Diagnostic Aids

The automatic day-night feature of the inside rearview mirror may not operate properly or become inoperative due to an intermittent short to battery voltage in the backup lighting system.

Fig 1: Automatic Day-Night Mirrors Inoperative Diagnostic Procedure (Steps 1-8)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Automatic Day-Night Mirrors Inoperative Diagnostic Procedure (Steps 9-12)

Courtesy of GENERAL MOTORS CORP.