2023 TOYOTA SIENNA HYBRID parking sensors

3194-5. Using the driving support systems
4
Driving
rapidly.
■Buzzer operation and dis-
tance to an object
A buzzer sounds when the sen-
sors are operating.
 The buzzer beeps faster as
the vehicle approaches an
object. When the vehicle
comes within approximately
1.0 ft. (30 cm) of the object,
the buzzer sounds continu-
ously.
 When 2 or more sensors
simultaneously detect a static
object, the buzzer sounds for
the nearest object. If one or
more objects come within
approximately 1.0 ft. (30 cm)
of the vehicle, the buzzer will
repeat a long tone, followed
by fast beeps.
 Even when the sensors are
operating, the buzzer will be
muted in some situations.
(automatic buzzer mute func-
tion)
■Muting the buzzer sound
●Automatic buzzer mute function
Even when the sensors are operat-
ing, the buzzer will be muted in the
following situations:
• The distance betw een the vehicle
and the detected object does not
become shorter (except when the
distance between the vehicle and
object is 1.0 ft. [30 cm] or less).
• Your vehicle is moving away from the object.
• There are no detectable objects entering the path of your vehicle. However, if another object is
detected or the situation changes
while the buzzer
is muted, the
buzzer begins sounding again.
●To mute the buzzer sound
The buzzer can be temporarily
muted by pressing “OK” of the meter
control switches while a suggestion
that says mute is available is shown
on the multi-information display.
●When the mute is canceled
Mute will be automat ically canceled
in the following situations.
• When the shift position is changed
• When the vehicle speed has reached or exceeded a certain
speed
●When there is a malfunction in a
sensor or the system is temporar-
ily unavailable.
• When the Intuitive parking assist
is turned off on ce and turned on
again
• When the power switch is turned
off once and turned to ON again
■Customization
The buzzer volume can be adjusted
on the multi-information display.
(  P.549)

3254-5. Using the driving support systems
4
Driving
The Parking Support Brake can
be enabled/disabled on the
screen of the multi-information
display. All of the Parking Sup-
port Brake functions (static
objects and rear-crossing vehi-
cles) are enabled/disabled
simultaneously. (P.112)
When the Parking Support Brake is
disabled, the PKSB OFF indicator
( P.94) illuminates on the multi-
information display.
To re-enable the system, select
on the multi-information display,
select and turn it on.
If the system is disabled, it will
remain off even if the power switch
is turned to ON after the power
switch has been turned off.
WARNING
●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 additional trim
strip, etc.), bicycle carrier, or
snow plow.
●When using automatic car
washing devices.
●If the vehicle cannot be driven in
a stable manner, such as when
the vehicle has been in an acci-
dent or is malfunctioning.
●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.
●When your vehicle is towing a
trailer or during emergency tow-
ing.
NOTICE
■If “Parking Support Brake
Unavailable” is displayed on
the multi-information display
and the PKSB OFF indicator
illuminates
If this message is displayed
immediately after the power
switch is changed to ON, operate
the vehicle carefully, paying atten-
tion to your surroundings. It may
be necessary to drive the vehicle
for a certain amount of time
before the system returns to nor-
mal. (If the system does not return
to normal after dr iving for a while,
clean the sensors and their sur-
rounding area on the bumpers.)
Enabling/Disabling the
Parking Support Brake

3294-5. Using the driving support systems
4
Driving
*: If equipped
This function will operate in situations such as the following if an
object is detected in the traveling direction of the vehicle.
■When traveling at a low speed and the brake pedal is not
depressed, or is depressed late
Parking Support Brake fu nction (static objects)*
If the sensors detect a static object, such as a wall, in the t rav-
eling direction of the vehicle and the system determines that
a collision may occur due to the vehicle suddenly moving for-
ward due to an accidental accelerator pedal operation, the
vehicle moving the unintended direction due to the wrong
shift position being selected, or while parking or traveling at
low speeds, the system will operate to lessen the impact with
the detected static object and reduce the resulting damage.
Examples of function operation

3304-5. Using the driving support systems
■When the accelerator pedal is depressed excessively
■When the vehicle moves in the unintended direction due to
the wrong shift position being selected
 P.312
Types of sensors
WARNING
■To ensure the system can
operate properly
 P.314
■If the Parking Support Brake
function (static objects) oper-
ates unnecessarily, such as
at a railroad crossing
 P.327
■Notes when washing the vehi-
cle
 P.314

3324-5. Using the driving support systems
*: If equipped
This function will operate in situations such as the following if a vehi-
cle is detected in the traveling direction of the vehicle.
■When reversing, a vehicle is approaching and the brake pedal
is not depressed, or is depressed late
 P.304
■The Parking Support Brake
function (rear-crossing vehi-
cles) will operate when
The function will op erate when the
PKSB OFF indicator is not illumi-
nated ( P.93, 94) and a ll of the fol-
lowing conditions are met:
●Hybrid system output restriction
control
• The Parking Support Brake is
enabled.
• The vehicle speed is approxi-
Parking Support Brake function (rear-crossing
vehicles)*
If a rear radar sensor detects a vehicle approaching from the
right or left at the rear of the vehicle and the system deter-
mines that the possibility of a collision is high, this function
will perform brake control to reduce the likelihood of an
impact with the approaching vehicle.
Examples of function operation
Types of sensors
WARNING
■To ensure the system can
operate properly
 P.304

Alphabetical Index577
P
Panic mode ............................. 130
Parking assist sensors (intuitive parking assist) ...................... 312
Parking brake Operation ............................. 246
Parking brake engaged warning buzzer ................................ 248
Warning light ........................ 470
Warning message ................ 247
Parking lights Light switch .......................... 251
Replacing light bulbs ............ 448
Parking Support Brake (PKSB) ............................................... 324Indicator ................................. 94
Parking Support Brake function (rear-crossing vehicles) ...... 332
Parking Support Brake function (static objects) .................... 329
Warning light ........................ 468
PCS (Pre-Collision System) Enabling/disabling the pre-colli-sion system ........................ 272
Function ............................... 270
Warning light ........................ 467
Warning message ........ 268, 478
Personal lights ....................... 364 Switch................................... 364
Wattage ................................ 524
PKSB (Parking Support Brake) ............................................... 324Indicator ................................. 94
Parking Support Brake function (rear-crossing vehicles) ...... 332
Parking Support Brake function (static objects) .................... 329
Warning light ........................ 468
Power back door switch ........ 154
Power outlets .................. 374, 375
Power sliding door main switch ...............................................149
Power steering (Electric Power Steering system)...................336Warning light ........................466
Power switch...........................234 Auto power off fun ction.........238
Changing the power switch modes.................................237
Starting the hybrid system ....234
Power windows Door lock linked window opera-tion......................................203
Jam protection function ........202
Operation..............................202
Window lock switch ..............204
Pre-Collision System (PCS) Enabling/disabling the pre-colli-sion system ........................272
Function................................270
Warning light ........................467
Warning messag e ........268, 478
R
Radar cruise control
Dynamic radar cruise control with full-speed range ..........291
Radiator ...................................417
RCD (Rear Came ra Detection)
Function................................320
Warning message . ...............322
RCTA (Rear Cross Traffic Alert) RCTA Function .....................308
Warning message . ...............304
Rear automatic air conditioning system ...................................358
Rear Cross Traffic Alert (RCTA) ...............................................302
Rear heater system ................358
Rear passengers’ seat belt reminder light........................471
Rear seat .................................172 Adjustment ...........................172