Page 291 of 724
2914-5. Using the driving support systems
4
Driving
The estimated course lines move even though the steering wheel is straight
There is a malfunction in the signals being
output by the steering sensor.Have the vehicle inspected by your Lexus
dealer.
Guide lines are not displayed
The trunk is open.
Close the trunk.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
The estimated course lines are not displayed
• The steering wheel has been moved
while the battery was being reinstalled.
• Battery power is low.
• The steering sensor has been rein- stalled.
• There is a malfunction in the signals being output by the steering sensor.Stop the vehicle, and turn the steering
wheel as far as it will go to the left and
right.
If this does not resolve the symptom, have
the vehicle inspected by your Lexus
dealer.
Likely causeSolution
Page 292 of 724

2924-5. Using the driving support systems
WARNING
■When using the Lexus parking assist monitor system
The parking assist monitor is a supplemental device intended to assist the driver when
backing up. When backing up, be sure to check visually behind and all around the vehi-
cle before proceeding.
Observe the following precautions to avoid an accident that could result in death or
serious injuries.
●Never depend on the parking assist monitor entirely when backing up. The image
and the position of the guide lines displaye d on the screen may differ from the actual
state.
Use caution, just as you woul d when backing up any vehicle.
●Be sure to back up slowly, depressing the brake pedal to control vehicle speed.
●If you seem likely to hit nearby vehicles, obstacles, people or mount the shoulder,
depress the brake pedal to stop the vehicle.
●The instructions given are only guidelines.
When and how much to turn the steering wh eel will vary according to traffic condi-
tions, road surface conditions , vehicle condition, etc. when parking. It is necessary to
be fully aware of this before using the parking assist system.
●When parking, be sure to check that the parking space will accommodate your vehi-
cle before maneuvering into it.
●Do not use the parking assist monitor in the following cases:
• On icy or slick road surfaces, or in snow
• When using tire chains or emergency tires
• When the trunk is not closed completely
• On roads that are not flat or stra ight, such as curves or slopes.
●In low temperatures, the screen may darken or the image may become faint. The
image could distort when the vehicle is movi ng, or you may become unable to see the
image on the screen. Be sure to check dire ct visually and with the mirrors all around
the vehicle before proceeding.
●If the tire sizes are changed, the position of the guide lines displayed on the screen
may change.
●The camera uses a special lens. The distances between objects and pedestrians that
appear in the image displayed on the screen will differ from the actual distances.
( → P. 287)
●Estimated course line display mode: If the st eering wheel is straight and the vehicle
width guide lines and the estimated course lines are not in alignment, have the vehicle
inspected by your Lexus dealer.
Page 300 of 724
3004-5. Using the driving support systems
The slip indicator light will flash while
the TRAC/VSC systems are operating.
If the vehicle gets stuck in mud, dirt or snow, the TRAC system may reduce
power from the engine to the wheels. Pressing (
) to turn the system
off may make it easier for you to ro ck the vehicle in order to free it.
RC350/RC300/RC200t
To turn the TRAC system off, quickly
press and release .
The “TRAC OFF” will be shown on the
multi-information display.
Press again to turn the system
back on.
When the TRAC/VSC systems are operating
Disabling the TRAC system
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3014-5. Using the driving support systems
4
Driving
RC F
To turn the TRAC system off, quickly
press and release ( ).
The “TRAC OFF” indicator light will
come on.
Press ( ) again to turn the
system back on.
■Turning off both TRAC and VSC systems
RC350/RC300/RC200t
To turn the TRAC and VSC systems off, pr ess and hold for more than 3 seconds
while the vehicle is stopped.
The VSC OFF indicator light will come on an d the “TRAC OFF” will be shown on the
multi-information display.
*1
Press again to turn the systems back on.
RC F
To turn the TRAC and VSC systems off, press and hold ( ) for more than
3 seconds.
The “TRAC OFF” indicator li ght and the VSC OFF indicator light will come on.
*2
Press ( ) again to turn the systems back on.
*1: On vehicles with PCS (Pre-Collision System ), pre-collision brake assist, pre-collision
braking, and steering control (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 displaye d on the multi-information display. (→P. 585)
*2: On vehicles with PCS (Pre-Collision System), pre-collision brake assist and pre-colli-
sion braking will also be disabled. The pr e-collision system warning light will come on
and a message will be displayed on the multi-information display. ( →P. 585)
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3024-5. Using the driving support systems
■Expert mode (RC F)
When expert mode is selected, it is possible to drive in a more sp orty manner than other
drive modes. Expert mode disables the TRAC and VSC systems but the engine and
brakes may be controlled depending on the vehicle behavior.
