GMC Yukon Complaints

6,462 consumer complaints on file.

#11774191October 28, 2026
FUEL/PROPULSION SYSTEM
While stopped in a parking lot. I returned my vehicle to drive home, and the car would not start. I had it towed to the dealer. They did a diagnostic inspection for "crank-no-start ". Two trouble codes: P0340 intake single camshaft ignition sensor circuit and P00C6- fuel rail pressure load during engine cranking. Performed diagnostic checks and suspect a broken timing chain and timing tensioner that causes the bottom of the engine to free spin while the top 0.5 does not. These engines are known as interference engines, and anytime there is a mismatch between the top 0.5 and the bottom 0.5, there is the potential for catastrophic failure due to the design of the valve train and bottom 0.5 of the engine. The technician suggested a full engine replacement. I went to the dealer and spoke with the Service Manager, Greg, and he stated that he would reach out to GMC because the VIN number was not part of the recall, although the YEAR/MAKE/MODEL is. I also reached out to GMC to open a claim. To date, I have not heard back, and they have not yet accepted responsibility for replacing the engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11774094October 27, 2026
SEAT BELTS
The cable that attaches at the base of the seat sheared off making the anchor point useless
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11773700October 26, 2026
SERVICE BRAKES, HYDRAULIC
The contact owns a 2025 GMC Yukon. The contact stated that while driving at 55 MPH, the brake assist failure and service esc warning lights were illuminated, the brake pedal became very stiff. The vehicle failed to stop as needed and coasted off the roadway and shifted into park(P). The manufacturer was notified of the failure. The vehicle was towed to the dealer but was not yet diagnosed. The failure mileage was 39,481.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11773740October 26, 2026
ENGINE
As I was driving down the road at 60mph, no dash lights or warnings were present. All of a sudden, my 2021 yukon lost all power and I nearly crashed as I was in heavy, fast paced traffic. I got to the side of the road, and it was at this time the engine light came on. Car died and wouldnt start back up.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11773487October 25, 2026
UNKNOWN OR OTHER
I am writing to formally report what I believe is a design flaw in my new GMC Denali involving the center console lid. The lid does not have a stopper, dampening mechanism, or other means of holding it securely in the open position. When I lift the lid to reach for an item inside the console, it can fall closed unexpectedly and slam down on my hand. This creates an avoidable risk of injury during ordinary use of the vehicle. Accessing a center console storage compartment is a routine activity, and the lid should not unexpectedly close on the user’s hand. I am concerned that this design may affect other owners of the same vehicle model. I believe the issue warrants review by GMC’s product engineering and vehicle safety teams
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11773385October 24, 2026
ELECTRICAL SYSTEM
About 1 month ago while driving down the highway, my vehicle dash and screen went completely back for a few seconds and came back on. As if it shorted out
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11773211October 23, 2026
POWER TRAIN
Initially the vehicle was slowing at a moderate pace from 75-40mph while on the freeway during [XXX] rush hour. Two days later after getting off the interstate, the rear wheels locked up while doing 40mph on a side street for approx. 1.5seconds. If this had happened on the freeway it would have caused an accident or loss of control. The dealer inspected the vehicle, recreated the issue, and stated the valve body valves were sticking and needed replacement. We never got any warning lights, nor did the dealer before and after they recreated the issue. 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
#11773262October 23, 2026
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact purchased a 2008 GMC Yukon. The contact discovered that there was a mileage discrepancy after the purchase. The vehicle was an independent dealer sale. At the time of purchase, the mileage was 157,944. It was later discovered while checking the Carfax report, that the mileage was 312,118.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11773344October 23, 2026
ENGINE
crank/rod failure on 6.2 engine. yes it is available same as other people with blown 6.2s yes, GMC dealer diagnosed crank failure no no. engine still runs but is knocking and squealing but dies after a few mins and won't restart till it cools off
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11772626October 21, 2026
ELECTRICAL SYSTEM, ENGINE, STRUCTURE:BODY
My 2026 GMC Yukon Denali Ultimate has had the vadar chrome peel in the first 7000 miles. After that a wiring pinch made the 4 wheel drive unusable during the winter months that I needed it to get into my driveway During summer months the infotainment center completely failed to a black screen and since does not function having the dealership tell me that it will need to be replaced. The 6.2 motor started ticking at 25000 miles, I took it to the dealership yesterday 10/14, the dealership is keeping the vehicle for an estimated 6 weeks to tear the motor apart. The motor is making the noise where it is reported to shut down at high speeds had I not got it in when I did. The vehicle has had no warning to indicate problems.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11772421October 20, 2026
POWER TRAIN, ENGINE
VEHICLE: 2021 GMC Yukon, 5.3L V8 (L84). VIN: [XXX]. Mileage at failure: approximately 88,000. Component: Engine. INCIDENT DATE: XXX While I was driving on a highway, the engine began to misfire and I heard a ticking noise. The check engine light then began flashing, indicating a severe misfire. I pulled off the highway immediately to a rest area. The vehicle was towed to a GMC dealer. The dealer's diagnosis suspected failed valve lifters, and the repair orders call for a misfire diagnosis with the Bank 1 cylinder head removed, and replacement of the camshaft, lifters, and related parts. This failure caused sudden loss of engine performance at highway speed. The engine began smoking. My family and I were in the vehicle, and we were fortunate there was a safe place to stop. I believe this is a known defect. GM Service Bulletin PIP5776, "Misfire Due to Collapsed Lifter," covers 2021 GMC Yukons with the 5.3L L84 engine. It describes a misfire with a bent pushrod leading to a collapsed lifter or a lifter that comes apart, and it attributes the cause to an internal lifter concern. Many other owners of GM V8 trucks and SUVs have reported the same failure, and a class action over the AFM/DFM lifters has been pending against GM in federal court in [XXX] since 2021. I bought this vehicle new and have maintained it. This is the second time this vehicle has left my family stranded on a highway. In 2024, a separate known issue left us, including three children under [XXX], on the side of a major highway about 7 hours from home. GM repaired that issue. For the current failure, GM has not agreed to cover the repair. It has offered $5,951.39 toward an engine replacement, which would leave me responsible for $13,886.59 plus teardown labor. I am filing this complaint so NHTSA is aware of this failure, which can cause sudden loss of power on the highway. GM case number: XXX. Dealer: Fred Beans Buick GMC, [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
