back door TOYOTA SIENNA HYBRID 2023 Service Manual

2003-4. Adjusting the steering wheel and mirrors
vate in conjunction with the anti-
glare inside rear view mirror to
reduce reflected light.
■Automatic adjustment of the
mirror angle (vehicles with driv-
ing position memory)
A desired mirror f ace angle can be
entered to memory and recalled
automatically by the driving position
memory. ( P.179)
Manual type
Push the mirror back in the
direction of the vehicle’s rear.
Power type
Press the switch.
1 Folds the mirrors
2 Extends the mirrors
Putting the outside rear view mirror
folding switch in the neutral position
sets the mirrors to automatic mode. Automatic mode allows the folding
or extending of the mirrors to be
linked to locking/unlocking of the
doors.
■Using automatic mode in cold
weather (power type)
When automatic mode is used in
cold weather, the door mirror could
freeze up and automatic stowing
and return may not be possible. In
this case, remove any ice and snow
from the door mirror, then either
operate the mirror using manual
mode or move the mirror by hand.
■Customization
The automatic mirror folding and
extending operation can be
changed.
(Customizable features: P.545)
When the mirror select switch is
in the L or R position, the out-
side rear view mirrors will auto-
matically angle downwards
when the vehicle is reversing in
order to give a better view of the
ground.
To disable this function, move
the mirror select switch to the
neutral position (between L and
Folding and extending the
mirrors
WARNING
■When a mirror is moving
To avoid personal injury and mir-
ror malfunction, be careful not to
get your hand caught by the mov-
ing mirror.
Linked mirror function
when reversing (vehicles
with driving position
memory)

2154-1. Before driving
4
Driving
WARNING
●Do not leave a door or window
open if the curved glass is
coated with a metallized film
such as a silver-colored one.
Reflected sunlight may cause
the glass to act as a lens, caus-
ing a fire.
●Always apply the parking brake,
shift the shift lever to P, stop the
hybrid system and lock the vehi-
cle.
Do not leave the vehicle unat-
tended while the “READY” indi-
cator is illuminated.
If the vehicle is parked with the
shift lever in P but the parking
brake is not set, the vehicle may
start to move, possibly leading
to an accident.
●Do not touch the exhaust pipes
while the “READY” indicator is
illuminated or immediately after
turning the hybrid system off.
Doing so may cause burns.
■When taking a nap in the
vehicle
Always turn the hybrid system off.
Otherwise, if you accidentally
move the shift lever or depress
the accelerator pedal, this could
cause an accident or fire due to
hybrid system overheating. Addi-
tionally, if the vehicle is parked in
a poorly ventilated area, exhaust
gases may collect and enter the
vehicle, leading to death or a seri-
ous health hazard.
■When braking
●When the brakes a re wet, drive
more cautiously.
Braking distance increases
when the brakes are wet, and
this may cause one side of the
vehicle to brake differently than
the other side. Also, the parking
brake may not securely hold the
vehicle.
●If the electronically controlled
brake system does not operate,
do not follow other vehicles
closely and avoid hills or sharp
turns that require braking.
In this case, braking is still pos-
sible, but the brake pedal
should be depressed more
firmly than usual. Also, the brak-
ing distance will increase. Have
your brakes fixed immediately.
●The brake system consists of 2
or more individual hydraulic sys-
tems; if one of the systems fails,
the other will still operate. In this
case, the brake pedal should be
depressed more firmly than
usual and the braking distance
will increase. Have your brakes
fixed immediately.
■If the vehicle becomes stuck
(AWD models)
Do not spin the wheels exces-
sively when any of the tires is up
in the air, or the vehicle is stuck in
sand, mud, etc. This may damage
the driveline components or pro-
pel the vehicle forward or back-
ward, causing an accident.
NOTICE
■When driving the vehicle
●Do not depress the accelerator
and brake pedals at the same
time during driving, as this may
restrain the hybrid system out-
put.
●Do not use the accelerator
pedal or depress the accelera-
tor and brake pedals at the
same time to hold the vehicle on
a hill.

