To prevent children from accidentally opening the doors while driving, the rear door locks are equipped with a special locking device. There is a locking lever on the end surface of each rear door. If, with the door open, move the lever to the position "LOCK" (LOCK) and then close the door, it cannot be opened with the inside handle regardless of the position of the release button. In order to open the rear door locked in this way, it is necessary to lift the lock off button and use the outside handle.