engine overheat TOYOTA SIENNA 2009 XL20 / 2.G Owners Manual

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2
3
4
5
6
7
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Light bulbs........................... 486
5-1. Essential information ....... 496 If your vehicle needs to be towed ........................... 496
If you think something is wrong ............................ 500
Fuel pump shut off system .............................. 501
Event data recorder ............ 502
5-2. Steps to take in an emergency ....................... 504
If a warning light turns on or a warning buzzer
sounds... .......................... 504
If you have a flat tire (vehicles with
run-flat tires)...................... 515
If you have a flat tire (vehicles with
standard tires) ................... 516
If the engine will not start .... 529
If the shift lever cannot be shifted from P.................... 530
If you lose your keys/ wireless remote control
transmitter ......................... 531
If the battery is discharged ........................ 532
If your vehicle overheats ..... 536
If the vehicle becomes stuck ................................. 539 6-1. Specifications ................... 542
Maintenance data (fuel, oil level, etc.) ........... 542
Fuel information.................. 550
Tire information .................. 553
6-2. Customization................... 565 Customizable features........ 565
6-3. Initialization....................... 568 Items to initialize ................. 568
Reporting safety defects for U.S. owners ................ 570
Seat belt instructions for Canadian owners
(in French) ........................ 571
Abbreviation list ........................ 576
Alphabetical index .................... 578
What to do if... .......................... 589
5When trouble arises
6Vehicle specifications
7For owners
Index

161
2-1. Driving procedures
2
When driving
CAUTION
●
Do not drive the vehicle over or st op the vehicle near flammable materials.
The exhaust system and exhaust gases can be extremely hot. This may
cause a fire if there is any flammable material nearby.
● Do not let the vehicle roll backwards while the shift lever is in a driving
position, or roll forward while the shift lever is in R. Doing so may cause
the engine to stall or lead to poor brake and steering performance, result-
ing in an accident or damage to the vehicle.
● If the smell of exhaust is noticed inside the vehicle, open the windows and
check that the back door is closed. Large amounts of exhaust in the vehi-
cle can cause driver drowsiness and an accident, resulting in death or a
serious health hazard. Have the vehicle inspected by your Toyota dealer
immediately.
● Do not under any circumstances shift the shift lever to P or R while the
vehicle is moving. Doing so can cause significant damage to the transmis-
sion system and may result in a loss of vehicle control.
● Do not shift the shift lever to N while the vehicle is moving. Doing so may
cause insufficient engine braking and lead to an accident.
● Do not turn the engine off while driving. The power steering and brake
booster systems will not operate properly if the engine is not running.
● Use engine braking (downshift) to maintain a safe speed when driving
down a steep hill. Using the brakes continuously may cause the brakes to
overheat and lose effectiveness. ( P. 170)
● When stopped on an inclined surface, use the brake pedal and parking
brake to prevent the vehicle from rolling backward or forward and causing
an accident.
● Do not adjust the position of the steering wheel, the seat, or the inside or
outside rear view mirrors while driving. Doing so may result in a loss of
vehicle control that can cause accidents that may result in death or serious
injury.
● Always check that all passengers' arms, heads or other parts of their bod-
ies are not outside the vehicle, as this may result in death or serious injury.
● Do not drive the vehicle off-road.
This is not a AWD vehicle designed for real off-road driving. Proceed with
all due caution if it becomes unavoidable to drive off-road.

164 2-1. Driving procedures
CAUTION
■When taking a nap in the vehicle
Always turn the engine off. Otherwise, you may accidentally move the shift
lever or depress the accelerator pedal, which could cause an accident or fire
due to engine overheating. Additionally, if the vehicle is parked in a poorly
ventilated area, exhaust gases may collect and enter the vehicle, leadin\
g to
death or a serious health hazard.
■ When braking the vehicle
●When the brakes are wet, drive more cautiously.
Braking distance increases when the brakes are wet, and 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 power brake assist function does not operate, do not follow other
vehicles closely and avoid downhills or sharp turns that require braking.
In this case, braking is still possible, but it will require more force on the
pedal than usual. Braking distance may also increase.
● Do not pump the brake pedal if the engine stalls.
Each push on the brake pedal uses up the reserve for the power-assisted
brakes.
● The brake system consists of 2 individual hydraulic systems: 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 braking distance
becomes longer.
Do not drive your vehicle with only a single brake system. Have your
brakes fixed immediately.
■ If the vehicle becomes stu ck or bogged (AWD models)
Do not spin the wheels recklessly when any of the tires is up in the air, or
stuck in sand or mud, etc. This may damage the drive system components
or propel the vehicle forward (or in another direction) and cause an accident.

