2014 TOYOTA SIENNA air condition

718 4-3. Do-it-yourself maintenance
SIENNA_OM_OM45483U_(U)
*1: Vehicles with discharge headlights only
*2: Vehicles without discharge headlights only
*3: Vehicles without a smart key system only
*4: Vehicles with a smart key system only
FuseAmpereCircuit
40 INJ 25 A Multiport fuel injection system/
sequential multiport fuel injection
system, “IG NO.2” and “IG2” fuses
41 ECU-B NO.2 7.5 A Air conditioning system
42 AM2 NO.2
*47.5 A Multiplex communication system,
starting system
43 EFI NO.1 25 A Multiport fuel injection system/
sequential multiport fuel injection
system, “ECT” and “EFI NO.2”
fuses
44 SMART
*45 A Smart key system
45 DRL 30 A Daytime running light system, “H-
LP LH (HI)” and “H-LP RH (HI)”
fuses
46 EPS 60 A Electric power steering

721
4-3. Do-it-yourself maintenance
4
Maintenance and care
SIENNA_OM_OM45483U_(U)
FuseAmpereCircuit
16 PSD LH 25 A Power sliding door (left-side)
17 4WD 7.5 A Active Torque Control 4WD
18 AM1 10 A Starting system
19 GAUGE NO.2 7.5 A Gauges and meters, multi informa-
tion display
20 IG2 7.5 AAutomatic transaxle, multiport fuel
injection system/sequential multi-
port fuel injection system, SRS air-
bag system, front passenger
occupant classification system,
steering lock system, smart key
system, starting system, fuel pump
21 PANEL 10 AAir conditioning system, navigation
system, front passenger’s seat belt
reminder light, audio system, steer-
ing switch, intuitive parking assist
switch, personal/interior light main
switch, shift lever light, headlight
leveling switch, power door lock
main switch, clock, power quarter
window switch, seat heater switch,
emergency flashers, rear window
defogger switch, vehicle stability
control off switch, console box light,
power slide switch light

722 4-3. Do-it-yourself maintenance
SIENNA_OM_OM45483U_(U)
FuseAmpereCircuit
22 TAIL 10 A Tail lights, trailer lights (tail lights),
license plate light, rear combination
lights
23 WIP ECU 7.5 A Windshield wiper and rear window
wiper
24 P/VENT 15 A Power quarter windows
25 AFS 10 A Automatic High Beam
26 WIP 30 A Windshield wiper
27 WASHER 20 A Windshield washer
28 WIP RR 20 A Rear window wiper
29 WASHER RR 15 A Rear window washer
30 HTR-IG 10 A Air conditioning system
31 SHIFT LOCK 7.5 A Shift lock system, multiport fuel
injection system/sequential multi-
port fuel injection system
32 ECU-IG NO.2 10 A Pre-collision system, pre-collision
seat belt, dynamic radar cruise
control, electric power steering,
rain-sensing windshield wipers,
driving position memory system,
power sliding door, power third
seat, power back door, multiplex
communication system
33 PSD RH 25 A Power sliding door (right-side)
34 OBD 7.5 A On-board diagnosis system
35 S-HTR FL 15 A Seat heater (left-side)
36 S-HTR FR 15 A Seat heater (right-side)

790
5-2. Steps to take in an emergency
SIENNA_OM_OM45483U_(U)
If your vehicle overheats
Correction proceduresStop the vehicle in a safe place and turn off the air condition-
ing system, and then stop the engine.
If you see steam: Carefully lift the hood after the steam subsides.
If you do not see steam: Carefully lift the hood.
After the engine has cooled
down sufficiently, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
The following may indicate that your vehicle is overheating:
●The needle of the engine co olant temperature gauge (P. 246)
enters the red zone or a loss of engine power is experienced.
(For example, the vehicl e speed does not increase.)
● Steam is coming from under the hood.
STEP1
STEP2
STEP5STEP3

