Hyundai Ioniq Hybrid 2020 Owner's Manual page 323

Key ignition switch positions
Switch
Position
To turn the ignition switch to the LOCK position, push the
key in at the ACC position and turn the key towards the
LOCK position.
LOCK
The ignition key can be removed in the LOCK position.
(The shift lever must be in the P (Park) position)
Some of the electrical accessories are usable.
ACC
The steering wheel unlocks.
This is the normal key position when the vehicle has
started.
ON All features and accessories are usable.
The warning lights can be checked when you turn the
ignition switch from ACC to ON.
To start the vehicle, turn the ignition switch to the START
START position. The switch returns to the ON position when you
let go of the key.
Action Notice
Do not leave the ignition switch in the ON position when
the vehicle is not in the ready (
battery from discharging.
The engine will crank until you release the key.
5
) mode to prevent the
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