GM Service Manual Online
For 1990-2009 cars only

Night Vision Mirror Function Check

  1. There is a possibility that the night vision mirror or compass does not operate properly.
  2. In the event that this occurs, refer to the list below for system function checks and procedures for correcting the problem.
  3. 2.1. Refer to Compass Variance Setup Description if the compass reads direction but is not accurate.
    2.2. Refer to Compass Calibration Description if the compass displays a C.
    2.3. Refer to Magnetic Field Description if the compass displays all segments.
    2.4. If the mirror does not automatically dim when glare is present in the mirror at night time, refer to Automatic Day-Night Mirrors System Check .