After refueling, turn the fuel tank cap until you hear a click. Once the cap is released, it will turn slightly in the opposite direction.

Caution
When replacing the fuel tank cap
Do not use anything but a genuine toyota fuel tank cap designed for your vehicle. Doing so may cause a fire or other incident which may result in death or serious injury.
Opening the fuel tank capInstallation
Hint:
Use the same procedures for the rh side and lh side.
The procedures listed below are for the lh side.
Install rear door belt moulding assembly
lh
Attach the claws to install the moulding.
Hint:
Confirm that the moulding is firmly installed.
Install rear door tr ...
Do-it-yourself service precautions
If you perform maintenance
by yourself, be sure to follow
the correct procedure
as given in these sections.
Maintenance
WARNING
The engine compartment contains
many mechanisms and fluids that
may move suddenly, become hot,
or become electrically energized.
To avoid death or serious injury,
obser ...
Unmatched key code
Description
This dtc is output when a key code that has not been registered in the
transponder key ecu is inserted
into the ignition key cylinder.
Inspection procedure
Reregister key
Clear the dtc (see page ei-18).
Reregister the key code with the transponder key ecu
(see ...