VehicleVerdict

2018 Infiniti Q50 problems

Verdict · NHTSA data

A typical year for this model

The 2018 Infiniti Q50 sits mid-pack among Q50 years: 64 NHTSA complaints against a model median of roughly 56, with 3 recalls and no defect investigations.

Engine leads the complaint categories with 19 reports (30% of the total).

64

NHTSA complaints

3

Recalls

0

Investigations

3

Crash-involved

1

Fires reported

0

Injuries

0

Deaths

—

NCAP overall

How does 2018 compare to other Q50 years?

Q50 NHTSA complaints by model year, 2018 highlighted255 complaints2014: 255 complaints2015: 181 complaints2016: 57 complaints2017: 91 complaints2018: 64 complaints2019: 55 complaints2020: 5 complaints2021: 6 complaints2022: 1 complaints2023: 9 complaints
Q50 NHTSA complaints by model year, 2018 highlighted. Red bars are years to avoid.

See all Q50 years to avoid →

What are the most common 2018 Infiniti Q50 problems?

ComponentComplaintsShare
Engine1930%
Electrical System711%
Airbags711%
Other69%
Fuel System69%
Driver Assistance46%
Brakes35%
Transmission35%
Tires & Wheels35%
Speed Control23%
Steering12%
Body & Structure12%
Lighting12%
Seats12%

Does the 2018 Infiniti Q50 have recalls?

3 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

24V470000TransmissionJune 21, 2024 · 7,222 units

Defect

Nissan North America, Inc. (INFINITI) is recalling certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.

Consequence

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. Both scenarios can increase the risk of a crash.

Remedy

Dealers will replace the driveshaft, free of charge. Owner notification letters were mailed August 13, 2024. Owners may contact INFINITI's customer service at 1-800-662-6200. INFINITI's numbers for this recall are R24A5 and R24A7.

19V654000Driver AssistanceSeptember 12, 2019 · 1,228,830 units

Defect

Nissan North America, Inc. (Nissan) is recalling certain 2018-2019 Nissan Altima, Armada, Frontier, Kicks, Leaf, Maxima, Murano, NV, NV200, Pathfinder, Rogue, Rogue Sport, Sentra, Titan, Titan Diesel, Versa Note and Versa Sedan vehicles, as well as Infiniti Q50, Q60, QX30 and QX80 vehicles. Additionally included are 2019 Nissan GT-R and Taxi and Infiniti QX50, QX60, Q70, Q70L vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."

Consequence

The lack of an image in the back-up camera display increases the risk of a crash.

Remedy

Nissan will notify owners in phases, having dealers update the back-up camera settings software, free of charge. The recall began November 11, 2019 and all affected VINs should be activated. Owners may contact Nissan customer service at 1-800-867-7669 or INFINITI customer service at 1-800-662-6200.

17V476000Electrical SystemJuly 27, 2017 · 14,192 units

Defect

Nissan North America, Inc. (Nissan) is recalling certain 2016-2018 Infiniti Q50 and 2017 Infiniti Q60 vehicles equipped with a 2.0L engine. Incorrect Fuel Pump Control Module (FPCM) software may allow the fuel level in the main tank to be too low to supply fuel to the engine, causing the engine to stall while driving.

Consequence

An engine stall can increase the risk of a crash.

Remedy

Nissan will notify owners, and Infiniti dealers will reprogram the Fuel Pump Control Module (FPCM) with corrected software, free of charge. The recall began August 29, 2017. Owners may contact Infiniti customer service at 1-800-662-6200.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

“THE CAR CAUGHT FIRE UNDER THE HOOD AND COMPLETELY BURNED UP IN THE PARKING LOT AS I WAS EXITING THE VEHICLE UPDATED 12/4/18*JB”

Complaint filed with NHTSA · Engine · July 18, 2018 · fire

“ 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…”

Complaint filed with NHTSA · Electrical System · January 12, 2026

“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…”

Complaint filed with NHTSA · Airbags · June 8, 2026

“Car has white smoke coming from the exhaust and the oil level keeps decreasing. Car stalls and takes time to accelerate P0106 code pops up from engine. There’s a rattle and whine noise coming from the engine bay. Also the gas was stuck accelerating. Had to switch the car to neutral so it does…”

Complaint filed with NHTSA · Fuel System · January 3, 2025

“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…”

Complaint filed with NHTSA · Other · November 11, 2025

2018 Infiniti Q50 — common questions

Is the 2018 Infiniti Q50 reliable?

It is close to typical for the Q50: 64 NHTSA complaints, 3 recalls, and no investigations on file.

What are the most common 2018 Q50 problems?

According to NHTSA complaint data, the leading problem areas are engine (19 complaints), electrical system (7 complaints), airbags (7 complaints).

Does the 2018 Infiniti Q50 have recalls?

Yes — NHTSA lists 3 recall campaigns affecting the 2018 Infiniti Q50. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Which Infiniti Q50 years should you avoid?

Based on complaint rates and open investigations, the Q50 years to avoid are 2014, 2015, 2017. The cleanest record among Q50 years belongs to 2022.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.