2524-3. Operating the lights and wipers
■Headlight control sensor
The sensor may not function prop-
erly if an object is placed on the sen-
sor, or anything that blocks the
sensor is affixed to the windshield.
Doing so interfere s with the sensor
detecting the level of ambient light
and may cause the automatic head-
light system to malfunction.
■Automatic light off system
●When the headlights are on: The
lights turn off 30 seconds after the
power switch is turned to ACC or
OFF and a door is opened and
closed. (The lights turn off imme-
diately if on the key is
pressed after all the doors are
closed.)
●When only the tail lights are on:
The tail lights turn off automati-
cally if the power switch is turned
to ACC or OFF and the driver’s
door is opened.
Except for Canada: To turn the
lights on again, turn the power
switch to ON, or turn the light switch
off once and the n back to or
position.
For Canada: To turn the lights on
again, turn the power switch to ON,
or turn the light s witch to once
and then back to or posi-
tion.
■Light reminder buzzer
A buzzer sounds when the power switch is turned to ACC or OFF and
the driver’s door is opened while the
lights are turned on.
■Windshield wiper linked head-
light illumination (if equipped)
When driving during daytime with
the headlight switch turned to , if
the windshield wipers are used, the
headlights will turn o n automatically
after several se conds to help
enhance the visibility of your vehi-
cle.
■12-volt battery-saving function
In order to prevent the 12-volt bat-
tery of the vehicle from discharging,
if the headlights and/or tail lights are
on when the power switch is turned
to OFF, the battery saving function
will operate and au tomatically turn
off all the lights af ter approximately
20 minutes.
When any of the following are per-
formed, the battery-saving function
is canceled once and then reacti-
vated. All the light s will turn off auto-
matically 20 minutes after the
battery-saving function has been
reactivated:
●When the headlight switch is oper-
ated
●When a door is opened or closed
■If “Headlight System Malfunc-
tion Visit Your Dealer” is dis-
played on the multi-information
display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Welcome light illumination con-
trol
The parking lights and tail lights
automatically turn on at night when
the doors are un locked using the
entry function or wireless remote
control if the light switch is in the

2614-3. Operating the lights and wipers
4
Driving
4 Washer/wiper dual
operation
Pushing the lever operates the
wiper and washer.
The wiper will automatically operate
a couple of times after the washer
squirts.
The washer will automatically oper-
ate and clean the camera for the
Digital Rear view Mirror
*1 (  P.194)
and rear camera
*2.
*1: If equipped
*2: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.
■The rear window wiper and
washer can be operated when
The power swit ch is in ON.
■If no washer fluid sprays
Check that the washer nozzle is not
blocked if there is washer fluid in the
washer fluid reservoir.
■Back door opening linked rear
window wiper stop function
When the rear w indow wiper is
operating, if the back door is opened
while the vehicle is stopped, opera-
tion of the rear window wiper will be
stopped to prevent anyone near the
vehicle from being sprayed by water
from the wiper. When the back door
is closed, wiper operation will
resume.
* *
: The setting must be customized at
your Toyota dealer.
■Reverse-linked rear window
wiper function
When the shift lever is shifted to R
when the front wipers are operating,
the rear window wiper will operate
once.
■Customization
Setting of the reverse-linked func-
tion can be changed. (Customizable
features: P.546)
NOTICE
■When the washer fluid tank is
empty
Do not operate the switch continu-
ally as the washer fluid pump may
overheat.
■When a nozzle becomes
blocked
In this case, contact your Toyota
dealer.
Do not try to clear it with a pin or
other object. The nozzle will be
damaged.
■To prevent 12-volt battery dis-
charge
Do not leave the wiper on longer
than necessary when the hybrid
system is off.

