GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the right headlamp assembly in order to gain access to the horn. Refer to Headlamp Replacement in Lighting Systems.

  2. Object Number: 329494  Size: SH
  3. Remove the nut (3) from the horn mounting bracket.
  4. Disconnect the electrical connector (2) from the horn.
  5. Remove the horn from the front rail.

Installation Procedure

  1. Install the horn to the front rail.
  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.


    Object Number: 329494  Size: SH
  3. Install the nut (3) to the horn mounting bracket.
  4. Tighten
    Tighten the horn mounting bracket nut to 10 N·m (89 lb in).

  5. Connect the electrical connector (2) to the horn.
  6. Install the right headlamp assembly. Headlamp Replacement in Lighting Systems.