GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Windshield Defroster Duct Replacement

Removal Procedure
  1. Remove the instrument panel (I/P) trim pad. Refer to Instrument Panel Upper Trim Pad Replacement.

    2. Object Number: 735924 Size: SH
  2. Remove the retaining screw (4) from the side window defroster duct (3).
  3. Remove the passenger side window defroster duct.
  4. Remove the air distribution duct.

    5. Object Number: 735928 Size: SH
  5. Release locking tabs (2) from the defroster duct (1).
  6. Remove the defroster duct (1).

Installation Procedure

    Object Number: 735928 Size: SH
  1. Install the defroster duct.
  2. Insert defroster duct into retaining slots.

    3. Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 735924 Size: SH
  3. Install the retaining screw (4) to the passenger side window defroster duct (3).

    4. Tighten
    Tighten the nut to 2 N·m (18 lb in).

  4. Install the I/P assembly. Refer to Instrument Panel Carrier Replacement.