repaired · 2026 Q2
Driveline: driveshaft
Risk. A broken driveshaft can result in a loss of drive power, or a vehicle roll away when the vehicle is in park without the parking brake applied.
2018 Infiniti Q50Problems, recalls & complaints
NHTSA has logged 44 owner complaints about the 2018 Infiniti Q50, most often about the engine. It is covered by 3 safety recalls, and for recall 24V-470 the manufacturer reports only 39% of affected cars repaired.
Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through September 22, 2026. Updated daily. Photo: Kevauto, CC BY-SA 4.0.
Complaints by system
Where the 2018 Infiniti Q50 has problems
44 complaints grouped by the system owners reported.
17Engine1 crash/fire/injury
9Air bags
6Fuel/propulsion system
6Electrical system
3Wheels
3Back over prevention
3Power train
2Engine and engine cooling
2Vehicle speed control
109 other systems2 crash/fire/injury
| System | Complaints | Crash, fire or injury |
|---|---|---|
| Engine | 17 | 1 |
| Air bags | 9 | 0 |
| Fuel/propulsion system | 6 | 0 |
| Electrical system | 6 | 0 |
| Wheels | 3 | 0 |
| Back over prevention | 3 | 0 |
| Power train | 3 | 0 |
| Engine and engine cooling | 2 | 0 |
| Vehicle speed control | 2 | 1 |
| 9 other systems | 10 | 2 |
Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.
3 recalls
2018 Infiniti Q50 recalls and how many were fixed
Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.
repaired · 2021 Q1
Sensing system: camera
Risk. The lack of an image in the back-up camera display increases the risk of a crash.
repaired · 2018 Q4
Electrical system: software
Risk. An engine stall can increase the risk of a crash.
Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Infiniti.
Best & worst years
2018 vs. every other Q50 year
Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Q50 median. How we score
'14'15'16'17'18'19'20'21'22'23
- Avoid
- Caution
- Solid
- Best
- Not rated
NHTSA crash tests
2018 Infiniti Q50 safety ratings
2018 Infiniti Q50 4 DR AWD in NHTSA's New Car Assessment Program. Photos are from NHTSA's crash tests.
- Rollover: 5 stars (9.7% risk)
- Stability control: Standard
- Forward collision warning: Optional
- Lane departure warning: Optional
In owners' words
What Q50 owners report
Recent engine complaints filed with NHTSA, shortened. Personal details are removed.
Filing this complaint regarding a safety-related defect involving the turbocharger system on my 2018 INFINITI Q50. The vehicle has approximately 46,000 miles and is 8 years old. INFINITI/Nissan has acknowledged through its own Technical Service Bulletins (TSBs) that turbocharger failure on…
The serpentine belt on my 2018 Infiniti Q50 Sport became contaminated with oil immediately after dealer turbo replacement at the end of August 2025, causing the belt to slip, shred, and be pulled into the engine. This resulted in sudden loss of essential engine functions and poses a significant…
Within one month of purchase, the airbag warning light illuminated and has remained on continuously. A separate dealership later confirmed the airbag system is defective and may not deploy in an accident. This is a serious safety defect that was not disclosed to me at the time of sale. Additional…
Own a 2018 Q50?
Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.