LCD Display Messages
Shift to P
This message appears if you try to turn off the vehicle with the shift lever not in the N (Neutral) position.
At this time, the Engine Start/Stop button is turned to the ACC position (if you press the Engine Start/Stop button again, it will change to the ON position).
Low Key Battery
This message appears if the smart key battery is discharged when the Engine Start/Stop button is pressed to the OFF position.
Press the START button while turning the steering wheel
This message appears if the steering wheel does not unlock normally when the Engine Start/Stop button is pressed.
Press the Engine Start/Stop button while turning the steering wheel to the right and left.
Check the steering wheel lock system
This message appears if the steering wheel does not lock normally when the Engine Start/Stop button is turned to the OFF position.
Press the brake pedal to start the vehicle
This message appears if the Engine Start/Stop button is pressed repeatedly to change to the ACC position twice without pressing the brake pedal.
You can start the vehicle by pressing the brake pedal.
Key Not in Vehicle
This message appears if the smart key is not in the vehicle when you press the Engine Start/Stop button.
Always keep the Smart Key with you when attempting to start the vehicle.
Key Not Detected
This message appears if the smart key is not detected when the Engine Start/Stop button is pressed.
Press the START button again
This message appears if the vehicle could not be started when the Engine Start/Stop button was pressed.
In this case, try to start the engine by pressing the Engine Start/Stop button again.
If the warning message appears each time you press the Engine Start/Stop button, have your vehicle checked by an authorized HYUNDAI dealer.
Press the START button with the key
This message appears if you press the Engine Start/Stop button when the "Key Not Detected" warning message is displayed. At this time, the immobilizer indicator light flashes.
Check the BRAKE SWITCH fuse.
This message appears if the brake switch fuse is blown.
Replace the fuse with a new one before starting the engine.
If this is not possible, you can start the engine by pressing and holding the Engine Start/Stop button for 10 seconds in the ACC position.
Shift to P to start the vehicle
This message appears if you try to start the engine with the shift lever not in the P (Park) position.
Test yourself
A quick Hyundai Ioniq quiz: every answer comes with an explanation and a link to the manual page.