Hyundai Elantra N Owner's Manual page 387

Driver Assistance System
Reverse Parking Distance Warning can
help warn the driver if an obstacle is
detected within a certain distance when
the vehicle is moving forward or in
reverse at low speeds.
Detecting sensor
[1] : Rear ultrasonic sensors
Refer to the picture above for the detailed
location of the detecting sensors.
7-74
Reverse Parking Distance
Warning Settings
Warning Volume
With the engine on, select 'Driver Assistance
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Distance Warning.
If you change the Warning Volume, the
Warning Volume of other Driver Assistance
systems may change.
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