GM Service Manual Online
For 1990-2009 cars only

Seat Back Hinge Replacement YC5 and YC6

Removal Procedure

  1. Remove the bucket seat from the seat riser. Refer to Bucket Seat Replacement .
  2. Remove the seat cover J-hook from the seat cushion frame:
  3. 2.1. Remove the J-hook at the rear of the seat.
    2.2. Remove the J-hook on the side of the seat containing the seat back hinge.
    2.3. Remove the J-hook that retains the cover to the carpet on the back of the seat on the side of the seat containing the seat back hinge.

    Object Number: 300213  Size: SH

    Important: Note the position and length of all the bolts removed. This will assist with reassembly.

  4. Remove the bolts that retain the seat back hinge to the seat cushion frame.
  5. Remove the armrests, if equipped. Refer to Armrest Replacement .
  6. Lift the seat back cover and pad above the bolts that retain the seat back hinge to the seat back frame.
  7. Important: Note the position and length of all the bolts removed. This will assist with reassembly.

  8. Remove the bolts that retain the seat back hinge to the seat back frame.
  9. Important: Handle the seat carefully when just one side of the seat back is attached to the seat cushion. Improper handling may damage the seat back hinge or the lumbar support cable.

  10. Remove the seat back hinge from the seat back frame.

Installation Procedure

  1. Install the seat back hinge to the seat back frame.

  2. Object Number: 300213  Size: SH

    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.

  3. Install the bolts retaining the seat back hinge to the seat back frame.
  4. Install the bolts in the locations noted during disassembly.

    Tighten
    Tighten the bolts retaining the seat back hinge to the seat back frame to 30 N·m (22 lb ft).

  5. Install the armrests, if equipped. Refer to Armrest Replacement
  6. Install the bolts that retain the seat back hinge to the seat cushion frame.
  7. Install the bolts in the locations from which they were removed, as noted during disassembly.

    Tighten
    Tighten the bolts that retain the seat back hinge to the seat cushion frame to 30 N·m (22 lb ft).

  8. Install the seat cushion J-hook to the seat cushion frame as follows:
  9. 5.1. Install the J-hook that retains the seat cover to the carpet on the back of the seat on the side of the seat containing the recliner.
    5.2. Install the J-hook to the seat frame on the side of the seat containing the seat back hinge.
    5.3. Install the J-hook to the rear of the seat back.
  10. Install the bucket seat to the riser. Refer to Bucket Seat Replacement .

Seat Back Hinge Replacement YC7

Removal Procedure

  1. Remove the bucket seat from the seat riser. Refer to Bucket Seat Replacement .
  2. Remove the armrest from the same side of the seat as the hinge. Refer to Armrest Replacement .
  3. Remove the J-hooks that retains the carpet on the seat back cushion and to the corners of the seat cushion cover.
  4. Remove the seat cover and pad. Refer to Seat Back Cover and Pad Replacement .

  5. Object Number: 300209  Size: SH

    Important: Note the position and length of all the bolts removed. This will assist with reassembly.

  6. Remove the bolts that retain the seat back hinges to the seat cushion and the seat back frame.
  7. Important: Handle the seat carefully when just one side of the seat back is attached to the seat cushion. Improper handling may damage the seat back hinge or the lumbar support cable.

  8. Remove the seat back hinges from the seat frame.

Installation Procedure

  1. Install the seat back hinges to the seat frame.

  2. Object Number: 300209  Size: SH

    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.

  3. Install the bolts that retain the seat back hinges to the seat back frame and to the seat cushion frame.
  4. Tighten
    Tighten the bolts that retain the seat back hinges to the seat back frame and the seat cushion frame to 30 N·m (22 lb ft).

  5. Install the bolts in the locations noted during disassembly.
  6. Install seat cover and pad. Refer to Seat Back Cover and Pad Replacement .
  7. Install the J-hooks that retain the carpet to the seat back and to seat cushion frame and to the corners of the seat cushion cover.
  8. Install the armrest. Refer to Armrest Replacement .
  9. Install the bucket seat to the riser. Refer to Bucket Seat Replacement .