See also:

HEATING CONTROLS
For normal heating operation, set the air intake control to the fresh air () position and the air flow control to the floor () position. For faster heating, the air intake control should be set ...

Spark Plugs
Make sure to install new spark plugs of the correct heat range. ...

General Checks
These are the regular checks you should perform when you drive your Hyundai or you fill the fuel tank. A list of these items will be found on page 6-4. ...