Spark plugs

Make sure to install new spark plugs of the correct heat range.

    See also:

    SIX-SPEED AUTOMATIC AND MANUAL TRANSMISSIONS
    Hyundai's commitment to making the Hyundai Sonata extremely fuel efficient continues with a six-speed automatic transmission with SHIFTRONIC manual control or a standard six-speed manual transaxle ...

    Instrument panel light control (rheostat)
    The instrument panel lights can be made brighter or dimmer by turning the instrument panel light control knob. ...

    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 ...