Removal steps
1. Park on level ground, set parking brake, wear eye protection and gloves.
2. Disconnect the negative battery cable to prevent accidental power operation of locks or windows.
3. Lower the window or support it in a safe position if required; secure the glass before removing the door panel.
4. Remove the interior door trim and any vapor/water barrier as needed to access the latch area - fastening methods vary by design.
5. Disconnect electrical connectors for power locks, door ajar sensors, and any courtesy lamps; label connectors if helpful.
6. Detach interior lock/handle rods or cables from the latch; note or mark their orientation because connections vary by design.
7. Support the latch assembly from inside the door and remove the fasteners holding the latch to the door shell - fastener type and access vary by vehicle.
8. Carefully withdraw the latch assembly from the door, taking care not to snag wiring or damage the door skin; set the old latch aside.
Installation steps
1. Confirm replacement latch matches the removed unit and that actuators/sensors are compatible.
2. Position the new latch into the door and support it while aligning it to the mounting area; fastener locations and sizes vary by design.
3. Install and snug the latch fasteners by hand; tighten securely using appropriate tools (do not guess torque values).
4. Reconnect lock/handle rods or cables in their original orientation and verify smooth movement.
5. Reconnect electrical connectors to the latch and any sensors; ensure connectors click or seat fully.
6. Reinstall the vapor/water barrier and interior door trim, ensuring clips and fasteners are properly engaged and the window is properly seated.
7. Reconnect the negative battery cable.
8. Test all latch functions: manual and power locking/unlocking, interior and exterior handles, key/remote operation, door ajar indication, and child lock if equipped; cycle several times and listen for binding or unusual noises.
9. If alignment or engagement is poor, adjust striker position or latch orientation as required (adjustment methods vary); retest after each change.
10. Repair tip: photograph linkages and connector positions before disassembly and replace any damaged clips or gaskets to maintain water sealing.