TOYOTA SIENNA 2017 XL30 / 3.G Owners Manual

SIENNA_OM_OM08007U_(U)
2714-5. Using the driving support systems
4
Driving
Example of deceleration cruising
When the vehicle ahead is drivi ng slower than the set speed
When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle speed is
necessary, the system applies the brakes. A warning tone warns you when
the system cannot decelerate sufficiently to prevent your vehicle from clos-
ing in on the vehicle ahead.
Example of follow-up cruising
When following a vehicle driving slower than the set speed
The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration
When there are no longer any vehi cles ahead driving slower than
the set speed
The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
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. Apply the brakes to ensure an appropriate vehicle-to-
vehicle distance.
■Warnings may not occur when
In the following instances, there is a possibility that the warnings will
not occur:
● When the speed of the vehicle ahead matches or exceeds your
vehicle speed
● When the vehicle ahead is traveling at an extremely slow speed
● Immediately after the crui se control speed was set
● At the instant the accelerator is applied
Approach warning
2
3
4

272
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
When constant speed cont rol mode is selected, your vehicle will main-
tain a set speed without controlling the vehicle-to-vehicle distance.
Select this mode only when vehicl e-to-vehicle distance control mode
does not function co rrectly due to a dirty radar sensor, etc.
Press the “ON-OFF” button to
activate the cruise control.
Press the button again to deacti-
vate the cruise control.
Switch to constant speed con-
trol mode.
(Push the lever forward and
hold for approximately one sec-
ond)
Constant speed control mode indicator will be displayed.
When in constant speed control mode, to return to vehicle-to-vehicle dis-
tance control mode, push the leve r forward again and hold for approxi-
mately 1 second.
After the desired speed has been set, it is not possible to return to vehicle-
to-vehicle distance control mode.
If the engine switch is turned off and then turned to IGNITION ON mode
again, the vehicle will automatically return to vehicle-to-vehicle distance
control mode.
Adjusting the speed setting: P. 268
Canceling and resuming the speed setting: P. 270
Selecting conventional cons tant speed control mode
1
2

SIENNA_OM_OM08007U_(U)
2734-5. Using the driving support systems
4
Driving
■Dynamic radar cruise control can be set when
●The shift lever is in the D or the range 4 or higher of S has been selected.
● Vehicle speed is above approximately 30 mph (50 km/h).
■ Accelerating after setting the vehicle speed
The vehicle can accelerate normally. After acceleration, the set speed
resumes. However, during vehicle-to-vehicle distance control mode, the vehi-
cle speed may decrease below the set speed in order to maintain the dis-
tance to the vehicle ahead.
■ Automatic cancelation of vehic le-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the fol-
lowing situations:
● Actual vehicle speed falls below approximately 25 mph (40 km/h).
● VSC is activated.
● The sensor cannot operate correctly because it is covered in some way.
● The windshield wipers are operating at high speed (when the wiper switch is
set to the “AUTO” mode or the high speed wiper operation position).
If vehicle-to-vehicle distance control driving is automatically canceled for any
other reason, there may be a malfunction in the system. Contact your Toyota
dealer.
■ Automatic cancelation of constant speed control
The cruise control will stop maintaining the vehicle speed in the following situ-
ations.
● Actual vehicle speed is more than approximately 10 mph (16 km/h) below
the set vehicle speed.
At this time, the memorized set speed is not retained.
● Vehicle speed falls below approximately 25 mph (40 km/h).
● VSC is activated.
■ Radar sensor and grille cover
Always keep the sensor and grille cover clean to ensure that the vehicle-to-
vehicle distance control operates properly. (Some obstructions, such as
snow, ice and plastic objects, cannot be detected by the obstruction sensor.)
Dynamic radar cruise control is canceled if an obstruction is detected.
Grille cover
Radar sensor
1
2

274
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
■Operation guide display
●When the dynamic radar cruise control switch is operated, a guidance dis-
play is shown on the multi-information display for a few seconds as to how
to operate the dynamic radar cruise control switch or distance switch.
(P. 98)
● When selecting or tab on the multi-information display:
 P. 9 4
■ Warning messages and buzzers for dynamic radar cruise control
Warning messages and buzzers are used to indicate a system malfunction or
to inform the driver of the need for caution while driving. ( P. 559, 560)
■ Certification
For vehicles sold in the U.S.A.
FCC ID: HYQDNMWR004
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) This device may not cause harmful interfer-
ence, and (2) this device must accept any interference received, including
interference that may cause undesired operation.
FCC WARNING
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Radiofrequency radiation exposure Information:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment.
This equipment should be installed and operated with minimum distance of
20 cm between the radiator (antenna) and your body.
This transmitter must not be co-located or operating in conjunction with any
other antenna or transmitter.
For vehicles sold in Canada
This device complies with Industry Canada licence-exempt RSS standards.
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference, includ-
ing interference that may cause undesired operation of the device.

