Automatic Day/Night Mirror System Check
- Turn ignition switch to RUN position. Move gearshift lever into Park. Move mirror switch to MAXIMUM, ON or MIRROR position, if necessary. Cover ambient light sensor (windshield side of mirror) with a dark cloth. Shine light on headlight sensor (on mirror side). Mirror should gradually darken.
- Move gearshift lever into Reverse. Mirror should gradually lighten to a clear state. Move gearshift lever into Park. Mirror should gradually darken. Remove cloth and light. Mirror should gradually lighten to a clear state. If vehicle is equipped with compass, turn on compass. Compass direction display should be on.