The RSA system recognizes specific road signs using the front camera to provide information to the driver via the display.

If the system judges that the vehicle is being driven over the speed limit, performing prohibited actions, etc.
according to the recognized road signs, it notifies the driver through a visual notification and notification buzzer.
WARNING
â– Before using the RSA
Do not rely solely upon the RSA system. RSA is a system which supports the driver by providing information, but it is not a replacement for a driver's own vision and awareness. Drive safely by always paying careful attention to the traffic rules.
Indication on the multi-information display
When the front camera recognizes a sign, the sign will be displayed on the multi-information display.
Vehicles with 12.3-inch display: A maximum of 2 signs can be displayed.

- Speed limit sign
- Do Not Enter sign (when notification is necessary)

If signs other than speed limit signs are recognized, they will be displayed in an overlapping stack under the current speed limit sign.
Supported types of road signs
The following types of road signs, including electronic signs and blinking signs, are recognized.
A non-official or a recently introduced traffic sign may not be recognized.
Speed limit
Do Not Enter
Stop
Yield
Notification function
In the following situations, the RSA system will notify the driver.
Depending on the situation, a notification function may not operate properly.
â– Automatic 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:
In the following situations, stop and yield signs will stop being displayed automatically:
â– 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 malfunction.
â– Speed limit sign display
If the engine switch was last turned off while a speed limit sign was displayed on the multi-information display, the same sign displays again when the engine switch is turned to ON.
â– If "RSA Malfunction Visit Your Dealer" is shown
The system may be malfunctioning.
Have the vehicle inspected by your Toyota dealer.
â– Customization
Some functions can be customized.
Indications on multi-information
display
Dynamic radar cruise control
with full-speed rangeSteering angle sensor zero point malfunction
Description
The skid control ecu learns the steering sensor zero point every time the
ignition switch is turned on and
the vehicle is driven at 35 km/h (22 mph) or more for approximately 5 seconds.
The ecu also stores the
previous zero point.
If front wheel alignment or the steering wh ...
Front wiper motor
Inspection
Inspect front wiper motor
Check the lo operation.
Connect the battery's positive (+) lead to
terminal 5 (+1) and the negative (-) lead to
terminal 4 (e), and check that the front wiper
motor operates at low speed (lo).
Ok:
front wiper motor operates at low sp ...
Differential oil
On-vehicle inspection
Check differential oil
Stop the vehicle on a level surface.
Using a 10 mm socket hexagon wrench, remove the
rear differential filler plug and gasket.
Check that the oil level is between 0 to 5 mm (0 to
0.20 In.) From the bottom lip of the different ...