See also:

Battery replacement
A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace ...

2011 Hyundai Sonata review by G. Chambers Williams III
Among them is the newest generation of Hyundai's midsize sedan, the Sonata, now available in dealerships as an early 2011 model. The South Korean automaker introduced the new model to automotive j ...

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) ...