5
When trouble arises
791
5-2. Steps to take in an emergency
SIENNA_OM_OM45483U_(U)
The coolant level is satisfactory if
it is between the “FULL” and
“LOW” lines on the reservoir.
Reservoir
“FULL”
“LOW”
Radiator cap
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to
check that the radiator cooling fans operate and to check for
coolant leaks from the radiator or hoses.
The fans operate when the air conditioning system is turned on
immediately after a cold start. Conf irm that the fans are operating by
checking the fan sound and air flow. If it is difficult to check these,
turn the air conditioning system on and off repeatedly. (The fans may
not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Toyota
dealer.
If the fans are operating: Have the vehicle inspected at the nearest Toyota dealer.
STEP4
STEP5
STEP6
STEP7

821
6-1. Specifications
6
Vehicle specifications
SIENNA_OM_OM45483U_(U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressure The maximum cold inflated
pressure to which a
tire may be inflated, s hown on the sidewall of
the tire
Recommended infla-
tion pressure Cold tire inflation pressure recommended by a
manufacturer
Accessory weight The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

854
SIENNA_OM_OM45483U_(U)
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
2WD 2 Wheel Drive A/C Air Conditioning
ABS Anti-lock Brake System
ACC Accessory
AI-SHIFT Artificial Intelligence Shift control
ALR Automatic Locking Retractor
AVG Average
AWD All Wheel Drive
BSM Blind Spot MonitorCRS Child Restraint System
ECO Economy/Ecology
ECU Electronic Control Unit
EDR Event Data Recorder ELR Emergency Locking Retractor
EPS Electric Power Steering E/M English/U.S. customary system/Metric
GAWR Gross Axle Weight Rating
GCWR Gross Combination Weight Rating GVWR Gross Vehicle Weight Rating

856
SIENNA_OM_OM45483U_(U)
Alphabetical index
Alphabetical index
A/C ..................... 396, 404, 414, 417
ABS ........................................... 331
Active head restraint .................98
Active Torque Control 4WD system ........................... 332
Air conditioning filter............... 706
Air conditioning system Air conditioning filter .............. 706
Front automatic air
conditioning system ............ 404
Front manual air conditioning system ............ 396
Rear automatic air conditioning system ............ 417
Rear manual air
conditioning system ............ 414
Airbags Airbag operating
conditions............................ 175
Airbag precautions for your child ....................... 179
Airbag warning light............... 744
Curtain shield airbag operating conditions............ 175
Curtain shield airbag precautions ......................... 179
Front passenger occupant
classification system ........... 185
General airbag precautions ......................... 179
Locations of airbags .............. 170
Modification and disposal of airbags .............. 184
Proper driving posture ........................ 168, 179
Side and curtain shield
airbags operating
conditions............................ 175
Side and curtain shield
airbags precautions ............ 179
SRS airbags .......................... 170 Alarm......................................... 163
Antenna ............................ 434, 483
Anti-lock brake system ........... 331
Armrest ..................................... 616
Assist grips .............................. 618
Audio input ............................... 478
Audio system
A/V input port ........................ 532
Antenna................................. 434
Audio input ............................ 478
Audio visual input .................. 532
AUX port ............................... 478
CD player/changer ................ 438
DVD player.... 515, 525, 529, 530
iPod ....................................... 458
MP3/WMA disc ..................... 447
Optimal use ........................... 473
Portable music player ........... 478
Radio..................................... 428
Rear seat entertainment system ......... 504
Steering wheel audio switch.................................. 479
Type ...................................... 423
USB memory......................... 465
Audio visual input.................... 478
Automatic light control system .................................... 270
Automatic transaxle Automatic transaxle .............. 238
If the shift lever cannot be
shifted from P ..................... 778
S mode.................................. 240
Auxiliary box ........................... 601
AUX port ................................... 478
A/V input port ........................... 478A