NHTSA Complaint #11496690 — 2021 BMW X7

When starting the vehicle and shifting into drive, "hard" brakes are felt. Brake pedal is "stuck" in a high position and cannot be compressed. The vehicle is extremely unstable - the car lurches forward when brakes are slightly released. Excessive brake pressure is required to prevent the vehicle from moving inadvertently. This persists for 10-60 seconds, then the brakes relax into the normal position and no other issues are experienced. Confirmed NO lights on dash or warnings sounded. This has been experienced 4 times in 6 months. Issue has been reported to dealership. After second occurrence, dealership took vehicle for diagnostics and updated software. After third occurrence, dealership took vehicle and replaced ABS module, with software update. Feedback from BMW is that they think a diagnostic is running at startup and when the vehicle is shifted into drive it is not finished with the cycle. Most recent visit to dealership was late November 2022. Issue occurred again on 12/8 in the afternoon. Vehicle was parked in carpool line at school. When line began moving, vehicle was started and shifted into gear. Hard brake immediately felt (this is after repairs from BMW). This recurrence prompted this submission.