Cruise Control Description and Operation (4.8L, 5.3L, 6.0L, and 8.1L): Notes
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Cruise control is a speed control system that maintains a desired vehicle speed under normal driving conditions at vehicle speeds above 40 km/h (25 mph). Steep grades may cause variations in the selected vehicle speeds.
The following are the main components of the Cruise Control System:
- The powertrain control module (PCM)
- The On/Off switch
- The Resume/Accel switch
- The Set/Coast switch
- The TCC/brake switch
- The stop lamp switch
- The throttle actuator control (TAC) module
- The Clutch Pedal Position (CPP) switch, if equipped with a manual transmission
- The vehicle speed sensor (VSS)