GMC Yukon Complaints (2024)

106 consumer complaints on file.

#11749056July 8, 2026
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
As I was driving the automatic emergency brakes went off and stopped me so hard and fast that I feel like I got whiplash. The seatbelt yanked me backwards, smacking my head against the headrest, I have an instant headache from it and my neck and shoulder still hurt 20 minutes later. It scared me and my child half to death, my heart was pounding and I could have been rear ended. I was driving about 40mph and was in no way in any harm/needing to break (specially this hard) for anything when this happened. This is not the first time my car has unnecessarily automatically slowed down quickly but this is the first time it’s ever been this abrupt and severe. I will be taking my car to be inspected for this issue and if my neck and shoulder still hurt in the next day or two, I will also be going to the doctor about the incident.
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11746964June 27, 2026
ENGINE
This truck has the 6.2 GM engine. While driving it late at night at approximately 28mph the engine blew, leaving the truck in the lane and unable to move. This was very dangerous since there was no warning and it just died. The truck receives regular maintenance by GMC and was tested to see if it was a “bad engine” and we were instructed that it wasn’t. GM said it will take 4-8 weeks to get an engine and the value of the truck to trade in is very low due to “marketing issues” which in my opinion is their issue not mine. I am battling stage 4 cancer and just had an operation and need a car to go to the doctors. They have officially said that they don’t have a truck to loan me. This has been going on for years apparently and the government is not doing anything to rectify it for the US tax payers per my research. I need a truck and GM said that they would get back to me within 24-48 hours, we are way past that. What is the government going to do, these trucks are not safe. What if I was traveling late at night to snowmobiling and it blew, it would be a different story. Need some help
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11745348June 20, 2026
ENGINE
At 35k miles our 2024 Yukon Denali with a 6.2L engine blew on a roadway with no known warning. Extremely dangerous situation with my pregnant wife and child in the car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11741129May 31, 2026
ENGINE
On our way home from vacation our engine failed and stranded us. This is the second engine that has failed and the vehicle only has 30220
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11740704May 28, 2026
ENGINE
I would like to document it took 7 trips to set the monitors after a failed smog check. That is 21 time going from 55 miles a hour to coasting to 20 miles a hour. on a freeway. Three times per trip at 2:00 - 3:00 in the morning. Also my Catalytic Converter went out at 26,000 miles. It should last 70,000 - 100,000 miles or 10 years. Catalytic Convertor was replaced by dealer. Will i have to replace it every 26,000 miles?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11738051May 15, 2026
ENGINE
My engine ticks, and during the winter, I noticed white smoke coming from exhaust pipes in cold and warm weather. I believe there may be an issue with my engine. My vehicle is not on the list provided, and I’m concerned that the dealership responsible for my oil change package will not identify the problem, possibly because newly hired mechanics may lack the experience to make an accurate diagnosis. I’m afraid my vehicle will be overlooked intentionally.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11737396May 12, 2026
ENGINE, POWER TRAIN
For the third time, my vehicle died on me while I was driving; 2 of those times were on the highway going highway speeds. The last (3rd) time, I was towing my travel trailer/RV on the highway. In all incidents, the engine stopped propelling the vehicle. I could see and hear the engine revving but I failed to accelerate. After various warnings on the dash, I was able to pull safely off the road and then the engine just stopped, and nothing else worked. It failed to restart. This could have been a potentially dangerous situation because had I not been able to safely pull over, I would have been rear-ended. My vehicle was not part of the L87 recall for the 6.2L GM engines but the symptoms sound the same as those that were. The recall probably should have been expanded beyond the dates that GM originally included.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11735319May 2, 2026
ENGINE
Engine suffered catastrophic failure without warning while traveling highway speeds after being cleared during recall check and suggested oil viscosity change. Most recent dealer performed service on 4/3/26 showed no mechanical issues and engine failed 2 weeks later on 4/17/26.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729637April 7, 2026
ENGINE, POWER TRAIN
