suspension TOYOTA SIENNA 2001 Owners Manual

01 SIENNA_U (L/O0008)
732001 MY SIENNA (OM45406U)
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
front seat belt pretensioners in some
cases.
Installation of electronic devices
such as a mobile two−way radio,
cassette tape player or compact
disc player
Repairs on or near the front seat
belt pretensioner assemblies
Modification of the suspension sys-
tem
Modification of the front end struc-
ture
Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
Repairs made on or near the front
fenders, front end structure or con-
sole
This front seat belt pretensioner system
has a service reminder indicator to inform
the driver of operating problems. If any of
the following conditions occurs, this
indicates a malfunction of the airbags or
pretensioners. Contact your Toyota dealer
as soon as possible to service the
vehicle.
The light does not come on when the
ignition key is turned to the “ACC” or
“ON” position, or remains on.
The light comes on or flashes while
driving.
If either front seat belt does not retract
or cannot be pulled out due to a mal-
function or activation of the relevant
front seat belt pretensioner.
If the following cases, contact your Toyota
dealer as soon as possible:
The front part of the vehicle (shaded
in the illustration) was involved in an
accident that was not severe enough to
cause the front seat belt pretensioners
to operate.
Either front seat belt pretensioner as-
sembly or surrounding area is
scratched, cracked, or otherwise dam-
aged.
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01 SIENNA_U (L/O0008)
802001 MY SIENNA (OM45406U)
Do not modify or remove any wir-
ing. Do not modify, remove, strike
or open any components such as
the steering wheel pad, steering
wheel, column cover, front passen-
ger airbag cover, front passenger
airbag or airbag sensor assembly.
Doing any of these may cause sud-
den SRS front airbag inflation or
disable the system, which could re-
sult in death or serious injury.
Failure to follow these instructions
can result in death or serious injury.NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS front airbag system in some
cases.
Installation of electronic devices
such as a mobile two−way radio,
cassette tape player or compact
disc player
Modification of the suspension sys-
tem
Modification of the front end struc-
ture
Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag
This SRS front airbag system has a
service reminder indicator to inform the
driver of operating problems. If either of
the following conditions occurs, this
indicates a malfunction of the airbags.
Contact your Toyota dealer as soon as
possible to service the vehicle.
The light does not come on when the
ignition key is turned to the “ACC” or
“ON” position, or the light remains on.
The light comes on or flashes while
driving.
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01 SIENNA_U (L/O0008)
852001 MY SIENNA (OM45406U)
Do not attach a cup holder or any
other device or object on or around
the door. When the side airbag in-
flates, the cup holder or any other
device or object will be thrown with
great force or the side airbag may
not activate correctly, resulting in
death or serious injury. Likewise,
the driver and front passenger
should not hold things in their
arms or on their knees.
Do not use accessories for the
seats which cover the parts where
the side airbags inflate. Such acces-
sories may prevent the side airbags
from activating correctly, causing
death or serious injury.
Do not modify or replace the seats
or upholstery of the front seats
with the side airbags. Such changes
may disable the system or cause
the side airbags to inflate acciden-
tally, resulting in death or serious
injury. Consult your Toyota dealer if
you insist modifications of this
kind.
Failure to follow these instructions
can result in death or serious injury.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS side airbag system in some
cases.
Installation of electronic devices
such as a mobile two−way radio,
cassette tape player or compact
disc player
Modification of the suspension sys-
tem
Modification of the side structure of
the passenger compartment
Repairs made on or near the con-
sole or front seat
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01 SIENNA_U (L/O0008)
2212001 MY SIENNA (OM45406U)
INFORMATION BEFORE DRIVING YOUR
TOYOTA
Break−in period222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel222 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel pomp shut off system224 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation in foreign countries224 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three−way catalytic converter225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust cautions226 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Facts about engine oil consumption226 . . . . . . . . . . . . . . . . . . . . . . . . . .
