M Coupe, M Roadster & Z3

This function is preset to LOCK ON. To change between LOCK ON to LOCK OFF, enter on-board test mode. See ENTERING ON-BOARD TEST MODE  . Press trip odometer reset button until test 14 is selected, then press and hold reset button. Trip odometer will display L ON. While still holding reset button, trip odometer display will change between L ON and L OFF every 3 seconds. Release reset button when desired status is received.