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: General Safety Information and Caution
Precautions
General Precautions
Please read the following precautions carefully before performing the airbag system service.
Observe the instructions described in this manual, or the airbags could accidentally deploy and cause damage or injuries.
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Except when performing electrical inspe ...
Hyundai Elantra AD (2016-2020) Owners Manual: Seat Belt Warning Light
Seat belt warning light (for driver's seat)
As a reminder to the driver, the seat belt warning light will illuminate and
warning chime will sound for approximately 6 seconds each time you turn the ignition
switch ON if the seat belt is unfastened.
If you continue not to fasten the seat b ...