2018 Infiniti Q50 reliability

Is it reliable?

NHTSA's file on the 2018 Infiniti Q50 holds 43 complaints after 9 years, a rate of 5 per year. That is more complaints per year than most Q50 years here — over the median of the other years, which is 2. NHTSA has 3 recalls on file, including Driveshaft, Camera, and Fuel pump.

2014 Infiniti Q50
Photo by Mr.choppers, resized from the original. Wikimedia Commons CC BY-SA 3.0
Complaints

43

Per year

5

Recalls

3

Years on the road

9

What owners report

The complaints owners file most often name Engine (17 of 43), then Air bags (9) and Fuel and propulsion system (6). Those filings include 1 that reports a crash and 1 that reports a fire.

Next to 2017 and 2019

The 2017 Q50 has 62 complaints, 4 per year, and the 2019 has 30 complaints, 4 per year. The 2018 has more complaints per year than the 2017. The 2018 has more complaints per year than the 2019.

The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2018 Infiniti Q50. How we count. Data as of .

Recalls (3)

Recall Driveshaft 2024-06-21 · NHTSA campaign 24V470000
Summary 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.
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.
Recall back-over prevention, sensing system, camera 2019-09-12 · NHTSA campaign 19V654000
Summary 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."
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.
Recall Fuel pump 2017-07-27 · NHTSA campaign 17V476000
Summary 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.
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.

Complaints by component (43 total)

Engine
17
Air bags
9
Fuel and propulsion system
6
Electrical system
5
Back-over prevention
3
Powertrain
3
Wheels
3
Engine and engine cooling
2
Service brakes
2
Speed control
2
Electronic stability control (ESC)
1
Exterior lighting
1
Hydraulic brakes
1
Lane departure
1
Seat belts
1
Seats
1
Steering
1
Structure
1
Show 10 more Show less
Crash-flagged

1

Fire-flagged

1

Injury reports

0

Death reports

0

Complaints filed per year

62018520195202012022620234202410202562026
Excerpts from recent NHTSA complaint filings
  • "Systemic defect front passenger seat occupancy sensor failure triggering an illuminated airbag warning light."
    Air bags · filed 2026-09-22
  • "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…"
    Air bags, Seat belts · filed 2026-07-07
  • "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…"
    Air bags · filed 2026-06-08
  • "I am submitting this complaint regarding a safety defect in my 2018 Infiniti Q50, which was manufactured prior to May 1, 2018. Despite matching the make, model, and production timeframe associated with an existing…"
    Electrical system, Back-over prevention · filed 2026-05-05
  • "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;…"
    Electrical system · filed 2026-03-19

NHTSA crash ratings

Version Overall Front Side Rollover
2018 Infiniti Q50 4 DR AWD Not rated Not rated Not rated 5 stars
2018 Infiniti Q50 4 DR RWD Not rated Not rated Not rated 5 stars
2018 Infiniti Q50 Hybrid 4 DR AWD Not rated Not rated Not rated 5 stars
2018 Infiniti Q50 Hybrid 4 DR RWD Not rated Not rated Not rated 5 stars

Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.

Fuel economy

Trim Engine Transmission Drive City Hwy Combined Annual fuel cost
Q50 3L, 6-cyl Automatic (7-speed) Rear-wheel drive 20 29 23 MPG $3450
Q50 2L, 4-cyl Automatic (7-speed) Rear-wheel drive 23 30 25 MPG $3200
Q50 all-wheel drive 3L, 6-cyl Automatic (7-speed) All-wheel drive 19 27 22 MPG $3650
Q50 all-wheel drive 2L, 4-cyl Automatic (7-speed) All-wheel drive 22 28 24 MPG $3300
Q50 hybrid 3.5L, 6-cyl Automatic (7-speed) Rear-wheel drive 27 32 29 MPG $2750
Q50 hybrid all-wheel drive 3.5L, 6-cyl Automatic (7-speed) All-wheel drive 26 30 28 MPG $2850
Q50 Red Sport 3L, 6-cyl Automatic (7-speed) Rear-wheel drive 20 26 22 MPG $3650
Q50 Red Sport all-wheel drive 3L, 6-cyl Automatic (7-speed) All-wheel drive 19 26 22 MPG $3650

Specs and fitment

V37 generation, 2014–present
Body styles Sedan
Oil 0W-20 full synthetic (3.0L twin-turbo VR30 or 3.5L VQ) , 5.1 qt capacity
Tire size 225/55R17 (base), 245/40R19 (Red Sport)

Known issues for this generation

Recall 21V-402 covers certain 2020 Nissan Murano, INFINITI QX60, and other Nissan and Infiniti models, and certain 2021 INFINITI QX50 and Q50 vehicles: the front steering knuckle or rear axle housing may have been improperly manufactured. Dealers inspect and replace components as needed.

Compare

Frequently asked questions

Is the 2018 Infiniti Q50 reliable?

NHTSA's file on the 2018 Infiniti Q50 holds 43 complaints after 9 years, a rate of 5 per year. That is more complaints per year than most Q50 years here — over the median of the other years, which is 2. NHTSA has 3 recalls on file, including Driveshaft, Camera, and Fuel pump.

What are common problems with a 2018 Infiniti Q50?

The complaints owners file most often name Engine (17 of 43), then Air bags (9) and Fuel and propulsion system (6). Those filings include 1 that reports a crash and 1 that reports a fire.

Is the 2018 Infiniti Q50 more reliable than the years next to it?

The 2017 Q50 has 62 complaints, 4 per year, and the 2019 has 30 complaints, 4 per year. The 2018 has more complaints per year than the 2017. The 2018 has more complaints per year than the 2019.

Has the 2018 Infiniti Q50 been recalled?

The 2018 Infiniti Q50 has 3 recalls on file with NHTSA. See the recalls table on this page for dates, components, and remedies.

How many complaints have owners filed about the 2018 Infiniti Q50?

Owners have filed 43 complaints about the 2018 Infiniti Q50 with NHTSA.

What mpg does a 2018 Infiniti Q50 get?

EPA-rated combined fuel economy for the 2018 Infiniti Q50 is 24.4 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.

What oil does an Infiniti Q50 take?

0W-20 full synthetic for the common 3.0L twin-turbo VR30 or 3.5L VQ fills. Confirm the filler-cap grade.

What tire sizes does the Q50 use?

225/55R17 on base packages and 245/40R19 on Red Sport packages are listed here.

What does recall 21V-402 cover involving the Q50?

Certain 2021 Infiniti Q50 vehicles (with QX50, QX60, Murano, and other models): the front steering knuckle or rear axle housing may have been improperly manufactured; dealers inspect and replace components as needed.