3204-5. Using the driving support systems
*: If equipped
Pedestrian detection icon
Displayed automatically when a
pedestrian is detected.
RCD OFF icon
When the RCD function is disabled,
the RCD OFF icon illuminates.
(Each time the power switch is
RCD (Rear Camera
Detection) function*
When the vehicle is back-
ing up, the rear camera
detection function can
detect pedestrians in the
detection area behind the
vehicle. If a pedestrian is
detected, a buzzer will
sound and an icon will be
displayed on the audio sys-
tem screen to inform the
driver of the pedestrian.
WARNING
■Cautions regarding the use of
the system
The recognition and control capa-
bilities for this system are limited.
The driver shoul d always drive
safely by always being responsi-
ble without over relying on the
system and have a understanding
of the surrounding situations.
■To ensure the system can
operate properly
Observe the follo wing, otherwise
there is the danger that could lead
to an accident.
●Always clean the camera with-
out damaging it.
●Do not install market electronic
parts (such as Illuminated
license plate, fog lamps, etc.) in
the camera vicinity.
●Do not subject the camera vicin-
ity to strong impacts. If the vicin-
ity is subjected to a strong
impact, have the vehicle
inspected by your Toyota
dealer.
●Do not disassemble, remodel or
paint the camera.
●Do not attach accessories or
stickers to the camera.
●Do not install market protection
parts (bumper tr im, etc.) to the
rear bumper.
●Maintain suitable tire air pres-
sure.
●Make sure the back door is
completely closed.
■RCD function i s turned off
In the following situations the sys-
tem turns off. The RCD function
may not operate properly and
thus there is the danger that an
accident may occur.
●The contents mentioned above
are not observed.
●Suspensions other than Toyota
genuine parts are installed.
Display (audio system
screen)
A
B

3945-4. Using the other interior features
Vehicles with Digital Rear-
view MirrorOpening
Closing
This function is onl y available if the
garage door opener motor used is a
compatible devic e. (To check
device compatibility, refer to
www.homelink.com.)
The indicators can operate
within approximately 820 ft. (250
m) of the garage door. However,
if there are obstructions
between the garage door and
the vehicle, such as houses and
trees, feedback signals from the
garage door may not be
received.
To recall the previous door oper-
ation status, press and release
either HomeLink
® buttons and or and (vehicles
with auto anti-glare inside rear
view mirror), and
or and (vehicles
with Digital Rear-view Mirror)
simultaneously. The last
recorded status will be dis-
played for 3 seconds.
Press and hold the 2 outside
buttons for 10 seconds until the
HomeLink
® indicator light
changes from continuously lit
(orange) to rapidly flashing
(green).
If you sell your vehicle, be sure to
erase the programs stored in the
HomeLink
® memory.
ColorStatus
Orange (flash- ing)Currently open-ing/closing
GreenOpening/closing has completed
Red (flashing)
Feedback sig-
nals cannot be received
A
B
Erasing the entire
HomeLink
® memory (all
three codes)

3966-1. Maintenance and care
6-1.Maintenance and care
Working from top to bottom,
liberally apply water to the
vehicle body, wheel wells and
underside of the vehicle to
remove any dirt and dust.
 Wash the vehicle body using
a sponge or soft cloth, such
as a chamois.
 For hard-to-remove marks,
use car wash soap and rinse
thoroughly with water.
 Wipe away any water.
 Wax the vehicle when the
waterproof coating deterio-
rates.
If water does not bead on a clean
surface, apply wax when the vehi-
cle body is cool.
■Automatic car washes
●Before washing the vehicle:
• Fold the mirrors
• Disable the powe r sliding door
system
• Disable the power back door sys- tem (if equipped)
Start washing from the front of the
vehicle. Make sure to extend the
mirrors before driving.
●Brushes used in automatic car
washes may scratch the vehicle
surface, parts (wheel, etc.) and
harm your vehicle’s paint.
●Rear spoiler may not be washable
in some automatic car washes.
There may also be an increased
risk of damage to vehicle.
■High pressure car washes
As water may enter the cabin, do
not bring the nozzle tip near the
gaps around the doors or perimeter
of the windows, or spray these
areas continuously.
■Note for a smart key system
If the door handle becomes wet
while the electronic key is within the
effective range, t he door may lock
and unlock repeatedly. In that case,
follow the following correction pro-
cedures to wash the vehicle:
●Place the key in a position 6 ft. (2
m) or more separate from the
vehicle while the vehicle is being
washed. (Take care to ensure that
the key is not stolen.)
●Set the electronic key to battery-
saving mode to disable the smart
key system. ( P.166)
●If the electronic key is inside the
vehicle and a door handle
becomes wet during a car wash, a
buzzer may sound outside the
vehicle and “Key Detected in
Vehicle” may be shown on the
multi-information d isplay. To turn
off the alarm, lock all the doors.
■Wheels and wheel ornaments
●Remove any dirt immediately by
using a neutral detergent.
●Wash detergent off with water
immediately after use.
●To protect the paint from damage,
make sure to obs erve the follow-
ing precautions.
• Do not use acidic, alkaline or
abrasive detergent
• Do not use hard brushes
• Do not use detergent on the
Cleaning a nd protect-
ing the vehicle exte-
rior
Perform the following to
protect the vehicle and
maintain it in prime condi-
tion:
Cleaning instructions

