Hyundai Sonata (2009)

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    When to Replace Tires
    The original tires on your car have tread wear indicators. The location of tread wear indicators is shown by the "TWI" or "" marks, etc., The tread wear indicators appear whe ...

    Ventilation
    To operate the ventilation system: o Set the air intake control to "Fresh" mode (). o To direct all intake air to the dashboard vents, set the airflow control to "Face" (). ...

    Owner maintenance precautions
    Improper or incomplete service may result in problems. This section gives instructions only for the maintenance items that are easy to perform. As explained earlier in this section, several proced ...