The following operations can be performed simply by carrying the electronic key on your person, for example in your pocket. (The driver should always carry the electronic key.)

Operation signals
A buzzer sounds and the emergency flashers flash to indicate that the doors have been locked/unlocked. (Locked: once; unlocked: twice)
Security feature
If a door is not opened within approximately 60 seconds after the vehicle is unlocked, the security feature automatically locks the vehicle again.
Smart key system
Unlocking and locking the doorsIf a warning light turns on or
a warning buzzer sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunction
in the system. However, if this continues to occur, have
the vehicle inspected by your Toyota dealer.
Actions to ...
Removal
Hint:
Use the same procedures for the rh side and lh side.
The procedures listed below are for the lh side.
Remove front pillar cover sub-assembly upper lh
Using a moulding remover, detach the 3 clips and
remove the pillar cover.
...
Radiator
Components
On-vehicle inspection
Check radiator reservoir cap subassembly
Measure the valve opening pressure.
If there are water stains or foreign matter on oring
1, clean it with water and finger scouring.
Check that o-ring 1 is not deformed, cracked or
sw ...