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:
Instrument panel vents
The outlet vents can be opened or closed separately using the thumbwheel.
Also, you can adjust the direction of air delivered from these vents using the
vent control lever as shown. ...
ADJUSTABLE SEATS
WARNING:
o Never adjust the driver’s seat while the vehicle is moving. Any sudden or
unexpected movement of the seat could cause you to lose control of the vehicle resulting
in an accident. Only ...
Checking the engine oil
Engine oil is essential to the performance and
service of the engine. It is suggested that you
check the oil level at least once a week in normal
use and more often if you are on a trip or driving
...


