Cruise Control Description and Operation: Notes

1999 GMC Forward Control 5.7 R, AutomaticSECTION Notes
WARNING: This page is about a different car, the 2003 Saturn Vue. 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 accelerator pedal
  • The clutch start switch, if equipped with a manual transmission
  • The engine control module (ECM)
  • The on/off switch
  • The resume/accel switch
  • The set/coast switch
  • The cruise/brake switch
  • The stop lamp switch
  • The throttle actuator control (TAC) motor
  • The vehicle speed sensor
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