2010 GMC Sierra 1500 Crew Cab Owner's Manual - Page 231

Windshield Washer Cruise Control { WARNING: 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. Push the paddle marked with the windshield washer symbol at the top of the multifunction lever, to spray washer fluid on the windshield. The wipers clear the window and then either stop or return to the preset speed. { WARNING: Cruise control can be dangerous where you cannot drive safely at a steady speed. So, do not use the cruise control on winding roads or in heavy traffic. Cruise control can be dangerous on slippery roads. On such roads, fast changes in tire traction can cause excessive wheel slip, and you could lose control. Do not use cruise control on slippery roads. For vehicles with cruise control, a speed of about 40 km/h (25 mph) or more can be maintained without keeping your foot on the accelerator. Cruise control does not work at speeds below about 40 km/h (25 mph). When the brakes are applied, cruise control is turned off. L (Washer Fluid): 4-7