Kia Optima: Air Bag Warning LightThe purpose of the air bag warning light in your instrument panel is to alert you of a potential problem with your Air Bag - Supplemental Restraint System (SRS).
Have the system checked if:

The Importance of the Passenger Being Properly Seated
Supplemental Restraint System ServiceDescription and Operation
Description
The hydraulic system consists of oil, an oil filter, an oil pump, and a valve body
(valves and solenoid valves). The oil pump is powered by the engine. ATF passes
through the oil filt ...
Battery replacement
Type A
Type B
A battery should last for several years, but if the transmitter or smart key
is not working properly, try replacing the battery with a new one. If you are unsure
how to use or ...
Fuses
A vehicle’s electrical system is protected from electrical overload damage by
fuses.
This vehicle has two fuse panels, one located in the driver’s side kick panel,
the other in the engine c ...