Hyundai Veloster: Illuminated engine start/stop button

Whenever the front door is opened, the engine start/stop button will illuminate for your convenience. The light will go off immediately when the engine start/stop button is turned on or go off after about 30 seconds when the door is closed.
Engine start/stop button positionFront Impact Sensor (FIS). Components and Components Location
Components
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Cruise control system
The cruise control system allows you to program the vehicle to maintain a constant
speed without resting your foot on the accelerator pedal.
This system is designed to function above approximately ...
Owner maintenance
The following lists are vehicle checks and inspections that should be performed
by the owner or an authorized HYUNDAI dealer at the frequencies indicated to help
ensure safe, dependable operation ...