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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1501 (Interior Trim) >> Repair Instructions >> Headliner Replacement (Trailblazer EXT, Envoy XL) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure the ignition switch is in the LOCK position.
  2. Remove the cargo net, if equipped.
  3. Remove the luggage/cargo shelf assembly, if equipped.
  4. Remove the right sound insulator panel. Refer to Closeout/Insulator Panel Replacement - Instrument Panel (I/P) Lower (GMC/Chevrolet in Instrument Panel, Gages, and Console.
  5. Remove the front door sill plates. Refer to DOOR SILL PLATE REPLACEMENT-Front .
  6. Remove the rear door sill plates. Refer to Door Sill Plate Replacement - Rear (TrailBlazer, Envoy, Bravada)  or Door Sill Plate Replacement - Rear (TrailBlazer EXT, Envoy XL) .
    7. NOTE: Remove the headliner and the headliner harness as an assembly. Do NOT cut or splice the headliner harness. Cutting or splicing the harness may damage the coax cable, resulting in poor radio performance.
  7. Remove the center pillar trim panels. Refer to GARNISH MOLDING REPLACEMENT-Center Pillar .
  8. Remove the windshield garnish moldings. Refer to Garnish Molding Replacement - Windshield Pillar .
  9. Remove the instrument panel (IP) trim pad. Refer to Trim Pad Replacement - Instrument Panel (I/P) Upper in Instrument Panel, Gages, and Console.
    10. Fig 1: View Of Radio Antenna Cable To Radio Extension Cable
    GM734416Courtesy of GENERAL MOTORS CORP.
  10. Open the IP compartment door and lower the door to the full down position.
  11. Disconnect the coax cable (2) and the headliner harness electrical connector (1), located near the bottom of the HVAC blower motor.
    12. Fig 2: Lower Rosebud And Headliner Harness Clips
    GM742811Courtesy of GENERAL MOTORS CORP.
  12. Remove the lower rosebud (2) that fastens the headliner harness to the cowl.
  13. Remove the 3 clips (1) retaining the headliner harness to the right windshield pillar.
  14. Attach a mechanic's wire to the end of the headliner harness.
  15. The wire harness is routed through the cowl insulation access hole, behind the IP. In order to remove the wire harness, grasp the headliner harness near the bottom of the windshield and carefully pull upward.
  16. Leaving the mechanic's wire positioned behind the IP, remove the headliner harness from the mechanics wire.
  17. Remove the front and rear overhead console, If equipped. Refer to OVERHEAD CONSOLE REPLACEMENT-Front  or OVERHEAD CONSOLE REPLACEMENT-Rear .
  18. Remove the video display, if equipped. Refer to Video Display Replacement .
  19. Remove the sunshades from the headliner. Refer to Sunshade Replacement .
  20. Remove the sunshade retainer clips.
  21. Remove the third row seats.
  22. Remove the second row seats. Refer to Seat Replacement - Rear No. 1 (TrailBlazer EXT, Envoy XL) in Seats.
  23. Remove the left/right front body side window garnish molding. Refer to Garnish Molding Replacement - Body Side Window - Front (TrailBlazer EXT, Envoy XL) .
  24. Remove the left/right rear body side window garnish molding. Refer to Garnish Molding Replacement - Body Side Window - Rear (TrailBlazer EXT, Envoy XL) .
  25. Remove the lift gate door sill plate. Refer to DOOR SILL PLATE REPLACEMENT-Lift Gate .
  26. Remove the left rear quarter lower trim panel. Refer to Trim Panel Replacement - Rear Quarter - Left (TrailBlazer, Envoy, Bravada) Trim Panel Replacement - Rear Quarter - Left (TrailBlazer EXT, Envoy XL) .
  27. Remove the right rear quarter lower trim panel. Refer to TRIM PANEL REPLACEMENT-REAR QUARTER-Right (TrailBlazer, Envoy, Bravada)  or Trim Panel Replacement - Rear Quarter - Right (TrailBlazer EXT, Envoy XL) .
