Spark plugs
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance / Explanation of scheduled maintenance items / Spark plugs
Make sure to install new spark plugs of the correct heat range.
See also:
Ventilation
To operate the ventilation system:
o Set the air intake control to "Fresh" mode
().
o To direct all intake air to the dashboard
vents, set the airflow control to "Face" ().
...
Illuminated engine start/stop button
Whenever the front door is opened, the engine start/stop button will illuminate
for your convenience. The light will go off after about 30 seconds when the door
is closed. ...
Drive belts
Inspect all drive belts for evidence of cuts, cracks, excessive wear or oil saturation
and replace if necessary. Drive belts should be checked periodically for proper
tension and adjusted as neces ...