Iridium−tipped spark plugs227 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system228 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators231 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Luggage stowage precautions231 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof luggage carrier232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Your Toyota’s identification233 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft prevention labels234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension and chassis234 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires235 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
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01 SIENNA_U (L/O0008)
2342001 MY SIENNA (OM45406U)
—Engine number
The engine number is stamped on the
engine block as shown.Your new vehicle carries theft preven-
tion labels which are approximately 56
mm (2.20 in.) by 16 mm (0.63 in.).
The purpose of these labels is to reduce
the incidence of vehicle thefts by facilitat-
ing the tracing and recovery of parts from
stolen vehicles. The label is designed so
that once it is applied to a surface, any
attempt to remove it will result in destroy-
ing the integrity of the label. Transferring
these labels intact from one part to anoth-
er, will be impossible.NOTICE
You should not attempt to remove the
theft prevention labels as it may vio-
late certain state or federal laws.
Suspension and chassis
CAUTION
Do not modify the suspension/chassis
with lift kits, spacers, springs, etc. It
can cause dangerous vehicle handling
characteristics, resulting in loss of
control.
Theft prevention labels
(except for Canada)
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01 SIENNA_U (L/O0008)
2442001 MY SIENNA (OM45406U)
TIRES
Ensure that your vehicle’s tires are
properly inflated. Adjust the tire pres-
sure to the recommended cold tire
pressure indicated below (see Section
7−2 for instructions.):
Tire pressure, kPa (kgf/cm
2 or bar, psi)
240 (2.4, 35)
The trailer tires should be inflated to
the pressure recommended by the trail-
er manufacturer in respect to the total
trailer weight.
TRAILER LIGHTS
Trailer lights must comply with federal,
state/provincial and local regulations.
See your local recreational vehicle
dealer or rental agency for the correct
type of wiring and relays for your trail-
er. Check for correct operation of the
turn signals and stop lights each time
you hitch up. Direct splicing may dam-
age your vehicle’s electrical system
and cause a malfunction of your lights.BREAK−IN SCHEDULE
Toyota recommends that you do not
tow a trailer with a new vehicle or a
vehicle with any new power train com-
ponent (engine, transmission, differen-
tial, wheel bearing, etc.) for the first
800 km (500 miles) of driving.
MAINTENANCE
If you tow a trailer, your vehicle will
require more frequent maintenance due
to the additional load. For this
information, please refer to the
scheduled maintenance information in
the “Scheduled Maintenance Guide” or
“Owner ’s Manual Supplement”.
Retighten all fixing bolts of the towing
ball and bracket after approximately
1000 km (600 miles) of trailer driving.
PRE−TOWING SAFETY CHECK
Check that your vehicle remains level
when a loaded or unloaded trailer is
hitched. Do not drive if the vehicle has
an abnormal nose−up or nose−down
condition, and check for improper
tongue load, overload, worn suspension
or other possible causes.
Make sure the trailer cargo is securely
loaded so that it cannot shift.
Check that your rear view mirrors con-
form to any applicable federal, state/
provincial or local regulations. If not,
install the rear view mirrors required
for towing purpose.
TRAILER TOWING TIPS
When towing a trailer, your vehicle will
handle differently than when not tow-
ing. The three main causes of vehicle−
trailer accidents are driver error, exces-
sive speed and improper trailer loading.
Keep these in mind when towing:
Before starting out, check operation of
the lights and all vehicle−trailer connec-
tions. After driving a short distance,
stop and recheck the lights and con-
nections. Before actually towing a trail-
er, practice turning, stopping and back-
ing with a trailer in an area away from
traffic until you learn the feel.
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01 SIENNA_U (L/O0008)
2792001 MY SIENNA (OM45406U)
Power steering fluid level
Check the level through the reservoir. The
level should be in the “HOT” or “COLD”
range depending on the fluid temperature.
See Section 7−2 for additional information.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See “Engine exhaust cautions” in
Section 2.)Be on the alert for changes in perfor-
mance, sounds, and visual tip−offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat−looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking
Engine coolant temperature continually
higher than normalIf you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?
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