Rear Door Lock Assembly for Toyota

This rear back door locking unit is a key safety and convenience part . It is needed to keep the tailgate securely closed while driving, protect cargo from theft, and allow smooth locking/unlocking from the key or central locking system.

How This Part Works

Inside the mechanism, a rotating latch grabs the striker on the body and holds it under spring tension. When you turn the key, press the remote, or pull the handle, the actuator and levers release the latch so the back door can open. Proper alignment and a clean, lubricated latch help it click shut with the correct “double-lock” feel .

Signs of Failure & What Happens If It Breaks

If the lock assembly wears out or jams, the back door may not close fully, may bounce open, or may refuse to unlock. Common symptoms include a weak click, sticking handle, intermittent central locking, or a door-ajar warning. Driving with a faulty latch can lead to an unsafe opening tailgate, water/dust leaks, and damaged striker or trim ⚠️.

Compatible Models

• Land Cruiser 100