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#BS-2018-INFQ50-40F02018 Infiniti Q50Problems, Recalls & Reliability
Based on reports from 67 owners and 3 recalls for this exact model.
Data updated ·checked October 13, 2026 · NHTSA complaints through October 8, 2026
Preliminary Verdict
Proceed with Caution
Based on 67 complaints, 3 crashes, 1 fires, and 3 recalls.
Top reported problems
blows cold intermittently
1 complaints • Severity 4/10
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Mechanic Inspection Checklist
19 owners reported engine issues — failures commonly reported around 29K miles.
Failure Timeline by Mileage
Peak failure range: 0–30K miles (15 reports) • Median: 29K miles
30,000-Mile Cost Projection
Best Case
Most Likely
Worst Case
Top cost driver: Engine (19 reports).
Also in your report
Owner Intelligence
AI-synthesized themes from real complaints
Buyer Lot Checklist
Questions, test drive checks, walk-away triggers
Negotiation Talking Points
Data-backed dollar deductions
Buy / Skip Verdict
Final recommendation with conditions
Where the complaints fall
2018 Infiniti Q50: Known Issues & Problem Areas
Engine Issues
Engine complaints account for 28% of all reports filed for the 2018 Infiniti Q50, with 19 owners filing complaints with NHTSA. The median mileage at time of complaint is 28,706 miles, suggesting issues tend to surface around the 29K-mile mark.
Airbags Issues
Airbags complaints account for 13% of all reports filed for the 2018 Infiniti Q50, with 9 owners filing complaints with NHTSA. Owners should pay attention to airbags-related symptoms during test drives and pre-purchase inspections.
Fuel System Issues
Fuel System complaints account for 9% of all reports filed for the 2018 Infiniti Q50, with 6 owners filing complaints with NHTSA. Owners should pay attention to fuel system-related symptoms during test drives and pre-purchase inspections.
Electrical Issues
Electrical complaints account for 7% of all reports filed for the 2018 Infiniti Q50, with 5 owners filing complaints with NHTSA. Owners should pay attention to electrical-related symptoms during test drives and pre-purchase inspections.
Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.
Complaint trend by year
Complaints filed with NHTSA by year for the 2018 Infiniti Q50. Recent trend: decreasing.
Don't negotiate blind — know what this car costs to own
Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict
Recall History (3 recalls)
ELECTRICAL SYSTEM:SOFTWARE
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.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
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."
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, and 2015-2019 Q70L two-wheel drive vehicles. The driveshaft can fatigue and break.
Recall severity analysis & seller scripts
The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.
2018 Infiniti Q50 NHTSA Safety Ratings
Overall
Not ratedFrontal crash
Not ratedSide crash
Not ratedRollover
★★★★★5 of 5 stars
From NHTSA's New Car Assessment Program (5-Star Safety Ratings). Where NHTSA tested more than one version of this vehicle, the lowest rating is shown.
The worst model year for the Infiniti Q50 is the 2014 — worth knowing if you're cross-shopping years. The biggest problem area is brakes.
2018 Infiniti Q50 vs. Class Average (Midsize Cars)
This vehicle
67
Class avg
129
Below the class average — fewer complaints than typical midsize cars vehicles. A good sign.
Complaint counts correlate with sales volume — popular vehicles naturally generate more reports. The full report normalizes for this.
About this data
NHTSA Complaints
Federal database of owner-filed safety complaints. 67 records for this vehicle.
NHTSA Recalls
Manufacturer-issued safety recalls. 3 recalls found for this vehicle.
Repair Cost Data
Real-world repair costs from owner reports and independent databases.
Last updated (checked October 13, 2026). NHTSA complaints received through October 8, 2026; safety ratings from NHTSA's 5-Star program.
2018 Infiniti Q50: Frequently Asked Questions
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10 sections of AI analysis based on 67 owner reports. Know before you buy.