GM Service Manual Online
For 1990-2009 cars only

Headlamp Replacement Base

Removal Procedure

  1. Make sure the headlamp switch is in the OFF position.

  2. Object Number: 277182  Size: SH
  3. Remove the retaining ring screws (5) from the retaining ring (4).
  4. Remove the retaining ring from the headlamp (3).
  5. Remove the headlamp from the headlamp mounting bracket (2).
  6. Disconnect the electrical connector (1) from the headlamp.

Installation Procedure


    Object Number: 277182  Size: SH
  1. Connect the electrical connector (1) to the headlamp (3).
  2. Install the headlamp to the headlamp mounting bracket (2).
  3. Install the retaining ring (4) to the headlamp.
  4. 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.

  5. Install the retaining ring screws (5) to the retaining ring.
  6. Tighten
    Tighten the screws to 2 N·m (18 lb in).