1997 GMC Suburban Owner's Manual - Page 113

0 Move the cruise control switch from ON to R/A. Hold it there until you get up to the speed you want, and then release the switch. (To increase your speed in very small amounts, move the switch to R/A for less than half a second. Each time you do this, your vehicle will go about 1 mph ( I .6 kmh) faster.) Reducing Speed While Using Cruise Control There are two ways to reduce your speed while using cruise control: 0 steepness of the hill causes the vehicle speed to drop more than 15 mph (24 km/h) below the set speed, your cruise control will automatically disengage. When going downhill, you may have to brake or shift to a lower gear to keep your speed down. Of course, applying the brake takes you out of cruise control.Many drivers find this to be too much trouble and don't use cruise control on steep hills. Push in the SET button at the end of the lever until you reach the lower speed you want, then release it. To slow down in very small amounts, push the button for less than half a second. Each time you do this, you'll go I mph (1.6 k m h ) slower. Ending Cruise Control There are two ways to turn off the cruise control: 0 Step lightly on the brake pedal or 0 0 Move the cruise control switch to OFF. Passing Another Vehicle While UsingCruise Control Use the accelerator pedal to increase your speed. When you take your foot off the pedal, your vehicle will slow down to the cruisecontrol speed you set earlier. Using Cruise Control on Hills How well your cruise control will work on hills depends upon your speed, load and the steepnessof the hills. When going up steep hills, you may have to step on the accelerator pedal to maintain your speed. If the 2-39