591-4. Theft deterrent system
1
For safety and security
1-4.Theft deterrent system
The indicator light flashes after the
engine switch has been turned off to
indicate that the system is operating.
The indicator light stops flashing after
the engine switch has been turned to
ACCESSORY or IGNITION ON
mode to indicate that the system has
been canceled.
■System maintenance
The vehicle has a maintenance-free type
engine immobilizer system.
■Conditions that may cause the system to
malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touch-
ing a key registered to the security sys-
tem (key with a built-in transponder chip)
of another vehicleEngine immobilizer system
The vehicle’s keys have built-in
transponder chips that prevent the
engine from starting if a key has not
been previously registered in the
vehicle’s on-board computer.
Never leave the keys inside the
vehicle when you leave the vehicle.
This system is designed to help pre-
vent vehicle theft but does not guar-
antee absolute security against all
vehicle thefts.
Operating the system
NOTICE
■To ensure the system operates cor-
rectly
Do not modify or remove the system. If
modified or removed, the proper opera-
tion of the system cannot be guaranteed.
652-1. Instrument cluster
2
Vehicle status information and indicators
Warning lights inform the driver of
malfunctions in the indicated vehicle’s
systems.
Warning lights
(U.S.A.)
Brake system warning light*1
( P.351)
(red)
(Canada)
Brake system warning light*1
( P.351)
(yellow)
Brake system warning light*1
( P.351)
High coolant temperature
warning light
*2 ( P.351)
Charging system warning
light
*2 ( P.352)
Low engine oil pressure warn-
ing light
*2 ( P.352)
(U.S.A.)
Malfunction indicator lamp*1
( P.352)
(Canada)
Malfunction indicator lamp*1
( P.352)
SRS warning light
*1 ( P.352)
(U.S.A.)
ABS warning light*1 ( P.353)
(Canada)
ABS warning light*1 ( P.353)
Inappropriate pedal operation
warning light
*2 ( P.353)
(red)
Electric power steering system
warning light
*1 ( P.353)
(yellow)
Electric power steering system
warning light
*1 ( P.353)
Low fuel level warning light
( P.354)
Driver’s and front passenger’s
seat belt reminder light
( P.354)
Rear passengers’ seat belt
reminder lights
*2 ( P.354)
Tire pressure warning light
*1
( P.355)
(orange)
LTA indicator*2 ( P.355)
(flashes)
Intuitive parking assist OFF indi-
cator
*1 (if equipped) ( P.355)
(flashes)
RCTA OFF indicator*1
( P.356)
(flashes)
RCD OFF indicator (if
equipped) ( P.356)
(flashes)
PKSB OFF indicator*1 (if
equipped) ( P.356)
(flashes or
illuminates)PCS warning light*1 ( P.357)
Slip indicator
*1 ( P.357)
(flashes)
(U.S.A.)
Parking brake indicator
( P.357)
(flashes)
(Canada)
Parking brake indicator
( P.357)
662-1. Instrument cluster
*1: These lights come on when the engine switch is turned to IGNITION ON
mode to indicate that a system check is
being performed. They will turn off after
the engine is started, or after a few sec-
onds. There may be a malfunction in a
system if the lights do not come on, or
turn off. Have the vehicle inspected by
your Lexus dealer.
*2: This light illuminates on the multi-infor-mation display.
The indicators inform the driver of the
operating state of the vehicle’s various
systems.
(flashes)
Brake hold operated indica-
tor
*1 ( P.358)
Master warning light
*1
( P.358)
WARNING
■If a safety system warning light does
not come on
Should a safety system light such as the
ABS and SRS warning light not come on
when you start the engine, this could
mean that these systems are not avail-
able to help protect you in an accident,
which could result in death or serious
injury. Have the vehicle inspected by
your Lexus dealer immediately if this
occurs.
Indicators
Turn signal indicator ( P.153)
(U.S.A.)
Headlight indicator ( P.158)
(Canada)
Tail light indicator ( P.158)
Headlight high beam indicator
( P.160)
Automatic High Beam indicator
( P.161)
PCS warning light
*1, 2 ( P.176)
Cruise control indicator
*3
( P.198)
Dynamic radar cruise control
indicator
*3 ( P.198)
Cruise control “SET” indica-
tor
*3 ( P.198)
(white)
LTA indicator*3 ( P.191)
(green)
LTA indicator*3 ( P.176, 191)
(orange)
(flashes)LTA indicator*3 ( P.191)
BSM outside rear view mirror
indicators
*1, 4 ( P.208, 223)
BSM indicator ( P.208)
Intuitive parking assist OFF indi-
cator
*1, 2 (if equipped)
( P.217)
RCTA OFF indicator
*1, 2
( P.224)
RCD OFF indicator
*2 (if
equipped) ( P.229)
PKSB OFF indicator
*1, 2 (if
equipped) ( P.234)
(flashes)
Slip indicator*1 ( P.247)
VSC OFF indicator
*1, 2
( P.247)
1774-5. Using the driving support systems
4
Driving
■Intersection right/left turn assis-
tance
If the system determines that there is a
high possibility of a collision in the fol-
lowing situations, it will assist with Pre-
collision warning and, if necessary Pre-
collision braking.
