2007 bmw 525xi turn off service light for rear brakes

To reset light brake sensor must have been replace close door turn key on but dont start car when time is displayed on instrument cluster press and hold button on left side of cluster a orange triangle will appear keep holding next service function will be displayed release button to scroll through services that can be reset just push button again without holding when rear brakes are displayed on cluster press and hold button again the message reset with a question mark will come up release button and then press and hold again and light will reset

Only with special tool (scaner).
You have to tell the computer that new brakes are installed.