2021 Chevrolet Suburban problems and complaints
Owners have filed 207 complaints with NHTSA about the 2021 Chevrolet Suburban. The most-reported areas: Engine (92), Power Train (40), Fuel/Propulsion System (22).
Key takeaways
- 207 owner complaints on file with NHTSA.
- 6 involve a crash, 1 a fire, 5 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 92 | 44% |
| Power Train | 40 | 19% |
| Fuel/Propulsion System | 22 | 11% |
| Electrical System | 20 | 10% |
| Unknown Or Other | 14 | 7% |
| Engine And Engine Cooling | 11 | 5% |
| Forward Collision Avoidance | 11 | 5% |
| Fuel System | 10 | 5% |
| Gasoline | 9 | 4% |
| Service Brakes | 9 | 4% |
| Exterior Lighting | 7 | 3% |
| Seat Belts | 7 | 3% |
One complaint can name several components, so shares add up to more than 100%.
Parts for the 2021 Chevrolet Suburban
GarageDex's verified specs for this car. Each Buy button searches Amazon for that exact part.
- Battery
- Engine oil
- Oil filter
- Engine air filter
- Wiper blades
- Headlight bulb
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| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Chevrolet Suburban SUV 4WD | 4/5 | 4/5 | 5/5 | 3/5 |
| 2021 Chevrolet Suburban SUV 2WD | 4/5 | 4/5 | 5/5 | 3/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Engine - filed 2026-11-03
On August 25, 2026, I was driving a chevrolet 2021 with less than 60K miles on it on a double lane road when I came to a red light, the car did not move when the light turned green, I put the car on park then drive again and it completely shut down. Prior to this there was no lights showing any issues with the car. It ...
Power Train - filed 2026-10-30
Shuddering and vibration between 25-40mph during low acceleration. Seems to be getting worse. Have an appointment with a dealership to do a diagnostic and can upload that information later. Service advisor suggested that it is an extremely common problem in my vehicle and very expensive to fix.
Unknown Or Other,engine - filed 2026-10-29
In the evening I was driving home locally and noticed a slight lurch in the car when coming to a complete stop at the stoplight. From there I proceeded into my neighborhood. There was a sudden and very loud bang sound like metal and an explosion. Immediately the engine failed and my vehicle stopped in the middle of the...
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More for the 2021 Chevrolet Suburban
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.