GM Service Manual Online
For 1990-2009 cars only

Power Mirror System Components

The power mirror system consists of the following components:

    • Power mirror switch.
    • Selector switch.
    • Left outside power mirror.
    • Right outside power mirror.
    • MIR/LOCK 3A fuse.

Each of the outside power mirrors contains two reversible motors. The vertical motor operates the up and down directions and the horizontal motor operates the left and right directions. Each of the power mirror motors are circuit breaker protected.

Heated Mirror System Components

The heated mirror system consists of the following components:

    • RR Defog relay.
    • HVAC control module.
    • Left outside power mirror.
    • Right outside power mirror.
    • HTD MIR 10A fuse.

The heated mirror system is activated by depressing the rear window defogger switch, which is part of the HVAC control module. For further information on the rear window defogger operation, refer to Rear Window Defogger Description in Stationary Windows.

Automatic Day -- Night Mirror System Components

The automatic day -- night mirror system consists of the following components:

    • Inside automatic day -- night mirror.
    • Left outside power mirror.
    • Right outside power mirror.
    • Backup lamp switch
    • IGN 1 10A fuse.
    • B/U LP 25A fuse.
    • VEH B/U 15A fuse.

The automatic day -- night mirror system changes the reflectiveness of the inside and outside rear view mirrors. This is done to reduce the amount of glare given off by the mirrors when headlamps are approaching from the rear during low light conditions. For further information on the automatic day -- night mirror system, refer to Automatic Day-Night Mirror Description in Stationary Windows.