traction control TOYOTA TACOMA 2004 Owners Manual (in English)

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2004 TACOMA from Sep. ’03 Prod. (OM35814U)
Spark ignition system of yourTo y o t a
The spark ignition system in your Toyota meets all require-
ments of the Canadian Interference −Causing Equipment
Standard.
Installation of a mobile twoway 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
 “AUTO LSD” system
 Vehicle stability control system
 Cruise control system
 Anti −lock brake system
 Electronic throttle control system

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Seat belt reminder light∗1
Low engine oil pressure warning light∗1
Low fuel level warning light∗1
Brake system warning light∗1
Discharge warning light∗1
Malfunction indicator lamp∗1
Anti −lock brake system warning light∗
1
SRS warning light∗1
or
Automatic transmission fluid temperature
warning light∗1
Unengaged “Park” warning light∗1
Low windshield washer fluid level warning
light∗1
Headlight high beam indicator light
Traction control system warning light∗1
“AUTO LSD” system warning light∗1
Vehicle stability control system warning
light∗1
Turn signal indicator lights
Indicator symbols on the instrument panel

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(f) 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.
(g) “ABS” Warning Light (without ve-hicle stability control system)
The light comes on when the ignition key
is turned to the “ON” position. If the anti −
lock brake system works properly, the
light turns off after a few seconds. There-
after, if the system malfunctions, the light
comes on again.
When the “ABS” warning light is on (and
the brake system warning light is off), the
anti −lock brake system does not operate,
but the brake system still operates con-
ventionally.
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 could lock up during
a sudden braking or braking on slippery
road surfaces. 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
ignition key is turned to the “ON” posi-
tion, or the light remains on.
The light comes on while you are driv-
ing.
A warning light turning on briefly during
operation does not indicate a problem.
With rear differential lock: However, it is
a normal operation for the light to be on
with rear differential locked. At this time,
the anti −lock brake system does not oper-
ate.
“ABS” Warning Light (with vehicle
stability control system)
The light comes on when the ignition key
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
ignition key is turned to the “ON” posi-
tion, 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.

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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.
Either of the following conditions may
occur, but do not indicate a malfunc-
tion:
The light may stay on for about 60
seconds after the ignition key is turned
to the “ON” position. It is normal if it
turns off after a while.
Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
turns off after a few seconds.(h) “VSC TRAC” Warning Light
The light warns that there is a problem
somewhere in the following.
Traction control system
“AUTO LSD” system
Vehicle stability control system
The light will come on when the ignition
key turned to “ON”, and will go off after
a few seconds.
It is not a malfunction that the warning
light may stay on for 60 seconds after the
ignition key is turned to the “ON” position.
Depressing the brake pedal repeatedly
may turn on the lights. It is normal if they
go out after a few seconds.
There is no problem when the “VSC
TRAC” warning light comes on when the
brake actuator temperature becomes high.
If the light comes on while driving, the
above mentioned systems do not work.
However, as conventional braking operates
when applied, there is no problem to con-
tinue your driving. In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.
(i) SRS Warning Light
This light will come on when the igni-
tion key is turned to the “ON” position.
After about 6 seconds, the light will go
off. This means the system 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, front seat belt pretensioner assem-
blies, inflators, warning light, interconnect-
ing wiring and power sources.

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OPERATION OF INSTRUMENTS AND
CONTROLS
Ignition switch, Transmission and Parking brake
Ignition switch with steering lock132
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission 133
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
Manual transmission 138
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
Four −wheel drive system 140
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Traction control system 144
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
”AUTO LSD” system 146
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
Vehicle stability control system 148
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear differential lock system 150
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 152
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Cruise control 153
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Clutch start cancel switch 155
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
SECTION 1 7