176 2-2. Instrument cluster and information display
Instrument panel light controlThe brightness of the instrument panel lights can be adjusted.
Darker
Brighter
Optitron type meters only:
When the headlight switch is
turned on, the brightness will
be reduced slightly unless the
control button is turned fully
clockwise.
NOTICE
■To prevent damage to the engine and its components
●Do not let the indicator needle of the tachometer enter the red zone, which
indicates the maximum engine speed.
● The engine may be overheating if the engine coolant temperature gauge is
in the red zone (H). In this case, immediately stop the vehicle in a safe
place, and check the engine after it has cooled completely. (
P. 536)

235
2-5. Driving information
2
When driving
●
Due to the added load of the trailer, your vehicle's engine may
overheat on hot days (at temperatures over 85°F [30°C]) when
driving up a long or steep grade. If the engine coolant temperature
gauge indicates overheating, immedi ately turn off the air condition-
ing (if in use), pull your vehicle off the road and stop in a safe spot.
(  P. 536)
● Always place wheel blocks under both the vehicle and the trailer
wheels when parking. Apply the parking brake firmly, and put the
transmission in P. Avoid parking on a slope, but if unavoidable, do
so only after performing the following:
Apply the brakes and keep them applied.
Have someone place wheel blocks under both the vehicle and
trailer wheels.
When the wheel blocks are in pl ace, release the brakes slowly
until the blocks absorb the load.
Apply the parking brake firmly.
Shift into P and turn off the engine.
● When restarting after parking on a slope:
With the transmission in P, start the engine. Be sure to keep
the brake pedal pressed.
Shift into a forward gear. If reversing, shift into R.
Release the parking brake and brake pedal, and slowly pull or
back away from the wheel blocks. Stop and apply the brakes.
Have someone retrieve the blocks.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP4

390
3-7. Other interior features
Seat heaters (if equipped)
■The seat heaters can be used when
The engine switch is in the “ON” position.
■ When not in use
Move the dial fully downward. The indicator light turns off.
CAUTION
■Burns
●Use caution when seating the following persons in a seat with the seat
heater on to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping
drugs, cold remedies, etc.)
● Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature
of the seat and may lead to overheating.
On
The indicator light comes on.
Adjusts the seat tempera-
ture
The further you move the dial
upward, the warmer the seat
becomes.
Front passenger’s seat
Driver’s seat

When trouble arises5
495
5-1. Essential information .... 496If your vehicle needs to be towed ........................ 496
If you think something is wrong ......................... 500
Fuel pump shut off system ........................... 501
Event data recorder ......... 502 5-2. Steps to take in an
emergency .................... 504
If a warning light turns on or a warning buzzer
sounds... ....................... 504
If you have a flat tire (vehicles with
run-flat tires)................... 515
If you have a flat tire (vehicles with
standard tires) ................ 516
If the engine will not start ................................ 529
If the shift lever cannot be shifted from P............ 530
If you lose your keys/ wireless remote control
transmitter ...................... 531
If the battery is discharged ..................... 532
If your vehicle overheats ....................... 536
If the vehicle becomes stuck .............................. 539

536
5-2. Steps to take in an emergency
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air condi-
tioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam
subsides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Check to see if the cooling fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating: Stop the engine and call your Toyota dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.STEP1
STEP2
STEP3
STEP5STEP4

5
When trouble arises
537
5-2. Steps to take in an emergency
■
Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of
power is experienced.
● Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of
your vehicle
●If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injury such as burns.
● Keep hands and clothing away from the fan and other belts while the
engine is running.
● Do not loosen the coolant reservoir cap while the engine and radiator are
hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is
unavailable.
(P. 546)
Have the vehicle chec ked at the nearest Toyota dealer as soon as
possible.
STEP5

580 Alphabetical index
CleaningExterior .................................. 418
Interior ................................... 421
Seat belts .............................. 422
Clock ......................................... 385
Coat hooks ............................... 396
Coin holder ............................... 369
Compass ................................... 413
Condenser ................................ 446
Console box ............................. 365
Conversation mirror ................386
Cooling system
Engine overheating ............... 536
Cornering assist sensors ........ 209
Cruise control
Cruise control ....................... 194
Dynamic laser cruise control ................................. 197
Cup holders .............................. 370
Curtain shield airbags ............. 117
Customizable features............. 565 Daytime running light
system .................................... 188
Defogger Rear window ......................... 260
Side mirrors........................... 260
Dimension ................................ 542
Dinghy towing .......................... 237
Display Dynamic laser cruise control ................................. 197
Trip information ..................... 181
Do-it-yourself maintenance .... 430
Door courtesy lights Door courtesy lights .............. 361
Wattage................................. 549
Doors Back door ................................ 47
Door glasses ........................... 99
Door lock ..................... 27, 33, 38
Front doors.............................. 33
Side mirrors............................. 96
Sliding doors ........................... 37
Driver's seat belt reminder
light ......................................... 507
Driving Break-in tips .......................... 159
Correct posture ..................... 115
Procedures............................ 158
Winter driving tips ................. 226
Driving position memory .......... 80
DVD player........ 303, 312, 315, 316D