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4-1. Before driving
Driving
at a time to prevent steering
error. Have someone guide you
when reversing to lessen the risk
of an accident.
■Increasing vehicle-to-vehicle
distance
At a speed of 10 km/h (6 mph), the
distance to the vehicle running
ahead of you should be equivalent
to or greater than the combined
length of your vehicle and trailer.
Avoid sudden braking that may
cause skidding. Otherwise, the
vehicle may spin out of control. This
is especially true when driving on
wet or slippery road surfaces.
■Sudden acceleration/steering
input/cornering
Executing sharp turns when towing
may result in the trailer colliding
with your vehicle. Decelerate well in
advance when approaching turns
and take them slowly and carefully
to avoid sudden braking.
■Important points regarding
turning
The wheels of the trailer will travel
closer to the inside of the curve
than the wheels of the vehicle. To
make allowance for this, take the
turns wider than you would nor-
mally do.
■Important points regarding
stability
Vehicle movement resulting from
uneven road surfaces and strong
crosswinds will affect handling. The
vehicle may also be rocked by
passing buses or large trucks. Fre-
quently check behind when moving
alongside such vehicles. As soon
as such vehicle movement occurs,
immediately start to decelerate
smoothly by slowly applying the
brakes. Always steer the vehicle
straight ahead while braking.
■Passing other vehicles
Consider the total combined length
of your vehicle and trailer and
ensure that the vehicle-to-vehicle
distance is sufficient before execut-
ing lane changes.
■Transmission information
To maintain engine braking effi-
ciency and charging system perfor-
mance when using engine braking,
do not use the transmission in D.
( P.197)
■If the engine overheats
Towing a loaded trailer up a long,
steep incline in temperatures
exceeding 30°C (85°F) may result
in the engine overheating. If the
engine coolant temperature gauge
indicates that the engine is over-
heating, turn the air conditioning off
immediately, leave the road and
stop the vehicle in a safe place.
( P.477)
■When parking the vehicle
Always place wheel chocks under
the wheels of both the vehicle and
trailer. Firmly set the parking brake
and shift the shift lever to P.

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4-5. Using the driving support systems
4-5.Using the d riving s upport sy ste ms
*: If equipped
■PCS (Pre-Collision System)
P. 2 3 1
■LTA (Lane Tracing Assist)
P. 2 4 2
■AHS (Adaptive High-beam
System) (if equipped)
P. 2 1 1
■AHB (Automatic High Beam)
(if equipped)
P. 2 1 5
■RSA (Road Sign Assist)
P. 2 6 6
■Dynamic radar cruise control
with full-speed range
P. 2 5 2
Two types of sensors, located
behind the front grille and wind-
shield, detect information neces-
sary to operate the drive assist
systems.
Radar sensor
Front camera
Toyota Safety Sense*
The Toyota Safety Sense con-
sists of the following drive
assist systems and contrib-
utes to a safe and comfortable
driving experience:
Driving assist system
WARNING
■Toyota Safety Sense
The Toyota Safety Sense is designed
to operate under the assumption that the driver will drive safely, and is designed to help reduce the impact to
the occupants and the vehicle in the case of a collision or assist the driver in normal driving conditions.
As there is a limit to the degree of rec- ognition accuracy and control perfor-mance that this system can provide,
do not overly rely on this system. The driver is always responsible for paying attention to the vehicle’s surroundings
and driving safely.
Sensors

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4-5. Using the driving support systems
Driving
When you turn right/left, pedes-
trian is detected in the forward
direction and estimated to enter
your vehicle’s path (bicyclists are
not detected.)
WARNING
■Limitations of the pre-collision system
●The driver is solely responsible for safe driving. Always drive safely, taking care to observe your sur-
roundings. Do not use the pre-collision system instead of normal braking opera-
tions under any circumstances. This system will not prevent colli-sions or lessen collision damage or
injury in every situation. Do not overly rely on this system. Failure to do so may lead to an accident,
resulting in death or serious injury.
●Although this system is designed to help avoid a collision or help reduce the impact of the collision, its effec-
tiveness may change according to various conditions, therefore the system may not always be able to
achieve the same level of perfor- mance.Read the following conditions care-
fully. Do not overly rely on this sys- tem and always drive carefully.
• Conditions under which the system may operate even if there is no pos-sibility of a collision: P. 2 3 8
• Conditions under which the system may not operate properly: P. 2 3 9
●Do not attempt to test the operation of the pre-collision system yourself.
Depending on the objects used for testing (dummies, cardboard objects imitating detectable objects,
etc.), the system may not operate properly, possibly leading to an accident.
■Pre-collision braking
●When the pre-collision braking
function is operating, a large amount of braking force will be applied.
●If the vehicle is stopped by the operation of the pre-collision brak-
ing function, the pre-collision brak- ing function operation will be canceled after approximately 2 sec-
onds. Depress the brake pedal as necessary.
●The pre-collision braking function may not operate if certain opera-tions are performed by the driver. If
the accelerator pedal is being depressed strongly or the steering wheel is being turned, the system
may determine that the driver is tak- ing evasive action and possibly pre-vent the pre-collision braking
function from operating.

