2008 Cadillac STS Owner's Manual - Page 173

If using the accelerator pedal and the set button at end of the lever to increase cruise set speed, your new set speed must be at least 5 mph higher than current speed for this method to work. If it is not 5 mph higher, switch cruise switch off, then on, and then reset your speed using the set button. Using Cruise Control on Hills How well the cruise control works on hills depends upon the vehicle speed, load, and the steepness of the hills. When going up steep hills, you might have to step on the accelerator pedal to maintain the vehicle's speed. When going downhill, you might have to brake to keep the vehicle's speed down. Applying the brake will turn off the cruise control. If you need to apply the brake due to the grade of the downhill slope, you might not want to attempt to use your cruise control feature. Reducing Speed While Using Cruise Control There are two ways to reduce your speed while using cruise control: • Press in the button at the end of the lever until you reach the lower speed desired, then release it. Ending Cruise Control To end a cruise control session, step lightly on the brake pedal. Stepping on the brake pedal will end the current cruise control session only. Move the cruise control switch to off to turn off the system completely. • To slow down in very small amounts, briefly press the set button. Each time this is done, the vehicle goes about 1 mph (1.6 km/h) slower. Passing Another Vehicle While Using Cruise Control Use the accelerator pedal to increase your vehicle speed. When you take your foot off the pedal, the vehicle slows down to the cruise control speed you set earlier. Erasing Speed Memory When the cruise control or the ignition is turned off, the cruise control set speed memory is erased. 3-19