Hyundai Sonata LF Owner's Manual page 512

Detecting sensor
The sensors are located inside of the
rear bumper.
Always keep the rear bumper clean
for the system to work properly.
Warning message
OLF054054
The message will appear to notify
the driver if there are foreign sub-
stances on the rear bumper. The light
on the switch and the system will
turn off automatically.
Remove the foreign substance on
the rear bumper. After the foreign
substance is removed, if you drive for
approximately 10 minutes, the sys-
tem will work normally.
If the system does not work normally
even though the foreign substance is
removed, we recommend that you
take your vehicle to an authorized
HYUNDAI dealer and have the sys-
tem checked.
If the system does not work properly,
OLF054217N
a warning message will appear and
the light on the switch will turn off.
The system will turn off automatical-
ly. We recommend that you have
your vehicle inspected by an author-
ized HYUNDAI dealer.
OLF054434N
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