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4-5. Using the driving support systems
Driving
WARNING
■Before using LTA system
●Do not rely solely upon the LTA sys-
tem. The LTA system does not automatically drive the vehicle or reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always assume full responsibility for driving
safely by paying careful attention to the surrounding conditions and operating the steering wheel to cor-
rect the path of the vehicle. Also, the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv-
ing operations and pay careful attention may lead to an accident, resulting in death or serious injury.
■Situations unsuitable for LTA system
In the following situations, use the LTA switch to turn the system off. Fail-ure to do so may lead to an accident,
resulting in death or serious injury.
●Vehicle is driven on a road surface
which is slippery due to rainy weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov-ered road.
●White (yellow) lines are difficult to see due to rain, snow, fog, dust, etc.
●Vehicle is driven in a temporary lane or restricted lane due to con-
struction work.
●Vehicle is driven in a construction
zone.
●A spare tire, tire chains, etc., are
equipped.
●When the tires have been exces-
sively worn, or when the tire infla- tion pressure is low.
●When your vehicle is towing a trailer or during emergency towing.
■Preventing LTA system malfunc-tions and operations performed by mistake
●Do not modify the headlights or place stickers, etc., on the surface of the lights.
●Do not modify the suspension, etc. If the suspension, etc., needs to be
replaced, contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Do not install or place anything on the hood or grille. Also, do not
install a grille guard (bull bars, kan- garoo bar, etc.).
●If your windshield needs repairs, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■Conditions in which functions
may not operate properly
In the following situations, the func- tions may not operate properly and
the vehicle may depart from its lane. Drive safely by always paying careful attention to your surroundings and
operate the steering wheel to correct the path of the vehicle without relying solely on the functions.
●When the follow-up cruising dis-play is displayed ( P.248) and the
preceding vehicle changes lanes. (Your vehicle may follow the pre-ceding vehicle and also change
lanes.)

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4-5. Using the driving support systems
*: If equipped
In vehicle-to-vehicle distance con-
trol mode, the vehicle automati-
cally accelerates, decelerates and
stops to match the speed changes
of the preceding vehicle even if the
accelerator pedal is not depressed.
In constant speed control mode,
the vehicle runs at a fixed speed.
Use the dynamic radar cruise con-
trol with full-speed range on free-
ways and highways.
Vehicle-to-vehicle distance con-
trol mode ( P.255)
Constant speed control mode
( P.259)
■Meter display
Multi-information display
Set speed
Indicators
■Operation switches
Vehicle-to-vehicle distance
switch
“+RES” switch
Cancel switch
“-SET” switch
Cruise control main switch
Dynamic radar cruise
control with full-speed
range*
Summary of functions
System components
WARNING
■Before using dynamic radar cruise control with full-speed range
●Driving safely is the sole responsi-bility of the driver. Do not rely solely on the system, and drive safely by
always paying careful attention to your surroundings.
●The dynamic radar cruise control with full-speed range provides driv-ing assistance to reduce the
driver’s burden. However, there are limitations to the assistance pro-vided.
Read the following conditions care-
fully. Do not overly rely on this system
and always drive carefully.
• When the sensor may not be cor-
rectly detecting the vehicle ahead: P.262

