2008 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 192

When the brakes are applied, cruise control is turned off. For vehicles with an Allison® automatic transmission, see "Grade Braking and Cruise Grade Braking (Allison Transmission) under Tow/Haul Mode on page 2-34 for an explanation of how cruise control interacts with the Range Selection Mode, tow/haul and grade braking systems. For vehicles with the StabiliTrak® system that begins to limit wheel spin while you are using cruise control, the cruise control will automatically disengage. See StabiliTrak® System on page 4-6. When road conditions allow the cruise control to be safely used again, it can be turned back on. The cruise control buttons are located on left side of the steering wheel. T (On/Off): This button can both activate and turn off the system. The indicator light is on when cruise control is on and turns off when cruise control is off. + RES (Resume/Accelerate): Press to make the vehicle accelerate or resume to a previously set speed. SET − (Set/Coast): Press to set the speed or make the vehicle decelerate. [ (Cancel): Press to cancel cruise control without erasing the set speed from memory. 3-14