2008 TOYOTA TUNDRA traction control

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
Traction control system
 “AUTO LSD” system
 Vehicle stability control system
 Cruise control system
 Anti −lock brake system
 Electronic throttle control system
 Tire pressure warning systemTires and loading on your
To y o t a
Underinflated or overinflated tire inflation 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
periodically and be sure to keep the load limits
given in this Owner ’s Manual. For details about
tire inflation pressure and load limits, see
“Checking tire inflation pressure” on page 553 in
Section 7 −2 and “Vehicle load limits” on page 469
in Section 2.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road conditions. If the light comes on,
replace it as soon as possible.
The system must be reset after the
engine oil replacement. Reset the system
by the following procedure:
1. Turn the engine switch to the “OFF” position with the trip meter A reading
shown. (For details, see “Odometer and
two trip meters” on page 186 in this
Section.)
2. Turn the engine switch to the “ON” position while holding down the trip
meter reset knob.
Hold down the knob for at least 5
seconds. The trip meter A indicates
“000000” and the light goes off.
If the system fails to reset, the light will
continue flashing.
(h) Low Fuel Level Warning Light
This light comes on when the fuel level
in the tank becomes nearly empty. Fill up
the tank as soon as possible.
On inclines or curves, due to the move-
ment of fuel in the tank, the low fuel level
warning light may come on earlier than
usual. (i) “ABS” Warning Light
The light comes on when the engine
switch is turned to the “ON” position. If
the anti
−lock brake system and the brake
assist system work properly, the light
turns off after a few seconds. Thereafter,
if either of the systems malfunctions, the
light comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
following systems do not operate, but the
brake system still operates conventionally.
Anti −lock brake system
Brake assist system
Traction control system
“AUTO LSD” system
Vehicle stability control system
When the “ABS” warning light is on (and
the brake system warning light is off), the
anti −lock brake system does not operate,
so that the wheels will lock up during a
sudden braking or braking on slippery
road surfaces.
If either of the following conditions oc-
curs, this indicates a malfunction some-
where in the components monitored by
the warning light system. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on when the
engine switch is turned to the “ON”
position, or remains on.
The light comes on while you are dri-
ving.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the “ABS” warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
(j) “VSC OFF” and slip indicator lights
The “VSC OFF” indicator light flashes and
the slip indicator light comes on to warn
that there is a problem somewhere in the
following:
Vehicle stability control system
Traction control system
“AUTO LSD” system
The lights come on when the engine
switch is turned to the “ON” position, and
will go off after a few seconds.
If the “VSC OFF” indicator light flashes
and the slip indicator lights comes on dur-
ing driving, the above mentioned systems
will not work. However, if the brakes oper-
ate normally when applied, it is not a
problem to continue driving.
In the following cases, contact your Toyota
dealer:
The “VSC OFF” and slip indicator lights
do not come on after the engine switch
is turned to the “ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light remains on
after the engine switch is turned to the
“ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
while driving.
(k) Open Door Warning Light and buzz- er
This light remains on until all the doors
are completely closed.
The buzzer also sounds once when any
of the doors is not completely closed at
the vehicle speed 5 km/h (3 mph) or
more. Stop the vehicle and close all the
doors completely.
(l) SRS Warning Light
This light will come on when the engine
switch is turned to the “ON” position.
After about 6 seconds, the light will go
off. This means the systems of the air-
bag and front seat belt pretensioners
are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system
∗, passenger airbag
off switch, passenger airbag on −off indica-
tor light, seat belt pretensioner assem-
blies, inflators, “RSCA OFF” indicator light,
interconnecting wiring and power sources.
∗: The front passenger occupant classifica-
tion system includes the front passenger
occupant classification ECU, load sensor
and front passenger ’s seat belt buckle
switch.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle.
The light does not come on when the
engine switch is turned to the “ON”
position or remains on for more than
6 seconds.
The light comes on while driving.
(m) Tire Pressure Warning Light
This light warns that the tire inflation pres-
sure of one or more of your tires (except
for the temporary spare tire) is low. The
light comes on when the engine switch is
turned to the “ON” position. It goes off
after a few seconds. This indicates that
the tire pressure warning system is func-
tioning properly.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Engine (ignition) switch, Transmission and Parking
brake
Engine (ignition) switch 210
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Automatic transmission 211
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.
Four −wheel drive system 240
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Traction control system 243
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. .
”AUTO LSD” system 246
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
Vehicle stability control system 250
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 254
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Parking brake 261
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. . . . . . . . . .
Cruise control 262
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. . . . . . . . . .
SECTION 1 7

