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:
Bulb wattage
...
Automatic transaxle fluid (if equipped)
Automatic transaxle fluid should not be checked under normal usage conditions.
But in severe conditions, the fluid should be changed at an authorized HYUNDAI dealer
in accordance to the scheduled ...
SRS Care
The SRS is virtually maintenance-free and there are no parts you can safely service
by yourself. If the SRS "AIR BAG" warning light does not illuminate, or continuously
remains on, have ...