#11772468October 20, 2026
SERVICE BRAKES
Our 2021 GMC Yukon Denali has repeatedly experienced sudden, violent braking and apparent rear-wheel lockup without the driver applying the brakes. These incidents occur without warning at highway speeds, moderate speeds, and in traffic. The vehicle abruptly decelerates, fishtails, loses stability, and produces smoke. The wheels have locked severely enough to leave skid marks on the roadway. This creates an immediate risk of losing control or being struck by another vehicle. We took the Yukon to Alpine Buick GMC on October 12, 2026. After eight days, the dealership reported that it could not reproduce the malfunction. However, its written findings confirm that an engineering case was opened and GM engineering recommended replacing the transmission valve body based on data collected from other vehicles with related concerns. The dealership proposed approximately $3,300 in repairs without providing diagnostic evidence establishing that the valve body was definitively responsible or that replacement would resolve the dangerous condition. We declined the repair and paid $229 for diagnostics. GM recalls 24V797 and 26V085 address transmission valve failures capable of causing unexpected rear-wheel lockup. Although our gasoline-powered Yukon is excluded from these recall populations, it is exhibiting similar dangerous behavior, and GM engineering has recommended replacement of the same type of component. Exclusion from a recall based on VIN does not establish that a vehicle is free from a similar safety defect. We request that NHTSA investigate whether this failure extends to 2021 gasoline-powered Yukons and other GM vehicles outside existing recall populations. This is a recurring, unpredictable loss-of-control hazard that could result in a serious or fatal collision. It has come very close on E470 in the center lane at 75 mph with cars in all positions around us. Do you want YOUR family in one of the cars around us?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771934October 18, 2026
ENGINE
After the original engine failed the recall inspection, it was replaced as part of GM's recall program at 40k miles. At 50k miles with the new engine (so only 10k miles into the new engine), the engine completely locked up and shut down while my son was driving the car on the interstate. We had to get it towed to the nearest dealership, and two weeks later, we are still waiting on the engine to be replaced again under warranty. I have completely lost faith in this car as I will now be on my third engine in 50k miles, and it is very dangerous if this thing can just shut down again while driving as they clearly have not solved the issue of these failing engines.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771545October 16, 2026
POWER TRAIN
I believe it’s a transmission. While driving down the interstate and the car just won’t get up and go like it should, and I’m gonna get rear ended. I’ve I’ve taken it to the dealership three or four times. I keep telling me nothing’s wrong.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771549October 16, 2026
ENGINE
Was operating Yukon on st route 5 doing 55mph when the Yukons engine blew up and the vehicle shut down on me in the middle of the road.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771584October 16, 2026
POWER TRAIN, ENGINE
Bought 2021 GMC Yukon Denali new. Transmission failed at 70,000 miles. Engine has now failed at 111,000 miles. Both diagnosed at Capital GMC Atlanta, GA. Cost to replace transmission $8k (GMC paid half). Cost to replace engine $12k (GMC offered no assistance). Engine failure not related to current engine recall/investigation on GMC 6.2L V8 engines. This failure was on the top vs on the bottom (current recall).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771604October 16, 2026
POWER TRAIN
We have 42000 miles on this truck and bought 1 year old. Unit has been maintained well and looks new. Recently had the 10 speed transmissions fluid changed under normal maintenance. It was not burnt, turning more burgundy and dealer said it was a good and proper choice. Afterwards we noted a shudder and thought they made error or forgot to tighten something. Took truck back in for additional fluids and they had driveline associate drive. He said torque converter was going bad, and also warning these transmissions go bad unexpectedly and lock up. We have GMPP EXTENDED WARRANTY. Dealer requested replacement of torque converter and warranty required Field Tech due to price of repair. Field Tech drove truck, found metal in fluid and pan, and declined warranty repair and suggested more time was required. Essentially in hopes to push truck out of warranty coverage.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771762October 16, 2026
STRUCTURE:BODY, ENGINE, SEATS
My engine catastrophically failed and caught on fire. This was the second engine that was related to the recall that was replaced once at 21,000 miles
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11771021October 14, 2026
ELECTRICAL SYSTEM, ENGINE
While driving my vehicle, i noticed no sound coming from infotainment, signaling or lights being able to turn on. After pulling over at the nearest gas station, i parked and turned the vehicle off and waited for 30 minutes. Soon after that time, i turned the vehicle on and sound came back. However, i noticed the fuel management system begin to soon immediately kick in hard and loud while i started to drive away. This caused a major concern because i was with my family and didn’t know if ok we were going to be able to make it to my daughter’s softball tournament and home safely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11771206October 14, 2026
FUEL/PROPULSION SYSTEM
My 2022 GMC Yukon suffered a complete failure and open circuit of the Fuel Pump Power Control Module, causing the vehicle to fail to start. This is the exact defect covered under GM Recall N252516900/N262558690. However, GM is refusing to reimburse the repair because they have arbitrarily excluded my VIN from the recall population. GM is failing to recall all affected vehicles experiencing this safety hazard.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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