22,500 miles (36,000 km) or 18 months

❑ Inspect air cleaner filter ❑ Inspect vacuum hose ❑ Replace engine oil and filter (22,500 miles (36,000 km) or 36 months)

    See also:

    Warnings and indicators
    All warning lights are checked by turning the ignition switch ON (do not start the engine). Any light that does not illuminate should be checked by an authorized HYUNDAI dealer. After starting th ...

    Maintenance Precautions
    Improper or incomplete service may result in problems. This section gives instructions only for the maintenance items that are easy to perform. Several procedures should be done by an authorized Hy ...

    ADVANCED STANDARD SAFETY TECHNOLOGIES: PART OF HYUNDAI'S ASSURANCE COMMITMENT
    Hyundai Sonata is built from the ground up with safety in mind, with a hot stamped ultra-high-strength steel body structure, advanced airbag technology and Electronic Stability Control (ESC), deli ...