2000 GMC Envoy Owner's Manual - Page 97

For steady wiping at low speed, turn the band away from you to the LO position. For high-speed wiping, turn the band further, to HI. To stop the wipers, turn the band to the OFF position. Be sure to clear ice and snow from the wiper blades before using them. If they're frozen to the windshield, carefully loosen or thaw them. If your blades do become worn or damaged, get new blades or blade inserts. Rear Window Washer/Wiper This switch is located on the instrument panel. Windshield Washer There is a paddle marked with the windshield washer symbol at the top of the multifunction lever. To spray washer fluid on the windshield, push the paddle. The wipers will clear the window and then either stop or return to your preset speed. CAUTION: In freezing weather, don't use your washer until the windshield is warmed. Otherwise the washer fluid can form ice on the windshield, blocking your vision. To turn the rear wiper on, slide the switch to either LO or HI. For delayed wiping, slide the switch to LO. For steady wiping, slide the switch to HI. To turn the wiper off, slide the switch to OFF. To wash the window, press the wash button located on the switch. The switch must be in either LO or HI. The rear window washer uses the same fluid bottle as the windshield washer. However, the rear window washer will run out of fluid before the windshield washer. If you can wash your windshield but not your rear window, check your fluid level. 2-35