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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (Floor Coverings And HEADLININGS) >> Repair Instructions >> Headlining Trim Panel Replacement (Sedan With Sunroof) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Roof Console & Backing Plate Screws
    GM2834604Courtesy of GENERAL MOTORS COMPANY
  1. On a clean flat surface, map wiring harness routing using the old trim panel as a template.
  2. Once the harness has been mapped on the trim panel, ensure all the electrical connectors are made. Glue the harness to the new trim panel.
  3. With the aid of an assistant, position the headliner trim panel assembly (2) into the vehicle through the front windshield.
  4. Install the two screws (1) to the front portion of the headliner at the roof console backing plate.
  5. Connect the electrical connectors to the headliner trim panel assembly (1) and secure.
    6. Fig 2: Rear Window Panel Trim
    GM2834047Courtesy of GENERAL MOTORS COMPANY
  6. Install the rear window panel trim (2). Refer to Rear Window Panel Trim Replacement (Sedan) .
    7. Fig 3: Center Pillar Upper Trim Panel
    GM2832935Courtesy of GENERAL MOTORS COMPANY
  7. Install the center pillar upper trim panel assembly (1). Refer to Center Pillar Upper Trim Panel Replacement (Sedan) .
    8. Fig 4: Windshield Garnish Assist Molding
    GM2832514Courtesy of GENERAL MOTORS COMPANY
  8. Install the windshield garnish molding assembly (1). Refer to Windshield Garnish Molding Replacement .
    9. Fig 5: Roof Console Assembly
    GM2748823Courtesy of GENERAL MOTORS COMPANY
  9. Install the roof console assembly (1). Refer to Roof Console Replacement .
    10. Fig 6: Roof Rail Rear Seat Position Reading & Courtesy Lamp
    GM2755928Courtesy of GENERAL MOTORS COMPANY
  10. Install the roof rail rear seat position reading and courtesy lamp (1). Refer to Roof Rail Rear Seat Position Reading and Courtesy Lamp Replacement .
    11. Fig 7: Roof Rail Assist Handle
    GM2832394Courtesy of GENERAL MOTORS COMPANY
  11. Install the roof rail assist handle assembly (2). Refer to Roof Rail Assist Handle Replacement (Sedan) .
    12. Fig 8: Sunshade Support
    GM2832512Courtesy of GENERAL MOTORS COMPANY
  12. Install the sunshade support assembly (2). Refer to Sunshade Support Replacement .
    13. Fig 9: Sunshade
    GM2832509Courtesy of GENERAL MOTORS COMPANY
  13. Install the sunshade assembly (3). Refer to Sunshade Replacement .
  14. Enable the SIR system. Refer to SIR Disabling and Enabling .
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