fuel consumption TOYOTA SIENNA HYBRID 2021 Owners Manual (in English)

1252-1. Instrument cluster
2
Vehicle status information and indicators
tery)
Tire
■Hybrid battery (traction battery)
status
The display changes in 8 levels
according to the remaining charge
amount of the hybrid battery (trac-
tion battery).
●The figure shows the multi-infor-
mation display as an example for
explanation.
●These images are examples only,
and may vary slight ly from actual
conditions.
Low
High
■Remaining charge amount
warning of hybrid battery (trac-
tion battery)
●The buzzer sounds intermittently
when the hybrid battery (traction
battery) remains without charging
while the shift leve r is in N, or the
remaining charge amount drops
below a certain level. If the
remaining charge amount drops
further, the buzzer sounds contin-
uously.
●When a warning message is
shown on the multi-information
display and the buzzer sounds,
follow the instructions displayed
on the screen to p erform trouble-
shooting.
■Trip information
Audio or Audio Plus (vehicles
without Data Communication
Module)
1 Press the “MENU” button.
2 Select “Info” on the “Menu”
screen.
If a screen other than “Trip Informa-
tion” is displayed, select “Trip Infor-
mation”.
Audio or Audio Plus (vehicles
with Data Communication
Module)/Premium Audio
1 Press the “MENU” button.
2 Select “Info” on the “Menu”
screen.
3 Select “ECO” on the “Infor-
mation” screen.
If a screen other than “Trip Informa-
tion” is displayed, select “Trip Infor-
mation”.
The image is an example only, and
may vary slightly from actual condi-
tions.
Fuel consumption in the past
15 minutes
Regenerated energy in the
past 15 minutes
C
A
B
Consumption
A
B

1262-1. Instrument cluster
One symbol indicates 50 Wh. Up to
5 symbols are shown.
Current fuel consumption
Resetting the consumption
data
Average vehicle speed since
the hybrid system was
started
Elapsed time since the hybrid
system was started
Cruising range (P.126)
Average fuel consumption for
the past 15 minutes is divided
by color into past averages and
averages attained since the
power switch was last turned to
ON. Use the displayed average
fuel consumption as a refer-
ence.
■History
Audio or Audio Plus (vehicles
without Data Communication
Module)
1 Press the “MENU” button.
2 Select “Info” on the “Menu”
screen.
If a screen other than “History” is
displayed, select “History”.
Audio or Audio Plus (vehicles
with Data Communication
Module)/Premium Audio
1 Press the “MENU” button.
2 Select “Info” on the “Menu”
screen.
3 Select “ECO” on the “Infor-
mation” screen.
If a screen other than “History” is
displayed, select “History”.
The image is an example only, and
may vary slightly from actual condi-
tions.
Best recorded fuel consump-
tion
Latest fuel consumption
Previous fuel consumption
record
• Audio and Audio Plus:
Displays the daily average fuel con-
sumption. (Instead of the date, “Trip
1” through “Trip 5” will be dis-
played.)
• Premium Audio:
Displays the daily average fuel con-
sumption.
Updating the latest fuel con-
sumption data
Resetting the history data
The average fuel consumption
history is divided by color into
past averages and the average
fuel consumption since the last
time updated. Use the displayed
average fuel consumption as a
reference.
C
D
E
F
G
A
B
C
D
E

1272-1. Instrument cluster
2
Vehicle status information and indicators
■Updating the history data
Update the latest fuel consumption
by selecting “Upda te” to measure
the current fuel consumption again.
■Resetting the data
The fuel consumption data can be
deleted by selecting “Clear”.
■Cruising range
Displays the estimated maximum
distance that can be driven with the
quantity of fuel remaining.
This distance is computed based on
your average fuel consumption. As
a result, the actual distance that can
be driven may differ from that dis-
played.

3414-6. Driving tips
4
Driving
4-6.Driving tips
When using Eco drive mode, the
torque corresponding to the
accelerator pedal depression
amount can be generated more
smoothly than it is in normal
conditions. In addition, the oper-
ation of the air conditioning sys-
tem (heating/cooling) will be
minimized, improving the fuel
economy. (P.333)
The Eco-friendly driving is pos-
sible by keeping the indicator of
Hybrid System Indicator within
Eco area. ( P.98, 102)
Shift the shift lever to D when
stopped at a traffic light, or driv-
ing in heavy traffic etc. Shift the
shift lever to P when parking.
When using the N position,
there is no positive effect on fuel
consumption. In the N position,
the gasoline engine operates but electricity cannot be gener-
ated. Also, when using the air
conditioning system, etc., the
hybrid battery (traction battery)
power is consumed.

