If the light bulb does not operate, have the vehicle checked by an authorized HYUNDAI dealer.
Hyundai Elantra AD (2016-2020) Service Manual: Variable Intake Solenoid(VIS) Actuator Repair procedures
Removal and Installation
1.
Disconnect the vacuum hose (A).
2.
Remove the variable Intake solenoid (VIS) actuator connector (B) and actuator (C).
Tightening torque :
9.8 ~ 11.8N.m (1.0 ~ 1.2kgf.m, 7.2 ~ 8.7lb-ft)
3.
Install in the reverse order of removal. ...
Hyundai Elantra AD (2016-2020) Owners Manual: Trip computer, Turn By Turn (TBT) modes
Trip computer mode
The trip computer mode displays information related to vehicle driving parameters
including range, fuel economy, trip meter information and vehicle speed.
For more details, refer to "Trip Computer" in this chapter.
Turn By Turn (TBT) mode
This mode displays the ...