Toyota Yaris Owner's Manual page 119

Locking the front doors from the outside without a key
1
Move the inside door lock button to the lock position.
2
Close the door while pulling the door handle.
 Vehicles without a smart entry & start system
The door cannot be locked if the key is in the engine switch.
Vehicles with a smart entry & start system

The door cannot be locked if the engine switch is in ACCESSORY or
IGNITION ON mode, or the electronic key is left inside the vehicle.
However, the key may not be detected correctly and the door may be
locked.
Rear door child-protector lock (5-door models only)
The door cannot be opened from
inside the vehicle when the lock is
set.
1
Unlock
2
Lock
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.
3-2. Opening, closing and locking the doors
119
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