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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 49 (Floor Coverings And HEADLININGS) >> Repair Instructions >> Headlining Trim Panel Replacement (With CF5) >> Installation Procedure

Installation Procedure

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  1. GM5504510Courtesy of GENERAL MOTORS COMPANY

    Install the headliner wiring harness, if necessary.

    • Lay the wiring harness on the new headlining trim panel (2) to confirm correct routing and ensure harness leads are proper length for mating connections prior to gluing.
    • Use hot melt adhesive to install the wiring harness. Adhesives, Fluids, Lubricants, and Sealers 
    • Apply insulator tape over glued locations to prevent squeaks and rattles as needed.
  2. With the aid of an assistant, position the headlining trim panel (2) into the vehicle through the front windshield.
  3. Connect the electrical connectors.
  4. Engage the two retainers (1) at the rear underside of the headlining trim panel (2).
  5. Push on headlining trim panel (2) around sunroof opening to seat the retainers.
  6. Windshield - Install - Windshield Replacement
  7. GM5433861Courtesy of GENERAL MOTORS COMPANY

    Apply pressure upward on the high mount stop lamp cover (1) to engage the retaining tabs.

  8. Ensure the retaining tabs have engaged and the high mount stop lamp cover (1) is fully seated to the headlining trim panel (2).
  9. High Mount Stop Lamp Opening Cover (1) - Install
  10. GM5494007Courtesy of GENERAL MOTORS COMPANY

    Quarter Upper Trim Panel (1) - Install [2x]

  11. GM5494006Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Quarter Window Trim Finish Panel Bolt (2) - Install and tighten [2x] - Fastener Specifications

  12. Quarter Window Trim Finish Panel Bolt Cap (1) - Install [2x]
  13. GM5494005Courtesy of GENERAL MOTORS COMPANY

    Center Pillar Upper Trim Panel (1) - Install [2x]

  14. GM5494003Courtesy of GENERAL MOTORS COMPANY

    Center Pillar Upper Garnish Molding Bolt (2) - Install and tighten [2x] - Fastener Specifications

  15. Center Pillar Upper Trim Panel Bolt Cap (1) - Install [2x]
  16. GM5423135Courtesy of GENERAL MOTORS COMPANY

    Roof Rail Rear Assist Handle (2) - Install [2x]

  17. Roof Rail Rear Assist Handle Bolt (1) - Install and tighten [4x] - Fastener Specifications
  18. GM5423238Courtesy of GENERAL MOTORS COMPANY

    Roof Rail Assist Handle (2) - Install [2x]

  19. Roof Rail Assist Handle Bolt (1) - Install and tighten [4x] - Fastener Specifications
  20. GM5330333Courtesy of GENERAL MOTORS COMPANY

    Windshield Multifunction Sensor Mount Bracket Cover Insert (1) - Install

  21. GM5330339Courtesy of GENERAL MOTORS COMPANY

    Install the windshield multifunction sensor mount bracket cover (1) ensuring the retaining tabs are fully seated.

  22. GM5334280Courtesy of GENERAL MOTORS COMPANY

    Install the roof console (1) and front roof console tab into the headliner.

  23. GM5334770Courtesy of GENERAL MOTORS COMPANY

    Push up both sides of the roof console (1) along the retaining clips to install.

  24. GM5423271Courtesy of GENERAL MOTORS COMPANY

    Sunshade Support (2) - Install [2x]

  25. Sunshade Support Bolt (1) - Install and tighten [2x] - Fastener Specifications
  26. GM5423272Courtesy of GENERAL MOTORS COMPANY

    Connect the electrical connectors.

  27. Sunshade (3) - Install [2x]
  28. Sunshade Bolt (2) - Install and tighten [4x] - Fastener Specifications
  29. Sunshade Retainer Bolt Cover (1) - Install
  30. GM5423347Courtesy of GENERAL MOTORS COMPANY

    Windshield Garnish Molding (1) - Install [2x]

  31. Connect the electrical connectors.
  32. Windshield Garnish Molding Bolt (2) - Install and tighten [2x] - Fastener Specifications
  33. Enable the SIR System. SIR Disabling and Enabling
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