
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.
Seat Warmers
Seat BeltsHyundai Elantra AD (2016-2020) Service Manual: Troubleshooting
Standard Flow of Diagnostic Troubleshooting
Notes With Regard To Diagnosis
The phenomena listed in the following table are not abnormal.
ConditionExplanationSystem check soundWhen starting the engine, a thudding sound can sometimes be heard coming from inside the engine compartment. This is bec ...
Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description
The starting system includes the battery, starter, solenoid
switch, ignition switch, inhibitor switch (A/T), clutch pedal switch
(M/T), ignition lock switch, connection wires and the battery cable.
When the ignition key is turned to the start position, current flows and energizes ...