2008 TOYOTA 4RUNNER tires

viii
Installation of a mobiletwo−way radio system
As the installation of a mobile two−way radio system in
your vehicle could affect electronic systems such as fol-
lows, be sure to check with your Toyota dealer for precau-
tionary measures or special instructions regarding installa-
tion.
Multiport fuel injection system/sequential multiport
fuel injection system
 SRS airbag system
 Seat belt pretensioner system
 Traction control system (two−wheel drive models)
 Active traction control system
(four−wheel drive models)
 AUTO LSD" system (two−wheel drive models)
 Vehicle stability control system
 Downhill assist control system
(four−wheel drive models)
 Hill−start assist control system
 Rear height control air suspension
Tire pressure warning system
 Cruise control system
 Anti−lock brake system
 Electronic throttle control system
Tires and loading on your
To y o t a
Underinflated or overinflated tire pressure and the
excess load may result in the deterioration of
steering ability and braking ability, leading to an
accident. Check the tire inflation pressure periodi-
cally and be sure to keep the load limits given in
this Owner ’s Manual. For details about tire inflation
pressure and load limits, see pages 441 and 364.

72
CY13293
The seat belt pretensioner system con-
sists mainly of the following components
and their locations are shown in the il-
lustration.1. Front airbag sensors
2. SRS warning light
3. Front passenger occupant classification indicator light
4. Front passenger occupant classification system (ECU and sensors)
5. Seat belt pretensioner assemblies
6. Front passenger ’s seat belt buckle switch
7. Airbag sensor assembly The seat belt pretensioners are controlled
by the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor.
When the seat belt pretensioners are acti-
vated, an operating noise may be heard
and a small amount of non−toxic gas may
be released. This does not indicate that
a fire is occurring. This gas is normally
harmless.
Once the seat belt pretensioners have
been activated, the seat belt retractors
remain locked.CAUTION
Do not modify, remove, strike or
open the seat belt pretensioner as-
semblies, airbag sensor or sur-
rounding area or wiring. Failure to
follow these instructions may pre-
vent the seat belt pretensioners
from activating correctly, cause sud-
den operation of the system or dis-
able the system, which could result
in death or serious injury. Consult
your Toyota dealer about any repair
and modification.
Do not modify or change the sus-
pension system. Such changes may
cause the curtain shield airbags to
inflate accidentally, which could re-
sult in death or serious injury. Con-
sult your Toyota dealer about any
repair and modification.
Do not use tires or wheels other
than the manufacture’s recom-
mended size. Such a use may cause
the curtain shield airbags and seat
belt pretensioners to inflate acci-
dentally, which could result in death
or serious injury. For details, see
Checking and replacing tires" on
page 443 in Section 7−2.
Do not place luggage heavier than
specified on the roof luggage carri-
er. Such luggage may cause the
curtain shield airbags and seat belt
pretensioners to inflate accidentally,
which could result in death or seri-
ous injury. For details, see Roof
luggage carrier" on page 334 in
Section 1−10.

84
CY13071
The curtain shield airbags may not acti-
vate if the vehicle is subjected to a
collision from the side at certain
angles, or a collision to the side of the
vehicle body other than the passenger
compartment as shown in the illustra-
tion.
The curtain shield airbags are designed to
inflate when the passenger compartment
area suffers a severe impact from the
side or vehicle rollover.
Always wear your seat belts properly.
CY13311
The angle of
vehicle tip−up
is marginalSkidding vehicle
hitting a curb
stone
The curtain shield airbags may inflate
if the angle of vehicle tip−up is margin-
al or if the skidding vehicle’s tires hit
a curb stone laterally as shown in the
illustration.
CY13229
Collision from
the front
Collision from
the rear
Pitch end over end
The curtain shield airbags are not gen-
erally designed to inflate if the vehicle
is involved in a front or rear collision,
if it pitches end over end, or if it is
involved in a low−speed side collision.

