Check Spark Plugs and Ignition System
Inspect your spark plugs 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.
See also:
To resume cruising speed at more than approximately 25 mph (40 km/h)
If any method other than the CRUISE ONOFF switch was used to cancel cruising
speed and the system is still activated, the most recent set speed will automatically
resume when the RES/+ switch is ...
Vapor Hose and Fuel Filler Cap
The vapor hose and fuel filler cap should be inspected at those intervals specified
in the maintenance schedule. Make sure that a new vapor hose or fuel filler cap
is correctly replaced. ...
Front Fog Light (If Installed)
NOTE:
It is recommended that the front fog light bulb be replaced by an authorized
Hyundai dealer. ...