GM Service Manual Online
For 1990-2009 cars only

Caution: In freezing weather, do not use your washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision.

(Washer Fluid): Pull the windshield wiper lever toward you to operate the windshield wipers. Washer fluid will squirt onto the windshield and the wipers will run for a few cycles to clear the windshield. For more wash cycles, pull the lever toward you and hold it there.