The door cannot be opened from inside the vehicle when the lock is set.
These locks can be set to prevent children from opening the rear doors. Push down on each rear door switch to lock both rear doors.

Locking the front doors from the outside without a key
Automatic door locking and unlocking systemsOverhaul
1. DRAIN ENGINE OIL
2. REMOVE SPARK PLUG
3. REMOVE VENTILATION VALVE SUB-ASSY
4. REMOVE OIL FILLER CAP SUB-ASSY
5. REMOVE OIL FILLER CAP GASKET
6. REMOVE CYLINDER HEAD COVER SUB-ASSY
(a) Remove the 2 engine wire harness clamps.
(b) Remove the 3 nuts and disconnect the engine wire harness. ...