GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Caution: Refer to SIR Handling Caution in the Preface section.

  1. Remove the radio/tape player. Refer to Radio Replacement in Entertainment.

  2. Object Number: 156085  Size: SH
  3. Remove the Heating and A/C control (H-A/C) screws.
  4. Disconnect the H-A/C control electrical connections.

  5. Object Number: 156086  Size: SH
  6. Remove the H-A/C control.
  7. Continue with the following procedures if:

    • If servicing the H-A/C control indicator bulbs.
    • If servicing the H-A/C control bracket.
    • If servicing the Printed Circuit Board (PCB).

    Object Number: 156087  Size: SH
  8. Perform the following steps to remove the H-A/C control from the bracket:
  9. 5.1. Depress the tabs (1) on the side of the control face to release the H-A/C from the bracket.
    5.2. Slide the H-A/C out of the bracket.

    Object Number: 156089  Size: SH
  10. Use a flat-bladed tool to turn the H-A/C control indicator bulbs counterclockwise to remove the H-A/C control indicator bulbs from the H-A/C control.
  11. Remove the PCB from the H-A/C control.
  12. Remove the ribbon from the H-A/C control.

Installation Procedure

  1. If applicable, install the PCB to the H-A/C control.
  2. Install the ribbon to the H-A/C control.

  3. Object Number: 156089  Size: SH
  4. Use a flat-bladed tool to turn the H-A/C control indicator bulbs clockwise to install the H-A/C control indicator bulbs to the H-A/C control.

  5. Object Number: 156088  Size: SH
  6. Perform the following steps to install the H-A/C control to the bracket:
  7. 4.1. Slide the PCB into the slot.
    4.2. Snap the H-A/C control face into the bracket.

    Object Number: 156086  Size: SH
  8. Install the H-A/C control.
  9. Connect the H-A/C control electrical connectors.

  10. Object Number: 156085  Size: SH
  11. Install the H-A/C control screws.
  12. Tighten
    Tighten the H-A/C control screws until fully seated and not stripped the H-A/C control screws.

  13. Install the radio/tape player. Refer to Radio Replacement in Entertainment.
  14. Program the H-A/C control with a scan tool by selecting the programming procedure from the Air Conditioning Special Functions menu and follow the instructions on the screen.