GMC Yukon Complaints

6,462 consumer complaints on file.

#11722391March 6, 2026
ENGINE, VEHICLE SPEED CONTROL
I had just pulled off from street light, hit button to turn auto engine shutoff off, all of sudden I lose power as if I'm in neutral, engines reving up but won't go. Then kicks in but with less power like gears will not shift. I get to my destination but car will not go in reverse.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722330March 5, 2026
ENGINE
My vehicle started making a weird noise and when I took it to the shop, they told me my crankshaft has gone bad and I was lucky I caught it before the entire engine blew
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721500March 2, 2026
ELECTRICAL SYSTEM, ENGINE AND ENGINE COOLING
The contact owns a 2022 GMC Yukon. The contact received notifications of NHTSA Campaign Numbers: 22V617000 (SEAT BELTS), 25V274000 (ENGINE AND ENGINE COOLING), and 22V903000 (EXTERIOR LIGHTING). The vehicle was serviced under Customer Satisfaction Program: N242436631. However, the failure occurred. The contact stated that after the serial data gateway module was updated, the check engine warning light remained illuminated. The vehicle failed to restart with the key fob, and the doors failed to unlock with the key fob. The vehicle was taken back to the dealer; however, the dealer refused to diagnose or repair the vehicle. The manufacturer was not made aware of the issue. The failure mileage was 177,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721306March 1, 2026
POWER TRAIN, FUEL/PROPULSION SYSTEM, ENGINE
2026 Yukon Elevation with 3,957miles. I was driving down the road and pulled into the turn lane at an intersection. Vehicle cut off with the Auto Start/Stop function and would not start back up. I continued and tried to restart the vehicle but would not start; I was blocking the lane with cars continuously going around me. Vehicle stated service transmission on the display- I was unable to put it into neutral to push it out of traffic; You are only allowed to put it into neutral when crank and couldnt get the accessory mode to come on without the vehicle trying to start. I called the local police department and they sent an officer to direct traffic until a tow truck showed up. Both observed the vehicle not starting. There were no symptoms prior to the vehicle cutting off, only once auto start/stop initiated did the vehicle not restart. Vehicle will be sent back to the dealership tomorrow to resolve this issue. I have dash cam footage of the incident and photos of the display on the screen.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721242March 1, 2026
UNKNOWN OR OTHER
When initially turning the vehicle on for the day and turning on the heater, the cabin fills up with exhaust fumes odor. This also happens while the car is idling and not moving. Have taken it to the dealership and they do not know how to proceed or what is wrong with it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721207February 28, 2026
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: WARNINGS
I had an incident in my 2020 GMC Yukon, where the forward collision crash alert went off and there was total loss of brakes. The brake pedal went to the floor. After the crash alert ended, the brakes returned. This happened on the highway and could have turned into a disastrous event. The dealership has been unable to diagnose or recreate this issue. They claim they did not find anything and the vehicle is safe to drive. I have turned off the collision detection system in the meantime. I feel strongly that this is a software issue that needs addressed. GM has replied that they support the dealership but if I want a second opinion I can go to another dealership for input.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720660February 26, 2026
POWER TRAIN
The contact owns a 2015 GMC Yukon. The contact stated that while in reverse(R), the vehicle jerked while depressing the accelerator pedal. There was no warning light illuminated. The contact became aware of fluid spots on the driveway while the vehicle was parked. The vehicle was taken to an independent mechanic who discovered a leak in the transmission oil cooler line. The dealer then informed the contact about NHTSA Campaign Number: 14V152000 (Power Train); however, the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was notified of the failure and transferred the contact to the NHTSA Hotline to report the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720669February 26, 2026
UNKNOWN OR OTHER
Gateway system module failed during the L87 recall service.The major L87 recall (ECM update) is a major, high-load software update that frequently causes the Gateway Module to "brick" or stop communicating during the update process resulting in failed module immediately following the service. (TSB) speak to this, The L87 recall is a safety-critical repair, a failure of a module directly caused by this repair should be covered under a recall warranty or GM warranty. Safety can be affected as warning lights will not work due to this failure. Timeline of events. As soon as warranty service was completed before leaving bay lights were not working like Onstar etc, app wouldnt connect to car, 1-2 hours after leaving service engine light came on in car. Never had an engine light on before. Took back to dealer who said it was a computer issue they corrected it. 2 hours later engine light was back on. My car has been at the dealer since Monday when they called to say the GSM had internal failure and wanted to charge me to replace it despite this internal failure being in response to the warranty service that was provided, There are Technical service bulletins about this issue, this has been a known issue with GM vehicles, My timeline shows strong evidence that the failure is a direct result of the recall repair. There is GM TechLink documentation that these modules can be ruined if the update process creates a high load. GM needs to extend the GSM repair/recall or extend coverage for this repair when this happens. This is just another thing GM is not taking responsibility for.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720657February 26, 2026
POWER TRAIN
Vehicle developed hesitation. Message: "Reduced Acceleration Drive with Caution" Check Engine light comes on, fortunately near home. Scanner showed "PO 0747 Transmission Valve #1 stuck open." Research shows this is a common problem and a safety issue and can leave driver stranded or worse. Had vehicle "serviced" at selling dealer, but they did not touch the transmission. Said they drove it around the block and it was fine. Image attached. I was then told that parts are not available and GM will not authorize swapping out the valve body. Forums posts show a lot of dissatisfaction with GM over this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720219February 24, 2026
ENGINE
The contact owns a 2025 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly went into LIMP Mode with a limited speed availability message displayed. The vehicle was restarted; however, the failure recurred. The vehicle was taken to the dealer, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,837
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720183February 24, 2026
