If the light bulb does not operate, have the vehicle checked by an authorized HYUNDAI dealer.
Hyundai Elantra AD (2016-2020) Owners Manual: Notes on the safe use of the Tire Mobility Kit
Park your car at the side of the road so that you can work with the Tire
Mobility Kit away from moving traffic.
To be sure your vehicle will not move, even when you’re on fairly level
ground, always set your parking brake.
Only use the Tire Mobility Kit for sealing/inflation passenger ...
Hyundai Elantra AD (2016-2020) Service Manual: Intake Actuator Specifications
Specifications
Door positionVoltage (V)Error detectingMax. cooling0.3 ± 0.15 Low voltage : 0.1V or lessMax. heating4.7 ± 0.15 High voltage : 4.9V or more
...