Location and directions of pressing the cigarette lighter to turn it on
The cigarette lighter can be used when the ignition key is in the "ON" or "ACC" position. To use the cigarette lighter, press the cigarette lighter knob all the way down. When the cigarette lighter heats up, it will automatically return to its original position with a click. Do not hold the cigarette lighter in the fully pressed position, as this may damage the heating element and cause a fire. If the cigarette lighter needs to be replaced, use only a genuine Hyundai cigarette lighter or equivalent.
[The article is borrowed from an online resource hyundaibook.ru]