GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

The defroster actuator is located on the right side of the heater assembly.


    Object Number: 394022  Size: SH
  1. Remove the instrument panel. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages and Console.
  2. Disconnect the vacuum hose from the defroster actuator.
  3. Carefully pry back the defroster actuator retaining tab with a screwdriver and remove the defroster actuator.

Installation Procedure


    Object Number: 394022  Size: SH
  1. Install the defroster actuator to the heater assembly.
  2. Connect the vacuum hose to the defroster actuator.
  3. Install the instrument panel carrier. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gages and Console.