Kia Optima

Kia Optima

Kia Optima

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Battery
For best battery service • Keep the battery securely mounted. • Keep the battery top clean and dry. • Keep the terminals and connections clean, tight, and coated with petroleum jelly or t ...

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 ...

Door locks
Operating door locks from outside the vehicle • Turn the key clockwise to unlock and counterclockwise to lock. • If you lock the driver’s door with a key, all vehicle doors will lock auto ...