GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 Body and Accessories 🢒 Seats 🢒 Front Seat Lumbar Support Replacement

Removal Procedure
  1. Remove the seat assembly. Refer to Seat Replacement .
  2. Remove the head restraint. Refer to Front Seat Head Restraint Replacement .
  3. Remove the seatback trim cover. Refer to Front Seat Back Trim Replacement .
  4. Remove the seatback cover. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  5. Disconnect the electrical connector.

    6. Object Number: 258226 Size: SH
  6. Drill out the 3 rivets (3).
  7. Remove the lumbar assembly (1).

Installation Procedure

    Object Number: 258226 Size: SH
  1. Install the lumbar assembly (1).
  2. Align and install the 3 rivets (3).
  3. Connect the electrical connector.
  4. Install the seatback cover to the seatback cushion. Refer to Front Seat Back Cushion Cover and Cushion Pad Replacement .
  5. Install the seatback trim cover to the seatback frame. Refer to Front Seat Back Trim Replacement .
  6. Install the head restraint. Refer to Front Seat Head Restraint Replacement .
  7. Install the seat assembly. Refer to Seat Replacement .