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What 14 owners told NHTSA about the 2020 BMW X4

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (14)Crash / fire / injury (1)Airbags (3)Electrical system (3)Suspension (3)Seat belts (2)Body & structure (1)Driver assistance (1)Engine (1)Lane Departure (1)Lights (1)Seats (1)

3 of 14 complaints match · Airbags · clear filters

Sep 19, 2025Electrical systemAirbagsSeats

I went to the car wash and when I turned my car back on it stated the the Driver's Restraints system malfunction.

NHTSA ODI 11688269

Jun 21, 2024AirbagsSeat belts

The contact owns a 2020 BMW X4. The contact stated that while driving at an undisclosed speed, the "Restrain System Fault" message was displayed. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the driver's side seat belt. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 20V164000 (Seat Belt, Air Bags) but the VIN was not included. The manufacturer was notified of the failure but referred the contact to the NHTSA Hotline for assistance. The failure mileage was 42,000.

NHTSA ODI 11595719

Jun 26, 2020AirbagsCrash

ON JUNE 21, 2020, ON A CITY STREET. MY WHITE BMW WAS TRAVELING WESTWARD AND A BLACK BMW WAS TRAVELING SOUTHBOUND. THE BLACK BMW RAN ITS RED LIGHT TO MY GREEN LIGHT. WHEN WE COLLIDED IN THE INTERSECTION THE COMPLETE FRONT END OF MY WHITE BMW IMPACTED THE BLACK BMW DRIVER'S SIDE, FROM APPROXIMATELY FROM THE FRONT TIRE, TO JUST INTO ITS REAR DOOR. THAT IMPACT CAUSED THE BLACK BMW'S SIDE AIRBAGS TO DEPLOY, AND EITHER AT THE SAME TIME OR UPON A SUBSEQUENT COLLISION WITH A BOLLARD, ITS FRONT AIRBAGS DEPLOYED ALSO. TO MY SHOCK AND DISMAY, NON OF THE AIRBAGS IN MY WHITE BMW DEPLOYED,. ALL AIRBAGS ARE STILL IN THEIR RESPECTIVE STORAGE COMPARTMENTS. ADDITIONALLY, I HAVE HIGHLIGHTED SEVERAL OTHER STANDARD SAFETY FEATURES OF THE CAR THAT DID NOT PERFORM ITS DESIGNATED FUNCTION EITHER. I WOULD LIKE YOU TO INVESTIGATE WHY THESE SYSTEMS FAILED ME. THANK YOU *TR

NHTSA ODI 11330951

Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 12, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2020 BMW X4 verdict →