89
Do not hook a hanger, heavy or
sharp pointed objects on the coat
hook. If the curtain shield airbag
inflates, those items will be thrown
away with great force or the curtain
shield airbag may not activate cor-
rectly, resulting in death or serious
injury. When you hang clothes,
hang them on the coat hook direct-
ly.
Do not use seat accessories which
cover the parts where the side air-
bags inflate. Such accessories may
prevent the side airbags from acti-
vating correctly, causing death or
serious injury.
Do not modify or replace the seats
or upholstery of the seats with side
airbags. Such changes may prevent
the side airbag system from activat-
ing correctly, disable the system or
cause the side airbags to inflate ac-
cidentally, resulting in death or seri-
ous injury.
Do not disassemble or repair the
front pillars and roof side rail con-
taining the curtain shield airbags.
Such changes may disable the sys-
tem or cause the curtain shield air-
bags to inflate accidentally, result-
ing in death or serious injury.
Do not modify or change the sus-
pension system. Such changes may
cause the curtain shield airbags to
inflate accidentally, which could re-
sult in death or serious injury.
Do not use tires or wheels other
than the manufacturer’s recom-
mended size. Such a use may cause
the curtain shield airbags to inflate
accidentally, which could result in
death or serious injury. For details,
see Checking and replacing tires"
on page 443 in Section 7−2.
Do not place luggage heavier than
specified on the roof luggage carri-
er. Such luggage may cause the
curtain shield airbags to inflate ac-
cidentally, which could result in
death or serious injury. For details,
see Roof luggage carrier" on page
334 in Section 1−10.
Failure to follow these instructions
can result in death or serious injury.
Consult your Toyota dealer about any
repair and modification.
If you wish to modify your vehicle for
a person with physical disability, con-
sult your Toyota dealer. It may dan-
gerously interfere with the SRS side
airbags and curtain shield airbags op-
eration.
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 and curtain shield
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 side structure of
the passenger compartment
 Repairs made on or near the con-
sole or front seat

158
The SRS warning light will come on and
front passenger occupant classification in-
dicator light will indicate OFF" if there is
a malfunction in the front passenger occu-
pant classification system.
(m) Automatic Transmission FluidTemperature Warning Light
(four−wheel drive models)
This light warns that the automatic trans-
mission fluid temperature is too high.
If this light comes on while you are driv-
ing, slow down and pull off the road. Stop
the vehicle at a safe place and put the
selector lever in P". With the engine id-
ling, wait until the light goes off. If the
light goes off, you may start the vehicle
again. If the light does not go off, call a
Toyota dealer or qualified repair shop for
assistance.
NOTICE
Continued driving with the warning
light on may damage the automatic
transmission.
(n) Tire Pressure Warning Light
This light warns that the tire pressure of
one or more of your tires (including the
spare tire) is low. The light comes on
when the engine switch is turned to the
ON" position. It goes off after a few sec-
onds. This indicates that the tire pressure
warning system is functioning properly.
If the warning light comes on, stop your
vehicle in a safe place as soon as pos-
sible and check that the inflation pressure
of all tires (including the spare tire) is as
specified on the tire and loading informa-
tion label. (See Checking tire inflation
pressure" on page 441 in Section 7−2.)
The light should go off a few minutes after
the tire pressure is adjusted.
If the warning light comes on after blink-
ing for 1 minute, the tire pressure warning
system may be malfunctioning. Contact
your Toyota dealer.
For details, see Tire pressure warning
system" on page 197 in Section 1−7. (o) Low Windshield Washer Fluid Level
Warning Light (for vehicles sold in
Canada)
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see Adding washer fluid" on page 453 in
Section 7−3.)
(p) Key Reminder Buzzer
This buzzer acts as a reminder to remove
the key when you open the driver’s door
with the engine switch in the ACC" or
LOCK" position.
(q) Parking Brake Reminder Buzzer
The buzzer acts once when the parking
brake is not completely released at the
vehicle speed of 5 km/h (3 mph) or more.
Stop the vehicle and release the parking
brake fully.

