See also:

Check battery and cables
Winter puts additional burdens on the battery system. Visually inspect the battery and cables as described in section 7. The level of charge in your battery can be checked by an authorized HYUNDAI ...

If Engine Turns Over Normally but Does Not Start
1. Check fuel level. 2. With the key in the "OFF" position, check all connectors at ignition coil and spark plugs. Reconnect any that may be disconnected or loose. 3. Check the fuel li ...

Safety
The Hyundai Sonata is one of only two cars on the market that have received both a Top Safety Pick designation from the Insurance Institute for Highway Safety and a five-star overall safety rating ...