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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1256 (CRUISE CONTROL SYSTEM)REPAIR INSTRUCTIONSCRUISE RELEASE SWITCH ADJUSTMENT
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Cruise Release Switch Adjustment

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Cruise Release Switch Adjustment
WARNING: This page is about a different car, the 2003 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Important:  The cruise control release switch and the stop lamp switch are adjusted together. Incorrect adjustment of either of these switches may cause premature brake lining wear or the incorrect operation of the cruise control system.

  1. Remove the left instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in Instrument Panel, Gages and Console.
    Fig 1: View of Cruise Control Release Switch on Brake Pedal
    G01503797Courtesy of GENERAL MOTORS CORP.
  2. Press the brake pedal fully.
  3. Push the switches into the retainers until the switches are fully seated.
  4. Pull the brake pedal fully rearward against the pedal stop until the audible clicks can no longer be heard.
  5. Measure the brake pedal travel distances from the centerline of the brake pedal pad. Compare the measurements to the following values. The comparison of the values can verify that the cruise control release switch and the stop lamp switch are correctly adjusted:
    • The cruise control release switch and the stop lamp switch contacts must actuate at 3.5-12.5 mm (0.125-0.500 in) of brake pedal travel.
    • Nominal actuation of the stop lamp switch contacts occurs about 4.5 mm (0.2 in) beyond the point of cruise control release switch actuation.
      Fig 2: Pressing Brake Pedal Against Pedal Stop
      G01503798Courtesy of GENERAL MOTORS CORP.
  6. Install the left instrument panel insulator. Refer to CLOSEOUT/INSULATOR PANEL REPLACEMENT - LEFT in Instrument Panel, Gages and Console.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.