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Infiniti Q50Model year report

2021 Infiniti Q50 Problems

Complaints
6filed with NHTSA
Median mileage
44,000miles, 3 complaints with mileage
Recalls
3campaigns on record
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA crash rating
—no overall rating published
EPA fuel economy
23 mpgcombined, 3.0L 6-cyl RWD · 20 city / 29 hwy

Sources: NHTSA records for the 2021 Infiniti Q50 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 6 consumer complaints for the 2021 Infiniti Q50. The part named most often is vehicle speed control, with 2 complaints (33% of the total), followed by air bags (1) and engine (1). 3 of the complaints include a mileage, and 67% of those were filed for vehicles with under 50,000 miles; the median is 44,000 miles. Of all complaints, 1 involved a crash, according to the filers. NHTSA lists 3 recall campaigns and 111 technical service bulletins for this model year. Air bags complaints overlap with 2 technical service bulletins filed under the same part.

This model year has fewer than 25 complaints on record, so the numbers below can change a lot with a few new reports.

Which parts are reported most

Complaints can name more than one part, so the counts add up to more than the total. Select a part to see its complaints, recalls and bulletins.

Example complaints

Vehicle speed control: “I purchased a new 2021 Infiniti Q50 from Infiniti of Cool Springs on September 28, 2020. There was an incident on January 13, 2022 due to a manufacturer defect that caused my car to accelerate on it’s own. I was parked at a car wash to vacuum my vehicle. I had my foot on the brake to move the gear shift into park when my car rapidly accelerated which caused me to crash through a metal fence that separated the car wash from the adjacent property. I have an added safety feature on my vehicle to prevent a forward collision with emergency breaking that also didn’t implement. …”

NHTSA complaint #11460324, filed 2022-04

Air bags: “The contact owns a 2021 Infiniti Q50. The contact stated that while driving at undisclosed speeds, the air bag warning light illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact called an independent mechanic, but no assistance was provided. The manufacturer was not contacted. The failure mileage was approximately 35,000.”

NHTSA complaint #11607519, filed 2024-08, 35,000 miles

Engine: “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

Engine cooling: “The contact owns a 2021 Infiniti Q50. The contact stated that while driving approximately 70 - 80 MPH and attempting to accelerate, the vehicle would accelerate but failed to exceed 10 MPH. The accelerator pedal had to be depressed to the floorboard for the vehicle to accelerate; however, the vehicle still failed to exceed 10 MPH. During the failure, the check engine warning light was temporarily illuminated. The contact intended to have the vehicle towed to the dealer, which was called and informed of the issue. …”

NHTSA complaint #11762666, filed 2026-09, 82,000 miles

Mileage when problems were reported

67% of the 3 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 35,000 and 82,000 miles.

0%0–100%10–2567%25–500%50–7533%75–1000%100–1500%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (3 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 44,000 miles.

Complaints by year filed

Fewer than 15 complaints, too few for a reliable trend.

2022202420263
Complaints by year the complaint was filed with NHTSA. Red bars: the last 3 full calendar years used for the trend. The current year (2026) is partial.

Crash test ratings

NHTSA's 5-Star Safety Ratings for the 2021 Infiniti Q50. Frontal results are shown driver / passenger; rollover shows the star rating and NHTSA's estimated risk of rolling over in a single-vehicle crash.

VersionOverallFrontalSideSide poleRollover
Q50 · sedan AWDnot rated———5 · 9.7% risk
Q50 · sedan RWDnot rated———5 · 9.7% risk

Driver aids listed by NHTSA for the 2021 model year: forward collision warning standard, lane departure warning standard, automatic emergency braking not available.

Source: NHTSA New Car Assessment Program (5-Star Safety Ratings), nhtsa.gov/ratings.

Fuel economy and running cost

EPA ratings for each 2021 Infiniti Q50 version. Annual fuel cost is the EPA's estimate at its current fuel prices for 15,000 miles a year (55% city driving).

VersionEngineTransmissionCityHwyComb.Fuel / yr
Q50 RWD3.0L 6-cyl7-speed automatic202923$3,550
Q50 AWD3.0L 6-cyl7-speed automatic192722$3,750
Q50 Red Sport RWD3.0L 6-cyl7-speed automatic202622$3,750
Q50 Red Sport AWD3.0L 6-cyl7-speed automatic192622$3,750

Source: U.S. EPA and Department of Energy, fueleconomy.gov. Ratings are for comparing vehicles; real-world mileage varies with driving and conditions.

Recalls and investigations

Recall details for the 2021 Infiniti Q50 → · Check a VIN at nhtsa.gov/recalls

Technical service bulletins

TSBs are manufacturer notes to dealers about known repair procedures. They are not recalls and do not by themselves mean a vehicle has a fault. 111 on record; the latest 10 are shown.

See all 111 bulletins →

Other model years of the Infiniti Q50

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
20238—0—23—Too new
2021644,0003—23—Not enough data
2019303,0001—2328 · FewerFalling
20184424,4003—2348 · TypicalRising
20176329,0004—2352 · TypicalRising
20163933,5004—2338 · TypicalRising
201512626,614352392 · MoreRising
20141707,4905523100 · MoreStable

All Infiniti Q50 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2021 Infiniti Q50 have?

NHTSA recorded 6 consumer complaints for the 2021 Infiniti Q50 as of Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2021 Infiniti Q50 is reported most often?

Vehicle speed control is named most often, in 2 complaints (33% of the total), followed by air bags with 1.

Has the 2021 Infiniti Q50 been recalled?

NHTSA lists 3 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

What gas mileage does the 2021 Infiniti Q50 get?

The EPA rates the 2021 Infiniti Q50 (Q50, 3.0L 6-cyl) at 23 mpg combined, 20 city and 29 highway, with an estimated annual fuel cost of $3,550 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2021 Infiniti Q50 reported?

Among the 3 complaints that include a mileage, the median is 44,000 miles and the middle half falls between 35,000 and 82,000 miles; 67% were filed for vehicles with under 50,000 miles.

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. Crash ratings are from NHTSA’s New Car Assessment Program. Fuel economy is from the EPA and DOE (fueleconomy.gov).

Complaint counts come from NHTSA’s public complaint database; we count each complaint once. The source records for this vehicle are on nhtsa.gov. Scores and trends are our own summaries of that data, described in the methodology. This page is not legal, safety or repair advice: for a specific vehicle, check its VIN at nhtsa.gov/recalls and ask a qualified mechanic. See an error? Tell us.