Toyota RAV4 2019 Owner's Manual page 212

210
4-5. Using the driving support systems
Supported types of road
signs
The following types of road signs,
including electronic signs and blink-
ing signs, are recognized.
A non-official or a recently introduced
traffic sign may not be recognized.
Speed limit
Warning display
In the following situations, the RSA
system will alert the driver.
 When the vehicle speed exceeds
the speed warning threshold of
the speed limit sign displayed,
the sign display will be empha-
sized and a buzzer will sound.
Depending on the situation, traffic
environment (traffic direction,
speed unit) may be detected incor-
rectly and a warning display may
not operate properly.
■
Setting procedure
P.75
■
Automatic turn-off of RSA sign dis-
play
In the following situations, a displayed
speed limit sign will stop being displayed
automatically:
●
A new sign is not recognized for a cer-
tain distance.
●
The road changes due to a left or right
turn, etc.
■
Conditions in which the function
may not operate or detect correctly
In the following situations, RSA does not
operate normally and may not recognize
signs, display the incorrect sign, etc.
However, this does not indicate a mal-
function.
●
The front camera is misaligned due to
a strong impact being applied to the
sensor, etc.
●
Dirt, snow, stickers, etc. are on the
windshield near the front camera.
●
In inclement weather such as heavy
rain, fog, snow or sand storms
●
Light from an oncoming vehicle, the
sun, etc. enters the front camera.
●
The sign is dirty, faded, tilted or bent,
and if an electronic sign, the contrast
is poor.
●
All or part of the sign is hidden by the
leaves of a tree, a pole, etc.
●
The sign is only visible to the front
camera for a short amount of time.
●
The driving scene (turning, lane
change, etc.) is judged incorrectly.
●
Even if it is a sign not appropriate for
the currently traveled lane, such a
sign exists directly after a freeway
branches, or in an adjacent lane just
before merging.
●
Stickers are attached to the rear of the
preceding vehicle.
●
A sign resembling a system compati-
ble sign is recognized.
●
Side road speed signs may be
detected and displayed (if positioned
in sight of the front camera) while the