GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 LSS 🢒 Body and Accessories 🢒 Lighting Systems 🢒 High Mount Stop Lamp Replacement

Removal Procedure
  1. Remove the rear seat. Refer to Rear Seat Back Replacement in Seats.

    2. Object Number: 299817 Size: SH
  2. Remove the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement in Interior Trim.
  3. Remove the bolts (2) that retain the stoplamp to the trim panel.
  4. Remove the electrical connector (3).
  5. Remove the center high mounted stoplamp (1).

Installation Procedure

    Object Number: 299817 Size: SH
  1. Install the electrical connector (3) to the center high mounted stoplamp (1).
  2. Install the stoplamp to the trim panel by sliding the lamp assembly rearward against the rear window.

    3. 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 (2) in order to retain the stoplamp to the trim panel.

    4. Tighten
    Tighten the bolts (2) to 5 N·m (44 lb in). Tighten the bolts in the sequence shown in the illustration.

  4. Install the rear shelf trim panel. Refer to Rear Window Shelf Trim Panel Replacement in Interior Trim.
  5. Install the rear seat. Refer to Rear Seat Back Replacement in Seats.