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Use the front drive control lever to se-
lect the following transfer modes.
“H2” (high speed position, twowheel
drive): Lever at “H2”
Use this for normal driving on dry hard −
surfaced roads. This position gives greater
economy, quietest ride and least wear.
“H4” (high speed position, fourwheel
drive): Lever at “H4”
Use this for normal driving on wet, icy or
snow −covered roads. This position pro-
vides greater traction than two− wheel
drive. “N” (neutral position): Lever at “N”
No power is delivered to the wheels. The
vehicle must be stopped.
“L4” (low speed position, fourwheel
drive):
Lever at “L4”
Use this for maximum power and traction.
Use “L4” for climbing or descending steep
hills, off −road driving, and hard pulling in
sand, mud or deep snow.
The four −wheel drive indicator light comes
on when the “H4”, “N” or “L4” mode is
selected.
See “(c) Shifting procedure (lever type)”
for further instructions.Use the front drive control lever and
“4WD” button to select the following
transfer modes.
“H2” (high speed position, twowheel
drive): Lever at “H”, “4WD” button left out
Use this for normal driving on dry hard −
surfaced roads. This position gives greater
economy, quietest ride and least wear.
“H4” (high speed position, fourwheel
drive): Lever at “H”, “4WD” button pushed
in
Use this for normal driving on wet, icy or
snow −covered roads. This position pro-
vides greater traction than two− wheel
drive.
Fourwheel drive system—
(a) Front drive control
(lever type) (a) Front drive control
(lever/button type)

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“N” (neutral position): Lever at “N”
No power is delivered to the wheels. The
vehicle must be stopped.
“L4” (low speed position, fourwheel
drive): Lever at “L4”
Use this for maximum power and traction.
Use “L4” for climbing or descending steep
hills, off −road driving, and hard pulling in
sand, mud or deep snow.
The four −wheel drive indicator light comes
on when the “H4”, “N” or “L4” mode is
selected.
See “(c) Shifting procedure (lever/button
type)” for further instructions. 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 “H2” AND “H4”
To shift from “H2” to “H4”,
reduce your
speed to less than 80 km/h (50 mph) and
move the front drive control lever. You
need not depress the clutch pedal.
If you have trouble shifting in cold weath-
er, reduce your speed or stop the vehicle
and reshift.
CAUTION
Never move the front drive control
lever if wheels are slipping. Stop the
slipping or spinning before shifting.
To shift from “H4” to “H2”, simply move
the front drive control lever.
This can be done at any vehicle speed.
You need not depress the clutch pedal.
If the indicator light does not go off when
you shift the transfer into “H2”, drive
straight ahead while accelerating or decel-
erating, or drive in reverse.
(b) A.D.D. (automatic
disconnecting differential) (c) Shifting procedure (lever
type with manual transmission)

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The traction control system automatical-
ly helps prevent the spinning of rear
wheels (twowheel drive models) or 4
wheels (fourwheel drive models) when
the vehicle is started or accelerated on
slippery road surfaces.
When the ignition key 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 (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 under any speed or 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.
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 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 (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 ignition key is turned
to “ON”. If the indicator light does not
come on when the ignition is turned on,
contact your Toyota dealer.
Traction control system

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“VSC TRAC” warning light
This light warns that there is a problem
somewhere in the following.
Traction control system
Vehicle stability control system
“AUTO LSD” system
When the system is normal and the igni-
tion key is turned to “ON”, the warning
light will come on and will go off after a
few seconds.
It is not a malfunction that the warning
light may stay on for 60 seconds after the
ignition key is turned to “ON”. Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
goes out after a few seconds.
The brake actuator temperature increases
during continuous operation of the above
mentioned systems such as on slippery
roads. If the brake actuator temperature
becomes too high while any of the sys-
tems is operating, a buzzer will start to
sound intermittently to indicate that the
traction control system can no longer op-
erate. 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 the time, the “VSC TRAC” warning light
will come on and the traction control sys-
tem temporarily stops operating in order to
protect the brake actuator. (Although the
traction control system does not operate,
it is no problem to continue driving.) The
system will be automatically restored after
a short time and the “VSC TRAC” warning
light goes off.
If the light comes on while driving, the
traction control system does not work.
However, as the brakes operate normally
when applied, it is no problem to continue
your driving.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.

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The “AUTO LSD” system aids traction
by using the traction control system to
control engine performance and braking
when one of the rear wheels begins to
spin.
This system is used only when wheel
spinning occurs in a ditch or on a slip-
pery or rough surface.
This system is effective in case one of
the rear wheels is spinning.
CAUTION
Do not use the “AUTO LSD” system
in conditions other than the above. A
much greater steering effort and more
careful cornering control will be re-
quired.
To activate the system, push the “AUTO
LSD” switch under the following condi-
tion. At this time, the “AUTO LSD” indi-
cator light will come on.
The driving mode is set in the two−
wheel drive mode (In the four −wheel
drive mode, the system does not
work.)
Driving at a speed under 100 km/h (62
mph)
To cancel the system, push the “AUTO
LSD” switch once again. However, can-
cellation of the system cannot be done
while the traction control system and
“AUTO LSD” system are in operation.
“AUTO LSD” system