Maintenance
Hyundai Sonata / Sonata 2011 Owners Manual / Maintenance
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Recommended Engine Coolant
When adding coolant, use only deionized water or soft water for your vehicle
and never mix hard water in the coolant filled at the factory. An improper coolant
mixture can result in serious malfun ...
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. ...
To keep locks from freezing
To keep the locks from freezing, squirt an approved de-icer fluid or glycerine
into the key opening. If a lock is covered with ice, squirt it with an approved
de-icing fluid to remove the ice. If ...


