
13Pictorial index
Precautions against winter season ............................................................................ P.253
To prevent freezing (windshield wiper de-icer)
*................................................. P.267
Precautions against car wash
*.................................................................................... P.299
Fuel filler door .......................................................................................................... P.169
Refueling method .............................................................................................................. P .169
Fuel type/fuel tank capacity .........................................................................................P.390
Tires.......................................................................................................................... .P.320
Tire size/inflation pressure ...........................................................................................P.395
Winter tires/tire chain ..................................................................................................... P.2 51
Checking/rotation/tire pressure warning system..............................................P.320
Coping with flat tires........................................................................................................ P .365
Hood ........................................................................................................................... P.310
Opening ................................................................................................................................ P.310
Engine oil ..............................................................................................................................P.390
Coping with overheating............................................................................................... P.382
Warning messages ........................................................................................................... P.36 1
Headlights/side marker lights/cornering lights............................................P.158
Turn signal lights ......................................................................................................P.153
Parking lights/daytime running lights...............................................................P.158
Tail/stop lights ..........................................................................................................P.158
License plate lights .................................................................................................P.158
Back up lights
Shifting the shift lever to R ........... ................................................................................... P.15 0
*: If equipped
Light bulbs of the exterior lights for driving
(Replacing method: P.338, Watts: P.396)
E
F
G
H
I
J
K
L

1794-5. Using the driving support systems
4
Driving
■Enabling/disabling the pre-colli-
sion system
The pre-collision system can be
enabled/disabled on ( P.77) of
the multi-information display.
The system is automatically enabled each
time the engine switch is turned to ON.
If the system is disabled, the PCS warn-
ing light will turn on and a message will
be displayed on the multi-information
display.
■Changing the pre-collision warn-
ing timing
The pre-collision warning timing can
be changed on ( P.77) of the
multi-information display.
The warning timing setting is retained
when the engine switch is turned OFF.
However, if the pre-collision system is dis-
abled and re-enabled, the operation timing
will return to the default setting (middle).
If the pre-collision warning timing is
WARNING
■When to disable the pre-collision sys-
tem
In the following situations, disable the
system, as it may not operate properly,
possibly leading to an accident resulting
in death or serious injury:
●When the vehicle is being towed
●When your vehicle is towing another
vehicle
●When transporting the vehicle via
truck, boat, train or similar means of
transportation
●When the vehicle is raised on a lift with
the engine running and the tires are
allowed to rotate freely
●When inspecting the vehicle using a
drum tester such as a chassis
dynamometer or speedometer tester,
or when using an on vehicle wheel bal-
ancer
●When a strong impact is applied to the
front bumper or front grille, due to an
accident or other reasons
●If the vehicle cannot be driven in a sta-
ble manner, such as when the vehicle
has been in an accident or is malfunc-
tioning
●When the vehicle is driven in a sporty
manner or off-road
●When the tires are not properly
inflated
●When the tires are very worn
●When tires of a size other than speci-
fied are installed
●When tire chains are installed
●When a compact spare tire or an
emergency tire puncture repair kit is
used
●If equipment (snow plow, etc.) that
may obstruct the radar sensor or front
camera is temporarily installed to the
vehicle
Changing settings of the pre-
collision system

1894-5. Using the driving support systems
4
Driving
■Lane departure alert function
When the system determines that the
vehicle might depart from its lane or
course
*, a warning is displayed on the
multi-information display, and either a
warning buzzer will sound or the steer-
ing wheel will vibrate to alert the driver.
When the warning buzzer sounds or the
steering wheel vibrates, check the area
around your vehicle and carefully operate
the steering wheel to move the vehicle
back to the center of the lane.
When the system determines that the vehi-
cle might depart from its lane and that the
possibility of a collision with an overtaking
vehicle in the adjacent lane is high, the lane
departure alert will operate even if the turn
signals are operating.
*: Boundary between asphalt and the side of the road, such as grass, soil, or a curb
WARNING
●Light from the headlights of an oncom-
ing vehicle, the sun, etc. enters the
camera.
●The vehicle is driven on a slope.
●The vehicle is driven on a road which
tilts left or right, or a winding road.
●The vehicle is driven on an unpaved or
rough road.
●The traffic lane is excessively narrow
or wide.
●The vehicle is extremely tilted due to
carrying heavy luggage or having
improper tire pressure.
●The distance to the preceding vehicle
is extremely short.
●The vehicle is moving up and down a
large amount due to road conditions
during driving (poor roads or road
seams).
●When driving in a tunnel or at night
with the headlights off or when a head-
light is dim due to its lens being dirty or
it being misaligned.
●The vehicle is struck by a crosswind.
●The vehicle is affected by wind from a
vehicle driven in a nearby lane.
●The vehicle has just changed lanes or
crossed an intersection.
●Tires which differ by structure, manu-
facturer, brand or tread pattern are
used.
●When tires of a size other than speci-
fied are installed.
●Snow tires, etc. are equipped.
●The vehicle is being driven at
extremely high speeds.
Functions included in LTA sys-
tem

