2007 Pontiac Grand Prix Owner's Manual - Page 140

Cruise Control 9 (Off): This position turns the system off. {CAUTION: Cruise control can be dangerous where you cannot drive safely at a steady speed. So, do not use your 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. R (On): This position activates the system. + (Resume/Accelerate): This position to makes the vehicle accelerate or resume to a previously set speed. T (Set): Press this button to set the speed. With cruise control, you can maintain a speed of about 25 mph (40 km/h) or more without keeping your foot on the accelerator. This can really help on long trips. Cruise control does not work at speeds below about 25 mph (40 km/h). Cruise control will not work if your parking brake is set, or if the master cylinder brake fluid level is low. 140