Troubleshooting
Repair proceduresHyundai Elantra AD (2016-2020) Owners Manual: Limitations of the System
The driver must be cautious in the below situations because the system may not
detect other vehicles or objects in certain circumstances:
The vehicle is driven in inclement weather such as heavy rain or snow.
The sensor is polluted with rain, snow, mud, etc.
The rear bumper where the senso ...
Hyundai Elantra AD (2016-2020) Service Manual: Variable Intake Solenoid (VIS) Valve Description and Operation
Description
Variable Intake manifold Solenoid (VIS) valve is installed on
the intake manifold. The VIS valve controls the vacuum modulator which
activates a valve in the intake manifold. The ECM opens or closes this
valve according to engine condition (Refer to below table).
Engine cond ...