undisclosed speed, the engine seized. No warning lights illuminated. The vehicle was towed to a dealer, where it was diagnosed that the engine, radiator, and an unknown belt needed to be replaced. The vehicle was repaired; however, the failure recurred. While driving at an undisclosed speed, several unknown warning lights illuminated, and the engine seized upon arriving at the dealer location. The vehicle failed to restart. The dealer diagnosed that the generator and air conditioner failed and needed to be replaced. The vehicle was in the process of being repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage was approximately 33,018.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760378August 28, 2026
ENGINE AND ENGINE COOLING
The contact owns a 2021 GMC Yukon. The contact stated that while pulling into a parking space at an undisclosed speed, the vehicle stalled. The contact associated the failure with NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The vehicle was towed to a dealer, where it was diagnosed that the fuel pump control module had failed. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 81,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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