Compass Calibration (2007-2013): Calibration
NOTE:
In some cases the compass may need to be calibrated. For example it always needs to be calibrated if the rear view mirror has been replaced or C appears in the display.
Look for a large, open area that is free of traffic, for example a car park or industrial site.
Ignition on.
Press in the button (1) until C is shown in the display (6-9 seconds).