Kia Optima (2011)

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    Engine oil
    Checking the engine oil level 1. Be sure the vehicle is on level ground. 2. Start the engine and allow it to reach normal operating temperature. 3. Turn the engine off and wait for a few minute ...

    Interior lights
    Map light (if equipped) Type A The lights are turned ON or OFF by pressing the corresponding switch. Type B (1) Map light : The lights are turned ON or OFF by pressing the corresponding swi ...

    Rear differential (4WD)
    Checking or changing rear differential fluid Have rear differential fluid checked or changed by an Authorized Kia Dealer according to the Maintenance Schedule at the beginning of this section. ...