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4-5. Using the driving support systems
Driving
This mode employs a radar to detect the presence of vehicles up to approx-
imately 100 m (328 ft.) ahead, d etermines the current vehicle-to-vehicle fol-
lowing distance, and operates to maintain a suitable following distance from
the vehicle ahead. The desired vehicle-to-vehicle distance can also be set
by operating the vehicle-to-vehicle distance switch.
When driving on downhill slopes, the vehicle-to-vehicle distanc e may become
shorter.
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver.
Example of deceleration cruising and follow-up cruising
When a preceding vehicle driving slower than the set speed appe ars
When a vehicle is detected running ahead of you, the system automatically deceler-
ates your vehicle. When a greater reduction in vehicle speed is necessary, the sys-
tem applies the brakes (the stop lights will come on at this ti me). The system will
respond to changes in the speed of the vehicle ahead in order t o maintain the vehi-
cle-to-vehicle distance set by the driver. Approach warning war ns you when the sys-
tem cannot decelerate sufficiently to prevent your vehicle from closing in on the
vehicle ahead.
When the vehicle ahead of you stops, your vehicle will also sto p (vehicle is stopped
by system control). After the vehicle ahead starts off, pressin g the “+RES” switch or
depressing the accelerator pedal (start-off operation) will res ume follow-up cruising.
If the start-off operation is not performed, system control con tinues to keep your
vehicle stopped.
Driving in vehicle-to-vehicle distance control mode

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4-5. Using the driving support systems
1Long
2 Medium
3 Short
If a vehicle is running ahead of you, the
preceding vehicle mark will also be
displayed.
Select a distance from the table
below. Note that the distances
shown correspond to a vehicle
speed of 80 km/h (50 mph). Vehi-
cle-to-vehicle distance
increases/decreases in accor-
dance with vehicle speed. When
the vehicle is stopped by system
control, the vehicle stops at a cer-
tain vehicle-to-vehicle distance
depending on the situation.
After the vehicle ahead of you
starts off, press the “+RES” switch.
Your vehicle will also resume follow-up
cruising if the accelerator pedal is
depressed after the vehicle ahead of
you starts off.
“Push Cruise Control Switch or
Press Accelerator to Resume”
Vehicle-to-vehicle distance
settings (vehicle-to-vehicle
distance control mode)
Distance
options
Vehicle-to-vehicle dis-
tance
LongApproximately 50 m (160
ft.)
MediumApproximately 40 m (130
ft.)
ShortApproximately 30 m (100
ft.)
Resuming follow-up cruis-
ing when the vehicle has
been stopped by system
control (vehicle-to-vehicle
distance control mode)
Distance
options
Vehicle-to-vehicle dis-
tance

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4-5. Using the driving support systems
■Automatic cancelation of constant
speed control mode
Constant speed control mode is auto- matically canceled in the following situa-
tions:
●Actual vehicle speed is more than
approximately 16 km/h (10 mph) below the set vehicle speed.
●Actual vehicle speed falls below approximately 30 km/h (20 mph).
●VSC is activated.
●TRC is activated for a period of time.
●When the VSC or TRC system is turned off.
●When the brake control or output restriction control of a driving support
system operates. (For example: Pre-Collision System, Drive-Start Control)
●The parking brake is operated.
If constant speed control mode is auto-
matically canceled for any reasons other than the above, there may be a malfunc-tion in the system. Contact any autho-
rized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
■The Dynamic Radar Cruise Control
with Road Sign Assist may not operate properly when (if equipped)
As the Dynamic Radar Cruise Control with Road Sign Assist may not operate properly in conditions in which RSA may
not operate or detect correctly ( P.269), when using this function, make sure to check the speed limit sign
displayed.
In the following situations, the set speed may not be changed to the recognized
speed limit by pressing and holding the “+RES”/“-SET” switch.
●If speed limit information is not avail-able
●When the recognized speed limit is the same as the set speed
●When the recognized speed limit is
outside of the speed range that the
dynamic radar cruise control system can operate
■Brake operation
A brake operation sound may be heard
and the brake pedal response may change, but these are not malfunctions.
■Warning messages and buzzers for dynamic radar cruise control with
full-speed range
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for cau- tion while driving. If a warning message is shown on the multi-information dis-
play, read the message and follow the instructions. ( P.229, 445)
■When the sensor may not be cor- rectly detecting the vehicle ahead
In the case of the following and depend- ing on the conditions, operate the brake pedal when deceleration of the system
is insufficient or operate the accelerator pedal when acceleration is required.
As the sensor may not be able to cor-
rectly detect these types of vehicles, the approach warning ( P.259) may not be activated.
●Vehicles that cut in suddenly
●Vehicles traveling at low speeds
●Vehicles that are not moving in the
same lane
●Vehicles with small rear ends (trailers
with no load on board, etc.)
●Motorcycles traveling in the same lane
●When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor