598
SIENNA_OM_01999-08001_(U)
9-1. Specifications
Cooling system
Capacity
Without towing package
11.0 qt. (10.4 L, 9.2 Imp.qt.)
With towing package
11.7 qt. (11.1 L, 9.8 Imp.qt.)
Coolant type Use either of the following.
• “Toyota Super Long Life Coolant”
• A similar high-quality ethylene glycol-based non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
Ignition system
Spark plug
Make
Gap DENSO FK20HR11
0.043 in. (1.1 mm)
NOTICE
■
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust spark plug gap.
Electrical system
Battery
Open voltage* at
68 F (20 C): 12.6
12.8 V Fully charged
12.2 12.4 V Half charged
11 . 8 12.0 V Discharged
(
*: Voltage checked 20 minutes after the engine
and all the lights turned off)
Charging rates 5 A max.
644What to do if... (Troubleshooting)
SIENNA_OM_01999-08001_(U)
What to do if... (Troubleshooting)
●If you lose your keys or mechanical keys, new genuine keys or mechanical
keys can be made by your Toyota dealer. (P. 107)
●If you lose your keys or electronic keys, the risk of vehicle theft increases
significantly. Contact your Toyota dealer immediately. ( P. 109)
●Is the key battery weak or depleted? (P. 503)
●Vehicles with a smart key system
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 227)
●Vehicles with a smart key system
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. ( P. 107, 144)
●Is the child-protector lock set?
The sliding door cannot be opened from inside the vehicle when the lock is
set. Open the sliding door from outside and then unlock the child-protector
lock. (P. 125)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The sliding door cannot be opened
645What to do if... (Troubleshooting)
SIENNA_OM_01999-08001_(U)
●Is the shift lever in P? (P. 223)
●Is the steering wheel unlocked? ( P. 224)
●Is the battery discharged? (P. 583)
●Did you press the engine switch while firmly depressing the brake pedal?
(P. 226)
●Is the shift lever in P? ( P. 226)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 142)
●Is the steering wheel unlocked? ( P. 229)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( P. 581)
●Is the battery discharged? (P. 583)
●Is the engine switch in the “ON” position (vehicles without a smart key sys-
tem) or IGNITION ON mode (vehicles with a smart key system)?
If you cannot release the shift lever by depressing the brake
pedal with the engine switch in the “ON” position (vehicles without a smart
key system) or IGNITION ON mode (vehicles with a smart key system).
(P. 580)
If you think something is wrong
The engine does not start
(vehicles without a smart key system)
The engine does not start
(vehicles with a smart key system)
The shift lever cannot be shifted from P even if you depress
the brake pedal
646What to do if... (Troubleshooting)
SIENNA_OM_01999-08001_(U)
●Vehicles without a smart key system:
It is locked to prevent theft of the vehicle if the key is removed from the
engine switch. (P. 224)
●Vehicles with a smart key system:
It is locked automatically to prevent theft of the vehicle. ( P. 229)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. (P. 183)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not operating) for a period of
time. ( P. 228)
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The engine switch is tu rned off automatically
(vehicles with a smart key system)
647What to do if... (Troubleshooting)
SIENNA_OM_01999-08001_(U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P. 539)
●The brake system warning light is on
Is the parking brake released? (P. 236)
Depending on the situation, other types of warning buzzer may also sound.
( P. 537, 546)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 77)
To stop the alarm, turn the engine switch to the “ON” position (vehicles with-
out a smart key system) or IGNITION ON mode (vehicles with a smart key
system) or start the engine.
●Is the message displayed on the multi-information display?
Check the message on the multi-information display. ( P. 546)
A warning buzzer sounds during driving
An alarm is activated and the horn sounds (if equipped)
A warning buzzer sounds when leaving the vehicle
(vehicles with a smart key system)
653Alphabetical index
SIENNA_OM_01999-08001_(U)
Emergency, in case ofIf a warning buzzer
sounds ................................ 537
If a warning light turns on...... 537
If a warning message is displayed ............................ 546
If the battery is discharged.... 583
If the electronic key does not operate properly ........... 581
If the engine will not start ...... 578
If the shift lever cannot be shifted from P ..................... 580
If you have a flat tire .... 562, 564
If you lose your keys ............. 107
If you think something is wrong.................................. 535
If your vehicle becomes
stuck ................................... 590
If your vehicle has to be stopped in an emergency ... 529
If your vehicle needs to be towed .................................. 531
If your vehicle overheats ....... 587
Engine “ACC” position ...................... 223
Accessory mode ................... 227
Compartment ........................ 478
Engine switch................ 223, 226
Hood ..................................... 475
How to start the engine......................... 223, 226
Identification number ............ 595
If the engine will not start ...... 578
Ignition switch (engine switch) ........... 223, 226
Overheating .......................... 587 Engine coolant
Capacity................................ 598
Checking............................... 481
Preparing and checking before winter ...................... 311
Engine coolant temperature gauge ....................................... 88
Engine immobilizer system ...... 75
Engine oil
Capacity................................ 596
Checking............................... 479
Oil pressure warning light ..... 537
Oil pressure warning message............................. 553
Preparing and checking before winter ...................... 311
Engine switch .................. 223, 226
EPS (Electronic Power Steering)
Function ................................ 291
Warning light......................... 538
Warning message................. 549
Event data recorder (EDR)........ 10
*: Refer to “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”
655Alphabetical index
SIENNA_OM_01999-08001_(U)
Hands-free system (for cellular phone)
*............. 366
HDMI port
*
Head restraints ........................ 172
Headlights
Automatic High Beam system ......... ....................... 242
Discharge headlights
precautions ......................... 526
Light switch ........................... 237
Manual headlight leveling dial ...................................... 239
Replacing light bulbs..... 512, 514
Wattage ................................ 602
Heaters Front automatic air conditioning system ............ 404
Heated steering wheel .......... 416
Outside rear view mirrors...... 408
Rear automatic air conditioning system ............ 413
Seat heaters ......................... 416
Hill-start assist control............ 291
Hood ......................................... 475
Warning message ................. 548
Hooks Cargo .................................... 433
Grocery bag .......................... 443
Retaining hooks (floor mat)..... 24
Horn .......................................... 176 I/M test ...................................... 472
Identification
Engine .................................. 595
Vehicle .................................. 595
Ignition switch
(engine switch) .............. 223, 226
Illuminated entry system ........ 421
Indicators ................................... 82
Initialization Items to initialize ................... 628
Maintenance data ................. 467
Power back door................... 137
Power sliding door ................ 128
Tire pressure warning system .......... ...................... 489
Inside rear view mirror ............ 178
Interior lights ........................... 419 Wattage ................................ 602
Intuitive parking assist ........... 273 Function ................................ 273
Warning message................. 548
Jack Positioning a floor jack.......... 477
Vehicle-equipped jack .......... 565
Jack handle .............................. 567
Jam protection function
Moon roof ............................. 189
Power back door................... 137
Power sliding doors .............. 127
Power windows..................... 184
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