2274-5. Using the driving support systems
4
Driving
wet with standing water during bad
weather, such as heavy rain, snow, or fog.
●When multiple vehicles are approaching
with only a small gap between each vehi-
cle.
●When a vehicle is approaching at high
speed.
●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.
●When backing up on a slope with a sharp
change in grade.
●When backing out of a sharp angle park-
ing spot.
●When towing a trailer.
●When there is a significant difference in
height between your vehicle and the
vehicle that enters the detection area.
●When a sensor or the area around a sen-
sor is extremely hot or cold.
●If the suspension has been modified or
tires of a size other than specified are
installed.
●If the front of the vehicle is raised or low-
ered due to the carried load.
●When turning while backing up.
●When a vehicle turns into the detection
area.
■Situations in which the system may
operate even if there is no possibility of a
collision
Instances of the RCTA function unneces-
sarily detecting a vehicle and/or object may
increase in the following situations:
●When the parking space faces a street
and vehicles are being driven on the
street.
●When the distance between your vehicle
and metal objects, such as a guardrail,
wall, sign, or parked vehicle, which may
reflect electrical waves toward the rear of
the vehicle, is short.

2284-5. Using the driving support systems
●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.
●When a vehicle passes by the side of your
vehicle.
●When a detected vehicle turns while
approaching the vehicle.
●When there are spinning objects near
your vehicle such as the fan of an air con-
ditioning unit.
●When water is splashed or sprayed
toward the rear bumper, such as from a
sprinkler.
●Moving objects (flags, exhaust fumes,
large rain droplets or snowflakes, rain
water on the road surface, etc.).
●When the distance between your vehicle
and a guardrail, wall, etc., that enters the
detection area is short.
●Gratings and gutters.
●When a sensor or the area around a sen-
sor is extremely hot or cold.
●If the suspension has been modified or
tires of a size other than specified are
installed.
●If the front of the vehicle is raised or low-
ered due to the carried load.

2314-5. Using the driving support systems
4
Driving
■Situations in which the system may not
operate properly
●Some pedestrians, such as the following,
may not be detected by the rear camera
detection function, preventing the func-
tion from operating properly:
• Pedestrians who are bending forward or squatting
• Pedestrians who are lying down
• Pedestrians who are running
• Pedestrians who suddenly enter the detection area
• People riding a bicycle, skateboard, or other light vehicle
• Pedestrians wearing oversized clothing such as a rain coat, long skirt, etc., making
their silhouette obscure
• Pedestrians whose body is partially hid- den by an object, such as a cart or
umbrella
• Pedestrians which are obscured by dark- ness, such as at night
●In some situations, such as the following,
pedestrians may not be detected by the
rear camera detection function, prevent-
ing the function from operating properly:
• When backing up in inclement weather (rain, snow, fog, etc.)
• When the rear camera is obscured (dirt, snow, ice, etc. are attached) or scratched
• When a very bright light, such as the sun,
or the headlights of another vehicle,
shines directly into the rear camera
• When backing up in a place where the
surrounding brightness changes sud-
denly, such as at the entrance or exit of a
garage or underground parking lot
• When backing up in a dim environment such as during dusk or in an underground
parking lot
• When the camera position and direction are deviated
• When a towing hook is attached
• When water droplets are flowing on the camera lens
• When the vehicle height is extremely
changed (nose up, nose down)
• When tire chains or an emergency tire
puncture repair kit are used
■Situations in which the system may
operate unexpectedly
●Even though there are no pedestrians in the detection area, some objects, such as
the following, may be detected, possibly
causing the rear camera detection func-
tion to operate.
• Three dimensional objects, such as a pole, traffic cone, fence, or parked vehi-
cle
• Moving objects, such as a car or motor- cycle
• Objects moving toward your vehicle when backing up, such as flags or pud-
dles (or airborne matter, such as smoke,
steam, rain, or snow)
• Cobblestone or gravel roads, tram rails, road repairs, white lines, pedestrian
crossings or fallen leaves on the road
• Metal covers (gratings), such as those used for drainage ditches
• Objects reflected in a puddle or on a wet road surface
•Shadows on the road
●In some situations, such as the following,
the rear camera detection function may
operate even though there are no pedes-
trians in the detection area.
• When backing up toward the roadside or
a bump on the road
• When backing up toward an incline/decline
• If the rear of the vehicle is raised or low- ered due to the carried load
• If a bumper protector, such as an addi-
tional trim strip, is installed to the rear
bumper
• If the orientation of the rear camera has
been changed due to a collision or other
impact, or removal and installation
• If a towing eyelet is installed to the rear of
the vehicle
• When water is flowing over the rear cam- era lens
• When the rear camera is obscured (dirt, snow, ice, etc. are attached) or scratched
• If there is a flashing light in the detection
area, such as the emergency flashers of
another vehicle
• When tire chains or an emergency tire puncture repair kit are used.
●Situations in which the rear camera
detection function may be difficult to
notice
• The buzzer may be difficult to hear if the surrounding area is noisy, the volume of

