GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 588371  Size: SH
  1. Remove the instrument panel (IP) carrier panel. Refer to Instrument Panel Carrier Replacement in Instrument Panel, Gauges and Console.
  2. Remove the daytime running lights (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.
  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.
  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.
  4. Install the DLR sensor to the defroster duct.
  5. Turn 1/4 turn to lock in position.

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