2021 Infiniti QX50 problems and complaints

Owners have filed 41 complaints with NHTSA about the 2021 Infiniti QX50. The most-reported areas: Engine (18), Forward Collision Avoidance (8), Electrical System (8).

Key takeaways

  • 41 owner complaints on file with NHTSA.
  • 2 involve a crash, 0 a fire, 4 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Engine1844%
Forward Collision Avoidance820%
Electrical System820%
Engine And Engine Cooling717%
Power Train410%
Service Brakes410%
Unknown Or Other37%
Lane Departure12%
Structure12%
Exterior Lighting12%
Vehicle Speed Control12%
Fuel/Propulsion System12%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2021 Infiniti QX50 SUV AWD5/54/55/54/5
2021 Infiniti QX50 SUV FWD5/54/55/54/5

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Forward Collision Avoidance - filed 2026-10-06

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...

Engine - filed 2026-08-31

My 2021 Infiniti QX50 has suffered a catastrophic internal engine failure. This vehicle is explicitly covered under active federal safety recall NHTSA Campaign 25V437000 (Infiniti Campaign R25A8/A9 / R25B1/B2) for defective, failing main and link bearings. The Infiniti dealership is actively refusing to honor the man...

Power Train,electrical System,engine - filed 2026-06-29

On June 16, 2026, a 2021 Infiniti QX50 experienced a safety-related malfunction while being driven at approximately 15–20 mph. The vehicle suddenly jerked, lost power response, displayed multiple warning lights, showed a “System Fault – See Owner’s Manual” message, and became unresponsive/difficult to control. The engi...

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More for the 2021 Infiniti QX50

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.