GM Service Manual Online
For 1990-2009 cars only

The windshield wiper/washer switch is on the multifunction lever located on the left side of the steering column.

Turn the band with on it to control the wipers.

(Mist): Turn to mist, for a single wiping cycle and then release. The wipers stop after one wipe. Hold longer for additional wipes.

(Off): Move the band to this position to turn the wipers off.

(Delay): Turn the band to choose the delay time between wipes. Turn towards the top or bottom of the lever, for a shorter or longer delay.

(Low Speed): Use for steady wiping at low speed.

(High Speed): Use for steady wiping at high speed.

Be sure to clear ice and snow from the wiper blades before using them. If they are frozen to the windshield, carefully loosen or thaw them. If your blades do become worn or damaged, get new blades or blade inserts.