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:
To Help Prevent Corrosion
   You can help prevent corrosion from getting started by observing the following: ...
   
7,500 miles (12,000 km) or 6 months
   Inspect air cleaner filter
Inspect vacuum hose
Replace engine oil and filter (7,500 miles (12,000 km) or 12 months) ...
   
Headlight aiming adjustment
   Before performing aiming adjustment, make
sure of the following.
1. Keep all tires inflated to the correct pressure.
2. Place the vehicle on level ground and press
the front bumper & rear bump ...
   