Drive your vehicle smoothly.
Avoid abrupt acceleration and
deceleration. Gradual accel-
eration and deceleration will
make more effective use of
the electric motor (traction
motor) without having to use
gasoline engine power.
 Avoid repeated acceleration.
Repeated acceleration con-
sumes hybrid battery (trac-
tion battery) power, resulting
in poor fuel consumption. Bat-
tery power can be restored by
driving with the accelerator
pedal slightly released.
Make sure to operate the brakes
gently and in a timely manner. A
greater amount of electrical
energy can be regenerated
when slowing down.
Repeated acceleration and
deceleration, as well as long
waits at traffic lights, will lead to
bad fuel economy. Check traffic
Hybrid vehicle driving
tips
For economical and ecolog-
ical driving, pay attention to
the following points:
Using Eco drive mode
Use of Hybrid System
Indicator
Changing the shift posi-
tion
Accelerator pedal/brake
pedal operation
When braking
Delays

3424-6. Driving tips
reports before leaving and avoid
delays as much as possible.
When driving in a traffic jam,
gently release the brake pedal
to allow the vehicle to move for-
ward slightly while avoiding
overuse of the accelerator
pedal. Doing so can help control
excessive gasoline consump-
tion.
Control and maintain the vehicle
at a constant speed. Before
stopping at a toll booth or simi-
lar, allow plenty of time to
release the accelerator and gen-
tly apply the brakes. A greater
amount of electrical energy can
be regenerated when slowing
down.
Use the air conditioning only
when necessary. Doing so can
help reduce excessive gasoline
consumption.
In summer: When the ambient
temperature is high, use the
recirculated air mode. Doing so
will help to reduce the burden on
the air conditioning system and
reduce fuel consumption as
well.
In winter: Because the gasoline
engine will not automatically cut
out until it and the interior of the
vehicle are warm, it will con-sume fuel. Also, fuel consump-
tion can be improved by
avoiding overuse of the heater.
Make sure to check the tire infla-
tion pressure frequently.
Improper tire inflation pressure
can cause poor fuel economy.
Also, as snow tires can cause
large amounts of friction, their
use on dry roads can lead to
poor fuel economy. Use tires
that are appropriate for the sea-
son.
Carrying heavy luggage will lead
to poor fuel economy. Avoid car-
rying unnecessary luggage.
Installing a large roof rack will
also cause poor fuel economy.
Since the gasoline engine starts
up and cuts out automatically
when cold, warming up the
engine is unnecessary. More-
over, frequently driving short
distances will cause the engine
to repeatedly warm up, which
can lead to excess fuel con-
sumption.
Highway driving
Air conditioning
Checking tire inflation
pressure
Luggage
Warming up before driv-
ing

3505-1. Using the air conditioning system and defogger
switch.
■Defogging the rear window
and outside rear view mir-
rors (if equipped), and de-
icing windshield wipers (if
equipped)
Defoggers are used to defog the
rear window and to remove rain-
drops, dew and frost from the
outside rear view mirrors (if
equipped).
The windshield wiper de-icer is
used to prevent ice from building
up on the windshield and wiper
blades.
Press the rear window defog-
ger/outside rear view mirror
defoggers /windshield wiper de-
icer switch.
The defoggers and windshield
wiper de-icer will automatically turn
off after 15 minutes.
When the rear window defog-
ger/outside rear v iew mirror defog-
gers /windshield wiper de-icer
switch is on, the indicator illumi-
nates on the switch.
■Eco air conditioning mode
The air conditioning is controlled
with low fuel consumption priori-
tized such as reducing fan
speed, etc.
Select the eco air conditioning
mode switch on the control
screen. ( P.352)
When the eco air conditioning
mode is on, the indicator illumi-
nates on the eco air conditioning mode switch.
■Fogging up of the windows
●The windows will
easily fog up
when the humidity in the vehicle is
high. Turning “A/C” switch on will
dehumidify the air from the outlets
and defog the windshield effec-
tively.
●If you turn “A/C” switch off, the
windows may fog up more easily.
●The windows may fog up if the
recirculated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up
by the vehicle is still drawn into the
vehicle after closing the windows, it
is recommended that the air intake
mode be set to outside air mode
and the fan speed to any setting
except off.
■Outside/recirculated air mode
●Setting to the recirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
exceeds 75°F (24°C) and the air
conditioning system is on
●In order to reduce the air condi-
tioning power consumption, the air
conditioning system may switch to
recirculated air mode automati-
cally. This may also reduce fuel
consumption.
●Recirculated air mode is selected
as a default mode when the power
switch is turned to ON.
●It is possible to switch to outside
air mode at any time by pressing
the outside/recirculated air mode

