Convenient Features of Your Vehicle
KEY OUT Indicator (if equipped)
In this manual: Convenient Features of Your Vehicle
~1min read

When the engine start/stop button is in the ACC or ON position and any door is opened, the system checks for the smart key. If the smart key is not in the vehicle, the indicator will flash, and if all doors are closed, a chime will sound for about 5 seconds. The indicator goes off while the vehicle is moving. Keep the smart key in the vehicle.
Test yourself
A quick Hyundai Tucson LM quiz: every answer comes with an explanation and a link to the manual page.
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