2334-5. Using the driving support systems
4
Driving
■Parking Support Brake function
(rear pedestrians) (if equipped)
A rear camera sensor is used to detect
pedestrians in the detection area
behind the vehicle when backing up.
( P.244)
WARNING
■Cautions regarding the use of the
system
Do not overly rely on the system, as
doing so may lead to an accident.
Always drive while checking the safety of
the surroundings of the vehicle.
Depending on the vehicle and road con-
ditions, weather, etc., the system may not
operate.
The detection capabilities of sensors and
radars are limited. Always drive while
checking the safety of the surroundings
of the vehicle.
●The driver is solely responsible for safe
driving. Always drive carefully, taking
care to observe your surroundings.
The Parking Support Brake system is
designed to provide support to lessen
the severity of collisions. However, it
may not operate in some situations.
●The Parking Support Brake system is
not designed to stop the vehicle com-
pletely. Additionally, even if the system
has stopped the vehicle, it is necessary
to depress the brake pedal immedi-
ately as brake control will be canceled
after approximately 2 seconds.
●It is extremely dangerous to check the
system operations by intentionally
driving the vehicle in to the direction of
a wall, etc. Never attempt such actions.
■When to disable the Parking Support
Brake
In the following situations, disable the
Parking Support Brake as the system
may operate even though there is no
possibility of a collision.
●When inspecting the vehicle using a
chassis roller, chassis dynamo or free
roller.
●When loading the vehicle onto a boat,
truck or other transport vessel.
●If the suspension has been modified or
tires of a size other than specified are
installed.
●If the front of the vehicle is raised or
lowered due to the carried load.
●When equipment that may obstruct a
sensor is installed, such as a towing
eyelet, bumper protector (an addi-
tional trim strip, etc.), bicycle carrier,
or snow plow.
●When using automatic car washing
devices.
●If the vehicle cannot be driven in a sta-
ble manner, such as when the vehicle
has been in an accident or is malfunc-
tioning.
●When the vehicle is driven in a sporty
manner or off-road.
●When the tires are not properly
inflated.
●When the tires are very worn.
●When tire chains, a compact spare tire
or an emergency tire puncture repair
kit are used.

2504-5. Using the driving support systems
WARNING
■TRAC/VSC may not operate effec-
tively when
Directional control and power may not
be achievable while driving on slippery
road surfaces, even if the TRAC/VSC
system is operating.
Drive the vehicle carefully in conditions
where stability and power may be lost.
■Active Cornering Assist does not
operate effectively when
●Do not overly rely on Active Corner-
ing Assist. Active Cornering Assist
may not operate effectively when
accelerating down slopes or driving on
slippery road surfaces.
●When Active Cornering Assist fre-
quently operates, Active Cornering
Assist may temporarily stop operating
to ensure proper operation of the
brakes, TRAC and VSC.
■Hill-start assist control does not oper-
ate effectively when
●Do not overly rely on hill-start assist
control. Hill-start assist control may
not operate effectively on steep
inclines and roads covered with ice.
●Unlike the parking brake, hill-start
assist control is not intended to hold
the vehicle stationary for an extended
period of time. Do not attempt to use
hill-start assist control to hold the vehi-
cle on an incline, as doing so may lead
to an accident.
■When the TRAC/VSC is activated
The slip indicator light flashes. Always
drive carefully. Reckless driving may
cause an accident. Exercise particular
care when the indicator light flashes.
■When the TRAC/VSC systems are
turned off
Be especially careful and drive at a
speed appropriate to the road condi-
tions. As these are the systems to help
ensure vehicle stability and driving force,
do not turn the TRAC/VSC systems off
unless necessary.
■Secondary Collision Brake
Do not rely solely upon the Secondary
Collision Brake. This system is designed
to help reduce the possibility of further
damage due to a secondary collision,
however, that effect changes according
to various conditions. Overly relying on
the system may result in death or serious
injury.
■Replacing tires
Make sure that all tires are of the speci-
fied size, brand, tread pattern and total
load capacity. In addition, make sure that
the tires are inflated to the recom-
mended tire inflation pressure level.
The ABS, TRAC and VSC systems will
not function correctly if different tires are
installed on the vehicle.
Contact your Lexus dealer for further
information when replacing tires or
wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or
modifying the suspension will affect the
driving assist systems, and may cause a
system to malfunction.