TOYOTA SIENNA 2018 Owners Manual (in English)

461
SIENNA_OM_OM08019U_(U)
7When trouble arises
7-1. Essential informationEmergency flashers .......... 462
If your vehicle has to be stopped in an
emergency ...................... 463 7-2. Steps to take in an
emergency
If your vehicle needs to be towed ......................... 465
If you think something is wrong .............................. 469
Fuel pump shut off system ............................ 470
If a warning light turns on or a warning buzzer
sounds ............................ 471
If a warning message is displayed......................... 481
If you have a flat tire (vehicles with a compact
spare tire)........................ 485
If you have a flat tire (vehicles with
run-flat tires).................... 499
If the engine will not start ................................. 501
If the electronic key does not operate properly
(vehicles with a smart
key system)..................... 503
If the battery is discharged ...................... 505
If your vehicle overheats ........................ 509
If the vehicle becomes stuck ............................... 512

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SIENNA_OM_OM08019U_(U)
7-1. Essential information
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch
once again.
■Emergency flashers
If the emergency flashers are used for a long time while the en gine is not
operating, the battery may discharge.
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.

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7-1. Essential information
7
When trouble arises
If your vehicle has to be stopped in an emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase th e effort
required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehi cle in a safe place by the road.
Stop the engine.
If the shift lever cann ot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicl e
speed as much as possible.
Vehicles without a smart key
system: Stop the engine by
turning the engine switch to the
“ACC” position.
Vehicles with a smart key sys-
tem: To stop the engine, press
and hold the engine switch for 2
consecutive seconds or more,
or press it briefly 3 times or
more in succession.
Stop the vehicle in a s afe place by the road.
Only in an emergency, such as if it becomes impossible to stop
the vehicle in the normal way, st op the vehicle using the follow-
ing procedure:
1
2
3
4
3
4
Press and hold for 2 seconds or
more or press briefly 3 times or
more
R

4647-1. Essential information
SIENNA_OM_OM08019U_(U)
WARNING
■If the engine has to be tu rned off while driving
● Power assist for the brakes and steering wheel will be lost, ma king the
brake pedal harder to depress and the steering wheel heavier to turn.
Decelerate as much as possible before turning off the engine.
● Vehicles without a smart key system: Never attempt to remove the key, as
doing so will lock the steering wheel.

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7-2. Steps to take in an emergency
7
When trouble arises
If your vehicle needs to be towed
The following may indicate a problem with your transaxle. Contact
your Toyota dealer or commercial towing service before towing.
● The engine is running but t he vehicle does not move.
● The vehicle makes an abnormal sound.
Do not tow with a sling-type truck
to prevent body damage.
If towing is necessary, we recommend having your vehicle
towed by your Toyota dealer o r commercial towing service,
using a wheel-lift type t ruck or flat bed truck.
Use a safety chain system for all towing, and abide by all stat e/
provincial and local laws.
2WD models: If towing your vehic le with a wheel-lift type truck
from the front, the vehicle’s rear wheels and axles must be in
good conditions. ( P. 466, 467)
If they are damaged, use a to wing dolly or flat bed truck.
AWD models: If towing your vehicle with a wheel-lift type truck ,
use a towing dolly. ( P. 466, 467)
Situations when it is necessary to contact dealers before towing
Towing with a sling-type truck

4667-2. Steps to take in an emergency
SIENNA_OM_OM08019U_(U)
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be dam-
aged.
Towing with a wheel-lift type truck
From the front (2WD models)From the front (AWD models)
Release the parking brake. Use a towing dolly under the rear
wheels.
From the rear
Use a towing dolly under the front
wheels.
Using a flatbed truck

4677-2. Steps to take in an emergency
SIENNA_OM_OM08019U_(U)
7
When trouble arises
WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury.
■When towing the vehicle
■ While towing
Do not turn the engine switch to the “LOCK” position (vehicles without a
smart key system) or off (vehicles with a smart key system).
There is a possibility that the steering wheel is locked and ca nnot be oper-
ated.
2WD models: Be sure to transport the
vehicle with the front wheels raised or
with all four wheels raised off the ground.
If the vehicle is towed with the front
wheels contacting the ground, the drive-
train and related parts may be damaged.
AWD models: Be sure to transport the
vehicle with all four wheels raised off the
ground. If the vehicle is towed with the
tires contacting the ground, the drivetrain
or related parts may be damaged, the
vehicle may fly off the truck.

4687-2. Steps to take in an emergency
SIENNA_OM_OM08019U_(U)
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type
truck
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate cleara nce, the
vehicle could be damaged while being towed.
■ To prevent damage to the vehicle when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or re ar.
■ Recreational towing (behind motor home, etc.)
Never dinghy tow your vehicle to prevent
causing serious damage to the Active
Torque Control 4WD system (AWD mod-
els) and transaxle. ( P. 224)

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7-2. Steps to take in an emergency
7
When trouble arises
If you think something is wrong
●Fluid leaks un der the vehicle
(Water dripping from the air conditioning a fter use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points high er
than normal
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine missing, stumbling or running rough
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one s ide when driving on a level road
● Loss of brake effectiveness, spongy feeling, pedal almost touch es
the floor
If you notice any of the followi ng symptoms, your vehicle proba -
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

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7-2. Steps to take in an emergency
Fuel pump shut off system
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart key system
Turn the engine switch to the “ACC” or “LOCK” position.
Restart the engine.
Vehicles with a smart key system
Turn the engine switch to ACCESSORY mode or turn it off.
Restart the engine.
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops the supply of fuel to the engine.
NOTICE
■ Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked onto the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
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