How do you reset roll over bars on a 1998 BMW m3?

To reset the rollover bars on a 1998 BMW M3, start by ensuring the vehicle is on a flat surface and the ignition is off. Open the rear trunk and locate the rollover bar reset button, usually found near the rear seat area. Press and hold the button for a few seconds until the bars retract fully. After this, start the car to ensure the system is functioning properly.