The contact owns a 2024 GMC Yukon. The contact stated that while the vehicle was stopped at a red traffic light, the accelerator pedal was depressed and the vehicle stalled. The message "Conditions not Available to Change Gear" was displayed. The vehicle was restarted and driven to the residence. The contact stated that several days later, while pulling into a parking lot, the vehicle unexpectedly stalled. The vehicle was restarted and was then towed to the dealer; however, the failure could not be duplicated. The manufacturer was notified of the failure. The failure mileage was approximately 24,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728869April 2, 2026
POWER TRAIN, ELECTRICAL SYSTEM, ENGINE
From the time i got my 2024 yukon denali i have had problems with the electrical systems not working, it was in the shop for 2 months upon delivery to me when it was brand new, and since then i have had issues with the engine racing, the start button not working, or cutting off and on , on its own, recently the motor cuts on but never turns over. It has been in the shop again for over a week now and they replaced the engine control module and it is still doing the same thing. The dealership is now telling me its a wiring issue causing it. It has been something the entire time I have owned it. I paid 90k for a vehicle that has major issues. I am looking into the Lemon law in my state of NC, and filing a complaint with GMC to see if I can get a replacement vehicle or traded.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723837March 12, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM, ENGINE
Vehicle shut-off while driving on the expressway, around 70-75mph. Upon vehicle turning off, I had no option but to "coast" off to the left side, which thankfully, freed me from traffic for the most part. If anyone who have been a foot over, they would've hit me. I have had numerous electrical issues with this vehicle and have taken it to the dealership but they have been "unable" to duplicate the issue. Vehicle was immediately taken to the dealership (and they still have as of this incident report submission). They told me last night that they will keep it again today and test drive it again to see if they can get it to do anything but if it doesn't show anything new, they have nothing to diagnose and will give me my car back. After requesting a copy of repair orders and a list of the history codes in my car, I am beside myself that anyone thinks giving me this vehicle back to drive is ok. See the history code report in documents uploaded. These are MAJOR safety failures in a large vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723372March 10, 2026
ENGINE, BACK OVER PREVENTION: WARNINGS, FORWARD COLLISION AVOIDANCE: WARNINGS
We were driving on the highway when the service lights came on along with the check engine light started flashing. The truck sounded like it hesitated a little, but the lights turned off and it drove his normal. We exited the freeway as we were close to home came home, parked it turned it off and turned it back on to test it, and it hesitated to turn on so we took it straight to the dealership where they repeated the issue. We left it there. They did not call me so I went up to the dealership the following day to check on this and I had not heard from them they told me why they were on the test drive that the engine had locked up. My vehicle was a part of the initial recall. They told me that it passed the inspection and they changed the oil to the new oil that was required and now at 12,000 miles my engine has failed
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719059February 19, 2026
ELECTRICAL SYSTEM, ENGINE, FUEL/PROPULSION SYSTEM
The SUV has 46,000 miles on it. Recently, the check engine light illuminated, prompting me to take it to the dealership for servicing. The diagnostic codes retrieved were U0285 and U1345. I was informed that the aero shutter required replacement. There was no physical damage; it merely ceased functioning. The dealership confirmed the active check engine light and conducted a diagnosis. While my safety was not immediately compromised, I felt extremely frustrated upon learning that GM would not cover the repair under warranty, despite this being a recognized issue that GM has yet to address. This situation is simply unacceptable and warrants further investigation and resolution.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11714672January 31, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM, POWER TRAIN
