Installation Procedure

2021 GMC Yukon Denali, 3.0L Eng VIN T, 4WDSECTION Installation Procedure
  1. GM5535461Courtesy of GENERAL MOTORS COMPANY

    Communication Interface Module Microphone (2) - Install

  2. Communication Interface Module Microphone Bezel Plate (1) - Install
  3. Secure the retaining tabs.
  4. Connect the electrical connector.
  5. Use hot melt adhesive to install the communication interface module microphone harness. Adhesives, Fluids, Lubricants, and Sealers
  6. Apply insulator tape over glued locations to prevent squeaks and rattles as needed.
  7. GM5600094Courtesy of GENERAL MOTORS COMPANY

    Headlining Trim Panel (1) - Install

  8. GM5551478Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Center Pillar Upper Trim Panel- Right Side (3) - Install

  9. CAUTION:

    Refer to Fastener Caution .

  10. Center Pillar Upper Garnish Molding Bolt - Right Side (2) - Install and tighten - Fastener Specifications
  11. Center Pillar Upper Trim Panel Bolt Cap- Right Side (1) - Install
  12. GM5551298Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Left side shown, right side similar.

    Align 6 retaining clips (2) with the upper and lower trim panels.

  13. Center Pillar Center Trim Panel (1) - Install
  14. GM5581770Courtesy of GENERAL MOTORS COMPANY

    Connect the electrical connectors.

  15. Roof Console (3) - Install
  16. Roof Console Bolt (2) - Install and tighten [ 2x ] - Fastener Specifications
  17. Roof Console Opening Trim Plate (1) - Install
  18. GM5605777Courtesy of GENERAL MOTORS COMPANY

    Sunshade Bolt (2) - Install and tighten [ 3x ] - Fastener Specifications

  19. Sunshade Retainer Bolt Cover (1) - Install
  20. GM5606277Courtesy of GENERAL MOTORS COMPANY

    Roof Rail Assist Handle (2) - Install

  21. Roof Rail Assist Handle Bolt (1) - Install and tighten [ 2x ] - Fastener Specifications
  22. GM5605112Courtesy of GENERAL MOTORS COMPANY

    Connect the electrical connector.

  23. Windshield Garnish Molding Bolt (2) - Install and tighten - Fastener Specifications
  24. Align the retaining clips with the slots in the A pillar and press the windshield garnish molding (1) into place.
  25. Windshield Garnish Molding (1) - Install
  26. Reposition the weatherstrip as necessary.
  27. GM5606276Courtesy of GENERAL MOTORS COMPANY

    Sunshade Support Bolt (1) - Install and tighten - Fastener Specifications

  28. Close the sunshade support bolt access cover.
  29. Enable the SIR System. SIR Disabling and Enabling
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.