Automatic Day-Night Mirror System Components
The automatic day-night mirror system consist of a inside rearview mirror.
Automatic Day-Night Mirror Operation
With the ignition switch in the ON position, ignition 3 voltage is supplied through the IGN 3 RR fuse, in the rear fuse block, to the inside rearview mirror. The inside rearview mirror uses 2 photocell sensors in order to determine light conditions in the front and the back of the vehicle. At night with the automatic day-night feature enabled, as the glare of the headlamps from behind increases, the mirror gradually becomes darker in order to absorb the glare. In the daytime, the mirror is in a normal state. With the gear selector lever in the REVERSE position, backup lamp supply voltage is supplied as an input to the inside rearview mirror. The inside rearview mirror will gradually change to a normal state as a result of the backup lamp supply voltage input. Ground for the inside rearview mirror is provided by G402.
Automatic Day-Night Mirror Switches
The automatic day-night mirror has two switches that perform the following functions:
| • | The AUTO switch is used to enable the automatic day-night feature of the mirror. With the ignition in the ON position, depress the AUTO switch to enable the automatic day-night feature of the mirror. A green indicator will illuminate on the mirror when the automatic day-night feature is enabled. |
| • | The OFF switch is used to disable the automatic day-night feature of the mirror. |
Automatic Day-Night Mirror Switch (w/OnStar®)
This is the on/off switch for the automatic day-night feature of the inside rearview mirror. The on/off switch is used to enable or disable the automatic day-night feature of the mirror. With the ignition in the ON position, depress on/off switch to enable the automatic day-night feature of the mirror. A green indicator will illuminate on the mirror when the automatic day-night feature is enabled. To disable the automatic day-night feature of the mirror, depress the on/off switch again.
