GM Service Manual Online
For 1990-2009 cars only

Caution: Do not attempt to repair or alter the head impact energy-absorbing material glued to the headliner or to the garnish trims. If the material is damaged, replace the headliner and/or the garnish trim. Failure to do so could result in personal injury.

Removal Procedure

  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 Instrument Panel Insulator Panel Replacement in Instrument Panel, Gages, and Console.
  5. Remove the front door sill plates. Refer to Front Side Door Sill Plate Replacement .
  6. Remove the rear door sill plates. Refer to Rear Side Door Sill Plate Replacement .
  7. Notice: 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.

  8. Remove the center pillar trim panels. Refer to Center Pillar Garnish Molding Replacement .
  9. Remove the windshield garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement .
  10. Remove the instrument panel (IP) trim pad. Refer to Instrument Panel Upper Trim Pad Replacement in Instrument Panel, Gages, and Console.

  11. Object Number: 734416  Size: SH
  12. Open the IP compartment door and lower the door to the full down position.
  13. Disconnect the coax cable (2) and the headliner harness electrical connector (1), located near the bottom of the HVAC blower motor.

  14. Object Number: 742811  Size: SH
  15. Remove the lower rosebud (2) that fastens the headliner harness to the cowl.
  16. Remove the 3 clips (1) retaining the headliner harness to the right windshield pillar.
  17. Attach a mechanic's wire to the end of the headliner harness.
  18. 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.
  19. Leaving the mechanic's wire positioned behind the IP, remove the headliner harness from the mechanics wire.
  20. Remove the front overhead console, If equipped . Refer to Roof Console Replacement .
  21. Remove the sunshades from the headliner. Refer to Sunshade Replacement .
  22. Remove the sunshade retainer clips.
  23. Remove the third row seats.
  24. Remove the second row seats. Refer to Rear Seat Replacement in Seats.
  25. Remove the left/right front body side window garnish molding. Refer to Body Side Rear Window Garnish Molding Replacement .
  26. Remove the left/right rear body side window garnish molding. Refer to Body Side Window Rear Garnish Molding Replacement .
  27. Remove the lift gate door sill plate. Refer to Liftgate Door Sill Plate Replacement .
  28. Remove the left rear quarter lower trim panel. Refer to Rear Quarter Trim Panel Replacement - Left Side .
  29. Remove the right rear quarter lower trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side .
  30. Remove the bolts from the cargo tie-down loops.

  31. Object Number: 798354  Size: SH
  32. Remove the nut (1), securing the stowage jack carrier to the wheelhouse panel.
  33. Loosen the three bolts that secure the jack carrier to the vehicle.
  34. Remove the carpet from around the wheel stud.
  35. Remove the body electrical block. Refer to Rear Electrical Center or Junction Block Replacement in Wiring Systems.

  36. Object Number: 798360  Size: SH
  37. Peel the carpet forward and up over the front seats. Note that the carpet hooks around the wheel house panel stud.

  38. Object Number: 798356  Size: SH
  39. Remove the headliner harness from the left-hand third pillar.
  40. Remove the headliner harness from the floor studs.
  41. 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.

  42. Object Number: 828099  Size: SH
  43. Reach underneath the carpet and disconnect the 6 - way headliner harness electrical connector (1) from the cross-body wire harness.

  44. Object Number: 798355  Size: SH
  45. Remove the navigational antenna cable from the right-hand third pillar.
  46. Remove the navigational antenna cable from the floor studs.
  47. Pull the communication interface module electrical connectors back through the hole in the carpet.
  48. Remove the cellular antenna coax cable from the inner coupling on the left body side window. Refer to Mobile Telephone Antenna Inner Coupling Replacement .
  49. Remove the coat hooks from the roof panel. Refer to Coat Hook Replacement .
  50. Disconnect the antenna module electrical connector from the right and left body side windows. Refer to Radio Control Module Replacement in Entertainment.

  51. Object Number: 798357  Size: SH
  52. Disconnect the electrical connector from the right-hand body side window actuator.
  53. Disconnect the electrical connector from the left-hand body side window actuator.

  54. Object Number: 828097  Size: SH
  55. Remove the windshield rearview mirror wire harness cover.
  56. Disconnect the inside rear view mirror electrical connector (3).
  57. Disconnect the rain sensor electrical connector (2), if equipped.
  58. Disconnect the coax cable (1) from the navigational antenna, if equipped.

  59. Object Number: 828095  Size: SH
  60. Remove the bolt securing the auxiliary air conditioning duct to the vehicle.

  61. Object Number: 798358  Size: SH
  62. Remove the 2 push pins (2,3) from the rear of the headliner.
  63. Release the assist handles from the roof panel. Refer to Assist Handle Replacement .
  64. With the aid of an assistant, lower the headliner to release the interlocking strips (1) that retain the headliner to the roof panel.

  65. Object Number: 749612  Size: SH
  66. If the vehicle is equipped with a sunroof, partially lower the headliner and disconnect the sunroof assembly electrical connector.
  67. With the aid of an assistant, remove the headliner from the vehicle.

Installation Procedure

  1. With the aid of an assistant, install the headliner into the vehicle.

  2. Object Number: 749612  Size: SH
  3. If the vehicle is equipped with a sunroof, partially raise the headliner and connect the sunroof assembly electrical connector.

