2021 Infiniti Q50 problems and complaints
Owners have filed 6 complaints with NHTSA about the 2021 Infiniti Q50. The most-reported areas: Vehicle Speed Control (2), Power Train (1), Engine (1).
Key takeaways
- 6 owner complaints on file with NHTSA.
- 1 involve a crash, 0 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Vehicle Speed Control | 2 | 33% |
| Power Train | 1 | 17% |
| Engine | 1 | 17% |
| Engine And Engine Cooling | 1 | 17% |
| Wheels | 1 | 17% |
| Air Bags | 1 | 17% |
| Structure | 1 | 17% |
| Forward Collision Avoidance | 1 | 17% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2021 Infiniti Q50 4 DR AWD | Not rated | Not rated | Not rated | 5/5 |
| 2021 Infiniti Q50 4 DR RWD | Not rated | Not rated | Not rated | 5/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Power Train,vehicle Speed Control,engine - filed 2026-09-21
In August 2026, while driving, the vehicle suddenly lost acceleration and engine power and would only travel at a very slow speed. The check engine light came on. The driver had to safely stop, turn the engine off, and restart it. After restarting, the vehicle temporarily regained acceleration and normal speed. This pr...
Engine And Engine Cooling - filed 2026-09-08
The contact owns a 2021 Infiniti Q50. The contact stated that while driving approximately 70 - 80 MPH and attempting to accelerate, the vehicle would accelerate but failed to exceed 10 MPH. The accelerator pedal had to be depressed to the floorboard for the vehicle to accelerate; however, the vehicle still failed to e...
Wheels - filed 2026-02-09
The contact owns a 2021 Infinity Q50. The contact stated that the vehicle was recently purchased from a dealer. When the vehicle was purchased, the tires were replaced. The vehicle was later taken to the dealer for maintenance, and while at the dealer, the contact was informed that there were nails in the tires and tha...
Diagnose it yourself
As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
More for the 2021 Infiniti Q50
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.