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)
See also:
CARE OF SEAT BELTS
Seat belt systems should never be disassembled or modified. In addition, care
should be taken to assure that seat belts and belt hardware are not damaged by seat
hinges, doors or other abuse.
WAR ...
Vehicle certification label
The vehicle certification label attached on the driver’s side center pillar contains
the vehicle identification number (VIN). ...
Cooling system
Check cooling system components, such as radiator, coolant reservoir, hoses and
connections for leakage and damage. Replace any damaged parts. ...


