GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 588371  Size: SH
  1. Remove the IP trim panel. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages, and Console.
  2. Remove the DRL sensor from the defroster duct by turning 1/4 of a turn.
  3. Remove the two push on retainers holding the defroster duct to the HVAC module assembly.
  4. Remove the defroster duct retainers from the air distribution duct.
  5. Remove the defroster duct.

Installation Procedure


    Object Number: 588371  Size: SH
  1. Align the defroster duct to the air distribution duct and the HVAC module assembly.
  2. Install the retainers on the defroster duct to the air distribution duct.
  3. Install the two push on retainers holding the defroster duct to the HVAC module assembly.
  4. Install the DRL sensor to the defroster duct.
  5. Turn 1/4 turn to lock in position.

  6. Install the IP trim pad. Refer to Instrument Panel Trim Pad Replacement in Instrument Panel, Gages, and Console.