GM Service Manual Online
For 1990-2009 cars only

This feature assists the driver by improving rear obstacle detection and is useful in viewing the curb when parallel parking.

The passenger and/or driver mirror tilts to a preselected position when the vehicle is in R (Reverse). This feature lets the driver view the curb when parallel parking. If further adjustment is needed after the mirror is tilted, the mirror switch may be used. The mirror then returns to this new position when the vehicle is shifted into R (Reverse).

When the vehicle is shifted out of R (Reverse), and a five-second delay has occurred, the mirror will return to its original position. The delay prevents movement of the mirror if multiple gear transitions R (Reverse) to D (Drive) to R (Reverse) occur during a parallel parking maneuver.

If the outside mirror selector switch is in the middle position, neither outside mirror will move.

Side Blind Zone Alert (SBZA)

If the vehicle has the Side Blind Zone Alert (SBZA) system, see Side Blind Zone Alert (SBZA) for more information.