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Infiniti QX50Model year report

2021 Infiniti QX50 Problems

Compared with other Infiniti QX50 years

Typical for this model

48/100 0.9× a typical year · 50 = typical

Based only on NHTSA complaints, recalls and investigations. Not adjusted for how many vehicles were sold, and not a reliability rating. How this is calculated

Complaints
41filed with NHTSA
Median mileage
71,000miles, 10 complaints with mileage
Recalls
2campaigns on record
Trend
RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA crash rating
5 / 5stars overall, 2 rated versions
EPA fuel economy
26 mpgcombined, 2.0L 4-cyl FWD · 23 city / 29 hwy

Sources: NHTSA records for the 2021 Infiniti QX50 (complaints, recalls, investigations), NHTSA crash tests, EPA fuel economy. Report an error

NHTSA recorded 41 consumer complaints for the 2021 Infiniti QX50. The part named most often is engine, with 18 complaints (44% of the total), followed by electrical system (8) and forward collision avoidance (8). 10 of the complaints include a mileage, and 30% of those were filed for vehicles with under 50,000 miles; the median is 71,000 miles. Of all complaints, 2 involved a crash, 4 an injury, according to the filers. NHTSA lists 2 recall campaigns and 127 technical service bulletins for this model year. Engine complaints overlap with 1 technical service bulletin filed under the same part. Electrical system complaints overlap with 69 technical service bulletins filed under the same part. Compared with the other 2 Infiniti QX50 model years that have at least 25 complaints and are old enough to compare, this one scores 48 out of 100, where 50 is a typical year for the model (typical for this model). The comparison allows for the era and for how long each year has had to collect complaints, but not for how many vehicles were sold.

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.

Also reported: Steering (1), Body and structure (1), Vehicle speed control (1), Wheels (1).

Example complaints

Engine: “I took my vehicle into Roswell Infiniti to repair/replace the engine bearings as instructed on the recall notice and as it has been making noises and I have experienced rough driving. The workers did not repair or replace the bearings. And when I reported rough driving and problems with the engine, they offered to charge me $175 for a diagnostic fee. The engine is still driving rough and making knocking noises.”

NHTSA complaint #11711840, filed 2026-01

Electrical system: “The vehicle has experienced ongoing electrical and safety-system related malfunctions shortly after being purchased as an INFINITI Certified Pre-Owned vehicle in April 2025. The issues initially included flickering interior and exterior lights, intermittent door lock malfunctions, and other electrical irregularities. In June 2025, I received notification through the INFINITI app regarding a major engine recall involving engine bearing failure concerns affecting my vehicle. I brought the vehicle to Harte INFINITI for inspection regarding the recall and my electrical concerns. …”

NHTSA complaint #11738589, filed 2026-05

Forward collision avoidance: “My wife was driving her fancy little car at night, and when she reached the halfway point (in the middle of an intersection), the ADAS apparently detected something that wasn't there and the car slammed on its brakes, putting her and other drivers at risk of a collision. She said there were all kinds of lights on the dash that lit up while the car was attempting to stop itself for no reason. I have had terrible experiences with our local dealer, and have not yet contacted them about this, but I plan to today. I plan to have them fix it (if they can), and then sell the car. …”

NHTSA complaint #11769290, filed 2026-10

Engine cooling: “The contact owns a 2021 Infiniti QX50. The contact stated that while driving at an undisclosed speed, there was an abnormal sound coming from the engine compartment, prompting the contact to discontinue driving the vehicle. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the engine bearings, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. …”

NHTSA complaint #11676237, filed 2025-07, 80,000 miles

Mileage when problems were reported

30% of the 10 complaints with a mileage were filed for vehicles with under 50,000 miles; the middle half falls between 32,059 and 95,193 miles.

10%0–100%10–2520%25–5020%50–7530%75–10010%100–15010%150+
Share of complaints by mileage when the problem was reported, in thousands of miles (10 complaints with mileage). Red bars: under 50,000 miles. Bucket widths differ. Median: 71,000 miles.

Complaints by year filed

Trend: rising. Complaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.

20212022202320242025202618
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 QX50. 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
QX50 · SUV AWD★★★★★4 / 4554 · 14.7% risk
QX50 · SUV FWD★★★★★4 / 4554 · 15.5% risk

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

Neighbouring years: 2020: same overall rating; 2022: same overall rating. A redesign between years can change both the car and the test.

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

Fuel economy and running cost

EPA ratings for each 2021 Infiniti QX50 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
QX50 FWD2.0L 4-cylCVT232926$3,150
QX50 AWD2.0L 4-cylCVT222825$3,300

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 QX50 → · Check a VIN at nhtsa.gov/recalls

NHTSA investigations

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. 127 on record; the latest 10 are shown.

See all 127 bulletins →

Other model years of the Infiniti QX50

YearComplaintsMedian miRecallsCrash ★MPGScore (50 = typical)Trend
2024524,6001526—Too new
20221712,5002526—Rising
20214171,000252648 · TypicalRising
20203317,650252650 · TypicalRising
201914548,7603527100 · MoreRising
20171323,0000—20—Not enough data
20161941,4500—20—Rising

All Infiniti QX50 model years · Best and worst years by complaints

Frequently asked questions

How many NHTSA complaints does the 2021 Infiniti QX50 have?

NHTSA recorded 41 consumer complaints for the 2021 Infiniti QX50 as of Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

What part of the 2021 Infiniti QX50 is reported most often?

Engine is named most often, in 18 complaints (44% of the total), followed by electrical system with 8.

Has the 2021 Infiniti QX50 been recalled?

NHTSA lists 2 recall campaigns for this model year. To check a specific vehicle, enter its VIN at nhtsa.gov/recalls.

How did the 2021 Infiniti QX50 do in NHTSA crash tests?

NHTSA's 5-Star Safety Ratings give the 2021 Infiniti QX50 5 out of 5 stars overall, across 2 rated versions (body style and drive). Ratings from different model years are only comparable when the vehicle was not redesigned in between.

What gas mileage does the 2021 Infiniti QX50 get?

The EPA rates the 2021 Infiniti QX50 (QX50, 2.0L 4-cyl) at 26 mpg combined, 23 city and 29 highway, with an estimated annual fuel cost of $3,150 at 15,000 miles a year. Other engine and drive versions are rated differently.

At what mileage are problems with the 2021 Infiniti QX50 reported?

Among the 10 complaints that include a mileage, the median is 71,000 miles and the middle half falls between 32,059 and 95,193 miles; 30% were filed for vehicles with under 50,000 miles.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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.