GM Service Manual Online
For 1990-2009 cars only

If the vehicle has memory seat and mirrors, the driver or passenger mirror can tilt to a pre-selected position when the vehicle is shifted into R (Reverse). Shift the vehicle out of R (Reverse) and after a short delay, both mirrors return to their original position. Use this feature to view the curb when parallel parking.

Select either mirror, or both mirrors through the Driver Information Center (DIC) to activate this feature. See DIC Vehicle Customization for more information.

Use the mirror controls to make further adjustments after the mirror is tilted. See Outside Power Mirrors for more information.