Blind-Spot Collision Warning (BCW) system

First stage alert
If a vehicle is detected within the boundary of the system, a yellow warning light will illuminate on the outer side view mirror.
If the detected vehicle is no longer within the blind spot area, the warning will turn off according to the driving conditions of the vehicle.

■ Left side

■ Right side
Second stage alert
A warning chime to alert the driver will activate when:
1. A vehicle has been detected in the blind spot area by the radar system AND.
2. The turn signal is applied (same side as where the vehicle is being detected). When this alert is activated, the warning light on the outer side view mirror. Will also blink. And a warning chime will sound.
If you turn off the turn signal indicator, the second stage alert will be deactivated. If the detected vehicle is no longer within the blind spot area, the warning will turn off according to the driving conditions of the vehicle.
WARNING
CAUTION
System Setting and Operation
Detecting SensorHyundai Elantra AD (2016-2020) Service Manual: Starter Relay Repair procedures
Inspection
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the fuse box cover.
3.
Remove the starter relay (A).
4.
Using an ohmmeter, check that there is continuity between each terminal.
TerminalContinuity30 - 87NO85 - 86YES
5.
Apply 12V ...
Hyundai Elantra AD (2016-2020) Service Manual: Repair procedures
Diagnosis with GDS
1.
BSD system defects can be quickly diagnosed with the GDS. GDS
operates actuator quickly to monitor, input/output value and self
diagnosis.
2.
Connect the cable of GDS to the data link connector in driver side crash pad lower panel, turn the power on GDS.
3.
Sele ...