Depending on the configuration of the
intersection, it may not be possible to
support.
When you turn right/left at an inter-
section and cross the path of an
oncoming vehicle
When you turn right/left, pedestrian
is detected in the forward direction
and estimated to enter your vehi-
cle’s path (bicyclists are not
detected.)■Suspension control (if equipped)
When the system determines that the
possibility of a frontal collision is high,
the Adaptive Variable Suspension Sys-
tem ( P.247) will control the damp-
ing force of the shock absorbers to
help maintain an appropriate vehicle
posture.
WARNING
■Limitations of the pre-collision sys-
tem
●The driver is solely responsible for safe
driving. Always drive safely, taking
care to observe your surroundings.
Do not use the pre-collision system
instead of normal braking operations
under any circumstances. This system
will not prevent collisions or lessen col-
lision damage or injury in every situa-
tion. Do not overly rely on this system.
Failure to do so may lead to an acci-
dent, resulting in death or serious
injury.
1934-5. Using the driving support systems
4
Driving
• Steering wheel is not operated with a steering force level suitable for changing
lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
●Vehicle sway warning function
This function operates when all of the fol-
lowing conditions are met.
• Setting for “Warning” in of the multi- information display is set to “On”.
( P.76)
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• Width of traffic lane is approximately 9.8
ft. (3 m) or more.
• No system malfunctions are detected. ( P.194)
●Lane centering function
This function operates when all of the fol-
lowing conditions are met.
• LTA is turned on.
• Setting for “Lane Center” in of the multi-information display is set to “On”.
( P.76)
• This function recognizes white (yellow) lane lines or the position of a preceding
vehicle (except when the preceding vehi-
cle is small, such as a motorcycle).
• The dynamic radar cruise control with full-speed range is operating in vehicle-
to-vehicle distance control mode.
• Width of traffic lane is approximately 10 to 13 ft. (3 to 4 m).
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P.194)
• Vehicle does not accelerate or deceler-
ate by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for changing
lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P.194)
• The vehicle is being driven in the center of a lane.
• Steering assist function is not operating.
■Temporary cancelation of functions
●When operation conditions are no lon-
ger met, a function may be temporarily
canceled. However, when the operation
conditions are met again, operation of
the function is automatically restored.
( P.192)
●If the operation conditions ( P.190) are
no longer met while the lane centering
function is operating, the steering wheel
may vibrate and the buzzer may sound to
indicate that the function has been tem-
porarily canceled. Howe ver, if the “Alert”
customization setting is set to , the
system will notify the driver by vibrating
the steering wheel instead of sounding
the buzzer.
■Steering assist function/lane centering
function
●Depending on the vehicle speed, lane
departure situation, road conditions, etc.,
the driver may not feel the function is
operating or the function may not oper-
ate at all.
●The steering control of the function is
overridden by the driver’s steering wheel
operation.
●Do not attempt to test the operation of
the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to
hear due to external noise, audio play-
back, etc. Also, it may be difficult to feel
steering wheel vibrations due to the road
conditions, etc.
●If the edge of the course* is not clear or
straight, the lane departure alert function
may not operate.
●It may not be possible for the system to
determine if there is a danger of a colli-
sion with a vehicle in an adjacent lane.
●Do not attempt to test the operation of
the lane departure alert function.
*: Boundary between asphalt and the side
of the road, such as grass, soil, or a curb
1994-5. Using the driving support systems
4
Driving
WARNING
●Even when the system is functioning
normally, the condition of the preced-
ing vehicle as detected by the system
may differ from the condition
observed by the driver. Therefore, the
driver must always remain alert, assess
the danger of each situation and drive
safely. Relying solely on this system or
assuming the system ensures safety
while driving can lead to an accident,
resulting in death or serious injury.
●Switch the dynamic radar cruise con-
trol with full-speed range setting to off,
using the cruise control main switch
when not in use.
■Cautions regarding the driving assist
systems
Observe the following precautions, as
there are limitations to the assistance
provided by the system.
Failure to do so may cause an accident
resulting in death or serious injury.
●Assisting the driver to measure follow-
ing distance
The dynamic radar cruise control with
full-speed range is only intended to
help the driver in determining the fol-
lowing distance between the driver’s
own vehicle and a designated vehicle
traveling ahead. It is not a mechanism
that allows careless or inattentive driv-
ing, and it is not a system that can assist
the driver in low-visibility conditions.
It is still necessary for driver to pay
close attention to the vehicle’s sur-
roundings.
●Assisting the driver to judge proper
following distance
The dynamic radar cruise control with
full-speed range determines whether
the following distance between the
driver’s own vehicle and a designated
vehicle traveling ahead is within a set
range. It is not capable of making any
other type of judgement. Therefore, it
is absolutely necessary for the driver to
remain vigilant and to determine
whether or not there is a possibility of
danger in any given situation.