■When the message is displayed on the mu lti-information display showing that TRAC
has been disabled even if has not been pressed (RC350/RC300/RC200t)
TRAC and hill-start assist control cannot be operated. Contact your Lexus dealer.
■When the “TRAC OFF” indicator light comes on even if ( ) has not been
pressed (RC F)
TRAC and hill-start assist control cannot be operated. Contact your Lexus dealer.
■VGRS is disabled when
VGRS may stop operating in the following situations.
In this event, the steering wheel may move 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. However,
the position will return to normal after VGRS is reactivated.
■When the battery is disconnected (vehicles with VGRS)
The steering wheel may move from its straight forward position, but this will be corrected
automatically when driving. To select expert mode, press
()
when in SPORT S+ mode.
The “EXPERT” indicator will come on together
with the TRAC OFF and VSC OFF indicators.
To cancel expert mode, press
() or
use the driving mode sele ct switch to select a
driving mode other than SPORT S+ mode.
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3064-5. Using the driving support systems
◆Pre-collision warning
When a high possibility of a frontal
collision is detected, the pre-colli-
sion system warning light flashes, a
buzzer sounds and a message is
shown on the multi-information dis-
play to urge the driver to take eva-
sive action.
◆Pre-collision brake assist
When there is a high possibility of a frontal collision, the system applies
greater braking force in relation to how strongly the brake pedal is depressed.
The system may not warn the driver us ing a warning light, warning display and
buzzer when the system detects and judges braking operations.
◆Pre-collision braking
When there is a high possibility of a frontal collision, the system warns the
driver using a warning light, warning display and buzzer. If the system deter-
mines that a collision is unavoidable, the brakes are automatically applied to
reduce the collision speed.
◆Suspension control (if equipped)
When the system determines that there is a high possibility of a frontal colli-
sion, the operation of Adaptive Variable Suspension System ( →P. 299) opti-
mally controls the damping force of the shock absorber.
PCS (Pre-Collision System)∗
∗
: If equipped
When the radar sensor detects the possibi lity of a frontal collision, brakes are
automatically engaged to lessen impact as well as vehicle damage.
The pre-collision system can be turned on and off as necessary by operating
the switch. ( →P. 307)
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3104-5. Using the driving support systems
■When there is a malfunction in the system or if the system is temporarily unusable
The pre-collision system warning light will flash and warning messages will be displayed.
( → P. 566, 578)
■Certification
For vehicles sold in the U.S.A.
FCC ID: BABFT0041A
CAUTION: Radio Frequenc y Radiation Exposure
This equipment complies with FCC radiation ex posure limits set forth for an uncontrolled
environment.
This equipment should be inst alled and operated keeping th e radiator at least 20cm or
more away from person’s body (excluding ex tremities: hands, wrists, feet and ankles).
Co-location: This transmitter must not be co-l ocated or operated in conjunction with any
other antenna or transmitter.
This device complies with part 15 of the FC C Rules. Operation is subject to the following
two conditions: (1) This device may not caus e harmful interference, and (2) this device
must accept any interference received, includ ing interference that may cause undesired
operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for compli-
ance could void the user's authority to operate the equipment.
For vehicles sold in Canada
IC: 2024B-FT0041A
This device complies with Industry Canada licence-exempt RSS standard(s). Operation
is subject to the following two conditions: (1) this device may not cause interference, and
(2) this device must accept any interference, including interference that may cause
undesired operation of the device.
Page 314 of 724

3144-5. Using the driving support systems
BSM main switch
This switch is for both the BSM function and RCTA function.
Pressing the switch turns the system on or of f. When the switch is turned on, the indi-
cator on the switch illuminates.
Outside rear view mirror indicators
BSM function:
When a vehicle is detected in a blind spot of the outside rear view mirrors or
approaching rapidly from behind into a blin d spot, the outside rear view mirror indi-
cator on the detected side will illuminate. If the turn signal lever is operated toward
the detected side, the outside rear view mirror indicator will flash.
RCTA function:
When a vehicle approaching from the right or left at the rear of the vehicle is
detected, both outsid e rear view mirror indicators will flash.
Monitor screen display (RCTA function only) (if equipped)
If a vehicle approaching from the right or left at the rear of the vehicle is detected, the
RCTA icon ( →P. 322) for the detected side will be displayed on the monitor screen.
This illustration shows an example of a vehi cle approaching from the left at the rear of
the vehicle.
RCTA buzzer (RCTA function only)
If a vehicle approaching from the right or left at the rear of the vehicle is detected, a
buzzer will sound. The buzzer also sounds for approximately 1 second immediately
after the BSM main switch is operated to turn the system on.
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