With rear seat belt switch: Make sure the seat belt switch connectors are plugged in properly.

Apply medium strength liquid thread lock to the center anchor bolts before reinstallation.

Tighten the bolts by hand first, then tighten to the specified torque.

Check that the retractor locking mechanism functions.

Assemble the washer on the center anchor bolt as shown.

Before installing the center anchor bolt, make sure there are no twists or kinks in the center seat belt.

Make sure the rear center ELR (emergency locking retractor) is pointing straight forward.