GMC Yukon Complaints (2021)

345 consumer complaints on file.

#11648808March 17, 2025
FUEL/PROPULSION SYSTEM
Vehicle engine stalled while driving in school parking lot. Safety concern as car when from “R” to “N” while backing up (2x). Engine would not turn on afterwards. Vehicle code P129F showed trouble with fuel pump power flow control module.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647800March 12, 2025
POWER TRAIN
Main Value body goes out when it wants to in the Transmission . no replacement parts available . Been 6 week , When this value goes out while go down the highway there is no pull to the wheels
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647571March 11, 2025
ELECTRONIC STABILITY CONTROL (ESC), ENGINE
The contact owns a 2021 GMC Yukon. The contact stated that while his wife was driving at an undisclosed speed, the vehicle lost automotive power. The Electronic Stability Control warning light was intermittently illuminated. The vehicle was towed to a local independent mechanic where it was diagnosed with a spun rod bearing failure; however, further investigation was needed. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 102,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647336March 10, 2025
ENGINE, FORWARD COLLISION AVOIDANCE: WARNINGS, SERVICE BRAKES
The component that failed was the Camshaft and Lifters in the Engine - My safety and others was put at risk because while going 45mph, I suddenly lost forward moving power and couldn't go faster than 35 - braking power was sketchy and only responsive when pumped. - I received the following errors on my dash "Service ESC" "Service Traction Control", Reduced Acceleration Drive with Care", "Forward Collision System Unavailable", "Service Emission System" the vehicle would shudder violently- this problem has been confirmed and corrected at a huge expense (see bill) -
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646769March 6, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2021 GMC Yukon. The contact stated that upon his wife attempting to start the vehicle, the vehicle failed to start as intended. The contact's wife stated that she had previously heard an abnormal rattling sound coming from the engine compartment in the days prior to the failure. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the oil pump, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact stated that there had been a partial engine rebuild performed on the vehicle several months prior to the failure. The manufacturer was not notified of the failure. The failure mileage was 140,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646087March 3, 2025
ENGINE
What component or system failed or malfunctioned, and is it available for inspection upon request? - Engine Failure, on November 8, not certain engine is available for inspection -2nd Engine Failure, February 27, engine being replaced now and can be inspected How was your safety or the safety of others put at risk? -first engine failure happened on highway interchange without warning and stranded the vehicle on a busy highway with 6 passengers (5 of them children) at risk -second engine failed in the middle of an unprotected intersection, and would have caused an accident if other drivers were unable to brake Has the problem been reproduced or confirmed by a dealer or independent service center? -both engines discovered metal debris in the oil pan Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? -yes, vehicle was inspected by GMC dealership both times Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? -no warning lamps appeared, a message was displayed to restart engine as the engine was shut down while in Drive.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645579February 28, 2025
ENGINE
at 60860 my first engine went out General Motors offered no help i have extended warranty it took 3 months to get my Yukon back now 40000 later 2nd engine goes out cannot get a dealer to touch excuse after excuse tried to contact General Motors nobody will talk to me
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645453February 27, 2025
ENGINE, UNKNOWN OR OTHER
Engine or something is making a noise every time turned on and now while turning off
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645437February 27, 2025
ENGINE
Motor blew up
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11645019February 26, 2025
ENGINE
Hello, I am writing this complaint because i bought this 2021 GMC Yukon new from King GMC in Loveland CO. The engine seized up on me while driving once turned off, i was able to get it going and now it has done it again but this time no luck getting it going, Maintenace has always been maintained and up kept, and the more i read about this i am finding out its a problem that everyone is getting with this 6.2 litter engines. The dealer wants to charge me 30k to change the engine and radiator and cooler lines on an already ridiculous overpriced vehicle. I am not sure why there hasn't been a recall issued perhaps because it involves a new engine? over700k people have the same problem. if thier is something you guys can do i dont think its correct the customers have to pay the dues on an unsafe bad design engine. Thank you for your time
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11643134February 17, 2025
ENGINE
All lifters had to be replaced at 5,315 miles on 7/28/21 #7 Piston had to be replaced at 42,431 miles on 5/24/24 This vehicle has the 6.2 L V8 L87 engine that is part of NHTSA Investigation # PE25001 I am reaching the 5yr/50,000 mile drivetrain warranty and am concerned that this engine could have recurring problems.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11642831February 14, 2025
ENGINE
Engine locked up while driving and left me stranded in the cold for hours
