RSA (Road Sign Assist)- Page 184

184

4-5. Using the driving support systems

type is set to 

.

■

Vehicle sway warning function

When the system determines that the vehi-

cle is swaying while the vehicle sway warn-

ing function is operating, a buzzer sounds 

and a warning message urging the driver to 

rest and the symbol shown in the illustration 

are simultaneously displayed on the 

multi-information display.

Depending on the vehicle and road condi-

tions, the warning may not operate.

■

Warning message

If the following warning message is dis-

played on the multi-information display and 

the LTA indicator illuminates in orange, fol-

low the appropriate troubleshooting proce-

dure. Also, if a different warning message is 

displayed, follow the instructions displayed 

on the screen.

●

“LTA Malfunction Visit Your Dealer”

The system may not be operating properly. 

Have the vehicle inspected by your Lexus 

dealer.

●

“LTA Unavailable”

The system is temporarily canceled due to 

a malfunction in a sensor other than the 

front camera. Turn the LTA system off, wait 

for a little while, and then turn the LTA sys-

tem back on.

●

“LTA Unavailable at Current Speed”

The function cannot be used as the vehicle 

speed exceeds the LTA operation range. 

Drive slower.

■

Customization

Function settings can be changed. (Cus-

tomizable features:



P.388)

*

: If equipped

The RSA system recognizes specific 
road signs using the front camera 
and/or navigation system (when speed 
limit information is available) to provide 
information to the driver via the display.

If the system judges that the vehicle is 
being driven over the speed limit, per-
forming prohibited actions, etc. 
according to the recognized road 
signs, it notifies the driver through a 
visual notification and notification 
buzzer.

When the front camera recognizes a 

RSA (Road Sign Assist)

*

Summary of function

WARNING

■

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-informa-
tion display