
The rear radars are located inside the rear bumper for detecting the side and rear areas. Always keep the rear bumper clean for proper operation of the system.
NOTICE

Blind-Spot Collision Warning (BCW) system disabled. Radar blocked
This warning message may appear when :
- One or both of the sensors on the rear bumper is blocked by dirt or snow or
a foreign object.
- Driving in rural areas where the sensor does not detect another vehicle for an
extended period of time.
- When there is inclement weather such as heavy snow or rain.
If any of these conditions occur, the light on the BCW switch and the system will turn off automatically.
When the BCW canceled warning message is displayed in the cluster, check to make sure that the rear bumper is free from any dirt or snow in the areas where the sensor is located. Remove any dirt, snow, or foreign material that could interfere with the radar sensors.
After any dirt or debris is removed, the system should operate normally after about 10 minutes of driving the vehicle.
If the system still does not operate normally have your vehicle inspected by an authorized HYUNDAI dealer.

Check Blind-Spot Collision Warning (BCW) system
If there is a problem with the BCW system, a warning message will appear and the light on the switch will turn off. The system will turn off automatically. Have your vehicle inspected by an authorized HYUNDAI dealer.
Warning and System ControlHyundai Elantra AD (2016-2020) Service Manual: PTC Heater Repair procedures
Inspection
Operating Logic Test (Manual only)
Inspect the PTC operation by confirmation logic as follows.
1.
Entering
(1)
Set the Floor mode and maximum heating position.
(2)
Turn off the blower switch.
(3)
Press the intake (recirculation) button 5 times or more.
(4)
\Indicators ...
Hyundai Elantra AD (2016-2020) Owners Manual: Light Bulbs
Consult an authorized HYUNDAI dealer to replace most vehicle light bulbs. It
is difficult to replace vehicle light bulbs because other parts of the vehicle must
be removed before you can get to the bulb. This is especially true for removing
the headlamp assembly to get to the bulb(s).
Removin ...