3535-1. Using the air conditioning system and defogger
5
Interior features
system will blow ambient tempera-
ture air or heated air.
“SYNC” switch ( P.355)
Vehicles with “3-ZONE” mode: If
the indicator on the “SYNC” switch
is off, the temperature for the driver,
front passenger and rear seats can
be adjusted separately.
Vehicles with “4-ZONE” mode: The
temperature for the driver, front
passenger, left-hand side rear
seats and right-hand side rear
seats can be adjusted separately.
Set eco air conditioning
mode
The air conditioning is controlled
with low fuel consumption priori-
tized such as reducing fan speed,
etc.
■Option control screen
Select “Options” to display the
option control screen.
The functions can be switched on
and off.
When the function i s on, the indica-
tor illuminates on the screen.
“SYNC” switch ( P.355)
Vehicles with “3-ZONE” mode: If
the indicator on the “SYNC” switch
is off, the temperature for the driver,
passenger and rear seats can be adjusted separately.
Vehicles with “4-ZONE” mode: The
temperature for the driver, front
passenger, left-hand side rear
seats and right-hand side rear
seats can be adjusted separately.
Set cooling and dehumidifi-
cation function
If “A/C” switch is not pressed, the
system will blow ambient tempera-
ture air or heated air.
Set eco air conditioning
mode
The air conditioning is controlled
with low fuel con
sumption priori-
tized such as reducing fan speed,
etc.
1 Press the “AUTO” switch on
the air conditioning operation
panel or select the “AUTO”
switch on the control screen.
The dehumidification function
begins to operate. Air outlets and
fan speed are automatically
adjusted according to the tempera-
ture setting and humidity.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch on the air
conditioning operation panel
or select the “OFF” switch on
the control screen.
If the fan speed setting or air
flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
I
J
A
Using automatic mode
B
C

571Alphabetical Index
Alphabetical Index
A
A/C ................................... 348, 358Air conditioning filter ............. 441
Eco air conditioning mode .... 352
Front automatic air conditioning system ................................ 348
Front seat concentrated airflow mode (S-FLOW) ................. 354
Rear automatic air conditioning system ................................ 358
ABS (Anti-lock Brake System) ............................................... 335Function ............................... 335
Warning light ........................ 468
ACA (Active Cornering Assist) ............................................... 335
Acoustic Vehicle Alerting Sys- tem ........................................... 81
Active Cornering Assist (ACA) ............................................... 335
Airbags ...................................... 41 Airbag operating conditions.... 44
Airbag precautions for your child............................................. 46
Airbag warning light.............. 468
Correct driving posture ........... 33
Curtain shield airbag operating conditions ............................. 44
Curtain shield airbag precautions ............................................. 46
Front passenger occupant clas- sification system ................... 51
General airbag precautions .... 46
Locations of airbags ............... 41
Modification and disposal of air- bags ..................................... 49
Seat cushion airbag ............... 41
Side airbag operating conditions ............................................. 44
Side airbag precautions ......... 46
Side and curtain shield airbags operating conditions .............44
Side and curtain shield airbags precautions ...........................46
SRS airbags ...........................41
SRS warning light .................468
Air conditioning filter .............441
Air conditioning system.348, 358 Air conditioning filter .............441
Changing the rear seat settings...........................................356
Eco air conditioning mode ....352
Front automatic air conditioning system ................................348
Front seat concent rated airflow
mode (S-FLOW) .................354
Rear automatic air conditioning system ................................358
Alarm .........................................89 Alarm ......................................89
Warning buzzer .. ..................466
Anchor brackets ... ..............60, 71
Antenna (Smart key system) .164
Anti-lock brake system (ABS)335 Function................................335
Warning light ........................468
Approach warning ..................295
Armrest ......... ......................... ..386
Assist grips .............................386
Automatic air conditioning sys- tem .................................348, 358Air conditioning filter .............441
Eco air conditioning mode ....352
Automatic High Beam ............250
Automatic light control system ...............................................249
Average fuel consumption ....125
Average fuel economy ...........106
Average vehicle speed ...111, 125
B
Back door ................................150 Hands Free Power Back door

