GMC Yukon Complaints

6,462 consumer complaints on file.

#11730406April 10, 2026
TIRES
The contact owns a 2023 Chevrolet Yukon. The contact stated upon taking the vehicle to the service center for the tire's replacement service, the mechanic informed the contact that the PSI label included an inaccurate PSI recommendation for the 22-inch original tires. The contact stated that the recommended PSI listed on the tire label was for the 20-inch optional tires that were not installed on the vehicle during purchase. The local dealer and manufacturer were notified of the failure, but no assistance was provided. The failure mileage was 50.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11730379April 10, 2026
POWER TRAIN
vehicle lost power on highway with my sons family in the car. Vehicle was towed to dealer from which it was purchased . outcome was the motor failed and a remedy could be months out with gm only offering a 35/a day rental from enterprise which no vehicle that compares can be rented at that cost.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11730014April 8, 2026
POWER TRAIN
The 2017 GMC Yukon has serious transmission issues that GM continues to ignore, and it is going to get someone hurt. I was stopped at a red light, and when it turned green, I pressed the gas pedal but the car would not move. I pressed harder, and then it suddenly lurched forward about 30 feet. If there had been a car in front of me, I would have hit them and likely caused injuries. When I took it to the dealership, they said it needed a full transmission replacement, which was not covered. I had to pay out of pocket. I was only about $10,000 outside the warranty when it failed, and GM refused to stand behind their product or help in any way. I was already financing the vehicle and should not have had to pay for a new transmission on a car that was less than four years old with relatively low miles. This is not just my experience. Many others have had the same issue. GM knows about it and chooses not to acknowledge it. They are lucky no one has been seriously injured or killed because of it. Going to attach all of the proof of people "coincidentally" experiencing the same issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729983April 8, 2026
ENGINE
My engine completely failed on March 19, 2026 and it is currently at Sterling GMC in Bryan Texas waiting for a backorder engine as it needs to be completely replaced
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
#11729570April 7, 2026
UNKNOWN OR OTHER
The telematics module aka OnStar, doesn’t not work.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729558April 6, 2026
POWER TRAIN
I took this vehicle in for the recall that GM had indicated. The vehicle was taken to a GMC dealer and “passed” the PICO test and the oil was changed out as recommended. Two weeks ago, the engine completely seized while driving in the interstate and was towed back to the dealership. I am now waiting on engine replacement after passing their solution. The car has roughly 30,000 miles on it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729547April 6, 2026
ENGINE
My engine has metal flake in it and once which is a sign of engine failure. I reported it to GM they said it was a normal amount and to keep an eye on it the next day toil change. They issued a recall on the 6.2L motors and they have not on the 5.3L motors and this one is doing the same thing. I want to get ahead of the ball before my engine give out on the highway but GM is treating it like it’s not a big deal.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729441April 6, 2026
POWER TRAIN
Loss of power while driving on highway, would not speed up. Shaky driving. Appeared to go into limp mode. Dealer informed me that the transmission valve body will need to be replaced. No prior messages or alerts, check engine light came on after power loss.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729324April 5, 2026
POWER TRAIN, ENGINE
Nothing has happened yet. However, after only 308 miles… my 2026 Denali is knocking and ticking very loud. Why? How is this possible? We’ve only had it 2 weeks! I have only driven it 5-6 times in the past 14-15 days, too worried that this might happen. But I was reassured by the dealership it wouldn’t. But here I am now. I am so disappointed. Being a Disabled Vet I thought we could have something that we both liked. Now I am upset because I feel betrayed and lied to. I did a video but it’s too large to upload so I can’t get it under 10MB.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729010April 3, 2026
POWER TRAIN
The contact owns a 2019 GMC Yukon. The contact stated that while driving at slow speeds in a parking lot, the transmission unexpectedly downshifted and the vehicle jerked abnormally. The contact stated that when the gear shift lever was shifted to drive(D), the vehicle failed to function as designed. The contact was unable to drive the vehicle, and the vehicle was towed to the residence. No warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed that metal shavings were found in the oil and the transmission needed to be replaced. The warranty had expired, and the vehicle was not repaired. The contact stated that the failure persisted. The vehicle was then taken to a transmission specialty shop, where it was confirmed that metal shavings were found in the oil and that the transmission was defective and needed to be replaced. The contact took the vehicle back to the private dealer where the vehicle was purchased. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 125,870.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729075April 3, 2026
ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY
The contact owns a 2018 GMC Yukon. The contact stated that the vehicle was taken to a local dealer for service, and the contact was informed that the radiator was leaking and needed to be replaced. The contact stated that there were no signs of a leak prior to taking the vehicle for service. The contact was advised by the dealer that it was a common failure for the year and model vehicle. The manufacturer was contacted and offered a buyback. The vehicle was not repaired. The failure mileage was 128,640.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11729008April 3, 2026
ENGINE, FUEL/PROPULSION SYSTEM, POWER TRAIN
Monday, March 30, 2026 my GMC Yukon Denali had already had the recall pico test and was told it passed on September 2025 six months later March 30, 2026, driving to pick up my wife from work a tapping sound coming from the engine started and about a mile down the road from when I first heard the tapping the engine started juttering and the noise got louder like a clunking sound. I had to pull off the road into a gas station and use the OnStar to get assistance the vehicle was towed to a local San Antonio dealership Cavender Buick West they gave me a loaner vehicle the next morning and the day after that Wednesday I was informed that yes they confirmed the engine will have to get replaced so now I am waiting for that. I was told by the dealer it could take up to two months for them to receive a replacement engine and once they receive the engine, it can take roughly for maybe five days for turnaround. I inquired whether the replacement engine isn’t upgraded engine or is it the same engine that has all the problems I haven’t received an answer for that yet. I am awaiting that answer from my service advisor. He said he is looking into that.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728908April 2, 2026
