2021 GMC Yukon problems and complaints
Owners have filed 329 complaints with NHTSA about the 2021 GMC Yukon. The most-reported areas: Engine (180), Power Train (51), Fuel/Propulsion System (44).
Key takeaways
- 329 owner complaints on file with NHTSA.
- 9 involve a crash, 0 a fire, 9 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 180 | 55% |
| Power Train | 51 | 16% |
| Fuel/Propulsion System | 44 | 13% |
| Engine And Engine Cooling | 32 | 10% |
| Electrical System | 30 | 9% |
| Unknown Or Other | 21 | 6% |
| Forward Collision Avoidance | 19 | 6% |
| Air Bags | 18 | 5% |
| Fuel System | 12 | 4% |
| Gasoline | 12 | 4% |
| Service Brakes | 11 | 3% |
| Steering | 11 | 3% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 GMC Yukon SUV 4WD | 4/5 | 4/5 | 5/5 | 3/5 |
| 2021 GMC Yukon SUV 2WD | 4/5 | 4/5 | 5/5 | 3/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine - filed 2026-09-21
I am filing this complaint regarding severe, excessive oil consumption in my 2021 GMC Yukon equipped with the 6.2L V8 engine (VIN: [XXX]). The vehicle is consuming oil at an accelerated and hazardous rate. Specifically, the engine oil level drops completely below the viewable crosshatches on the oil dipstick well befor...
Fuel/Propulsion System - filed 2026-09-21
My 2021 GMC Yukon has approximately 36,900 miles. On September 12, 2026, the vehicle was at an authorized GMC dealership and passed a state safety inspection. On September 19, 2026, the check-engine warning light illuminated and I returned to the dealership. The dealer performed diagnostic testing and told me the fuel ...
Engine - filed 2026-09-15
The contact owns a 2021 GMC Yukon. The contact stated that while his wife was driving 65 MPH on the highway at higher speeds, the vehicle shuddered abnormally. The check engine, ECU, and traction control warning lights illuminated, and the message "Shut off Vehicle as soon as Possible" was displayed. The contact's wife...
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More for the 2021 GMC Yukon
Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.