Lumber Support Units Repair procedures
Components and Components LocationHyundai Elantra AD (2016-2020) Service Manual: Knock Sensor (KS) Repair procedures
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2.
Disconnect the knock sensor connector (A).
3.
Remove the intake manifold.
(Refer to Engine Mechanical System - "Intake Manifold")
4.
Remove the installation bolt (A), and then remove the sens ...
Hyundai 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 ...