Hyundai Sonata (2009)

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    Change to "winter weight" oil if necessary
    In some climates it is recommended that a lower viscosity "winter weight" oil be used during cold weather. See section 8 for recommendations. If you aren't sure what weight oil you s ...

    Shop manual
    A Hyundai Shop Manual is available from your authorized Hyundai dealer. It's written for professional technicians, but is simple enough for most mechanically-inclined owners to understand. ...

    Removal and installation (If Installed)
    To remove the headrest, raise it as far as it can go then press the release button (1) while pulling upward (2). To reinstall the headrest, put the headrest poles (3) into the holes while pressin ...