  28. Remove the bolts from the cargo tie-down loops.
    29. Fig 3: Locating Stowage Jack Carrier To Wheelhouse Panel Nut
    GM798354Courtesy of GENERAL MOTORS CORP.
  29. Remove the nut (1), securing the stowage jack carrier to the wheelhouse panel.
  30. Loosen the three bolts that secure the jack carrier to the vehicle.
  31. Remove the carpet from around the wheel stud.
  32. Remove the body electrical block. Refer to Rear Electrical Center or Junction Block Replacement in Wiring Systems.
    33. Fig 4: Locating Left Wheelhouse Panel Stud
    GM798360Courtesy of GENERAL MOTORS CORP.

  33. Peel the carpet forward and up over the front seats. Note that the carpet hooks around the wheel house panel stud.

    34. Fig 5: Removing/Installing Headliner Harness
    GM798356Courtesy of GENERAL MOTORS CORP.
  34. Remove the headliner harness from the left-hand third pillar.
  35. Remove the headliner harness from the floor studs.
  36. Remove the third pillar headliner harness electrical connector from the body electrical block, and the block base from the floor panel. Refer to Rear Electrical Center or Junction Block Replacement in Wiring Systems.
    37. Fig 6: 6-Way Headliner Harness Electrical Connector
    GM828099Courtesy of GENERAL MOTORS CORP.
  37. Reach underneath the carpet and disconnect the 6 - way headliner harness electrical connector (1) from the cross-body wire harness.
    38. Fig 7: Navigational Antenna Cable Location
    GM798355Courtesy of GENERAL MOTORS CORP.
  38. Remove the navigational antenna cable from the right-hand third pillar.
  39. Remove the navigational antenna cable from the floor studs.
  40. Pull the communication interface module electrical connectors back through the hole in the carpet.
  41. Remove the cellular antenna coax cable from the inner coupling on the left body side window. Refer toCoupling Replacement - Antenna Inner .
  42. Remove the coat hooks from the roof panel. Refer to Coat Hook Replacement .
  43. Disconnect the antenna module electrical connector from the right and left body side windows. Refer to Radio Control Module Replacement in Entertainment.
    44. Fig 8: Right-Hand Body Side Window Actuator Electrical Connector
    GM798357Courtesy of GENERAL MOTORS CORP.
  44. Disconnect the electrical connector from the right-hand body side window actuator.
  45. Disconnect the electrical connector from the left-hand body side window actuator.
    46. Fig 9: Identifying Electrical Connections At Inside Rear View Mirror
    GM828097Courtesy of GENERAL MOTORS CORP.
  46. Remove the windshield rearview mirror wire harness cover.
  47. Disconnect the inside rear view mirror electrical connector (3).
  48. Disconnect the rain sensor electrical connector (2), if equipped.
  49. Disconnect the coax cable (1) from the navigational antenna, if equipped.
    50. Fig 10: Removing/Installing Auxiliary Air Conditioning Duct
    GM828095Courtesy of GENERAL MOTORS CORP.
  50. Remove the bolt securing the auxiliary air conditioning duct to the vehicle.
    51. Fig 11: Rear Push Pins, Retaining Strips, Headliner Harnesses And Sunshade Retaining Clips
    GM798358Courtesy of GENERAL MOTORS CORP.
  51. Remove the 2 push pins (2,3) from the rear of the headliner.
  52. Release the assist handles from the roof panel. Refer to Assist Handle Replacement .
  53. With the aid of an assistant, lower the headliner to release the interlocking strips (1) that retain the headliner to the roof panel.
    54. Fig 12: Accessing Sunroof Assembly Electrical Connector
    GM749612Courtesy of GENERAL MOTORS CORP.
  54. If the vehicle is equipped with a sunroof, partially lower the headliner and disconnect the sunroof assembly electrical connector.
  55. With the aid of an assistant, remove the headliner from the vehicle.
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