Sonata 2011 Owners Manual

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Adjusting Seatback Angle
To recline the seatback, lean forward to take your weight off it, then pull up on the recliner control lever at the outside edge of the seat. Now lean back until the desired seatback angle is ac ...

Tire rotation
Tires should be rotated every 7,500 miles (12,000 km). If you notice that tires are wearing unevenly between rotations, have the car checked by a Hyundai dealer so the cause may be corrected. ...

Gasolines for Cleaner Air
To help contribute to cleaner air, Hyundai recommends you use gasolines treated with detergent additives, which help prevent deposit formation in the engine. These gasolines will help the engine r ...