Alphabetical Index573
Coat hooks .............................. 388
Condenser .............................. 420
Console box ............................ 367
Consumption screen.............. 122
Conversation mirror ............... 370
CoolantChecking .............................. 419
Preparing and c hecking before
winter.................................. 343
Warning light ........................ 467
Cooling system ...................... 419 Hybrid system overheating... 511
Cruise control Dynamic radar cruise control with full-speed range .......... 288
Cup holders ............................ 368
Current fuel consumption ..... 125
Current fuel economy ............ 106
Curtain shield airbags ............. 41
Customizable features ........... 540
D
Daytime running light system248 Replacing light bulbs ............ 451
Defogger Outside rear view mirrors ..... 350
Rear window ........................ 350
Windshield............................ 349
Digital Rear-view Mirror ......... 188 Adjustment ........................... 190
Cleaning ............................... 193
Dinghy towing ........................ 230
Display BSM (Blind Spot Monitor)..... 300
Consumption screen ............ 122
Drive information .................. 111
Driving information ............... 106
Dynamic radar cruise control with full-speed range .......... 288
Energy monitor ..................... 122
Head-up display ................... 118
Intuitive parking assist .......... 308 LTA (Lane Traci
ng Assist) ....281
Multi-information display.......104
RCD (Rear Camera Detection) ...........................................315
RCTA ....................................300
Warning messages ...............477
Do-it-yourself maintenance..................407, 411
Door lock Back door .............................150
Front doors ...........................132
Sliding doors.........................137
Smart key system .................164
Wireless remote control........130
Doors Automatic door locking and unlocking system ................136
Back door .............................150
Door glasses ........................201
Door lock ..............................132
Front doors ...........................132
Open door warning buzzer ...136
Outside rear view mirrors .....198
Sliding door child-protectors .142
Sliding doors.........................137
Drive information ....................111
Driver’s seat belt reminder light ...............................................473
Drive-start control ..................209
Driving Break-in tips .........................209
Correct posture .......................33
Driving mode select switch ...333
Hybrid vehicle dri ving tips .....341
Procedures ...........................208
Winter drive tips....................343
Driving informatio n display ...106
Driving mode select switch ...333
Driving position memory .......178 Memory recall function .........180
Power easy access system ..178
Driving support system informa-

Alphabetical Index575
F
Flat tire ............................ 481, 491Tire pressure warning system........................................... 427
Floor mats ................................. 32
Fluid Brake ............................ 420, 524
Hybrid transmission.............. 523
Rear differential .................... 523
Washer ................................. 421
Fog lights Replacing light bulbs ............ 451
Switch................................... 254
Footwell lights ..... ................... 363
Front door courtesy lights Wattage ................................ 526
Front doors .......... ................... 132
Front passenger’s seat belt reminder light ....................... 473
Front passenger occupant clas- sification system .................... 51
Front seat heaters .................. 361
Front seats .............................. 169 Adjustment ........................... 169
Cleaning ............................... 403
Correct driving posture ........... 33
Driving position memory....... 178
Head restraints ..................... 182
Memory recall function ......... 180
Power easy access system .. 178
Seat heaters ......................... 361
Seat position memory .......... 178
Seat ventilators .................... 361
Front side marker lights ........ 248 Light switch .......................... 248
Replacing light bulbs ............ 451
Front turn signal lights Replacing light bulbs ............ 451
Turn signal lever................... 242
Fuel Capacity ............................... 520 Fuel gauge .....................97, 101
Information .........
..................528
Refueling ..............................259
Type .............................520, 528
Warning light ........................472
Fuel consumption information Average fuel consumption ....125
Current fuel consumption .....125
Fuel filler door.........................260 If the fuel filler door cannot be opened ...............................503
Refueling ..............................259
Fuel gauge.........................97, 101
Fuses .......................................449
G
Garage door opene r ...............392
Gauges ..............................97, 101
Glove box ................................367
Grocery bag hooks .................387
H
Headlights ...............................248 Automatic High Beam system...........................................250
Light switch...........................248
Replacing light bulbs ............451
Wattage ................................526
Head restraints .......................182
Head-up display ......................118 Driving information display area...........................................118
Driving support system display area ....................................120
Head-up display switch ........119
Hybrid System Indicator .......121
Navigation system-linked display ...........................................118
Pop-up display......................120
Settings ................................119
Head-up display switch..........119