Hyundai Sonata: Features of your vehicle - Hyundai Sonata Owners ManualHyundai Sonata: Features of your vehicle

Air bag warning label (if equipped)
Air bag warning labels, some required by the U.S. National Highway Traffic Safety Administration (NHTSA), are attached to alert the driver and passengers of potential risks of the air bag syst ...

Keys
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Impact sensing door unlock system (if equipped)
All doors will be automatically unlocked when the impact is delivered to impact sensors while the ignition switch is ON. However, the doors may not be unlocked if mechanical problems occur with the ...

Switching on/off
The three blue indicator lamps in the buttons indicate the ventilation level you have selected. If the battery voltage is too low, the seat ventilation may switch off. •► Make sure t ...

Fuel requirements
Gasoline engines Use only premium-grade unleaded gasoline. The octane number should be at least 91. Details can be found on the gas pump. The octane number is the average value of the Research ...