System Description
Blind-Spot Collision Warning (BCW)
The Blind-Spot Collision Warning (BCW) system uses radar sensors in the rear bumper to monitor and warn the driver of an approaching vehicle in the driver's blind spot area.
1) Blind-Spot Area

The blind spot detection range varies relative to vehicle speed.
Note that if your vehicle is traveling much faster than the vehicles around you, the warning will not occur.
2) Closing at high speed

The Lane Change Assist feature will alert you when it detects a vehicle is approaching in an adjacent lane at a high rate of speed. If the driver activates the turn signal when the system detects an oncoming vehicle, the system sounds an audible alert.
WARNING
Drive Mode Integrated Control System
System Setting and OperationHyundai Elantra AD (2016-2020) Service Manual: Vacuum Pump Components and Components Location
Components
[UII 1.6]
1. Camshaft bearing cap2. Camshaft3. Camshaft sprocket4. Vacuum pump5. Vacuum pump gasket
...
Hyundai Elantra AD (2016-2020) Service Manual: Multimedia Jack Description and Operation
Description
The multimedia jack on the console upper cover is for
customers who like to listen to external portable music players like the
MP3 etc., through the vehicle's sound system when it is linked to this
jack. The customer has this added option.
In case of distortions from media conn ...