GM Service Manual Online
For 1990-2009 cars only

Door Lock Actuator Replacement Cargo Door

Removal Procedure

  1. Remove the cargo door trim panel, as necessary. Refer to Rear Door Trim Panel Replacement .
  2. Pull back the water deflector, as necessary. Refer to Water Deflector Replacement .

  3. Object Number: 570302  Size: SH
  4. Remove the actuator lock control rod.
  5. Disconnect the actuator wiring connector.
  6. Remove the handle actuating cable.
  7. Remove latch actuator cable.
  8. Remove the bolts that retain the actuator assembly to the door.
  9. Remove the actuator from the cargo door.

Installation Procedure


    Object Number: 570302  Size: SH
  1. Install the actuator to the door.
  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 bolts that retain the actuator assembly to the door.
  4. Tighten
    Tighten the bolts to 9 N·m (80 lb in).

  5. Install the latch actuator cable.
  6. Install the handle actuating cable.
  7. Connect the actuator wiring connector.
  8. Install the actuator lock control rod.
  9. Pull back the water deflector, as necessary. Refer to Water Deflector Replacement .
  10. Install the trim panel, as necessary. Refer to Rear Door Trim Panel Replacement .

Door Lock Actuator Replacement Liftgate

Removal Procedure

  1. Remove the upper and lower trim panels. Refer to Liftgate Trim Panel Replacement .
  2. Disconnect the electrical connectors.
  3. Remove the cables attached to actuator assembly.

  4. Object Number: 570312  Size: SH
  5. Remove the bolts from the latch actuator.
  6. Remove the actuator from the liftgate.
  7. Remove the liftgate lock cylinder. Refer to Liftgate Lock Cylinder Replacement .

Installation Procedure

  1. Install the liftgate lock cylinder. Refer to Liftgate Lock Cylinder Replacement .
  2. Install the actuator to the liftgate.
  3. Loose assemble the bolts to the latch actuator.
  4. Close the liftgate glass in order to adjust the actuator.

  5. Object Number: 570312  Size: SH

    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.

  6. Install the cables to actuator assembly.
  7. Tighten
    Tighten the bolts to 9 N·m (80 lb in).

  8. Connect the electrical connectors.
  9. Install the upper and lower trim panels. Refer to Liftgate Trim Panel Replacement .