GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

A clear waterproof sound deadener deflector is used to seal the door inner panel and prevent entry of water into the body. The deflector is secured to the door inner panel with pressure-sensitive adhesive located on the outboard surface of the deflector. This allows the deflector to be peeled back as needed, to service the door components.

  1. Remove the door trim panel. Refer to Front Side Door Trim Panel Replacement .

  2. Object Number: 748356  Size: SH
  3. Remove the front door radio speaker (5), if sedan. Refer to Radio Front Side Door Speaker Replacement in Entertainment.
  4. Remove the armrest bracket (3). Refer to Armrest Bracket Replacement .
  5. Disconnect the power rear view mirror electrical connector, if equipped.
  6. Pull the water deflector from the door.

Installation Procedure


    Object Number: 748356  Size: SH
  1. Route the electrical connectors through the existing holes in the water deflector.
  2. Install the water deflector to the door inner panel by aligning it to the door. Use a roller around the periphery of the deflector to ensure the proper seating.
  3. Install the front door radio speaker (5). Refer to Radio Front Side Door Speaker Replacement in Entertainment.
  4. Install the armrest bracket (3). Refer to Armrest Bracket Replacement .
  5. Connect the power rear view mirror electrical connector, if equipped.
  6. Install waterproof tape to any damaged areas of the deflector.
  7. Install the door trim panel. Refer to Front Side Door Trim Panel Replacement .