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Installation Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Connect the defroster actuator pushrod to the defrost door lever.
    Fig 1: Connecting Defroster Actuator Pushrod To Defrost Door Lever
    G01418990Courtesy of GENERAL MOTORS CORP.
  2. Position the actuator along side of the passenger SIR bracket in line with the mounting pins on the HVAC module case.
  3. Carefully rotate the actuator past the passenger SIR bracket, rearward and downward, until the actuator slots align with the HVAC module mounting pins.
  4. Inspect that the actuator pushrod is not binding on the defrost door lever.
  5. Push the actuator toward the HVAC module case to secure the retaining tab.
    Fig 2: Installing Defroster Actuator Retaining Tab
    G01418991Courtesy of GENERAL MOTORS CORP.
  6. Remove the flat bladed tool maintaining the defrost door lever in position.
    Fig 3: Removing Flat Bladed Tool
    G01418992Courtesy of GENERAL MOTORS CORP.
  7. Connect the vacuum harness connectors to the defroster actuator.
  8. Position and connect the RH side window defogger lower outlet duct to the windshield defroster duct.
  9. Install the I/P upper trim pad. Refer to TRIM PAD REPLACEMENT - INSTRUMENT PANEL (I/P) UPPER in Instrument Panel, Gages and Console.
  10. Recalibrate the actuators. Refer to RE-CALIBRATING ACTUATORS  .
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