While the engine is running, push either of the switches to warm the rear seat.
During mild weather or under conditions where the operation of the seat warmer is not needed, keep the switches in the OFF position.
Each time you push the switch, the temperature setting of the seat is changed as follows :
The seat warmer defaults to the OFF position whenever the ignition switch is placed in the ON position.
Information
With the seat warmer switch in the ON position, the heating system in the seat turns off or on automatically depending on the seat temperature.
Hyundai Elantra AD (2016-2020) Service Manual: Rear Oil Seal Components and Components Location
Components
1. Rear oil seal
...
Hyundai Elantra AD (2016-2020) Owners Manual: In Case of an Emergency While Driving
If the Engine Stalls While Driving
Reduce your speed gradually, keeping a straight line. Move cautiously off
the road to a safe place.
Turn on your hazard warning flasher.
Try to start the engine again. If your vehicle will not start, contact an
authorized HYUNDAI dealer or seek other ...