Kia Optima: Fuel Filler Cap. Description and OperationDescription
A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gasket on the fuel filler cap and the filler neck flange contact each other, the ratchet produces a loud clicking noise indicating the seal has been set.

InstallationChecking tire inflation pressure
Check your tires once a month or
more.
Also, check the tire pressure of the
spare tire.
How to check
Use a good quality gage to check tire
pressure.You can not tell if your tires
are proper ...
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Remove the head lamp assembly.
(Refer to the head lamp)
3.
Remove the head lamp leveling
ac ...
Description
The immobilizer system will disable the vehicle unless the proper ignition key is
used. In addition to the currently available anti-theft systems such as car alarms,
the immobilizer system aims to ...