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Fuel systemPart report

2019 Infiniti Q50 Fuel system Problems

Complaints
4about this part
Share
13%of 30 total for the year
Median mileage
49miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the fuel system of the 2019 Infiniti Q50, 13% of the 30 complaints for this model year. Where a mileage was given, the median is 49 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“While driving vehicle if you suddenly stop vehicle would stop, however when applying pressure to gas pedal vehicle would not move, if foot is left on pedal car would jerk and then proceed forward. Unlike other vehicle after breaking hard vehicle would move without hesitation.”

NHTSA complaint #11493585, filed 2022-11

“While operating the vehicle under normal driving conditions, the engine experienced a significant loss of power and reduced acceleration. The issue is believed to be related to turbocharger failure within the engine system. The loss of power created a safety concern, particularly when attempting to merge into traffic and maintain highway speeds. The vehicle did not respond as expected when acceleration was needed, which could increase the risk of an accident in certain driving situations. …”

NHTSA complaint #11732566, filed 2026-04

“The contact owns a 2019 Infiniti Q50. The contact stated while driving at high speeds, the rear end became very unstable. The ABS would not operate properly. While depressing the brake pedal, there was no pulsation to the brake pedal. Additionally, the collision avoidance system randomly activated causing the vehicle to stop abruptly with no object or vehicle nearby. The contact also stated that the high-pressure fuel lines were leaking causing an odor of fuel to be present. The vehicle was taken to an unknown dealer who was unable to determine the cause of the failure. …”

NHTSA complaint #11353819, filed 2020-09, 49 miles

“Shortly after purchasing the vehicle, I began experiencing serious performance issues. While driving, the vehicle suddenly lost power, would not accelerate properly, and warning lights appeared on the dashboard. The vehicle eventually shut off while in operation. The vehicle was inspected by a dealership, which initially stated there were no issues. However, the problem continued and worsened. The vehicle was then inspected by an authorized Infiniti dealership, where technicians identified a consistent knocking noise coming from the engine. …”

NHTSA complaint #11721157, filed 2026-02

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2019413%
2018614%
2017914%
2016410%
201532%
201432%

Other parts of the 2019 Infiniti Q50

Engine
10 complaints
Electrical system
6 complaints
Other or unknown
6 complaints
Transmission and drivetrain
6 complaints
Steering
4 complaints
Suspension
4 complaints
Vehicle speed control
4 complaints
Air bags
2 complaints
Brakes
2 complaints
Engine cooling
2 complaints
Exterior lighting
1 complaints
Forward collision avoidance
1 complaints

← All problems reported for the 2019 Infiniti Q50

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology