GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC C Pickup - 2WD 🢒 Body and Accessories 🢒 Body Rear End 🢒 Rear Door Lock Replacement

Removal Procedure
  1. Remove the door trim panel, as necessary. Refer to Rear Door Trim Panel Replacement .
  2. Remove the access hole cover, as necessary. Refer to Access Cover Replacement - Rear Door .

    3. Object Number: 277855 Size: SH
  3. Remove the lock rod from the lock assembly rod clip.
  4. Remove the lock assembly bolts.
  5. Remove the lock assembly from the door.

Installation Procedure

    Object Number: 277855 Size: SH
  1. Install the lock assembly 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.

  2. Install the lock assembly bolts.

    3. Tighten
    Tighten the lock assembly bolts to 25 N·m (18 lb ft).

  3. Install the lock rod to the lock assembly clip.
  4. Install the access hole cover, as necessary. Refer to Access Cover Replacement - Rear Door .