2021 Acura RDX problems and complaints
Owners have filed 116 complaints with NHTSA about the 2021 Acura RDX. The most-reported areas: Unknown Or Other (31), Engine (23), Service Brakes (16).
Key takeaways
- 116 owner complaints on file with NHTSA.
- 3 involve a crash, 0 a fire, 1 reported injury.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Unknown Or Other | 31 | 27% |
| Engine | 23 | 20% |
| Service Brakes | 16 | 14% |
| Power Train | 13 | 11% |
| Air Bags | 11 | 9% |
| Visibility/Wiper | 10 | 9% |
| Electrical System | 10 | 9% |
| Structure | 10 | 9% |
| Vehicle Speed Control | 7 | 6% |
| Forward Collision Avoidance | 6 | 5% |
| Seats | 6 | 5% |
| Fuel/Propulsion System | 5 | 4% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Acura RDX SUV FWD | 5/5 | 4/5 | 5/5 | 4/5 |
| 2021 Acura RDX SUV AWD | 5/5 | 4/5 | 5/5 | 4/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Visibility/Wiper - filed 2026-10-12
Rear window shattered spontaneously twice. 9/12/24 & 10/11/26
Engine,fuel/Propulsion System - filed 2026-10-07
2021 Acura RDX has cold start, uses coolant and will stumble, limp mode approaching 2000 RPM. Vehicle will flash check engine light and then will go away when vehicle is restarted. Using search criteria noted TSB issued for same make model and year with an extended warranty being offered through TSB, 10 year 150,000 m...
Unknown Or Other - filed 2026-10-01
Acura Sunnyside in New Hampshire denied to repair my recall on my 2021 Acura RDX.
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More for the 2021 Acura RDX
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.