See also:

Engine cooling system
The high-pressure cooling system has a reservoir filled with year-round antifreeze coolant. The reservoir is filled at the factory. Check the antifreeze protection and coolant level at least once ...

By the numbers
The Kia Optima is a five-seat mid-size segment passenger car that has an interior that the EPA will probably consider a full size interior. Longer, lower and wider than the vehicle it replaces, it ...

Air bag - advanced supplemental restraint system
(1) Driver’s front air bag (2) Passenger’s front air bag (3) Side impact air bag (4) Curtain air bag * The actual air bags in the vehicle may differ from the illustration. * 3rd row seat : ...