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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Cellular, Entertainment, And Navigation - Repair Instructions) >> Repair Instructions >> Radio Rear Surround Speaker 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.
WARNING:

Refer to SIR Warning .

  1. Disable the SIR system. SIR Disabling and Enabling
  2. GM5544148Courtesy of GENERAL MOTORS COMPANY

    Rear Seat Cushion (1) - Remove - Rear Seat Cushion Removal and Installation

  3. GM5404968Courtesy of GENERAL MOTORS COMPANY

    Fold the rear seat back to the downward position.

  4. Access the rear seat back bolster retainer lock (1) through a slot in the upper portion of the bolster.
  5. Slide the rear seat back bolster retainer lock (1) toward the front of the vehicle.
  6. GM5324688Courtesy of GENERAL MOTORS COMPANY

    Rear Seat Back Bolster Nut (1) - Remove

  7. Squeeze the rear seat back bolster retainer to release it.
  8. Rear Seat Back Bolster (2) - Remove
  9. GM5474407Courtesy of GENERAL MOTORS COMPANY

    Fold the rear seat back to the downward position.

  10. Use a flat bladed plastic trim tool to remove the quarter window trim finish panel bolt cap (1) on both sides.
  11. Quarter Window Trim Finish Panel Bolt (2) - Remove [2x]
  12. Disengage the retainers, starting at the front and working rearward.
  13. NOTE:

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

  14. Quarter Upper Trim Panel (3) - Remove [2x]
  15. GM5482696Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Use a flat-bladed plastic trim tool to aid in removal of the rear window panel retainers (1) from the rear window panel trim (2).

    Rear Window Panel Trim Retainer (1) - Remove [3x]

  16. GM5482736Courtesy of GENERAL MOTORS COMPANY

    Rear Window Panel Trim (1) - Remove

    1. Release the rear center seat belt opening bezel from the rear center seat belt retractor.
    2. Lift up on the rear window panel trim (1) to release the retainers under the forward portion of the panel trim.
    3. Route the center seat belt webbing, buckle, and bezel through the trim (1).
    4. With the aid of an assistant, guide the rear window panel forward in the vehicle and upwards to clear the speaker system.
  17. GM5437448Courtesy of GENERAL MOTORS COMPANY

    Radio Rear Surround Speaker Bolt (1) - Remove

  18. Radio Rear Surround Speaker (2) - Remove
  19. Disconnect the electrical connector.