2021 GMC YUKON Complaints

I was traveling on the highway and the vehicle started to jolt, sputter and speed acceleration was reduced in a highly congested area with little room to maneuver. I had to quickly shift lanes and get off at the first exit I could as I figure out what the issue was. I immediately contacted my Dealership and they were able to get me an emergency appointment so my vehicle could be inspected that day. After the Dealers analysis they said that a lifter needed to be replaced. I have a brand new vehicle with less than 8,611 miles on it. The lifter issue puzzled me so I went to the GMC Yukon message and sure enough there are ALOT of 2021 Yukon/Tahoe owners that have had this exact same issue with even worse stories than mine.

I was driving 30 mph when the car went into neutral and rolled to a stop. When I put on the brakes the engine shut off and it went into park. It would not restart or shift out of park . I was stuck in an active busy road. The car was towed to the dealer. They said it was a problem with the BCM. GMC had put out a bullletin which was to reprogram the BCM. My concern is that if this had happened on a busy interstate in traffic at highway speeds the results could have been fatal.

On Friday October 22, 2021 around 7:20am as I was driving my children to school I was driving around 40 mph when suddenly I received an alert on the dashboard saying “brake system fail”, I then proceeded to brake to make sure my breaks were working when I noticed they did not work. I then started pumping the gas pedal repeatedly to make the vehicle stop. My car was not stopping and my children and I panicked and started crying. As I was getting closer to a vehicle and ready to crash I swerved the vehicle to the right where it was just an empty lot. I continue to press and pump the brakes until the vehicle came to a complete stop. I took pictures of the dash board once the vehicle was completely off. My Vehicle was towed to my house shortly after. I refuse to drive that vehicle after the terrible experience that jeopardize the life of my children and myself. We have suffered emotional distress.

The contact owns a 2021 GMC Yukon. The contact stated while stopped on the highway a Crown Victoria crashed into the rear driver's quarter panel and a Honda Civic crashed into the front bumper of the vehicle. The air bags failed to deploy. There was a police report filed. There was no reported fire. The contact sustained pain and medical attention was provided. The vehicle was towed to an independent mechanic. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified but, no further assistance was provided. The failure mileage was approximately 7,000. The contact stated there was visible damage to the rear axle and fuel tank.

Engine failed on my new vehicle. GM is aware of faulty lifters produced over roughly a 3 month period. My vehicle has been confirmed to have those faulty batch lifters. At this time GM is only replacing lifters on the side of the engine that failed. The local dealership is having 2-3 of these come into the service shop per day. This is a major problem and I am being told it could be 2 months before I get my vehicle back. When I get the vehicle back I want it fixed properly and safe to drive. I don't want my family broken down on the side of the road due to GM knowingly not replacing a faulty product let alone the inconvenience of not having the vehicle again for repairs.

A/C system draining into drivers side floor area. Water from the A/C system is not draining properly and causing water to collect under the carpet on drivers side, leading to mold, bacteria and potentially harmful to people with respiratory issues. After researching various Internet forums, this seems to be a common issue in 2021 Yukon and Tahoes. The dealership will be investigating the issue tomorrow.

GMC Yukon Denali SUV 2021, push rods and lifters in motor are bad, this could have cause an accident due to SUV stopping in traffic or on the highway. Please help with this safety issue. The GMC Denali SUV 2021 only has 7000 miles on it, it new. I thank you in advance for you support. Regards George L Patterson

The contact rented a 2021 GMC Yukon. The contact was driving at 75mph, the contact stated they felt the steering wheel was moving independently causing the vehicle to veer in the opposite direction. Both hands were required in order to control the steering wheel. The contact attempted to avoid a large puddle, the vehicle independently veered to the right causing a crash with a curb and crossed an exit ramp which caused the vehicle to crash then into an embankment and into a ditch. This caused damage to the front passenger side tire of the vehicle. The side air bags did deploy but not the front driver or passenger side airbag did not deploy. No warning lights illuminated from the vehicle. The medical treatment was at the scene in which they checked the contact father in- law and their baby and took them to the hospital by ambulance with the contact's wife who was also in the vehicle. The contact also sustained a cut from the airbag being deployed, the contact wife also had bruises to their upper chest and leg, The contact father-in-law was also injured with his upper body and also a small rash on their face when the side airbag was deployed, as well the contact mother-in-law has complained of a headache. A police report was filed. The vehicle was towed from the scene to an impound lot. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximate 16,000.

The contact owns a 2012 GMC Yukon equipped with Cooper Tires, Tire Line: Discoverer HTP, Tire Size: 275/55/R20, DOT number: Not Available. The contact stated that while inspecting the tires, the rear driver’s and passenger’s side tires had visible bulges. The tires were not replaced. The dealer was not made aware of the failure. The contact attempted to contact the manufacturer but was not able to reach a live representative. The failure mileage was 116,224.The VIN was not available.

Make left turn and distracted by kids in the back. Looked back and felt a crash. Collided with a traffic signal pole and caused major/total damage to vehicle. Driver side airbag DID NOT deploy causing injury to neck, shoulder, and lower back.