Toyota 2015 Corolla Owner's Manual page 80

Rear door child-protector lock
The door cannot be opened from
inside the vehicle when the lock is
set.
Unlock
1
Lock
2
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.
COROLLA_TMMMS_TMMC_U (OM12F00U)
3-2. Opening, closing and locking the doors
101
3