This report documents two separate safety incidents involving the same vehicle that occurred on different dates. Approximately one month prior to the most recent incident, while driving my young children to school, the vehicle experienced a sudden and severe loss of braking effectiveness while in motion. I was unable to stop normally at stop signs and had to roll through and roll to a stop. I was required to press the brake pedal fully to the floor to slow the vehicle, and even then braking response was significantly reduced and not functioning as designed. The engine remained running and the vehicle could still accelerate. After stopping and restarting the vehicle, braking function temporarily returned. On a later date, while again transporting my children, the vehicle experienced a complete loss of power while driving. The vehicle abruptly shut down while in motion. I was unable to accelerate and experienced loss of power assisted braking. The vehicle only came to a stop after coasting. Following this shutdown, a burning or melted plastic odor was present. The vehicle was later towed and inspected by a dealership. The battery was replaced; however, this did not resolve the issue. After the battery replacement, the vehicle later hesitated to start again. The exact cause of these failures remains unknown. These incidents occurred without warning and represent serious safety critical failures involving braking and propulsion systems. Both incidents placed my children, myself, and other motorists at risk. Had either event occurred on a highway or heavily trafficked roadway, there would have been little to no ability to safely slow or stop the vehicle, creating a significant risk of collision or serious injury. Due to these events, I no longer feel safe operating this vehicle and have stopped driving it. The vehicle remains available for inspection.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713927January 28, 2026
SEAT BELTS
While parked, my [XXX] daughter was in the third-row bench seat. The seat belt became wrapped around her body/neck area. The seat belt entered its 'Automatic Locking Retractor' (ALR) mode and continued to tighten as she moved, pinning her against the seat. The locking mechanism would not release, and the belt became so tight she was unable to breathe. We attempted to manually release the buckle and create slack, but the retractor remained locked and continued to tighten. After several minutes of unsuccessful attempts to free her, we had to use a cutting tool to sever the seat belt to save her life as she couldnt breath, she has brusing where the seat bealt was tighten. The vehicle was stationary in a parking lot at the time. The car has not being inspected , there was not warning. 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
#11713884January 28, 2026
VISIBILITY/WIPER
Vehicle can be completely off and windshield wipers are still going. So you have to pop the hood and pull fuse out. If you want to use them ( it starts raining, dirty windshield) you have to stop pop the hood and put fuse in. Has been in shop almost weekly repaired every part they could possible switch and still not repaired.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713228January 25, 2026
ENGINE, FUEL/PROPULSION SYSTEM
I have a 2024 GMC Denali that had an engine service appointment in September 2025 for the engine recall where they did an oil change & put in performance grade oil & scoped my engine. Rochester Serra GMC said they sent all the engine pictures to GM and my engine was okay according to them. After that appointment in November my engine light went on and my Denali was leaking oil in my driveway. We took the truck back to Serra GMC Rochester and they replaced the oil filter that they said was defective & an oil change was done after my husband requested that just filling up the oil was not okay. They also told us the engine light didn’t show up on their computer system and it must have cleared out, so nothing was done for that. Today 1/25/26 now about a month later my engine light is back on and has remained on with multiple starts. This is not acceptable and needs to be investigated and I want this escalated. I do not feel comfortable driving my truck with this engine light on with a known engine propulsion recall that has no actual cure. The oil replacement and cap change has done nothing and engine light remains on. I just don’t want to hear the same thing that the computer must have cleared the error code. My engine light is on for a reason and I’m asking for a thorough diagnostic test to be done by a certified technician and a get a valid explanation of why my engine light keeps going on & not just changing my oil or waiting for something catastrophic to happen to me or my family. GM is putting me and my family at risk by saying that my truck’s engine is fine when clearly the engine light keeps repeatedly going on for 3 months in a row now since November 17, 2025.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11713134January 24, 2026
POWER TRAIN
Vehicle 4WD performs poorly with car fishtailing at very low speeds 30 MPH in a straight lane. Very scary . Feels unsafe to drive . Brand new tires were installed prior to that. So not a tire issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711801January 19, 2026
ENGINE
Driving down the inter state lost power and RPM raised, oil light came on and said to shut off. We checked the oil it was fine. Got back on the road then a knocking started and the vehicle shut off. I tried to start again and it wouldn’tand hour or so later it started and was knocking bad, I turned it back off. called tow truck driver to have it towed to the dealership.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#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

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