Kia Optima (2009)

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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 ...

    Door locks
    Operating door locks from outside the vehicle • Turn the key toward the front of the vehicle to unlock and toward the rear of the vehicle to lock. • If you lock the driver’s door with a k ...

    Climate control air filter
    Filter inspection If the vehicle is operated in severely airpolluted cities or on dusty rough roads for a long period, it should be inspected more frequently and replaced earlier. When you replac ...