Toyota CH-R: RSA (Road Sign Assist)

The RSA system detects specific road signs using the front camera and/or navigation system (if equipped) (when speed limit information is available) and warns the driver via displays and buzzers.

Vehicles with connected navigation (with built-in navigation system): In order to maintain performance of the speed limit display function, it is necessary to update map data* on a regular basis.

*: For details about updates, refer to the separate "Multimedia owner's manual".

WARNING

■For safe use

• Regardless of the availability of RSA display/buzzer, including conditional speed limit alert, it is the driver who is solely responsible for driving safely and abiding by the regulations. Therefore, do not overly rely on this system. The driver is solely responsible for paying attention to the vehicle's surroundings and driving safely.
• Do not rely solely upon the RSA.

  The RSA assists the driver by providing road sign information, but it is not a replacement for the driver's own vision and awareness. Driving safely is solely the responsibility of the driver. Pay careful attention to the surrounding conditions in order to ensure safe driving.

■Situations in which the RSA should not be used

When it is necessary to disable the system

■Situations in which the system may not operate properly

Situations in which the sensors may not operate properly

Display Function

• When the front camera detects a sign or information of a sign is available from the navigation system (if equipped), the sign will be displayed on the display.
• Multiple signs can be displayed.

Depending on the specifications of the vehicle, the number of displayed signs may be limited.

■Operating conditions of sign display

Signs will be displayed when the following conditions are met:

• The system has detected a sign In the following situations, a displayed sign may stop being displayed:
• When a new sign has not been detected for a certain distance
• When the system determines that the road being driven on has changed, such as after a left or right turn

■Situations in which the display function may not operate properly

In the following situations, the RSA system may not operate properly and may not detect signs or may display the incorrect sign. However, this does not indicate a malfunction.

• When a sign is dirty, faded, tilted or bent
• When the contrast of an electronic sign is low
• When all or part of a sign is hidden by a tree, utility pole, etc.
• When a sign is detected by the front camera for a short amount of time
• When the driving state (turning, changing lanes, etc.) is judged incorrectly
• When a sign is immediately after a freeway junction or in an adjacent lane just before merging
• When stickers are attached to the rear of a preceding vehicle
• When a sign similar to a system compatible sign is detected as a system compatible sign
• When a speed limit sign for a frontage road is within detection range of the front camera
• When driving around a roundabout
• When a sign intended for trucks, etc. is detected
• When the vehicle is driven in a country with a different direction of traffic
• Vehicles with navigation system: When the navigation system map data is out of date
• Vehicles with navigation system: When the navigation system cannot be used

In this case, the speed limit signs displayed on the multi-information display and navigation system display may differ.

Notification function

In the following situations, the RSA system will output a warning to notify the driver.

• If the vehicle speed exceeds the speed warning threshold of the speed limit sign displayed on the display, the sign display will be emphasized and a buzzer will sound.

Also when the limit speed to be displayed is changed due to the change of driving zones, etc., the sign display will be emphasized and a buzzer will sound* to alert the driver.* *: The availability of emphasized display and buzzer depends on the country where the vehicle is available.

• When the RSA system detects a no-entry sign and determines that the vehicle has entered the no-entry area based on the map information of the navigation system, the no-entry sign displayed on the multi-information display will flash and a buzzer will sound. (Vehicles with a navigation system)

■Operating conditions of the notification functions

• Excess speed notification function

This function will operate when the following condition is met:

• A speed limit road sign is recognized by the system.

• No entry notification function

This function will operate when all of the following conditions are met:

• More than one no entry road signs are recognized by the system simultaneously.
• The vehicle is passing between no entry road signs recognized by the system.
• The vehicle is equipped with an onboard navigation system.