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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 212 (Sunroof) >> Repair Instructions >> Sunroof Housing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disable the SIR system. SIR Disabling and Enabling
  2. GM5423347Courtesy of GENERAL MOTORS COMPANY

    Pull the windshield garnish molding (1) rearwards to release the tether from the A pillar.

  3. Access the windshield garnish bolt (2) which is located on the backside of the windshield garnish molding (1) and secures the tether to the A pillar.
  4. Windshield Garnish Molding Bolt (2) - Remove [2x]
  5. Disconnect the electrical connector.
  6. Windshield Garnish Molding (1) - Remove [2x]
  7. GM5423271Courtesy of GENERAL MOTORS COMPANY

    Open the sunshade support bolt access cover with an appropriate tool.

  8. Sunshade Support Bolt (1) - Remove [2x]
  9. Sunshade Support (2) - Remove [2x]
  10. GM5334276Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Do not exert downward force at the forward or rearward edge of the roof console assembly as irreversible damage will occur.

    With a flat-bladed trim tool, release the tab on the left side at the most rearward of the roof console (1) and pull down on console, then release the retaining clip in the middle of the console and pull down, then release the retaining clip at the most forward of the console and pull down the console.

  11. With a flat-bladed trim tool, release the tab on the right side at the most rearward of the roof console (1) and pull down on console, then release the retaining clip in the middle of the console and pull down, then release the retaining clip at the most forward of the console and pull down the console.
  12. GM5334280Courtesy of GENERAL MOTORS COMPANY

    Pull the roof console (1) rearward to remove the front roof console tab from the headliner.

  13. Disconnect the electrical connectors.
  14. GM5330333Courtesy of GENERAL MOTORS COMPANY

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

  15. GM5330339Courtesy of GENERAL MOTORS COMPANY

    Using a suitable plastic trim tool, carefully pry downward on the windshield multifunction sensor mount bracket cover (1) to release it from the windshield.

  16. Pull downward to remove the windshield multifunction sensor mount bracket cover (1) from the windshield.
  17. GM5423238Courtesy of GENERAL MOTORS COMPANY

    Fold the assist handle downward and hold. (2)

  18. Use a small flat-bladed tool to open the assist handle covers to access the bolts.
  19. Roof Rail Assist Handle Bolt (1) - Remove [8x]
  20. Roof Rail Assist Handle (2) - Remove [4x]
  21. GM5494003Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Use care when working around the head curtain inflator module. Sharp tools may puncture the curtain airbag. If the head curtain inflator module is damaged in any way, it must be replaced.

    Center Pillar Upper Trim Panel Bolt Cap (1) - Remove

  22. Center Pillar Upper Garnish Molding Bolt (2) - Remove
  23. GM5494005Courtesy of GENERAL MOTORS COMPANY

    Pull the trim panel toward the inside of the vehicle to disengage the retainers on both sides of the vehicle.

  24. Center Pillar Upper Trim Panel (1) - Reposition [2x]
  25. GM5423272Courtesy of GENERAL MOTORS COMPANY

    Sunshade Retainer Bolt Cover (1) - Remove [2x]

  26. Sunshade Bolt (2) - Remove [4x]
  27. Sunshade (3) - Remove [2x]
    1. Squeeze the tabs at the base of the sunshade to detach it from the roof panel and allow the headliner with the sunshade attached to be lowered.
    2. Disconnect the electrical connector.
    3. Release the retainer attaching the sunshade to the headlining trim panel.
  28. GM5494006Courtesy of GENERAL MOTORS COMPANY

    Fold the rear seat back to the downward position.

  29. Quarter Window Trim Finish Panel Bolt Cap (1) - Remove [2x]
  30. Quarter Window Trim Finish Panel Bolt (2) - Remove [2x]
  31. GM5494007Courtesy of GENERAL MOTORS COMPANY

    Disengage the retainers, starting at the front and working rearward on both sides of the vehicle.

  32. NOTE:

    The Quarter Upper Trim Panel does not need to be fully removed from the vehicle.

  33. Quarter Upper Trim Panel (1) - Reposition [2x]
  34. Open the sunroof sunshade.
  35. GM5461936Courtesy of GENERAL MOTORS COMPANY

    Sunroof Air Deflector Cover- Left Side (1) - Remove

  36. GM5461937Courtesy of GENERAL MOTORS COMPANY

    Sunroof Air Deflector Cover- Right Side (1) - Remove

  37. GM5461938Courtesy of GENERAL MOTORS COMPANY

    Sunroof Window Bolt (1) - Remove [4x]

  38. Sunroof Window (2) - Remove
  39. Passenger Seat - Remove - Front Seat Removal and Installation , or Front Seat Removal and Installation (Blackwing)
  40. Place the driver seat in the fully reclined position.
  41. GM5471903Courtesy of GENERAL MOTORS COMPANY

    Lower the headlining trim panel (1).

  42. GM5471904Courtesy of GENERAL MOTORS COMPANY

    Disconnect the sunroof housing front drain hoses (1) from the front sunroof housing drain gutters.

  43. GM5471906Courtesy of GENERAL MOTORS COMPANY

    Disconnect the sunroof housing rear drain hoses (1) from the rear sunroof housing drain gutters.

  44. GM5471907Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connectors.

  45. Remove the 6 sunroof module bolts (1), leaving the side 2 centermost sunroof module bolts (2) installed.
  46. GM5471908Courtesy of GENERAL MOTORS COMPANY

    Tilt the headlining trim panel (1).

  47. GM5471909Courtesy of GENERAL MOTORS COMPANY

    With the aid of an assistant, remove the 2 remaining sunroof module bolts (1) and gently lower the sunroof housing (2).

  48. GM5471910Courtesy of GENERAL MOTORS COMPANY

    With the aid of an assistant, carefully remove the sunroof housing (1) and place on a clean prepared surface.

  49. Transfer components as necessary.