GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 Park Avenue 🢒 Body and Accessories 🢒 Horns 🢒 Horn Replacement

Removal Procedure
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the lower air deflector. Refer to Front Air Deflector Replacement in Body Front End.

    3. Object Number: 556033 Size: SH
  3. Disconnect the electrical connectors from the horns.
  4. Remove the bolt retaining the horns to the left front frame rail.
  5. Remove the horns.

Installation Procedure

    Object Number: 556033 Size: SH
  1. Install the horns to the left front frame 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.

  2. Install the horn retaining bolts.

    3. Tighten
    Tighten the bolts to 15 N·m (11 lb ft).

  3. Connect the electrical connectors to the horns.
  4. Install the front air deflector. Refer to Front Air Deflector Replacement in Body Front End.
  5. Lower the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.