2003 TOYOTA TUNDRA fuel pressure

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2003 TUNDRA from Jul. ’03 Prod. (OM34430U)
Spark ignition system of your
To 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 multi-
port fuel injection system/sequential multiport fuel injection
system, electronic throttle control system, cruise control
system, anti −lock brake system, SRS airbag system and
seat belt pretensioner system, be sure to check with your
Toyota dealer for precautionary measures or special in-
structions regarding installation.
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 “Checking tire infla-
tion pressure” in Section 7−2 and “Vehicle load
limits” in Section 2.

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
1. Oil pressure gauge
2. Service reminder indicators and
indicator lights
3. Tachometer 4. Speedometer
5. Automatic transmission indicator lights
6. Voltmeter
7. Fuel gauge8. Trip meter reset knob
9. Odometer and two trip meters
10. Engine coolant temperature gauge
Instrument cluster overview
 With tachometer

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Driver’s 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
Overdrive −off indicator light
Turn signal indicator lights
Open door warning light∗
1
Passenger airbag off indicator light
Front passenger ’s seat belt reminder light∗1
Indicator symbols on the instrument panel

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
1. To open the fuel filler door, pull the
door toward out as shown.
When refueling, turn off the engine.
CAUTION
Do not smoke, cause sparks or al-
low open flames when refueling.
The fumes are flammable.
When opening the cap, do not re-
move the cap quickly. In hot weath-
er, fuel under pressure could cause
injury by spraying out of the filler
neck if the cap is suddenly re-
moved.
Do not fill a fuel container on a
plastic truck bed liner, a rubber
truck bed mat, or any other insulat-
ing material. A static electricity
charge could cause a spark and fire
hazard. The proper procedure is to
place an approved fuel container on
the ground away from the truck for
filling.
Ty p e A
Ty p e B
2. To remove the fuel tank cap, turnthe cap counterclockwise by 90 de-
grees (to the pressure point 1), and
then turn it an additional 30 degrees
(to point 2). Pause slightly before
removing it.
Although a click will be heard as you turn
the cap to point 1, it does not indicate
that the cap can be removed.
It is not unusual to hear a slight swoosh
when the cap is opened.
When installing the cap, turn the cap
clockwise until you hear one click.
When you hear the click, the cap is
fully closed.
If the cap is not tightened securely, the
malfunction indicator lamp comes on.
Make sure the cap is tightened securely.
The indicator lamp goes off after driving
several times. If the indicator lamp does
not go off, contact your Toyota dealer as
soon as possible.

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
CAUTION
Make sure the cap is tightened se-
curely to prevent fuel spillage in
case of an accident.
Use only a genuine Toyota fuel tank
cap for replacement. It is designed
to regulate fuel tank pressure.

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Gauges, Meters and Service reminder indicators
Fuel gauge 100
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . . .
Engine coolant temperature gauge 100
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil pressure gauge 101
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Vo ltme te r 102
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . .
Tachometer 102
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . .
Odometer and two trip meters 103
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service reminder indicators and warning buzzers 104
. . . . . . . . . . . . . .
SECTION 1 5

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
NOTICE
Do not drive the vehicle with the oil
pressure below the normal range until
the cause is fixed—it may ruin the
engine.
The voltmeter tells whether the battery
is charged or discharged. Check it
while the engine is running—the needle
should always indicate as shown above.
If the needle reads below or above the
normal range while the engine is running,
it indicates the charging system needs im-
mediate repair.
However, it is normal for the needle to
drop below the normal range during en-
gine starting.The tachometer indicates engine speed
in thousands of rpm (revolutions per
minute). Use it while driving to select
correct shift points and to prevent en-
gine lugging and overrevving.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get
into the red zone. This may cause
severe engine damage.
Voltmeter Tachometer

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
NOTICE
Do not continue driving if the engine
drive belt is broken or loose.
(e) Low Engine Oil Pressure Warning
Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop for
assistance.
The light may occasionally flicker when
the engine is idling or it may come on
briefly after a hard stop. There is no
cause for concern if it then goes out when
the engine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to
indicate low oil level, and the oil level
must be checked using the level dipstick.
NOTICE
Do not drive the vehicle with the
warning light on—even for one block.
It may ruin the engine.
(f) Malfunction Indicator Lamp
This lamp comes on when the ignition
key is turned to the “ON” position and
goes off after the engine starts. This
means that the warning light system is
operating properly.
If the lamp remains on, or the lamp
comes on while driving, first check the
followings.
Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.
Loose fuel tank cap
If the fuel tank cap is loose, securely
tighten it.
These cases are temporary malfunctions.
The malfunction indicator lamp will go off
after taking several driving trips.
If the lamp will not go off even after the
several trips, contact your Toyota dealer
as soon as possible. If the fuel tank is not empty or the fuel
tank cap is not loose...
There is a problem somewhere in the
engine, emission control system, elec-
tronic throttle control system, automatic
transmission electrical system or warn-
ing light system itself.
Contact your Toyota dealer as soon as
possible to service the vehicle.
5VZ− FE engine—
If the engine speed does not increase with
the accelerator pedal depressed down to
about the middle position, there may be
a problem somewhere in your electronic
throttle control system.
At this time, if you depress the accelera-
tor pedal more firmly and slowly, you can
drive your vehicle at low speeds. Have
your vehicle checked by your Toyota deal-
er as soon as possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the ignition key is turned to “ACC” or
“LOCK” position.