
2034-5. Using the driving support systems
4
Driving
2Press or of the meter control
switches and select “Vehicle Settings”,
then press “OK”
3 Press or of the meter control
switches and sele ct , then press
“OK”
4 Press or of the meter control
switches and select “RSA”, then press
“OK”
QAutomatic turn-off of RSA sign display
In the following situations, a displayed
speed limit sign and/or do not enter sign
will stop being displayed automatically:
ONo sign has been recognized for a cer-
tain distance.
OThe road changes due to a left or right
turn, etc.
In the following situations, stop and yield
signs will stop being displayed automati-
cally:
OThe system determines that your vehicle
has passed the sign.
OThe road changes due to a left or right
turn, etc.
QConditions in whic h the function may
not operate or detect correctly
In the following situations, RSA does not
operate normally and may not recognize
signs, display the inco rrect sign, etc. How-
ever, this does not indicate a malfunction.
OThe front camera is misaligned due to a
strong impact being applied to the sen-
sor, etc.
ODirt, snow, stickers, etc. are on the wind-
shield near the front camera.
OIn inclement weather such as heavy rain,
fog, snow or sand storms.
OLight from an oncoming vehicle, the sun,
etc. enters the front camera.
OThe sign is dirty, faded, tilted or bent.
OThe contrast of electronic sign is low.
OAll or part of the sign is hidden by the
leaves of a tree, a pole, etc.
OThe sign is only visible to the front camera for a short amount of time.
OThe driving scene (turning, lane change,
etc.) is judged incorrectly.
OIf a sign not appropriate for the currently
traveled lane, but the sign exists directly
after a freeway branches, or in an adja-
cent lane just before merging.
OStickers are attached to the rear of the
preceding vehicle.
OA sign resembling a system compatible
sign is recognized.
OSide road speed signs may be detected
and displayed (if positioned in sight of the
front camera) while the vehicle is travel-
ing on the main road.
ORoundabout exit road speed signs may
be detected and displayed (if positioned
in sight of the front camera) while travel-
ing on a roundabout.
OThe front of the vehicle is raised or low-
ered due to the carried load.
OThe surrounding brightness is not suffi-
cient or changes suddenly.
OWhen a sign intended for trucks, etc. is
recognized.
OThe navigation system map data is out-
dated.
OThe navigation system is not operating.
OThe speed informatio
n displayed on the
meter and on the navigation system may
be different due to the navigation system
using map data.
QSpeed limit sign display
If the power switch was last turned off while
a speed limit sign was displayed on the
multi-information display, the same sign dis-
plays again when the power switch is turned
to ON.
QIf “RSA Malfunction Visit Your Dealer”
is shown
The system may be malfunctioning. Have
the vehicle inspected by your Lexus dealer.
QCustomization
Some functions can be customized. (Cus-
tomizable features: P.421)

2244-5. Using the driving support systems
and turn it on. If the system is dis-
abled, it will remain off even if the
power switch is turned to ON mode
after the power switch has been turned
off.
QThe system can be operated when
OThe power switch is in ON mode.
OIntuitive parking assist function is on.
OThe vehicle speed is less than about 6
mph (10 km/h).
OA shift lever is shifted to a position other
than P.
QSetting the buzzer volume
The buzzer volume can be adjusted on the
multi-information display. ( P.222)
QIf “Parking Assist Unavailable Clean
Parking Assist Sensor” is displayed on
the multi-information display
A sensor may be covered with ice, snow,
dirt, etc. Remove the ice, snow, dirt, etc.,
from the sensor to return the system to nor-
mal.
Also, due to ice forming on a sensor at low
temperatures, a warning message may be
displayed or the sensor may not be able to
detect an object. Once the ice melts, the
system will return to normal.
WARNING
QCautions regarding the use of the
system
There is a limit to the degree of recogni-
tion accuracy and control performance
that this system can provide, do not
overly rely on this system. The driver is
always responsible for paying attention
to the vehicle’s surroundings and driving
safely.
QTo ensure the system can operate
properly
Observe the following precautions.
Failing to do so may result in the vehicle
being unable to be driven safely and pos-
sibly cause an accident.
ODo not damage the sensors, and
always keep them clean.
ODo not attach a sticker or install an
electronic component, such as a
backlit license plate (especially fluo-
rescent type), fog lights, fender pole or
wireless antenna near a radar sensor.
ODo not subject the surrounding area of
the sensor to a strong impact. If sub-
jected to an impact, have the vehicle
inspected by your Lexus dealer. If the
front or rear bumper needs to be
removed/installed or replaced, con-
tact your Lexus dealer.
ODo not modify, disassemble or paint
the sensors.
ODo not attach a license plate cover.
OKeep your tires properly inflated.
QWhen to disable the function
In the following situations, disable the
function as it may operate even though
there is no possibility of a collision.
OFailing to observe the warnings above.
OA non-genuine Lexus suspension
(lowered suspension, etc.) is installed.
QNotes when washing the vehicle
Do not apply intensive bursts of water or
steam to the sensor area. Doing so may
result in the sensor malfunctioning.
OWhen using a high pressure washer to
wash the vehicle, do not spray the sen-
sors directly, as doing so may cause a
sensor to malfunction.
OWhen using steam to clean the vehi-
cle, do not direct steam too close to
the sensors as doing so may cause a
sensor to malfunction.