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250
4-5. Using the driving support systems
be shown on the multi-information display.
Press the
tems back on.
*
: On vehicles with PCS (Pre-Collision
System), pre-collision brake assist,
pre-collision braking, and steering con-
trol (performed through cooperative
control of PCS and LDH) (if equipped)
will also be disabled. The Pre-Collision
System warning light will come on and a
message will be displayed on the
multi-information display. (P.204)
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 cannot be operated. 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.
●
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 moved to P or N.
●
The accelerator pedal is depressed.
●
The parking brake is engaged.
●
Approximately 2 seconds elapse after
●
the brake pedal is released.
VGRS is disabled when
■
VGRS may stop operating in the following
situations.
In this event, the steering wheel may move
RC350-RC300_OM_General_OM24884E
switch again to turn the sys-
from its straight forward position, but it will
*
return when the system restarts.
When the steering wheel is operated for
●
an extended period of time while the
vehicle is stopped or is moving very
slowly
(on vehicles with LDH, DRS is disabled
together with VGRS)
When the steering wheel has been held
●
fully to the left or right
The center position of the steering wheel
may change when VGRS is disabled. How-
ever, the position will return to normal after
VGRS is reactivated.
When the battery is disconnected (vehi-
■
cles with VGRS)
The steering wheel may move from its
straight forward position, but this will be
corrected automatically when driving.
Sounds and vibrations caused by the
■
ABS, brake assist, VSC, TRC, hill-start
assist control and VGRS systems
A sound may be heard from the engine
●
compartment when the brake pedal is
depressed repeatedly, when the engine is
started or just after the vehicle begins to
move. This sound does not indicate 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 after the
vehicle comes to a stop.
• The brake pedal may pulsate slightly after
the ABS is activated.
• The brake pedal may move down slightly
after the ABS is activated.
EPS, VGRS and DRS operation sound
■
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunction.
Reactivation of the TRC/VSC systems
■
Even after the TRC/VSC systems have
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