2018 Infiniti Q50: True Cost, Problems & Verdict
42 NHTSA owner complaints · 3 recalls · data-computed verdict. No opinions — public data only.
Reviewed by the MotorJury data desk · 2 sources · Last updated 2026-08-20
42 NHTSA owner complaints · 3 recalls · data-computed verdict. No opinions — public data only.
Complaints per year on the road: 5.25
Verbatim reports filed with the United States safety regulator (NHTSA) by owners of this exact model year. Public record.
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 manufacturer was not made aware of the failure. The failure mileage was approximately 34,000.
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. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure …
Odometer Fraud. The contact purchased a 2018 Infiniti Q50. It was discovered that there were three separate mileage discrepancies. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 50,370; however, at the time of registration, it was discovered that the mileage had been rolled back from 54,000 to 28,630 miles. The mileage before the vehicle was purchased was 47,650.
What the community is saying right now.
| Campaign | Component | Summary |
|---|---|---|
| 19V654000 | Back Over Prevention: Sensing System: Ca | Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, … |
| 24V470000 | Power Train:Driveline:Driveshaft | Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, an… |
| 17V476000 | Fuel System, Gasoline:Delivery:Fuel Pump | Nissan North America, Inc. (Nissan) is recalling certain 2016-2018 Infiniti Q50 and 2017 Infiniti Q60 vehicles equipped with a 2.0L engine. … |
EPA combined 23 MPG · estimated annual fuel cost $3,300
Re-priced automatically from your country's retail fuel, electricity and parts indices — change country in the bar at the top. Estimates; see methodology.
The most-reported issue in NHTSA complaint data is Engine (17 complaints in our indexed sample).
Our data verdict is BUY with a reliability score of 83/100, computed from 42 NHTSA complaints and 3 recall campaigns. See the verdict card for the top reasons.
Yes — NHTSA lists 3 recall campaign(s) for the 2018 Infiniti Q50, 1 of them touching fire, crash or stall risk, the most recent recorded 12/09/2019. Check this car's VIN at nhtsa.gov/recalls before you buy.
Fuel, maintenance band and depreciation — computed from public data in 10 seconds.
Open the true-cost calculatorComplaints & recalls: NHTSA ·
Fuel economy: EPA fueleconomy.gov ·
Scoring: our published methodology.
Maintenance bands are industry-average estimates (AAA Your Driving Costs, CarMD index) — labeled estimates, not measurements.
Last updated: 2026-08-20.