2022 TOYOTA SIENNA HYBRID charging

5067-2. Steps to take in an emergency
recharge the 12-volt battery
of your vehicle.
6 Open and close any of the
doors of your vehicle with the
power switch OFF.
7 Maintain the engine speed of
the second vehicle and start
the hybrid system of your
vehicle by turning the power
switch to ON.
8 Make sure the “READY” indi-
cator comes on. If the indica-
tor light does not come on,
contact your Toyota dealer.
9 Once the hybrid system has
started, remove the jumper
cables in the exact reverse
order from which they were
connected.
10 Close the exclusive jump
starting terminal cover, and
reinstall the fuse box cover to
its original position.
Once the hybrid system starts,
have the vehicle inspected at
your Toyota dealer as soon as
possible.
■Starting the hybrid system
when the 12-volt battery is dis-
charged
The hybrid system cannot be
started by push-starting.
■To prevent 12-vol t battery dis-
charge
●Turn off the headlights and the
audio system while the hybrid sys-
tem is off.
●Turn off any unnec essary electri-
cal components when the vehicle is running at a low speed for an
extended period, such as in heavy
traffic.
■When the 12-volt battery is
removed or discharged
●Information stored in the ECU is
cleared. When the 12-volt battery
is depleted, have the vehicle
inspected at you
r Toyota dealer.
●Some systems may require initial-
ization. (P.551)
■When removing the 12-volt bat-
tery terminals
When the 12-volt battery terminals
are removed, the information stored
in the ECU is cleared. Before
removing the 12- volt battery termi-
nals, contact your Toyota dealer.
■Charging the 12-volt battery
The electricity stored in the 12-volt
battery will discha rge gradually even
when the vehicle i s not in use, due
to natural dischar ge and the drain-
ing effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the 12-volt battery may dis-
charge, and the hybrid system may
be unable to start. (The 12-volt bat-
tery recharges automatically while
the hybrid system is operating.)
■When recharging or replacing
the 12-volt battery
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the 12-
volt battery is discharged. Use the
wireless remote c ontrol or the
mechanical key to lock or unlock
the doors.
●The hybrid syste m may not start
on the first attemp t after reinstall-
ing the 12-volt battery. In that
case, start the hybrid system in
the same manner as when the
electronic key does not operate
properly ( P.503). This is not a
malfunction, as the hybrid system
will start normally on the second
attempt.

5087-2. Steps to take in an emergency
WARNING
●Do not allow the + and - clamps
of the jumper cables to come
into contact with each other.
●Do not smoke, use matches,
cigarette lighters or allow open
flame near the 12-volt battery.
■12-volt battery precautions
The 12-volt battery contains poi-
sonous and corrosi ve acidic elec-
trolyte, while related parts contain
lead and lead compounds.
Observe the following precautions
when handling the 12-volt battery:
●When working with the 12-volt
battery, always wear safety
glasses and take care not to
allow any battery fluids (acid) to
come into contact with skin,
clothing or the vehicle body.
●Do not lean over the 12-volt bat-
tery.
●In the event that battery fluid
comes into contact with the skin
or eyes, immediately wash the
affected area with water and
seek medical attention.
Place a wet sponge or cloth
over the affected area until
medical attention can be
received.
●Always wash your hands after
handling the 12-volt battery sup-
port, terminals, and other bat-
tery-related parts.
●Do not allow child ren near the
12-volt battery.
■After recharging the 12-volt
battery
Have the 12-volt battery
inspected at your Toyota dealer
as soon as possible.
If the 12-volt battery is deteriorat-
ing, continued use may cause the
12-volt battery to emit a malodor-
ous gas, which may be detrimen-
tal to the health of passengers.
■When replacing the 12-volt
battery
●For information regarding 12-
volt battery rep lacement, con-
tact your Toyota dealer.
●After exchanging, securely
attach the exhaust hose and
exhaust hole plug to the
exhaust hole of the exchanged
12-volt battery. If not properly
installed, gases (hydrogen) may
leak into the vehicle interior, and
there is the po ssible danger of
the gas igniting and exploding.
NOTICE
■When handling jumper cables
When connecting the jumper
cables, ensure that they do not
become entangled in the cooling
fan, etc.

5097-2. Steps to take in an emergency
7
When trouble arises
■If the engine coolant tem-
perature gauge enters the
red zone or “Engine Cool-
ant Temp High Stop in a
Safe Place See Owner’s
Manual” is shown on the
multi-information display
1 Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the hybrid system.
NOTICE
■To prevent damaging the
vehicle
The exclusive jump starting termi-
nal is to be used when charging
the 12-volt battery from another
vehicle in an emergency. It cannot
be used to jump start another
vehicle.
If your vehicle over-
heats
The following may indicate
that your vehicle is over-
heating.
 The needle of the engine
coolant temperature gauge
( P.97, 101) enters the red
zone, or a loss of hybrid
system power is experi-
enced. (For example, the
vehicle speed does not
increase.)
 “Engine Coolant Temp High
Stop in a Safe Place See
Owner’s Manual” or “Hybrid
System Overheated Output
Power Reduced” is shown
on the multi-information dis-
play.
 Steam comes out from
under the hood.
Correction procedures

5218-1. Specifications
8
Vehicle specifications
*: The fluid capacity is the quantity of reference.If replacement is necessary, contact y our Toyota dealer.
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact y our Toyota dealer.
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system (12-volt Battery)
Open voltage at 68°F (20°C):
12.0 V or higher
(Turn the power switch to OFF and turn on
the high beam headlights for 30 seconds.)
If the voltage is lower than the standard
value, charge the battery.
Charging rates5 A max.
Hybrid transmission
Fluid capacity*4.6 qt. (4.4 L, 3.9 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or ultimately damage the transmission of yo ur vehicle.
Rear differential (rear electric motor) (AWD models)
Fluid capacity*1.8 qt. (1.7 L, 1.5 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or ultimately damage the transmission of yo ur vehicle.

