2010 Hummer H3 Owner's Manual - Page 241

Driving and Operating 9-57 Cruise Control 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). S (Resume/Accelerate): Makes the vehicle accelerate or resume to a previously set speed. rT (Set): Press this button to set the speed. Cruise control will not work if the parking brake is set, or if the master cylinder brake fluid level is low. If the brakes are applied, the cruise control shuts off. WARNING (Continued) 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. The cruise control disengages, if the vehicle has the Traction Control System (TCS) and it begins to limit wheel spin. See Traction Control System (TCS) on page 9‑52. When road conditions allow the cruise control to be safely used again, it can be turned back on. { WARNING 9 (Off): Turns the cruise control system off. R (On): Turns the cruise control the system on. 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. (Continued)