GM Service Manual Online
For 1990-2009 cars only

If your vehicle has the memory package, the outside mirrors are able to perform the curb view assist mirror function. This feature may be useful in allowing the driver to view the curb when parallel parking. This feature will cause the passenger's and/or driver's mirror to tilt to a preselected position when the vehicle is in REVERSE (R).

The passenger's and/or driver's mirror will return to its original position when the vehicle is shifted out of REVERSE (R) and either a thirty second delay has occurred, the vehicle speed is greater than 8 mph (12 km/h), or the ignition is turned to off.

This feature can be turned on or off through the Driver Information Center (DIC). See Driver Information Center (DIC) for more information.