Kia Optima Manual page 168

Non-operational conditions of
Back-Up Warning System
The Back-Up Warning System may
not operate properly when:
1. Moisture is frozen to the sensor. (It
will operate normally when the
moisture has been cleared.)
2. The sensor is covered with foreign
matter, such as snow or water, or
the sensor cover is blocked. (It will
operate normally when the materi-
al is removed or the sensor is no
longer blocked.)
3. Driving on uneven road surfaces.
(unpaved roads, gravel, bumps,
gradient.)
4. Objects generating excessive
noise (vehicle horns, loud motor-
cycle engines, or truck air brakes)
are within range of the sensor.
5. Heavy rain or water spray exists.
6. Wireless transmitters or mobile
phones are within range of the
sensor.
7. The sensor is covered with snow.
8. Trailer towing.
The detecting range may decrease
when:
1. The sensor is stained with foreign
matter such as snow or water.
(The sensing range will return to
normal when removed.)
2. Outside air temperature
extremely hot or cold.
The following objects may not be
recognized by the sensor:
1. Sharp or slim objects such as
ropes, chains or small poles.
2. Objects which tend to absorb the
sensor frequency such as clothes,
spongy material or snow.
3. Undetectable objects smaller than
1 m (40 in.) in height and narrower
than 14 cm (6 in.) in diameter.
Features of your vehicle
Back-Up Warning System pre-
cautions
• The Back-Up Warning System may
not sound sequentially depending
on the speed and shapes of the
objects detected.
is
• The Back-Up Warning System may
malfunction if the vehicle bumper
height or sensor installation has
been modified or damaged. Any
non-factory installed equipment or
accessories may also interfere with
the sensor performance.
• The sensor may not recognize
objects less than 30 cm (11 in.)
from the sensor, or it may sense an
incorrect distance. Use caution.
• When the sensor is frozen or stained
with snow, dirt, or water, the sensor
may be inoperative until the stains
are removed using a soft cloth.
• Do not push, scratch or strike the
sensor. Sensor damage could occur.
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