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 ...

First impressions mean a lot
At first glance, the Optima gives off more than a hint of a European vibe. A vast stylistic improvement over the namesake that it replaces, it sports larger dimensions than the outgoing model. Sur ...

Keys
Record your key number The key code number is stamped on the bar code tag attached to the key set. Should you lose your keys, this number will enable an authorized KIA dealer to duplicate the k ...