4486-3. Do-it-yourself maintenance
Check the wattage of the light
bulb to be replaced. ( P.524)
Rear turn signal lights
Back-up lights
License plate lights
■Lights that need to be
replaced by your Toyota
dealer
 Headlights 
Daytime running lights
 Front turn signal/parking
lights
 Front side marker lights
 Side turn signal lights
 Tail lights
 Stop lights
 Fog lights (if equipped)
 Rear side marker lights
 High mounted stoplight
 Outer foot lights (if equipped)
■LED lights
The lights other than the following
lights each consist of a number of
LEDs. If any of t he LEDs burn out,
take your vehicle to your Toyota
dealer to have the light replaced.
●Rear turn signal lights
●Back-up lights
●License plate lights
■Condensation build-up on the
inside of the lens
Temporary condensation build-up
on the inside of the light lens does
not indicate a mal function. Contact
your Toyota dealer for more infor-
mation in the following situations:
●Large drops of water have built up
on the inside of the lens.
●Water has built up inside the light.
■When replacing light bulbs
 P.447
■Rear turn signal lights
1 Open the back door.
Light bulbs
You may replace the follow-
ing bulbs by yourself. The
difficulty level of replace-
ment varies depending on
the bulb. If necessary bulb
replacement seems difficult
to perform, contact your
Toyota dealer.
For more information about
replacing other light bulbs,
contact your Toyota dealer.
Preparing for light bulb
replacement
Bulb location
A
B
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4506-3. Do-it-yourself maintenance
pletely secured.
8Reinstall the screws.
■Back-up lights
1 Open the back door and
remove the cover.
To prevent damag e to the cover,
wrap the tip of the screwdriver with
a rag, etc.
2 Turn the bulb base counter-
clockwise.
3 Remove the light bulb.
4 Install a new light bulb.
5 Install the bulb base to the
light unit by inserting it and

4807-2. Steps to take in an emergency
Stop the vehicle in a safe
place on a hard, flat surface.
 Set the parking brake.
 Shift the shift lever to P.
 Stop the hybrid system.
 Turn on the emergency flash-
ers. ( P.456)
 Disable the power sliding door
system. ( P.148)
 For vehicles with power back
door: Disable the power back
door system. ( P.163)
 Check the degree of the tire
damage.
A tire should only be repaired
with the emergency tire punc-
ture repair kit if the damage is
caused by a nail or screw pass-
ing through the tire tread.
• Do not remove the nail or screw from the tire. Removing
the object may widen the
If you have a flat tire
(vehicles without
spare tire)
Your vehicle is not
equipped with a spare tire,
but instead is equipped with
an emergency tire puncture
repair kit. A puncture
caused by a nail or screw
passing through the tire
tread can be repaired tem-
porarily using the emer-
gency tire puncture repair
kit. (The kit contains a bottle
of sealant. The sealant can
be used only once to tempo-
rarily repair one tire without
removing the nail or screw
from the tire.) Depending on
the damage condition of the
flat tire, it may not be able to
repaired with the emer-
gency tire puncture repair
kit. (
P.481)
After temporarily repairing
the tire with the kit, have the
tire repaired or replaced by
your Toyota dealer.
WARNING
■If you have a flat tire
Do not continue driving with a flat
tire.
Driving even a short distance with
a flat tire can damage the tire and
the wheel beyond repair, which
could result in an accident.
Driving with a flat tire may cause a
circumferential groove on the side
wall.
In such a case, the tire may
explode when using a repair kit.
Before repairing the vehi-
cle