See also:

Check spark plugs and ignition system
Inspect your spark plugs as described in section 7 and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

POWER WINDOWS (If Installed)
The power windows operate when the ignition key is in the "ON" position. The main switches are located on the driver's armrest and control the front (4/3 Door) and rear windows (4 ...

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 ...