Alphabetical Index581
Tire inflation pressure display function............................... 424
Tire pressure warning system ........................................... 424
Uniform Tire Quality Grading 531
Warning light ........................ 470
Tools .............. .................. 481, 490
Top tether strap ... ..................... 71
Total load capacity ......... 217, 220
Towing Dinghy towing....................... 232
Towing eyelet ....................... 490
Trailer sway control .............. 335
Trailer towing................ 221, 222
Toyota Safety Sense .............. 264 AHB (Automatic High Beam) 252
Dynamic radar cruise control with full-speed range .......... 290
LTA (Lane Tracing Assist).... 277
PCS (Pre-Collision System) . 269
RSA (Road Sign Assist) ....... 287
TRAC (Traction Control) ........ 335
Traction battery (Hybrid battery) ................................................. 83Hybrid battery (traction battery) air intake vents ..................... 85
Location.................................. 83
Specification ......................... 518
Warning messages ................ 86
Traction Control (TRAC) ........ 335
Traction motor (e lectric motor)79
Trailer sway control ............... 335
Trailer towing .................. 221, 222
Transmission Driving mode select switch... 333
Hybrid transmission.............. 240
Trip meters ....... ................. 97, 101
Turn signal lights Replacing light bulbs ............ 448
Turn signal lever................... 244U
USB charging ports ................379
V
Vanity lightsVanity lights ..........................374
Wattage ................................524
Vanity mirrors .........................374
Vehicle data recordings .............7
Vehicle identification number517
Vehicle Stability Control (VSC) ...............................................335
Ventilators (seat ventilators) .361
VSC (Vehicle Stab ility Control)
...............................................335
W
Warning buzzers Approach warning ................297
Brake hold ............................469
Brake Override System ........469
Brake system ........................464
Downshifting .........................243
Drive-Start Control ................469
Electric power steering .........466
High coolant temperature .....465
Hybrid system overheat ........465
Intuitive parking assist OFF indi- cator ...................................467
Intuitive parking assist ..........311
Low engine oil pressure .......465
LTA (Lane Traci ng Assist) ....277
LTA indicator ........................467
Open door ............................136
Open hood............................136
Open window........................203
PKSB OFF indicator .............468
Pre-collision warn ing ............269
RCD OFF indicator ...............468
RCTA (Rear Cross Traffic Alert)

582Alphabetical Index
........................................... 302
RCTA OFF indicator............. 468
Seat belt reminder ................ 471
Vehicle sway warning........... 281
Warning lights ABS ...................................... 466
Brake hold operated indicator........................................... 469
Brake Override System ........ 469
Brake system ....................... 464
Charging system .................. 464
Drive-Start Control ............... 469
Electric power steering ......... 466
Engine .................................. 465
High coolant temperature ..... 465
Hybrid system overheat ....... 465
Intuitive parking assist OFF indi- cator ................................... 467
Low engine oil pressure ....... 465
Low fuel level ....................... 470
LTA indicator ........................ 467
Malfunction indicator lamp ... 465
Parking brake indicator ........ 470
PCS warning light................. 467
PKSB (Parking Support Brake) ........................................... 469
PKSB OFF indicato r ............. 468
RCD OFF indicator............... 468
RCTA OFF indicator............. 468
Seat belt reminder light ........ 471
Slip indicator......................... 469
SRS ...................................... 466
Tire pressure ........................ 470
Warning messages ................ 475
Washer Checking .............................. 418
Low washer fluid warning mes-sage ........................... 418, 475
Preparing and c hecking before
winter.................................. 343
Switch........................... 256, 259
Washing and waxing .............. 396 Weights
Cargo capacity .............217, 220
Load limits ............................220
Wheels .....................................437 Replacing wheels .................437
Size ......................................523
Window glasses Power windows ....................202
Window lock switch ...............204
Windows Power windows ....................202
Rear window defogger .........350
Washer .........................256, 259
Windshield defogge r ..............349
Windshield wiper d e-icer .......353
Windshield wipers Intermittent windshield wipers...........................................256
Position.........................256, 259
Rain-sensing windshield wipers ...........................................256
Winter driving tips ..................343
Wireless charger.....................381
Wireless remote control.........130 Battery-saving function .........166
Locking/Unlocking ................130
Panic mode ..........................130
Replacing the battery ...........444
For vehicles with Entune Audio, Entune Audio Plus
or Entune Premium Audio,
refer to the “NAVIGA-
TION AND MULTIMEDIA
SYSTEM OWNER’S MAN-
UAL” for information
regarding the equipment
listed below.
· Navigation system