Kia Optima Hybrid 2017 Owner's Manual page 510

Detecting sensor
The sensors are located inside the rear
bumper.
Always keep the rear bumper clean for
the system to work properly.
Warning message
OJF055091L
The message will appear to notify the
driver if there are foreign substances
on the rear bumper or it is hot near the
rear bumper. The light on the switch
and the system will be turned off auto‐
matically.
Remove the foreign substance on the
rear bumper.
After the foreign substance is removed,
if you drive for approximately 10 mi‐
nutes, the system will work normally.
If the system does not work normally
even though the foreign substance is
removed, take your vehicle to an au‐
thorized Kia dealer and have the sys‐
tem checked.
It is possible to get the message with
no foreign substance on the rear
bumper, for example, when driving in
sparse rural or open area, such as des‐
ert, where there is insufficient data for
operation.
This message may also activate during
heavy rain or due to road spray.
In this case, the vehicle does not need
service.
OJF055247L
If the system does not work properly, a
warning message will appear and the
light on the switch will turn off. The
system will turn off automatically.
We recommend you to have the sys‐
tem checked by an authorized Kia deal‐
er.
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