GM Service Manual Online
For 1990-2009 cars only

Adjustment Procedure

  1. Remove the center trim bezel. Refer to Instrument Panel Accessory Bezel Replacement in Instrument Panel, Gages and Console.
  2. Remove the temperature cable from the HVAC control module.

  3. Object Number: 933637  Size: SH
  4. Center the HVAC module temperature door by aligning the cable lug of the temperature control cable with the center point of the detent spring. Detent spring force should hold the temperature door in the desired position.

  5. Object Number: 933565  Size: SH
  6. Center the temperature cable knob by inserting the assembly alignment tab into the centering slot of the temperature knob shaft.

  7. Object Number: 939709  Size: SH
  8. Install the temperature cable to the HVAC control module by aligning the retention tabs and the temperature knob shaft and snapping into place.
  9. Install the center trim bezel. Refer to Instrument Panel Accessory Bezel Replacement in Instrument Panel, Gages and Console.