Kia Sedona: Warning message
Type B

Type C
The message will appear to notify the driver 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 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 system will work normally.
This warning message may lit up in rural areas with little traffic or open terrains such as wide expanse of desert. Additionally, heavy snow or rain may trigger the warning message.
If the system does not work normally even though the foreign substance is removed, take your vehicle to an authorized Kia dealer and have the system checked.

Type B

Type C
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.
Have your vehicle inspected by an authorized Kia dealer.
Detecting sensor
RCTA (Rear Cross Traffic Alert)Heater Unit Components and Components Location
Component Location
1. Heater Unit
Components
[LH]
1. Joint Flange Pad2. Evaporator Tube Seal3. Evaporator Core Assembly4. Mode Actuator Assembly5. Mode Cam6. Heater Core Cover7. Heater ...
Massage Control Unit Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the front seat back cover.
(Refer to Body - "Front Seat Back Cover")
3.
Disconnect the lumbar support motor connectors ( ...