175
If the 4LO" (low speed four−wheel drive)
indicator light continues to blink and the
buzzer sounds when you operate the mul-
ti−mode control switch knob to the H4" or
L4" position, drive forward or backward in
a short distance, then stop the vehicle
completely, shift the automatic transmis-
sion selector lever securely into N" and
operate the switch knob again.
If the indicator continues to blink even if
doing so, contact your Toyota dealer as
soon as possible. There may be a trouble
in the four−wheel drive system.
CAUTION
Never operate the multi−mode control
switch knob if the wheels are slip-
ping. Stop the slipping or spinning
before operating.
The traction control system automatical-
ly helps prevent the spinning of rear
wheels when the vehicle is started or
accelerated on slippery road surfaces.
When the engine switch is turned to ON",
the system automatically turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power to the rear wheels cannot be
maintained, even though the traction
control system is in operation. Do not
drive the vehicle under any speed or
maneuvering conditions which may
cause the vehicle to lose traction
control. In situations where the road
surface is covered with ice or snow,
your vehicle should be fitted with
snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the present road condi-
tions.
CY16073
NORMAL DRIVING MODE
Leave the system on during ordinary
driving so that it can operate when
needed.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the trac-
tion control system is in the self−check
mode, but does not indicate a malfunction.
When the traction control system is oper-
ating, the following conditions occur:
The system controls the spinning of the
rear wheels. At this time, the slip indi-
cator light blinks.
Traction control system
(two−wheel drive models)

178
The active traction control system auto-
matically helps prevent the spinning of
4 wheels when the vehicle is started or
accelerated on slippery road surfaces.
When the engine switch is turned to ON",
the system automatically turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power to the 4 wheels cannot be
maintained, even though the traction
control system is in operation. Do not
drive the vehicle under any speed or
maneuvering conditions which may
cause the vehicle to lose traction
control. In situations where the road
surface is covered with ice or snow,
your vehicle should be fitted with
snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the present road condi-
tions.
CY16073
NORMAL DRIVING MODE
Leave the system on during the ordi-
nary driving so that it can operate
when needed.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the ac-
tive traction control system is in the self−
check mode, but does not indicate a mal-
function.
When the active traction control system is
operating, the following conditions occur:
The system controls the spinning of the
4 wheels. At this time, the slip indica-
tor light blinks.
You may feel vibration or noise in your
vehicle, caused by operation of the
brakes. This indicates the system is
functioning properly.
The slip indicator light comes on for a few
seconds when the engine switch is turned
to ON". If the indicator light does not
come on when the engine switch is turned
on, contact your Toyota dealer.
The brake actuator temperature increases
during continuous operation of the active
traction control system, the vehicle stabil-
ity control system, the downhill assist con-
trol system and the hill−start assist control
system such as on sli ppery roads. If the
brake actuator temperature becomes too
high while any of the systems is operat-
ing, a buzzer will start to sound intermit-
tently to indicate that the active traction
control system can no longer operate. In
this case, immediately stop your vehicle at
a safe place.
If the system continues to operate, the
buzzer sound changes from intermittent to
continuous. (The continuous buzzer
sounds for about 3 seconds.)
Active traction control system
(four−wheel drive models)

183
The vehicle stability control system
helps provide integrated control of the
systems such as anti−lock brake sys-
tem, traction control, engine control,
etc. This system automatically controls
the output of the brakes or engine to
help prevent the vehicle from skidding
when cornering on a slippery road sur-
face or operating steering wheel abrupt-
ly.
The vehicle stability control system is acti-
vated when the vehicle speed is more
than 15 km/h (9 mph).
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the sys-
tem is in the self−check mode, but does
not indicate a malfunction.CAUTION
Do not rely excessively on the ve-
hicle stability control system. Even
if the system is operating, it cannot
completely eliminate the possibility
of an accident. Always keep safe
driving in mind, as reckless driving
increases the risk of an accident. If
the slip indicator light blinks, spe-
cial care should be taken while
driving.
Only use tires of specified size. The
size, manufacturer, brand and tread
pattern for all 4 tires should be the
same. If you use the tires other
than specified, or different type or
size, the vehicle stability control
system may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
Checking and replacing tires" on
page 443 in Section 7−2.)
CY16073
If the vehicle is going to skid during driv-
ing, the slip indicator light blinks and an
alarm sounds intermittently. Special care
should be taken while driving.
If the brake pedal is depressed while the
vehicle stability control system is active,
the brake pedal will become hard at an
earlier position than usual. However, the
brakes will respond to the pedal force if
depressed further.
The slip indicator light comes on for a few
seconds when the engine switch is turned
to ON". If the indicator light does not
come on when the engine switch is turned
on, contact your Toyota dealer.
Vehicle stability control
system