
377
5
5-5. Using the driving support systems
Driving
Indicators
■Operation switches
Vehicle-to-vehicle distance
switch
“+RES” switch
Cruise control main switch
Cancel switch
“-SET” switch
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.386
C
A
B
C
D
E
• Conditions under which the vehicle- to-vehicle distance control mode may not function correctly: P.387
●Set the speed appropriately depending on the speed limit, traffic
flow, road conditions, weather con- ditions, etc. The driver is responsi-ble for checking the set speed.
●Even when the system is function-ing normally, the condition of the
preceding vehicle as detected by the system may differ from the con-dition 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 seri- ous injury.
●Switch the dynamic radar cruise control with full-speed range setting to off, using the cruise control main
switch when not in use.

3785-5. Using the driving support systems
WARNING
■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 fol-
lowing 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
driving, and it is not a system that can
assist the driver in low-visibility condi-
tions.
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 con- trol with full-speed range in any of the
following situations. Doing so may result in inappropriate speed control and could cause an accident 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 covered 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.
●At entrances to freeways and high- ways
●When weather conditions are bad enough that they may prevent the sensors from detecting correctly
(fog, snow, sandstorm, heavy rain, etc.)

379
5
5-5. 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, determines 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 distance 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 appears
WARNING
●When there is rain, snow, etc. on the front surface of the radar or
front camera
●In traffic conditions that require fre-
quent repeated acceleration and deceleration
●When your vehicle is towing a trailer or during emergency towing
●When an approach warning buzzer is heard often
Driving in vehicle-to-vehicle distance control mode
A
B

3805-5. Using the driving support systems
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 time). The system will
respond to changes in the speed of the vehicle ahead in order to maintain the vehi-
cle-to-vehicle distance set by the driver. Approach warning warns 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 stop (vehicle is stopped
by system control). After the vehicle ahead starts off, pressing the “+RES” switch or
depressing the accelerator pedal (start-off operation) will resume follow-up cruising.
If the start-off operation is not performed, system control continues to keep your
vehicle stopped.
When the turn signal lever is operated and your vehicle moves to an overtaking lane
while driving at 50 mph (80 km/h) or more, the vehicle will accelerate to help to over-
take a passing vehicle.
The system’s identification of what is an overtaking lane may be determined solely
based on the location of the steering wheel in the vehicle (left side driver position
versus right side driver position.) If the vehicle is driven to a region where the over-
taking lane is on a different side from where the vehicle is normally driven, the vehi-
cle may accelerate when the turn signal lever is operated in the opposite direction to
the overtaking lane (e.g., if the driver normally operates the vehicle in a region
where the overtaking lane is to the right but then drives to a region where the over-
taking lane is to the left, the vehicle may accelerate when the right turn signal is acti-
vated).
Example of acceleration
When there are no longer any preceding vehicles driving slower than the
set speed
The system accelerates until the set speed is reached. The system then returns to
constant speed cruising.
1Press the cruise control main
switch to activate the cruise con-
trol.
Dynamic radar cruise control indicator
will come on and a message will be dis-
played on the multi-information display.
Press the switch again to deactivate the
cruise control.If the cruise control main switch is
pressed and held for 1.5 seconds or
more, the system turns on in constant
C
Setting the vehicle speed
(vehicle-to-vehicle distance
control mode)

383
5
5-5. Using the driving support systems
Driving
1 Pressing the cancel switch can-
cels the speed control.
The speed control is also canceled
when the brake pedal is depressed.
(When the vehicle has been stopped by
system control, depressing the brake
pedal does not cancel the setting.)
2 Pressing the “+RES” switch
resumes the cruise control and
returns vehicle speed to the set
speed.
When your vehicle is too close to a
vehicle ahead, and sufficient auto-
matic deceleration via the cruise
control is not possible, the display
will flash and the buzzer will sound
to alert the driver. An example of
this would be if another driver cuts
in front of you while you are follow-
ing a vehicle. Depress the brake
pedal to ensure an appropriate
vehicle-to-vehicle distance.
■Warnings may not occur when
In the following instances, warnings
may not occur even when the vehi-
cle-to-vehicle distance is small.
When the speed of the preceding
vehicle matches or exceeds your
vehicle speed
When the preceding vehicle is
traveling at an extremely slow
speed
Immediately after the cruise con-
trol speed was set
When depressing the accelerator
pedal
When constant speed control mode
is selected, your vehicle will main-
tain a set speed without controlling
Canceling and resuming the
speed control
Approach warning (vehicle-
to-vehicle distance control
mode)
Selecting constant speed
control mode

3865-5. Using the driving support systems
●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.
●Pre-collision braking is activated.
●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 (vehicles with RSA)
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.375), 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.353, 578)
■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.383) 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
●When your vehicle is pointing upwards (caused by a heavy load in the luggage compartment, etc.)

3885-5. Using the driving support systems
*: If equipped
■Meter display
Set speed
Indicators
■Operation switches
“+RES” switch
Cruise control main switch
“-SET” switch
Cancel switch
1 Press the cruise control main
switch to activate the cruise con-
trol.
Cruise control indicator will be dis- played.Press the switch again to deactivate the
Cruise control*
Use the cruise control to main-
tain a set speed without
depressing the accelerator
pedal.
System Components
A
B
A
B
C
D
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using the cruise control main switch when not in use.
■Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.Doing so may result in loss of control
and could cause an accident resulting in death or serious injury.
●In heavy traffic
●On roads with sharp bends
●On winding roads
●On slippery roads, such as those covered with rain, ice or snow
●On steep hillsVehicle speed may exceed the set speed when driving down a steep
hill.
●When your vehicle is towing a
trailer or during emergency towing
Setting the vehicle speed

3905-5. Using the driving support systems
1Pressing the cancel switch can-
cels the constant speed control.
The speed setting is also canceled
when the brakes are applied.
2 Pressing the “+RES” switch
resumes the constant speed
control.
Resuming is available when the vehicle
speed is more than approximately 30
km/h (20 mph).
■Cruise control can be set when
●The shift lever is in D.
●Vehicle speed is above approximately 30 km/h (20 mph).
■Accelerating after setting the vehi-
cle speed
●The vehicle can be accelerated nor-
mally. After acceleration, the set speed resumes.
●Even without canceling the cruise control, the set speed can be increased by first accelerating the
vehicle to the desired speed and then pushing the “-SET” switch to set the
new speed.
■Automatic cancelation of cruise control
Cruise control will stop maintaining the
vehicle speed in any of the following sit-
uations.
●Actual vehicle speed falls more than approximately 16 km/h (10 mph)
below the preset vehicle speed.
●Actual vehicle speed is below approxi-
mately 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.
■If the warning message for the cruise control is shown on the
multi-information display
Press the cruise control main switch once to deactivate the system, and then
press the switch again to reactivate the system.If the cruise control speed cannot be set
or if the cruise control cancels immedi- ately after being activated, there may be a malfunction in the cruise control sys-
tem. Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer.
Canceling and resuming the
constant speed control