Hyundai Elantra: Blind Spot Detection System / Blind Spot Detection Switch Repair procedures

Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")

3.
Remove the lower crash pad switch assembly (A) after disengaging the mounting clip.

4.
Remove the rheostat switch connector (A).

5.
Check for intensity of new rheostat switch. If the light intensity of the lamps changes smoothly without any flickering when the rheostat is turned, it can be assumed that the rheostat is normal.

Blind Spot Detection Switch Components and Components Location
Circuit Diagram ...

Blind Spot Detection Indicator Components and Components Location
Components 1. BSD Indicator2. Side repeater lamp ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Special Service Tools
Special Service Tools Tool(Number and Name)IllustrationUse09581-2T100Piston expanderSpreading the front disc brake piston.09580-0U000Brake piston adjusterRemoval and installtion of the rear disc brake piston. ...

Hyundai Elantra AD (2016-2020) Owners Manual: Turn Signal, High Beam, Light ON Indicator Lights
Turn Signal Indicator Light This indicator light blinks: When you operate the turn signal indicator. If any of the following occurs, there may be a malfunction with the turn signal system. - The turn signal indicator light illuminates but does not blink - The turn signal indicator light bli ...

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