ENGINE, ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The brake system control module, engine control module, and vehicle stability control system have repeatedly failed across 24 months and 9 repair attempts at two authorized GMC dealerships in Tennessee. As of March 17, 2026 the vehicle has 27 active diagnostic fault codes including U160F and U1610 (brake system control module lost communication on both CAN buses), U1611 (engine control module lost communication), and C2A0A (vehicle stability control disabling inhibited). All components are available for inspection at Beaman GMC in Antioch, Tennessee where the vehicle currently remains in an undrivable condition. Safety risk: Vehicle has stalled on the highway with my family including young children in the car. Brakes have randomly engaged over 100 times with nothing around and also failed to engage when needed. Stability control is disabled. These are active safety failures confirmed by GMC's own diagnostic scans. The problems have been confirmed by both Darrell Waltrip GMC and Beaman GMC across 9 visits. GMC's own Technical Assistance Center (Case XXX) was involved and could not resolve the defects. The vehicle was returned with more active codes than at drop-off after 57 consecutive days in GMC custody. Two unresolved GMC safety recalls are open on this vehicle — L87 engine loss of propulsion (N252494003) and brake fluid leak detection failure — directly related to the reported defects. Warning codes have been present and documented since October 2023 beginning at 1,381 miles. 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
#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
#11728473April 1, 2026
FORWARD COLLISION AVOIDANCE: WARNINGS, BACK OVER PREVENTION: WARNINGS, BACK OVER PREVENTION: REARVIEW SYSTEM BRAKING
What component or system failed or malfunctioned, and is it available for inspection upon request? The vehicle experienced a malfunction associated with a failed Over-The-Air (OTA) software update affecting electronic control modules. The (ECM), (BCM), and related electronic systems appeared to lose stability during operation. The vehicle attempted to reboot while being driven and displayed multiple system warnings. The vehicle is currently at the dealership and is available for inspection upon request. How was your safety or the safety of others put at risk?While driving, the vehicle began malfunctioning and attempting system reboots. The dashboard flickered, warning lights, and the vehicle exhibited unstable behavior. During a prior event, the vehicle experienced unintended acceleration and abrupt deceleration. This created a risk of loss of vehicle control, particularly in traffic. I have small children in this vehicle, and the unpredictable electronic behavior while in motion posed a significant safety concern. Has the problem been reproduced or confirmed by a dealer or independent service center? The dealership confirmed that a previous event was caused by a failed OTA software update. The vehicle has since malfunctioned again while driving and has been taken back to the dealership for further inspection. The dealership has acknowledged module instability and opened a TAK case with the manufacturer. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? The vehicle has been inspected by GMC1 dealership. A case has been opened with GM Customer Care. No police or insurance reports. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? 9 days prior to the first major malfunction, the check engine light illuminate. On April 1, the check engine light re-appeared and the vehicle attempted to reboot again while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728192March 31, 2026
ENGINE
Months ago I took my car to the dealer for the engine failure recall and they said there were no issues and changed the oil to a higher viscosity oil. Today I was driving and my engine failed while turning onto a busy road and took multiple tries to get started. It finally started and the engine light was flashing. The dealer told me th flashing engine light was bad and to not drive at all. I pulled over and had it towed to the dealer. The engine light stopped flashing. The dealer said they pulled a code on the computer and would look at it. They had my car for a full day so far and have said they can't find an issue. I do not feel safe having my family in this car when the engine can fail and they say nothing is wrong. I am lucky that I wasn't hit at the location it failed at.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728048March 30, 2026
POWER TRAIN
The 8-speed automatic transmission (Hydra-Matic 8L90) on this 2017 GMC Yukon SLT 5.3L V8 has failed. This is a repeat failure — the transmission was previously rebuilt in 2020 under a GM recall/service action for the same known defect affecting this transmission type. The transmission has now failed again in 2026, approximately six years after GM's prior repair. Prior to failure, the vehicle exhibited hard shifting, shuddering during acceleration, and hesitation between gear changes — symptoms consistent with the known defect pattern documented across 2015–2019 GM vehicles equipped with this transmission. The failure was confirmed by a service center. The vehicle is currently not safely drivable. Safety concern: erratic and unpredictable gear changes, including sudden lurching and hesitation during acceleration, create a dangerous condition for the driver, passengers, and other vehicles on the road. GM has been contacted through their Customer Assistance Center (case opened). GM's initial position was that they cannot assist because the vehicle is out of warranty. However, this is a repeat failure of a previously repaired known defect. GM issued 13+ technical service bulletins on this transmission and has been aware of the root defect since at least 2018. A federal class action (Speerly v. General Motors, E.D. Michigan) covering this exact vehicle type and transmission has been certified and upheld by the Sixth Circuit Court of Appeals. The prior GM repair did not remediate the underlying defect.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11728014March 30, 2026
ENGINE AND ENGINE COOLING
Please see attachment
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11727838March 29, 2026
POWER TRAIN
I purchased my used GMC YUKON from a used car dealership 3/28/26. I signed the papers for the agreement while I was driving the vechicle home I lost power and it wouldn't go forward with gas applied. The check engine light came on, I pulled the suv over and it was towed. The code that popped up 0700 and 02723 both codes having to do with the transmission.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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