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Home >> GMC >> 2021 >> Yukon XL AT4 >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Bolted Exterior Body Panels And Closures >> Repair Instructions >> Plenum Front Panel Outer Reinforcement Replacement >> Removal Procedure

Removal Procedure

  1. GM5522078Courtesy of GM

    Using the appropriate trim tool, remove the 2 windshield wiper arm finish caps (1) from both windshield wiper arms (3).

  2. Windshield Wiper Arm Nut (2) - Remove [2x]
  3. Grasp the outer end of the windshield wiper arm (3) and gently rock the arm back and forth to remove it from the left and right side windshield wiper transmission pivot shaft.
  4. GM5532143Courtesy of GM

    Hood Rear Outer Air Inlet Seal Retainer (1) - Remove [2x]

  5. Hood Rear Outer Air Inlet Seal (2) - Remove [2x]
  6. GM5628133Courtesy of GM
    NOTE:

    Quantity of retainers may vary based on option content.

    Apply two layers of masking tape around the top edge of the service part to prevent paint damage.

  7. Using a suitable plastic trim tool, carefully release the 3 air inlet grille panel extension clips.
  8. Air Inlet Grille Panel Extension (1) - Remove [2x]
  9. GM5531724Courtesy of GM

    Air Inlet Grille Panel Retainer (1) - Remove [8x]

  10. Disconnect the windshield washer nozzle hose from the windshield washer pump hose.
  11. Lift the front edge of the air inlet grille panel (2) and slide the panel forward from both hood hinges to remove.
  12. GM5537718Courtesy of GM

    Windshield Wiper System Module Shield (1) - Remove

    13. NOTE:

    To prevent erroneous DTC's, disconnect the battery negative cable before disconnecting the windshield wiper motor electrical connector.

  13. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (KL9)
  14. GM5537717Courtesy of GM

    Release the retainers.

  15. Windshield Wiper System Module Bolt (1) - Remove [2x]
  16. Slide the windshield wiper system module (2) inboard to release the grommet from the plenum and flip the windshield wiper system module upside down to gain access to the electrical connector.
  17. Push electrical connector together to unload the latch system. Then using a small pick or small flat bladed tool, lightly pry down and outboard on the locking tab (3) and pull the electrical connector away from the module mating connector. Do NOT attempt to pry anywhere else on the connector body or damage can occur.
  18. Verify the electrical connector and the windshield wiper system module mating connector (3) are not damaged.
  19. Windshield Wiper System Module (2) - Remove
  20. GM5571482Courtesy of GM

    Plenum Front Panel Bolt (1) - Remove [3x]

  21. Plenum Front Panel Nut (2) - Remove [3x]
  22. GM5571483Courtesy of GM

    Plenum Front Panel Bolt (1) - Remove [2x]

  23. Plenum Front Panel Nut (2) - Remove [3x]
  24. GM5571683Courtesy of GM

    Dash Panel Outer Insulator Retainer (1) - Remove [3x]

  25. Radiator Surge Tank Bolt (2) - Remove
  26. Reposition the radiator surge tank. (3)
  27. GM5040913Courtesy of GM

    Air Conditioning Evaporator and Blower Module Nut (1) - Remove [2x]

  28. Air Inlet Deflector Water Deflector (2) - Remove
  29. Disconnect the electrical connectors and detach the wiring harness as necessary.
  30. GM5571687Courtesy of GM

    Plenum Front Panel Outer Reinforcement (1) - Remove

  31. GM5749868Courtesy of GM

    Dash Panel Outer Insulator Retainer (1) - Remove [2x]

  32. Remove the dash panel outer insulator (2) from the plenum front panel outer reinforcement.
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