2021 GMC YUKON Complaints

View complaints related to 2021 GMC YUKON. The complaints found here are submitted by actual consumers with first hand experience. There are more than 520 complaints submitted for the 2021 GMC YUKON. You can submit your own complaint to the NHTSA or call the Hotline, Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153.

  • 2021 GMC YUKON
    - Raeford, NC

    The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. No warning light was illuminated. The vehicle was towed to the dealer, who determined that the engine needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included in the recall. The manufacturer was made aware of the failure and advised the contact to file a complaint with the NHTSA Hotline. The failure mileage was approximately 101,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 GMC YUKON XL
    - CASPER, WY

    Driving at 55MPH and suddenly the car starts to shack and warning/notification lights copme up on the dash. Check Engine Traction Control Service light Suspension service Was able to drive it to GMC dealership nearby 2.6Mile

    Source: NHTSA WEB SITE
  • 2021 GMC YUKON XL
    - Evans, GA

    The contact owns a 2021 GMC Yukon XL. The contact stated while driving 80 MPH, the engine was running unusually rough, and there were several unknown warning lights illuminated. The vehicle was taken to an independent mechanic and was diagnosed with a fractured valve push down lifter. The contact was informed that the valve push down lifter needed to be replaced. The vehicle was not repaired. The contact was advised to take the vehicle to the dealer for assistance. The vehicle was towed to the dealer where it was diagnosed with a fractured valve push down lifter and a failed cam shaft. The contact was informed that the valve push down lifter and the cam shaft needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure but provided no assistance. The contact referenced an unknown recall repair, which had a similar failure description, however the VIN was not associated with the recall. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 109,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 GMC YUKON XL
    - Apopka, FL

    The contact owns a 2021 GMC Yukon XL. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed failures with the lifters and camshaft, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); but the VIN was not included. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 100,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 GMC YUKON
    - North Reading, MA

    I am having an oil burning issue in my 2021 GMC Yukon Denali 6.2L engine and understand that some Yukon's have been recalled for this, but not all. GMC directed me here. My check engine light went on last week and when it was plugged in it showed critical oil life despite being well below my next scheduled oil change (which has also resulted in me having a Rejected state inspection sticker due to this being in the computer at time of inspection). I am concerned that not all Yukons have been recalled but I'm clearly having the same issue as others as this is only a 4 year old vehicle and otherwise in very good condition. This would be available for inspection by you at any time. Also, this issue has been confirmed with the dealer but my VIN is not part of the current recall. Is there a way to get this VIN added to the recall for further inspection/resolution at GM?

    Source: NHTSA WEB SITE
  • 2021 GMC YUKON
    - Compton, CA

    The contact owns a 2021 GMC Yukon. The contact stated that while driving at various speeds, the Forward Collision Avoidance system erroneously activated, causing the vehicle to suddenly slow down. The vehicle was taken to the local dealer who serviced the Forward Collision Avoidance system camera and sensors. No further information was available. Additionally, while driving at highway speeds, there was a knocking sound coming from the engine compartment, and the seat restraint failure message was displayed. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 20,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 GMC YUKON XL
    - Milton, FL

    My lifters collapsed and camshaft got damaged AND my cylinder in the bottom of my engine failed also. I know there is a recall for engine failure on the exact year make and model as my vehicle, the only difference is the liter engine. Mine and my 3 children’s safety were all put at risk when we were left stranded on the side of the road 6 hours from home The problem was inspected by GMC themselves and the tech admitted to this being a big problem with motors like mine yet they are offering ZERO help to make it right with me because my liter engine isn’t on the recall list even though many are acknowledging its happening with the 5.3 liter engines as well. My engine has failed as part of GMCs negligence. There were absolutely zero warning signs prior to this happening

    Source: NHTSA WEB SITE
  • 2021 GMC YUKON XL
    - Kimball , MN

    Vehicle would not go in Reverse. Rear tires locked up. When I went forward an error came up "Reduce acceleration" and went into limp mode while driving down the highway and shifted hard and almost caused an accident. Bought into dealer and they found that it needs a valve body assembly Part which is on backorder with no ETA. Currently been waiting for a month and still no ETA on Part. This should be a recall for 5.3L 10 speed. .

    Source: NHTSA WEB SITE
  • 2021 GMC YUKON
    - Richmond, TX

    The contact owns a 2021 GMC Yukon. The contact stated that there was an abnormal sound coming from the vehicle. While the contact’s wife was driving at undisclosed speeds, the vehicle stalled. The driver was able to coast off the roadway. The vehicle was taken to the local dealer, where it was diagnosed that the camshaft needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was slow to start. The contact stated that after refueling the vehicle, the vehicle failed to start. The vehicle was towed to the local dealer, where it was diagnosed that there was an oil pump failure. The vehicle was repaired, but the failure persisted. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The vehicle was taken to the local dealer, where it was diagnosed that the engine needed to be rebuilt. The vehicle was repaired, but the failure recurred. The contact stated that the rod bearing had failed, and the engine seized. There was no warranty on the vehicle. The vehicle was repaired, but there was an issue with the payment. The manufacturer was contacted, and informed the contact that the dealer was in charge of the process. The failure mileage was approximately 120,000.

    Source: HOTLINE VEHICLE OWNERS QUESTIONNAIRE
  • 2021 GMC YUKON
    - Haslett, MI

    The vehicle’s air suspension system failed multiple times, followed by failures in the rod and/or crankshaft engine components. Currently, the vehicle is also experiencing engine warning lights and reduced propulsion issues. The vehicle is currently at the dealership and is available for inspection upon request. The loss of propulsion and engine failures create a serious safety hazard on the road, as the vehicle can unexpectedly lose speed or stop functioning, increasing the risk of rear-end collisions or being stranded in dangerous traffic situations. The dealership has explicitly stated that the vehicle is not safe to drive due to the risk of potential accidents. Yes, the dealership has confirmed the air suspension failure and the engine component damage. However, they have not yet been able to identify the exact cause of the current reduced propulsion issue despite multiple service attempts. The vehicle has been inspected multiple times by the dealership’s service department. Prior to the failures, engine warning lights and other dashboard warning signals appeared. These warning indicators first appeared after the air suspension failure and before the reduced propulsion issue emerged. These issues closely match the conditions described in the recent GMC recall; however, our specific vehicle model was not included in the recall. We believe this might be a systemic issue and request that NHTSA investigate whether the recall scope should be expanded.

    Source: NHTSA WEB SITE