The Secondary Collision Brake- Page 230

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4-5. Using the driving support systems

controlling the brakes, engine output 
and steering assist.

■

The Secondary Collision Brake

When the SRS airbag sensor detects a 
collision and the system operates, the 
brakes and brake lights are automati-
cally controlled to reduce the vehicle 
speed and help reduce the possibility 
of further damage due to a secondary 
collision.

■

When the TRAC/VSC systems are 

operating

The slip indicator light will flash while the 

TRAC/VSC systems are operating.

■

Disabling the TRAC system

If the vehicle gets stuck in mud, dirt or snow, 

the TRAC system may reduce power from 
the engine to the wheels. Pressing the 

switch to turn the system off may make it 

easier for you to rock the vehicle in order to 

free it.
To turn the TRAC system off, quickly press 
and release 

 switch.

The “Traction Control Turned Off” will be 
shown on the multi-information display.

Press the 

 switch again to turn the sys-

tem back on.

■

Turning off both TRAC and VSC sys-

tems

To turn the TRAC and VSC systems off, 
press and hold the 

 switch for more 

than 3 seconds while the vehicle is stopped.
The VSC OFF indicator light will come on 
and the “Traction Control Turned Off” will 
be shown on the multi-information display.

*

Press the 

 switch again to turn the sys-

tem back on.

*

: Pre-collision brake assist and pre-colli-

sion braking will also be disabled. The 
pre-collision system warning light will 
come on and the message will be shown 
on the multi-information display. 
(



P.174)

■

When the message is displayed on the 

multi-information display showing that 

TRAC has been disabled even if the 

VSC OFF switch has not been pressed

TRAC is temporary deactivated. If the infor-

mation continues to show, contact your 

Lexus dealer.

■

Operating conditions of hill-start assist 

control

When the following four conditions are met, 

the hill-start assist control will operate:

●

The shift lever is in a position other than P 

or N (when starting off forward/back-

ward on an upward incline)

●

The vehicle is stopped

●

The accelerator pedal is not depressed

●

The parking brake is not engaged

●

Engine switch is turned to IGNITION 

ON mode