POWER TRAIN, ENGINE
My 2021 GMC Yukon suffered the same engine failure that is the subject of the recall. It has just over 70,000 miles. I'm now told I need a new engine. The dealer confirmed that this is the same issue that has impacted other similar vintage Yukons.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11720131February 24, 2026
ENGINE
The engine failed and had to be replaced with less than 70,000 miles on it. There has already been a recall associated with these vehicles where a part is either replaced or special oil has to be used. It does not seem that the fix prevents the engine from failing.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719970February 23, 2026
ENGINE
The contact owns a 2016 GMC Yukon. The contact stated that the vehicle was initially repaired under warranty for a bent push rod in cylinder #4; however, the failure recurred. The vehicle was repaired another time at the expense of the contact's son, who previously owned the vehicle; however, the failure persisted. The contact stated that while idling and while driving, the engine was misfiring and running rough. Additionally, there was a significant amount of smoke coming from the exhaust pipe. The check engine warning light was illuminated. The vehicle was taken back to the dealer, where it was diagnosed, and the dealer determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was contacted and informed that the repair would not be covered because the vehicle was out of warranty. The failure mileage was approximately 27,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719710February 22, 2026
ENGINE
Oil consumption is an issue. My vehicle is using a quart of oil every 1,000 miles. Manufacturer says oil changes are 5,000 mile intervals, however at 2500 miles the dipstick is dry and the low oil light comes on. There are no leaks in the driveway, nor is it smoking. The manufacturer claims this is normal. If I were to wait the 5,000 miles for an oil change I would only have three quarts of oil left in an engine that is supposed to have 8 quarts and therefore my engine would lock up. I fear that this engine will fail and I travel with our daughter all over the state of MO and OK for horse shows and do not wanted to be stranded on the interstate with my child in the car. After much research it is obvious this is a common problem with the 6.2L engines. There is an abundance of videos, forums, chats, etc stating how widespread this issue is and that GM continues to put off developing a fix or replacing the engines. We just completed an oil consumption test with the dealership and they are going to submit it to the warranty company. However, our fear is they will deny it saying it's a GM issue and kick it back to us.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719491February 20, 2026
POWER TRAIN, ELECTRICAL SYSTEM, LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH
The contact owns a 2013 GMC Yukon. The contact stated that while driving approximately 65 MPH, the rear tailgate opened independently. The failure had occurred on several occasions. The battery warning light was illuminated. The contact stated that while driving at approximately 55 MPH, the vehicle lost automotive power. The contact pulled over to the shoulder lane and attempted to shift to park(P); however, the vehicle failed to shift to park(P). No warning lights were illuminated. The vehicle was towed to a dealer, where it was diagnosed that the transmission needed to be replaced. The vehicle was repaired. The vehicle was taken to a dealer to be diagnosed; however, the dealer stated that the failure of the battery light being illuminated was unknown. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719418February 20, 2026
ENGINE
Recall for engine 6.2L was sent may 2025 yukon was taken in for recall repair at the time there was no solution for the recall, June 2025 driving on the highway engine failed lost all control to vehicle in the middle of driving car just shut off and would not turn back on towed to dealership engine failure determined. fixed and inspected before returning the vehicle to me July 2025, now Feb 2025 engine has failed again while driving
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719366February 20, 2026
ENGINE
Recall Notice for Engine - Recall Service done 12/7/2025 - completed Full Engine Failure 12/22/2025 after recall service completed - Engine Replaced and returned to us on 1/15/2026 2/20/2026 - Service Engine Light with same warning code now on Yukon with new Engine - appears as if new engine has failed
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11719332February 20, 2026
ENGINE
Vehicle: GMC Yukon Denali Model Year: (insert) Engine: 6.2L L87 Mileage at Failure: 44,000 Failure Date: February 18, 2026 Recall: GM 6.2L Engine Failure Recall (crankshaft/bearing defect leading to propulsion loss) Complaint Summary: Complete engine failure and total loss of propulsion on a high-speed highway on-ramp with my family inside, causing extreme danger and emotional trauma. Full Description: On February 18, 2026, my GMC Yukon Denali experienced a sudden and complete loss of propulsion while we were on the on-ramp to a high-speed, heavy-traffic expressway. The engine failed without warning as traffic was accelerating rapidly around us. My husband, my [XXX] son, and I were all in the vehicle on our way to celebrate my son’s birthday. Instead, the vehicle died in one of the most dangerous locations possible — the merge zone of a busy highway — leaving us stranded with cars coming at full speed. Traffic immediately began backing up for a long stretch behind us. Drivers were honking, yelling, and aggressively swerving because the lane was blocked by our stalled vehicle. The situation felt chaotic and frightening. I genuinely believed we were at risk of being rear-ended at highway speed. We felt helpless waiting for police to arrive to protect us. The emotional distress, panic, and fear for my family’s safety were overwhelming. My son was shaking and visibly upset on what was supposed to be his birthday celebration. None of us felt safe until law enforcement was able to block traffic. After the incident, the dealership confirmed that the failure was caused by the GM L87 engine defect currently under recall and stated that the engine needed to be completely replaced. This sudden stall created a severe safety hazard that could have easily resulted in a catastrophic crash, injury, or worse. It has had a lasting emotional impact on me and my family. 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
#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
#11718407February 17, 2026
ELECTRICAL SYSTEM, VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
The contact owns a 2022 GMC Yukon. The contact stated that while operating the vehicle, the computer system malfunctioned, causing the instrument cluster to turn off unintendedly. Additionally, the doors failed to immediately unlock, and the driver’s side mirror could not be adjusted. The vehicle was taken to the local dealer, who was unable to determine the cause of the failure. The manufacturer was not contacted. The failure mileage was 22,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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