SIENNA_OM_OM08007U_(U)
2754-5. Using the driving support systems
4
Driving
WARNING
■Before using dynamic radar cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your
vehicle and vehicles ahead by applying the brakes, etc.
■ Cautions regarding the driving assist systems
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
●Assisting the driver to measure following distance
The dynamic radar cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and a
designated vehicle travelling 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 conditions. It is still necessary for driver to pay close
attention to the vehicle’s surroundings.
● Assisting the driver to judge proper following distance
The dynamic radar cruise control determines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle travelling
ahead is appropriate or not. 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 has no capability to prevent or avoid a
collision with a vehicle travelling ahead. Therefore, if there is ever any
danger, the driver must take immediate and direct control of the vehicle
and act appropriately in order to ensure the safety of all involved.
■ To avoid inadvertent cr uise control activation
Switch the cruise control off using the “ON-OFF” button when not in use.

276
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
WARNING
■Situations unsuitable for dynamic radar cruise control
Do not use dynamic radar cruise control in any of the following 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, cyclers, 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 expressways
● When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, snow, sandstorm, heavy rain, etc.)
● When there is rain, snow, etc. on the front surface of the radar sensor or
camera sensor
● In traffic conditions that require frequent repeated acceleration and decel-
eration
● When an approach warning buzzer is heard often
● When your vehicle is towing a trailer

SIENNA_OM_OM08007U_(U)
2774-5. Using the driving support systems
4
Driving
WARNING
■When the sensor may not be correct ly detecting the vehicle ahead
In the case of the following and depending 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 correctly detect these types of vehicles,
the approach warning ( P. 271) may not be activated, which may lead to
an accident resulting in death or serious injury.
● 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.)
● Preceding vehicle has an extremely
high ground clearance

278
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
WARNING
■Conditions under which the vehicle-to-vehicle distance control may
not function correctly
In the case of the following conditions, operate the brake pedal (or acceler-
ator pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the sys-
tem may not operate properly.
●When the vehicle ahead of you decelerates suddenly
■ Handling the radar sensor
Observe the following to ensure the cruise control system can function
effectively:
Otherwise, the radar sensor may not detect correctly and could result in an
accident.
●Keep the sensor and grille cover clean at all times.
Clean the sensor and grille cover with a soft cloth so you do not mark or
damage them.
● Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may not work
normally or malfunction. If the sensor or surrounding area is subject to a
strong impact, always have the area inspected and adjusted by a Toyota
dealer.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor, grille cover or sur-
rounding area.
● Do not modify or paint the sensor and grille cover.
● If the sensor needs to be replaced, contact your Toyota dealer.
●When the road curves or when the
lanes are narrow
● When steering wheel operation or your
position in the lane is unstable

279
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
4
Driving
Intuitive parking assist
Front corner sensors
(if equipped)
Rear corner sensors
Rear center sensors
Turns the intuitive parking assist
on/off
When on, the indicator light comes
on and the buzzer sounds to inform
the driver that the system is opera-
tional.
: If equipped
The distance from your vehicle to nearby obstacles when paral-
lel parking or maneuvering into a garage is measured by the
sensors and communicated via the multi-information display,
the audio system screen and a buzzer. Always check the sur-
rounding area when using this system.
Types of sensors
1
2
3
Intuitive parking assist switch

280
SIENNA_OM_OM08007U_(U)
4-5. Using the driving support systems
When the sensors detect an obstacle, the following displays inform
the driver of the position an d distance to the obstacle.
■Multi-information display
Front corner sensor opera-
tion
Rear corner sensor operation
Rear center sensor operation
■Audio system screenIntuitive parking assist dis-
play
When the rear view monitor sys-
tem is not displayed.
A graphic is automatically dis-
played when an obstacle is
detected. The screen can be set
so that the graphic is not dis-
played. ( P. 283)
Insert display
When the rear view monitor sys-
tem is displayed.
A simplified image is displayed
on the right upper corner of the
audio system screen when an
obstacle is detected.
Display
1
2
3
1
2