Assemble the washers and the collar on the center anchor bolt as shown.

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

Tighten the bolts by hand first, then tighten to specification with a torque wrench.

Make sure the seat belt switch connector is plugged in properly.

Do the battery terminal reconnection procedure.

Check for any DTCs that may have been set during repairs, and clear them.