●Assisting the driver to operate the
vehicle
The dynamic radar cruise control with
full-speed range does not include
functions which will prevent or avoid
collisions with vehicles ahead of your
vehicle. Therefore, if there is ever any
possibility of danger, the driver must
take immediate and direct control of
the vehicle and act appropriately in
order to ensure the safety of all
involved.
■Situations unsuitable for dynamic
radar cruise control with full-speed
range
Do not use dynamic radar cruise control
with full-speed range in any of the follow-
ing situations.
Doing so may result in inappropriate
speed control and could cause an acci-
dent resulting in death or serious injury.
●Roads where there are pedestrians,
cyclists, etc.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those cov-
ered with rain, ice or snow
●On steep downhills, or where there
are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set
speed when driving down a steep hill.
2194-5. Using the driving support systems
4
Driving
attention to the following objects:
●Wires, fences, ropes, etc.
●Cotton, snow and other materials that
absorb sound waves
●Sharply-angled objects
●Low objects
●Tall objects with upper sections project-
ing outwards in the direction of your vehi-
cle
People may not be detected if they are
wearing certain types of clothing.
■Situations in which the system may not
operate properly
Certain vehicle conditions and the sur-
rounding environment may affect the ability
of a sensor to correctly detect objects. Par-
ticular instances where this may occur are
listed below.
●There is dirt, snow or ice on a sensor.
(Cleaning the sensors will resolve this
problem.)
●A sensor is frozen. (Thawing the area will
resolve this problem.)
In especially cold weather, if a sensor is
frozen the sensor display may be dis-
played abnormally, or objects, such as a
wall, may not be detected.
●When a sensor or the area around a sen-
sor is extremely hot or cold.
●On an extremely bumpy road, on an
incline, on gravel, or on grass.
●When vehicle horns, vehicle detectors,
motorcycle engines, air brakes of large
vehicles, the clearance sonar of other
vehicles or other devices which produce
ultrasonic waves are near the vehicle.
●A sensor is coated with a sheet of spray
or heavy rain.
●If objects draw too close to the sensor.
●When a pedestrian is wearing clothing
that does not reflect ultrasonic waves (ex.
skirts with gathers or frills).
●When objects that are not perpendicular
to the ground, not perpendicular to the
vehicle traveling direction, uneven, or
waving are in the detection range.
●Strong wind is blowing.
●When driving in inclement weather such
as fog, snow or a sandstorm.
●When an object that cannot be detected
is between the vehicle and a detected
object.
●If an object such as a vehicle, motorcycle,
bicycle or pedestrian cuts in front of the
vehicle or runs out from the side of the
vehicle.
●If the orientation of a sensor has been
changed due to a collision or other
impact.
●When equipment that may obstruct a
sensor is installed, such as a towing eye-
let, bumper protector (an additional trim
strip, etc.), bicycle carrier, or snow plow.
●If the front of the vehicle is raised or low-
ered due to the carried load.
●If the vehicle cannot be driven in a stable
manner, such as when the vehicle has
been in an accident or is malfunctioning.
●When tire chains, a compact spare tire or
an emergency tire puncture repair kit are
used.
■Situations in which the system may
operate even if there is no possibility of a
collision
In some situations, such as the following, the
system may operate even though there is
no possibility of a collision.
●When driving on a narrow road.
2464-5. Using the driving support systems
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the
brakes are applied suddenly, or if the
brakes are applied while driving on a
slippery road surface
■Brake assist
Generates an increased level of brak-
ing force after the brake pedal is
depressed when the system detects a
panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving suddenly or turning on
slippery road surfaces.
■Enhanced VSC (Enhanced Vehi-
cle Stability Control)
Provides cooperative control of the
ABS, TRAC, VSC and EPS.
Helps to maintain directional stability
when swerving on slippery road sur-
faces by controlling steering perfor-
mance.
■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.
■TRAC (Traction Control)
Helps to maintain drive power and
prevent the drive wheels from spinning
when starting the vehicle or accelerat-
ing on slippery roads
■Active Cornering Assist (ACA)
Helps to prevent the vehicle from drift-
ing to the outer side by performing
inner wheel brake control when
attempting to accelerate while turning
■Hill-start assist control
Helps to reduce the backward move-
ment of the vehicle when starting on an
uphill
■Dynamic Torque Control AWD
system (AWD models)
Automatically switches from front-
wheel drive to all-wheel drive (AWD)
according to the driving conditions,
helping to ensure reliable handling and
stability. Examples of conditions where
the system will switch to AWD are
when cornering, going uphill, starting
off or accelerating, and when the road
surface is slippery due to snow, rain,
etc.
■EPS (Electric Power Steering)
Employs an electric motor to reduce
the amount of effort needed to turn the
Driving assist systems
To keep driving safety and perfor-
mance, the following systems oper-
ate automatically in response to
various driving situations. Be
aware, however, that these systems
are supplementary and should not
be relied upon too heavily when
operating the vehicle.
Summary of the driving assist
systems