GM Service Manual Online
For 1990-2009 cars only

The windshield wipers will operate with the ignition in ACC or ON.

WIPER:  To operate the windshield wipers, turn the band labeled WIPER, located on the multifunction lever, upward or downward.

OFF: To stop the wipers turn the band to OFF. The five marks between OFF and LO are delay settings. For a longer delay between wiping cycles, turn the band downward. For a shorter delay between wiping cycles turn the band upward.

LO (Low Speed): Turn the band up to LO for a steady wiping at a low speed.

HI (High Speed): Turn the band up to HI for a steady wiping at a high speed.

MIST:  Turn the band downward to MIST for a single wiping cycle. Hold the band at this setting until the windshield wipers start, then release it. The windshield wipers will stop after one wipe. If additional cycles are needed, hold the band on MIST longer.

Be sure to clear ice and snow from the wiper blades before using them. Hold the band at this setting until the windshield wipers start, then release it. The windshield wipers will stop after one wipe. If additional cycles are needed, hold the band on MIST longer.

Heavy snow or ice can overload your wipers. A circuit breaker will stop them until the motor cools. Clear away snow or ice to prevent an overload. If your blades become damaged, get new blades or blade inserts. See Windshield Wiper Blade Replacement for more information.