The official notice
Defect
On certain vehicles, the air bag control unit may not work properly due to a software error. As a result, the airbag warning light and warning messages may not turn on when there is a problem with the airbag system or the pedestrian protection system. Note: This recall replaces Transport Canada recall 2022-183. Vehicles that were repaired under that recall also require this repair.
Safety Risk
An airbag system that does not work properly could increase the risk of injury in a crash.
Remedy
BMW will notify owners by mail and instruct you to take your vehicle to a dealership to update the airbag control unit software. To reduce the safety risk, BMW recommends that you should not transport any passengers until the recall repairs have been completed.