2008 Toyota Highlander Owners Manual - Page 633

1-2. Opening, closing and locking the doors Grip the handle to unlock the doors. Make sure to touch the sensor on the back of the handle. The door cannot be unlocked for 3 seconds after the door is locked. Back door handle Press the button to lock the door. Press the button to unlock the door. The door cannot be unlocked for 3 seconds after the door is locked. Lock the back door again when you leave the vehicle. The back door will not lock automatically after it has been opened and then closed. 34