GM Service Manual Online
For 1990-2009 cars only

If the vehicle has this feature, the driver's outside mirror adjusts for the glare of the headlamps behind you. See Automatic Dimming Rearview Mirror with Compass and Temperature Display .

Park Tilt Mirrors

The vehicle's outside mirrors can also perform a park tilt function. This causes the passenger's and/or driver's mirror to tilt to a preselected position when the vehicle is in REVERSE (R). This feature may be useful in viewing the curb when parallel parking.

When the vehicle is shifted out of REVERSE (R) and a short delay has occurred, the passenger's and/or driver's mirror will return to its original position.

To change the preselected tilt position, adjust the mirrors to the desired position while the vehicle is in REVERSE (R). When the vehicle is shifted out of REVERSE (R), this new position is saved in memory as the tilt position.

This feature can be enabled/disabled through the Driver Information Center. See DIC Vehicle Customization for more information.