See also:

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. ...

Winter driving
More severe weather conditions of winter result in greater wear and other problems. To minimize winter driving problem, you should follow these suggestions: ...

Bi-level heating
Your Hyundai is equipped with bi-level heating controls. To use this feature: o Set the air intake control to the fresh air () position. o Set the air flow control at the bi-level () position. ...