GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1640435  Size: SH
  1. Remove the instrument panel (I/P) sound insulator. Refer to Instrument Panel Insulator Replacement.
  2. Remove the cruise control release switch from the switch retainer. Rotate the switch counterclockwise to release the switch.
  3. Disconnect the cruise control release switch electrical connector.
  4. Remove the switch retainer from the pedal bracket, if necessary.

Installation Procedure


    Object Number: 1640435  Size: SH
  1. Install the switch retainer to the pedal bracket with the retainer indexing arrow facing down, if previously removed.
  2. Connect the cruise control release switch electrical connector.
  3. Pull back lightly on the brake pedal to ensure the system is fully released.
  4. While lightly holding the pedal, install and adjust the cruise release switch:
  5. 4.1. Insert the cruise release switch into the retainer.
    4.2. Ensure the switch plunger is fully depressed against the switch contact rubber bumper without deflecting the bracket or the switch contact arm on the pedal.
    4.3. Rotate the switch clockwise to secure the switch in the retainer.

    Object Number: 738588  Size: SH
  6. Release the brake pedal and inspect the switch barrel to switch contact rubber bumper clearance (1).
  7. Specification
    Clearance should not exceed 1.2 mm (0.047 in).

  8. Ensure the following contacts open at 25.4 mm (1 in) or less of pedal travel:
  9. • The cruise release switch.
    • The stop lamp and torque converter clutch (TCC) switch.
  10. Ensure the switches open simultaneously or before the onset of braking.
  11. The brake pedal may travel up to 25.4 mm (1 in) before the cruise control system disengages.
  12. Install the I/P sound insulator. Refer to Instrument Panel Insulator Replacement.