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641348February 7, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Complete failure of infotainment system in cold weather. This is a safety concern because most controls are operated through the infotainment system and can de distracting to a driver who is trying to operate all features of a vehicle while driving. For instance having cold children in the rear seats and not knowing if the heat is activated in the rear of the vehicle and at what temperature or if it is blowing at all. There is no manual indication of rear climate. This is already a safety bulletin for 2021 Yukon that for some reason my vehicle is not included in. GM recall number: N212327470 I want my vehicle included since this is a safety concern ( see above ) and this should be a real recall rather than a notification or safety bulletin.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11641343February 7, 2025
LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Font Camera failure. Front camera controls many "safety features" which fail without the camera. Vehicle under mileage warranty amount but not under time warranty ( 3 years ). Camera only covered under bumper to bumper.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11640429February 3, 2025
ENGINE
In September 2023, mere months after purchasing this vehicle, I was driving on the Mountain Parkway in Eastern Kentucky. Traveling the 70 mile hour speed limit, everything in the vehicle shut down, including my ability to use my breaks. Luckily, I was able to safely coast to the side of the road, which left me quite vulnerable as patrons passed at 70+ miles per hour. There were no advanced warning such as lamps, messages, or other symptoms of a problem. I had the vehicle towed to Hutch Chevrolet in Paintsville, KY where they indicated to me that the crankshaft locked up due to a crank bearing failure. They had to replace the engine and I was out of pocket $12,631.79.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11639256January 29, 2025
ENGINE
Had to replace an engine due to a main bearing failure, not the connecting rod failure thats being investigated. We pulled into the driveway with zero issue and zero suspect of issue, changed the oil as routine 5k miles, went to start it, and it blew the 400A starter fuse. It friction welded the crank to the bearing when I ahit the engine off. It looked like it flaked the coating off the bearing, then due to the recommended 0-20 thin oil, it didn't have the proper protection for metal on metal. Hoping that the main bearings get added to this investigation, because they are the same coating. Same manufacturer.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638715January 27, 2025
ENGINE
The contact owns a 2021 GMC Yukon. The contact stated that while driving at 60 MPH, the vehicle's engine shut off without warning. The contact was unable to start the vehicle and was left stranded on the roadway for hours. The contact finally managed to have the vehicle towed to a dealer where they diagnosed the vehicle with a defective engine main bearing(engine failure). The vehicle remained in the dealer's possession where it had yet to be repaired. The manufacturer was notified of the failure but offered no assistance. The failure mileage was 28,450.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11638168January 23, 2025
ENGINE, FUEL/PROPULSION SYSTEM
My family and I found ourselves stranded on the interstate when our engine failed while we were driving on I-10 at 75 mph. The connecting rod bearing got lodged in the engine, causing it to seize. This put us in an extremely dangerous situation. I believe these vehicles should be recalled. I've been in discussions with GM to buy back the vehicle, but their leadership has declined my request. They are offering to replace the engine, but I do not want this vehicle back.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637876January 23, 2025
POWER TRAIN
Rear end locking up still after 3 attempts at repair. Concerned about an accident when the vehicle stops moving in traffic.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11637675January 22, 2025
ENGINE
At approximately 14,000 miles my 6.2L V8 engine had a lifter go bad on the truck. GMC covered this with warranty at the time. The truck seemed to perform well until I hit approximately 94,841 miles and then a lifter went bad again. I had an 85,000 warranty and this repair was not covered. I was quoted $6,500 to repair the truck by the dealer. I made a social media post and tagged GMC. GMC reached out to me directly and took $1,000 off of the repair and I paid $5,576.48 out of pocket to repair the lifters. GMC also offered an extended 2 year warranty on the engine at that point that is expires in September of 2025. I currently have 143,000 miles on the truck and my intent was to drive this truck for as long as humanly possible. I was told that this was designed to be a 500,000 mile truck. My engine is now burning approximately 2.5 to 3.5 quarts of oil between oil changes and I'm worried that there is something else wrong with the engine and that another lifter will go bad. I love my truck and can't afford another $6,500 to $10,000 repair. I sometimes get this car and other cars serviced for an oil change at the Mavis Auto in my neighborhood and the shop director who has been in the business has a friend who is a mechanic with GMC and he told me that his friend was given directive that if one lifter went bad 100% of the lifters, the housing and CAM shafts were to be replaced. (I'm not a mechanic so I may be missing some details here) Anyway - I've been informed about the NHTSA Investigation Into the V8 Engine in my truck which has opened my eyes to other mechanical defects associated with my truck. I'd like to make this report to protect myself and my investment. I do not want incur additional expenses related to manufacturer defects and I do not want to feel unsafe on the road with this vehicle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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