GM Service Manual Online
For 1990-2009 cars only

Tail/Turn Signal Lamp Replacement Cab/Chassis

Removal Procedure


    Object Number: 277239  Size: SH
  1. Disconnect the lamp electrical connector from the lamp assembly.
  2. Remove the nuts from the back of the bracket.
  3. Remove the lamp assembly from the bracket.
  4. Remove the 4 lens screws.
  5. Remove the lens.
  6. Remove the gasket.
  7. Remove the bulb.

Installation Procedure


    Object Number: 277239  Size: SH
  1. Install the lamp assembly to the bracket.
  2. 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 nuts to the back of the bracket.
  4. Tighten
    Tighten the nuts to 35 N·m (26 lb ft).

  5. Connect the electrical connector to the lamp assembly.
  6. Install the bulb.
  7. Install the gasket.
  8. Install the lens.
  9. Install the 4 screws.
  10. Tighten
    Tighten the 4 screws to 2 N·m (18 lb in).