2010 Cadillac STS Owner's Manual - Page 193

T (Set/Decrease) : Press to set the speed or to decrease the speed when cruise is already active. [ (Cancel): Press this button on the steering wheel to cancel cruise control without erasing the set speed from memory. Setting Cruise Control This light on the instrument panel cluster comes on while cruise control is on. { WARNING: If you leave your cruise control on when you are not using cruise, you might hit a button and go into cruise when you do not want to. You could be startled and even lose control. Keep the cruise control switch off until you want to use cruise control. 1. Move the cruise control switch to on. 2. Get up to the speed desired. 3. Press Resuming a Set Speed If the cruise control is at the set speed desired and then the brake is applied, the cruise control is disengaged. But it does not need to be reset. Once the vehicle speed reaches about 40 km/h (25 mph) or more, move the cruise control switch briefly from R to S . The vehicle will go back up to your chosen speed and stay there. If the switch is held at resume/accelerate the vehicle keeps going faster until the switch is released or the brake is applied. Do not hold the switch at resume/ accelerate, unless you want the vehicle to go faster. T at the end of the lever and release it. 4. Take your foot off the accelerator pedal. 4-13