22,500 miles (36,000 km) or 18 months
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Scheduled maintenance service / 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)
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Suspension Mounting Bolts
Check the suspension connections for looseness or damage. Retighten to the specified
torque. ...
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 ...
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 ...


