GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

The high mount stop lamp is illuminated by a Light Emitting Diode (LED). The lamp and diode are serviced as an assembly.


    Object Number: 64626  Size: SH
  1. Remove one of the inner tail lamps. Refer to Tail Lamp Replacement .
  2. Access the high-mounted stop lamp through the tail lamp opening.

  3. Disconnect the electrical connector from the stop lamp.

  4. Object Number: 64627  Size: SH
  5. Remove the screws retaining the stop lamp to the rear fascia.
  6. Remove the stop lamp from the vehicle through the tail lamp opening.

Installation Procedure


    Object Number: 64627  Size: SH
  1. Install the high-mounted stop lamp into position inside the rear fascia.
  2. Loosely install the stop lamp mounting screws.
  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.

  4. Align the stop lamp to the rear fascia, then press and hold the lamp to the fascia for flushness.
  5. Tighten
    Tighten the high-mounted stop lamp retaining screws to 4 N·m (35 lb in).


    Object Number: 64626  Size: SH
  6. Connect the electrical connector to the stop lamp.
  7. Install the inner tail lamp. Refer to Tail Lamp Replacement .