Hyundai Sonata (2009)

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    Coolant
    The coolant should be changed at the intervals specified in the maintenance schedule. ...

    90,000 miles (144,000 km) or 72 months
    ❑ Inspect vacuum hose ❑ Inspect air conditioning refrigerant ❑ Inspect brake hoses and lines ❑ Inspect drive shafts and boots ❑ Inspect electronic throttle contr ...

    System operation
    Ventilation 1. Set the mode to the position. 2. Set the air intake control to the outside (fresh) air position. 3. Set the temperature control to the desired position. 4. Set the fan speed contro ...