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Engine coolingPart report

2021 Infiniti QX50 Engine cooling Problems

Complaints
7about this part
Share
17%of 41 total for the year
Median mileage
90,321miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the engine cooling of the 2021 Infiniti QX50, 17% of the 41 complaints for this model year. Where a mileage was given, the median is 90,321 miles. 1 recall campaign on record is filed under a similar system.

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.

“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

“The contact owns a 2021 Infiniti QX50. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The vehicle was taken to the dealer, who referenced the Collision Avoidance System; however, did not diagnose the vehicle for any failure. The dealer confirmed that the recall repair was not yet available. …”

NHTSA complaint #11683499, filed 2025-08, 28,500 miles

“The contact owns a 2021 Infiniti QX50. The contact stated that the vehicle was taken to a dealer for an oil change; however, the dealer informed the contact that the turbocharger needed to be replaced. The vehicle was repaired; however, while driving at an undisclosed speed, there was an abnormal sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken back to the dealer for an oil change, and the dealer informed the contact that the engine needed to be replaced. …”

NHTSA complaint #11702707, filed 2025-12, 90,321 miles

“The contact owns a 2021 Infiniti QX50. The contact stated that while attempting to start the vehicle, the vehicle failed to start and was inoperable. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 25V437000 (Engine and Engine Cooling); however, the part to complete the recall repair was not yet available. The dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact was referred to Roadside Assistance to tow the vehicle to the dealer. …”

NHTSA complaint #11687923, filed 2025-09, 59,000 miles

“The contact owns a 2021 Infiniti QX50. The contact received notification of NHTSA Campaign Number: 25V437000 (ENGINE AND ENGINE COOLING); however, the part to do the recall repair was not yet available. The contact stated that while driving at 55 MPH, there was an abnormal sound coming from the engine. The check engine warning light was illuminated, and the vehicle jerked while driving and failed to accelerate as intended while depressing the accelerator pedal. The contact called the local dealer and explained the failure. …”

NHTSA complaint #11683280, filed 2025-08, 165,000 miles

Related recalls

Related service bulletins

Engine cooling: other model years

YearComplaintsShare of year
202216%
2021717%
2020412%
20193222%

Other parts of the 2021 Infiniti QX50

Engine
18 complaints
Electrical system
8 complaints
Forward collision avoidance
8 complaints
Brakes
4 complaints
Transmission and drivetrain
4 complaints
Other or unknown
3 complaints
Fuel system
2 complaints
Exterior lighting
1 complaints
Lane departure
1 complaints
Steering
1 complaints
Body and structure
1 complaints
Vehicle speed control
1 complaints

← All problems reported for the 2021 Infiniti QX50

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