NHTSA Complaint #11709332 — 2024 BMW X3

This submission is a supplemental update to my existing NHTSA complaint regarding my BMW X3. On [XXX], at approximately [XXX], while the vehicle was traveling approximately 40 MPH with the doors locked, the rear passenger door opened while the vehicle was in motion. A [XXX] child was secured in a rear car seat at the time. A [XXX] child witnessed the event while I was dropping him off at school. No audible or visual warning alerts activated before or during the incident. This event follows prior electronic access and system reliability concerns reported in November and December 2025, including operation without key presence and unauthorized access behavior. I believe these events may be related and indicative of a broader electronic or body control system failure. Due to the seriousness of this incident involving minor occupants, I no longer consider the vehicle safe to operate. The vehicle is pending inspection and has not been driven further. I am submitting this update to document a potential child-safety defect and to ensure this information is considered as part of NHTSA’s review. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)