Toyota 2015 Corolla Owner's Manual page 551

The rear door cannot be opened
● Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. ( P. 101)
The trunk lid is closed with the electronic key left inside
(vehicles with a smart key system)
● The function to prevent the electronic key from being left inside the trunk
will operate and you can open the trunk as usual. Take the key out from the
trunk. ( P. 108)
COROLLA_TMMMS_TMMC_U (OM12F00U)
What to do if... (Troubleshooting)
595