2018 Infiniti Q50 problems and complaints
Owners have filed 43 complaints with NHTSA about the 2018 Infiniti Q50. The most-reported areas: Engine (17), Air Bags (9), Fuel/Propulsion System (6).
Key takeaways
- 43 owner complaints on file with NHTSA.
- 1 involve a crash, 1 a fire, 0 reported injuries.
- Complaints are unverified owner reports; recalls are confirmed defects.
| Component | Complaints | Share |
|---|---|---|
| Engine | 17 | 40% |
| Air Bags | 9 | 21% |
| Fuel/Propulsion System | 6 | 14% |
| Electrical System | 5 | 12% |
| Unknown Or Other | 5 | 12% |
| Back Over Prevention | 3 | 7% |
| Power Train | 3 | 7% |
| Service Brakes | 3 | 7% |
| Wheels | 3 | 7% |
| Engine And Engine Cooling | 2 | 5% |
| Vehicle Speed Control | 2 | 5% |
| Seat Belts | 1 | 2% |
One complaint can name several components, so shares add up to more than 100%.
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 Infiniti Q50 4 DR AWD | Not rated | Not rated | Not rated | 5/5 |
| 2018 Infiniti Q50 4 DR RWD | Not rated | Not rated | Not rated | 5/5 |
Latest complaints, as filed
Owner-written and unverified by NHTSA.
Air Bags - filed 2026-09-22
Systemic defect front passenger seat occupancy sensor failure triggering an illuminated airbag warning light.
Air Bags,seat Belts - filed 2026-07-07
The contact owns a 2018 Infiniti Q50. The contact stated while driving at an undisclosed speed, the air bag warning light illuminated. The vehicle was taken to the dealer, where the contact was informed that the front passenger seat and passenger seat belt needed to be replaced. The vehicle was not repaired. The manufa...
Air Bags - filed 2026-06-08
The contact owns a 2018 Infiniti Q50. The contact stated that while driving at an undisclosed speed, the front passenger Occupant Classification System (OCS) sensor became inoperable. The vehicle was taken to the dealer, where it was diagnosed that the front passenger OCS sensor had failed and needed to be replaced. Th...
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More for the 2018 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.