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EnginePart report

2021 Infiniti Q50 Engine Problems

Complaints
1about this part
Share
17%of 6 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 1 complaints about the engine of the 2021 Infiniti Q50, 17% of the 6 complaints for this model year.

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.

“In August 2026, while driving, the vehicle suddenly lost acceleration and engine power and would only travel at a very slow speed. The check engine light came on. The driver had to safely stop, turn the engine off, and restart it. After restarting, the vehicle temporarily regained acceleration and normal speed. This problem has occurred more than once and creates a serious safety risk in traffic, especially when merging or crossing intersections. …”

NHTSA complaint #11766008, filed 2026-09

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2021117%
20191033%
20181739%
20171727%
20161026%
201597%
2014127%

Other parts of the 2021 Infiniti Q50

Vehicle speed control
2 complaints
Air bags
1 complaints
Engine cooling
1 complaints
Forward collision avoidance
1 complaints
Body and structure
1 complaints
Transmission and drivetrain
1 complaints
Wheels
1 complaints

← All problems reported for the 2021 Infiniti Q50

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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