GM Service Manual Online
For 1990-2009 cars only

You control the windshield wipers by turning the band with the wiper symbol on it.

(Mist): Turn the band to mist for a single wiping cycle. Hold it there until the wipers start. Then let go. The wipers will stop after one wipe. Hold the band on mist longer, if more wipes are needed.

(Delay): The wiper speed can be set for long or short delays between wipes. This can be very useful in light rain or snow. Turn the band to choose the delay time. The closer to the top of the lever, the shorter the delay.

(Low Speed): For steady wiping at low speed, turn the band away from you to the first solid position past the delay settings.

(High Speed): For high-speed wiping, turn the band to the second solid position past the delay settings.

(Off): Move the band to off, to stop the wipers.

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.

Windshield wipers work in all power modes, except when set to LOCK. After the engine is turned off, wipers will work in Retained Accessory Power (RAP) mode until a door is opened. See Retained Accessory Power (RAP) .