Lexus RX 450h Owner's Manual page 380

378 4-5. Using the driving support systems
Turning off both TRC, VSC and Trailer
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Sway Control systems
To turn the TRC, VSC and Trailer Sway
Control 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
tem back on.
*
: On vehicles with PCS (Pre-Collision
System), PCS will also be disabled (only
Pre-Collision warning is available). The
PCS warning light will come on and a
message will be displayed on the
multi-information display. (P.290)
When the message is displayed on the
■
multi-information display showing that
TRC has been disabled even if the
switch has not been pressed
TRC 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
●
� � � � � � � � � � � � � � � � �
switch again to turn the sys-
The parking brake is not engaged
●
Automatic system cancelation of
■
hill-start assist control
The hill-start assist control will turn off in any
of the following situations:
The shift lever is shifted to P or N
●
The accelerator pedal is depressed
●
The parking brake is engaged
●
2 seconds at maximum elapsed after the
●
brake pedal is released
Sounds and vibrations caused by the
■
ABS, brake assist, VSC, Trailer Sway
Control, TRC and hill-start assist control
systems
A sound may be heard from the engine
●
compartment when the brake pedal is
*
depressed repeatedly, when the hybrid
system is started or just after the vehicle
begins to move. This sound does not indi-
cate that a malfunction has occurred in
any of these systems.
Any of the following conditions may
●
occur when the above systems are oper-
ating. None of these indicates that a mal-
function has occurred.
• Vibrations may be felt through the vehicle
body and steering.
• A motor sound may be heard also after
the vehicle comes to a stop.
ECB operating sound
■
ECB operating sound may be heard in the
following cases, but it does not indicate that
a malfunction has occurred.
Operating sound heard from the engine
●
compartment when the brake pedal is
operated.
Motor sound of the brake system heard
●
from the front part of the vehicle when
the driver's door is opened.
Operating sound heard from the engine
●
compartment when one or two minutes
passed after the stop of the hybrid sys-
tem.
Active Cornering Assist operation
■
sounds and vibrations
When the Active Cornering Assist is oper-