GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove IP Carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages and Console.
  2. Remove the retaining screws from the heater/vent module cover.
  3. Remove the heater/vent cover from heater/vent module.
  4. Remove the defroster door linkage and actuator. Refer to Defroster Valve Actuator Replacement .

  5. Object Number: 691843  Size: SH
  6. Remove the defroster door (2) door from the heater/vent module (1).

Installation Procedure


    Object Number: 691843  Size: SH
  1. Install the defroster door (2) to the heater/vent module (1).
  2. Install the defroster door linkage and actuator. Refer to Defroster Valve Actuator Replacement
  3. Install the heater/vent module cover to the heater/vent module.
  4. Install the retaining screws to the heater/vent cover.
  5. Tighten
    Tighten screws to 1.9 N·m (17 lb in).

  6. Install the IP carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages and Console.