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
To turn off: Push “TOW/HAUL” switch
once again and the “TOW/HAUL” mode
indicator light goes off.
“TOW/HAUL” mode is canceled by press-
ing “TOW/HAUL” switch again or by turn-
ing the engine switch to “OFF”.
Even when “TOW/HAUL” mode is used
during normal driving, no damage is
caused to the engine or the transmission.
However, fuel economy is reduced and the
transmission and/or engine driving charac-
teristics may feel unusual.
Toyota recommends using “TOW/HAUL”
mode only when a heavy trailer or a large
heavy load is towed.
XS17003b
Use the front drive control switch knob
to select the following transfer modes.
“2WD” (high speed position, twowheel
drive): Front drive control switch knob at
“2WD”
Use this for normal driving on dry hard −
surfaced roads. This position gives greater
economy, quietest ride, least wear and
better vehicle control.
“4H” (high speed position, fourwheel
drive): Front drive control switch knob at
“4H”
The “4HI” (high speed four −wheel drive)
indicator light comes on when the “4H”
mode is selected.
Use this for greater traction than two −
wheel drive. (When you experience a loss
of power, such as wheel spinning.) This
position provides greater traction than
two −wheel drive.
In this mode, the vehicle stability control
system is off. (See “Vehicle stability
control system” on page 250 in this
Section.)
“4L” (low speed position, fourwheel
drive): Front drive control switch knob at
“4L”
Fourwheel drive system
(a) Front drive control

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The “4LO” (low speed four−wheel drive)
indicator light comes on when the “4L”
mode is selected.
Use this for maximum power and traction.
Use “4L” position for climbing or descend-
ing steep hills, off −road driving, and hard
pulling in sand, mud or deep snow.
See “(c) Shifting procedure” for further in-
structions.
In this mode, the vehicle stability control
system is off. (See “Vehicle stability
control system” on page 250 in this
Section.) The A.D.D. can be engaged or disen-
gaged by the shifting operations de-
scribed in “(c) Shifting procedure”.
You should drive in four
−wheel drive for
at least 16 km (10 miles) each month.
This will assure that the front drive com-
ponents are lubricated. SHIFTING BETWEEN “2WD” AND “4H”
To shift from “2WD” to “4H”,
reduce the
vehicle speed to less than 100 km/h (62
mph) and turn the front drive control
switch knob fully clockwise.
When the ambient temperature is −15 C
(5.0 F) or lower, shifting must be per-
formed with the vehicle speed below 70
km/h (43 mph).
If the “4HI” (high speed four −wheel drive)
indicator light continues to blink when you
operate the front drive control switch knob
from the “2WD” to the “4H” position, this
reminds you that the transfer mode is not
securely in “4H” mode. Drive straight
ahead while accelerating or decelerating.
If the “4HI” (high speed four −wheel drive)
indicator light continues to blink and the
buzzer sounds when you operate the front
drive control switch knob from the “2WD”
to the “4H” position, this reminds you that
the transfer mode is not in “4H” mode.
Stop the vehicle or reduce the vehicle
speed to less than 100 km/h (62 mph).
(When the ambient temperature is −15 C
(5.0 F) or lower, speed needs to be re-
duced to below 70 km/h (43 mph).) Oper-
ate the switch knob again.
(b) A.D.D. (automatic
disconnecting differential) (c) Shifting procedure

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
If there is any malfunction in the brake
system or the engine, “4HI” or “4LO” indi-
cator light blinks and the transfer mode
may not be able to be shifted from “4H”
to “4L”.
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. The traction control system automatical-
ly helps prevent the spinning of the
rear wheels (twowheel drive models)
or 4 wheels (fourwheel drive models)
when the vehicle is started or acceler-
ated on slippery road surfaces.
When the engine switch is turned to the
“ON” position, the system automatically
turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power to the rear wheels (twowheel
drive models) or 4 wheels (fourwheel
drive models) cannot be maintained,
even though the traction control sys-
tem is in operation. Do not drive the
vehicle at any speed or in maneuver-
ing conditions which may cause the
vehicle to lose traction control. In si-
tuations where the road surface is
covered with ice or snow, your ve-
hicle should be fitted with snow tires
or tire chains. Always drive at an ap-
propriate and cautious speed for the
present road conditions.
XS17004a
Ty p e A
XS17005a
Ty p e B
Traction control system

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
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 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 (two −wheel drive models)
or 4 wheels (four −wheel drive models).
At this time, the slip indicator 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 the “ON” position. 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 follow-
ing systems under conditions such as on
slippery roads.
Traction control system
“AUTO LSD” system
If the brake actuator temperature becomes
too high while any of the systems is oper-
ating, a buzzer will start to sound intermit-
tently to indicate that the traction control
system can no l onger 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.)
At this time, the slip indicator light comes
on and the traction control system tempo-
rarily stops operating in order to protect
the brake actuator. (Although the traction
control system does not operate, it is not
a problem to continue driving.) The sys-
tem is automatically restored after a short
time and the slip indicator light goes off.XS17010a
and only one of the rear wheels be-
gins to spin,which also may the rear
wheels.TRACTION CONTROL OFF MODE
(twowheel drive mode only)
When getting the vehicle out of mud or
snow, etc., and only one of the rear
wheels begins to spin, it may be benefi-
cial to turn off the traction control sys-
tem. This system which also controls
engine performance may interfere with
the process of freeing the rear wheels.