GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 Park Avenue 🢒 Engine 🢒 Engine Electrical 🢒 Battery Replacement

Removal Procedure

    Object Number: 166679 Size: SH

    Notice: Turn OFF the ignition when connecting or disconnecting the battery cables, the battery charger or the jumper cables. Failure to do so may damage the PCM or other electronic components.

  1. Open the transition block battery cable protectors.

    2. Object Number: 166621 Size: SH

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  2. Disconnect the negative battery cable from the transition block.
  3. Disconnect the positive battery cable from the transition block.

    4. Object Number: 166683 Size: SH
  4. Remove the battery retainer nut.
  5. Remove the retainer.

    6. Object Number: 166687 Size: SH
  6. Remove the battery.
  7. Remove the negative transition block from the battery.
  8. Remove the positive transition block from the battery.

Installation Procedure

    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.

  1. Install the positive transition block to the positive battery terminal on the side of the battery.

    2. Tighten
    Tighten the positive transition block cable fastener to 14 N·m(11 lb ft).

  2. Install the negative transition block cable to the negative battery terminal on the side of the battery.

    3. Tighten
    Tighten the negative transition block cable fastener to 14 N·m(11 lb ft).


    Object Number: 166687 Size: SH
  3. Install the battery into the vehicle.

    4. Object Number: 166683 Size: SH
  4. Install the battery retainer.
  5. Install the battery retainer nut.

    6. Tighten
    Tighten the nut to 17 N·m 13 lb ft).


    Object Number: 166621 Size: SH
  6. Connect the positive battery cable to the positive battery transition block.

    7. Tighten
    Tighten the cable nut to 14 N·m 11 lb ft).

  7. Connect the negative battery cable to the negative transition block.

    8. Tighten
    Tighten the cable nut to 14 N·m 11 lb ft).