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

Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the rear bumper.
(Refer to Body - "Rear Bumper")
3.
Remove the BSD unit (A) after loosening the mounting nuts.

   
•
Take care not to separate the bracket from rear bumper when removing the BSD sensor.

Installation
1.
Install the BSD units to the rear bumper.
2.
Install the rear bumper.
3.
Connect the negative (-) battery terminal.
   
•
Take care not to confuse left side (master) and right side (slave) unit when installing.
•
BSD units connector connect to the wiring connector.
Blind Spot Detection Unit Schematic Diagrams
Circuit Diagram ...

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

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Fuses
A vehicle’s electrical system is protected from electrical overload damage by fuses. This vehicle has 2 (or 3) fuse panels, one located in the driver's side panel bolster, the other in the engine compartment near the battery. If any of your vehicle’s lights, accessories, or controls ...

Hyundai Elantra AD (2016-2020) Service Manual: Idler Repair procedures
Removal and Installation 1. Remove the drive belt. (Refer to Timing System - "Drive Belt") 2. Remove the idler (A). Tightening torque : 39.2 ~ 49.0N.m (4.0 ~ 5.0kgf.m, 28.9 ~ 36.2lb-ft) 3. Install in the reverse order of removal. Inspection Check the idler for excessive oil le ...

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