2008 Hummer H3 Alpha Owner's Manual - Page 148

Reducing Speed While Using Cruise Control • Press and hold the set button until you reach the desired lower speed, then release it. When going downhill, you might have to brake or shift to a lower gear to keep the vehicle speed down. Of course, applying the brake turns off the cruise control. Many drivers find this to be too much trouble and do not use cruise control on steep hills. • To slow down in very small amounts, briefly press the set button. Each time you do this, you will go about 1 mph (1.6 km/h) slower. Ending Cruise Control To turn off the cruise control, do one of the following: Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase your speed. When you take your foot off the pedal, your vehicle slows down to the cruise control speed you set earlier. • Step lightly on the brake pedal. • Move the cruise control switch to off. • Lightly tap or press the clutch, if you have a manual transmission. Erasing Speed Memory When you turn off the cruise control or the ignition, the cruise control set speed memory is erased. Using Cruise Control on Hills How well your cruise control works on hills depends upon your speed, load, and the steepness of the hills. When going up steep hills, you might want to step on the accelerator pedal to maintain the vehicle speed. 3-14