  4. Object Number: 798358  Size: SH
  5. With the aid of an assistant, fully raise the headliner and ensure that the retaining strips (1) are engaged, and the headliner harnesses (4) hang free of the headliner.
  6. Install the assist handles to the roof panel. Refer to Assist Handle Replacement .
  7. Install the right rear push pin (2)
  8. Install the left rear push pin (3).
  9. Install the sunshades to the headliner. Refer to Sunshade Replacement .
  10. Install the left and right sunshade retaining clips (5).
  11. Tighten
    Tighten the sunshade retaining clip screws to 10 N·m (88 lb in).


    Object Number: 828095  Size: SH
  12. Install the auxiliary air conditioning duct to the vehicle with the bolt.
  13. Tighten
    Tighten the auxiliary air conditioning duct bolt to 10 N·m (88 lb in).


    Object Number: 828097  Size: SH
  14. Connect the coax cable (1) to the navigation antenna, if equipped.
  15. Connect the rain sensor electrical connector (2), if equipped.
  16. Connect the inside rear view mirror electrical connector (3).
  17. Install the windshield rearview mirror wire harness cover.
  18. If equipped, install the front overhead console. Refer to Roof Console Replacement .

  19. Object Number: 742811  Size: SH
  20. Attach the mechanic's wire to the end of the headliner harness.
  21. Pull the bottom of the mechanic's wire away from the cowl insulation access hole in order to position the headliner harness behind the IP.
  22. Attach the 3 clips (1) securing the wire harness to the windshield pillar.
  23. Attach the lower rosebud (2) retaining the headliner harness to the cowl.

  24. Object Number: 734416  Size: SH
  25. Connect the coax cable (2) and headliner harness connector (1).
  26. Close the IP compartment door.
  27. Install the IP trim pad. Refer to Instrument Panel Upper Trim Pad Replacement in Instrument Panel, Gages, and Console.
  28. Install the windshield garnish moldings. Refer to Windshield Pillar Garnish Molding Replacement .
  29. Install the center pillar trim panels. Refer to Center Pillar Garnish Molding Replacement .
  30. Install the front side door sill plates. Refer to Front Side Door Sill Plate Replacement .
  31. Install the right sound insulator. Refer to Instrument Panel Insulator Panel Replacement in Instrument Panel, Gages, and Console.
  32. Install the coat hooks to the roof panel. Refer to Coat Hook Replacement .
  33. Connect the cellular antenna coax cable to the inner coupling on the left body side window. Refer to Mobile Telephone Antenna Inner Coupling Replacement in Cellular Communication.
  34. Connect the antenna module electrical connector to the right and left body side window. Refer to Radio Control Module Replacement in Entertainment.

  35. Object Number: 798356  Size: SH
  36. Install the headliner harness to the left third pillar.
  37. Install the headliner harness to the floor studs.
  38. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  39. Install the ground terminals and the ground bolt to the left center pillar.
  40. Tighten
    Tighten the ground bolt to 10 N·m (88 lb in).


    Object Number: 828099  Size: SH
  41. Reach underneath the carpet and install the 6 - way headliner harness electrical connector (1) to the cross-body wire harness.
  42. Pass the communication interface module electrical connectors through the small hole in the carpet.
  43. Install the headliner harness retaining clips to the rocker panel and the floor panel.

  44. Object Number: 798355  Size: SH
  45. If equipped with OnStar® perform the following procedure:
  46. 35.1. Install the navigation antenna cable to the right 'C' pillar.
    35.2. Install the navigation antenna cable to the floor studs.
  47. Install the body electrical block. Refer to Rear Electrical Center or Junction Block Replacement in Wiring Systems.

  48. Object Number: 798360  Size: SH
  49. Install the rear carpet. Ensure that the carpet hooks over the left wheelhouse panel stud.

  50. Object Number: 798357  Size: SH
  51. Connect the electrical connector to the left-hand body side window actuator.
  52. Connect the electrical connector to the right-hand body side window actuator.

  53. Object Number: 798354  Size: SH
  54. Install the nut (1) securing the stowage jack carrier to the wheelhouse panel.
  55. Install the right rear quarter lower trim panel. Refer to Rear Quarter Trim Panel Replacement - Right Side .
  56. Install the left rear quarter lower trim panel. Refer to Rear Quarter Trim Panel Replacement - Left Side .
  57. Install the left/right rear body side trim rear window garnish molding. Refer to Body Side Window Rear Garnish Molding Replacement .
  58. Install the left/right front body side window garnish molding. Refer to Body Side Rear Window Garnish Molding Replacement .
  59. Install the lift gate door sill plate. Refer to Liftgate Door Sill Plate Replacement .
  60. Install the cargo tie-down loops.
  61. Tighten
    Tighten the cargo tie-down loop bolts to 35 N·m (26 lb ft).

  62. Install the rear side door sill plates. Refer to Rear Side Door Sill Plate Replacement .
  63. Install the second row seats. Refer to Rear Seat Replacement in Seats.
  64. Install the third row seats.
  65. Install the luggage/cargo shade assembly, if equipped.
  66. Install the cargo net, if equipped.