service indicator TOYOTA TUNDRA 2003 1.G User Guide

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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.

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CAUTION
Be especially careful to prevent erro-
neous pedal operation.
2UZ−FE engine—
If the engine speed does not increase with
the accelerator pedal depressed down,
there may be a problem somewhere in
your electronic throttle control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle
checked by your Toyota dealer 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.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
Emissions Inspection and Maintenance
(I/M) programs
Your vehicle may not pass a state
emission inspection if the malfunction
indicator lamp remains on. Contact your
Toyota dealer to check your vehicle’s
emission control system and OBD
(On −Board Diagnostics) system before
taking your vehicle for the inspection.
For details, see “Emissions Inspection and
Maintenance (I/M) programs” in Section 6.
(g) 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. (h) “ABS” Warning Light
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 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 the light remains on.
The light comes on while you are driv-
ing.

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CHECKING SERVICE REMINDER
INDICATORS (except the low fuel level
warning light and low windshield
washer fluid level warning light)
1. Apply the parking brake.
2. Open one of the doors. The open door warning light should
come on.
3. Close the door. The open door warning light should go
off.
4. Turn the ignition key to “ACC”. The SRS warning light should come on.
It goes off after about 6 seconds.
5. Turn the ignition key to “ON”, but do not start the engine.
All the service reminder indicators ex-
cept the open door warning light and
SRS warning light should come on. The
“ABS” warning light goes off after a
few seconds.
If any service reminder indicator or warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.

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5. Windshield—Air flows mainly from the
windshield vents.
Turning the air flow selector to the
windshield position turns on the defog-
ging function with the purpose of clear-
ing the front view.
This position allows the air intake to
select FRESH automatically. This is to
clean up the front view more quickly.
It is recommended that you close the
lower vent. For details about this, see
“Instrument panel vents” in this section.
Vehicles with “A/C” button—
Press the “A/C” button for dehumidified
heating or cooling. This setting clears
the front view more quickly.
For details about air flow selector settings,
see “Air flow selector settings” described
below. Air intake selector
The air intake selector button is used to
switch the air intake
FRESH mode that
draws outside air into the system and
RECIRCULATED mode that recirculates
the air inside vehicle.
To turn the air source to RECIRCULATED
mode, press the button. The indicator will
come on. To turn the air source to FRESH
mode, press the button again. The indica-
tor will go off.
To prevent fogging up of the windshield,
the air intake mode may change automati-
cally to FRESH depending on the condi-
tion of the air conditioning system.
“A/C” button
To turn on the air conditioning, press the
“A/C” button. The “A/C” button indicator
will come on. To turn the air conditioning
off, press the button again.
Vehicles with 2UZ −FE engine—If the “A/C”
button indicator flashes, there is a prob-
lem in the air conditioning system and the
air conditioning automatically shuts off. If
this happens, take your vehicle to a
Toyota dealer for service.

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Power steering fluid level (2UZFE en-
gine)
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.)
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Be alert for changes in steering condition,
such as hard steering or strange noise. Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straints move up and down smoothly and
that the locks hold securely in any latched
position. For folding
−down seatback
(bench seat), check that the latches lock
securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.
Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Clutch pedal
Check the pedal for smooth operation.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
At a safe place, check that the brakes do
not pull to one side when applied. Parking brake (pedal type)
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Parking brake (lever type)
Check that the lever has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission “Park” mecha-
nism
On a safe incline, check that your vehicle
is held securely with the selector lever in
“P” position and all brakes released.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.

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Some states have vehicle emission in-
spection programs which include OBD
(On−Board Diagnostics) che cks.
The OBD system monitors the operation
of the emission control system. When the
OBD system determines that a problem
exists somewhere in the emission control
system, the malfunction indicator lamp
comes on. In this case, your vehicle may
not pass the I/M test and need to be
repaired. Contact your Toyota dealer to
service the vehicle.
Even if the malfunction indicator lamp
does not come on, your vehicle may not
pass the I/M test as readiness codes
have not been set in the OBD system.
Readiness codes are automatically set
during ordinary driving. However, when the
battery is disconnected or run down, the
codes are erased. Also, depending on
your driving habits, the codes may not be
completely set. Also, if the malfunction indicator lamp had
come on recently due to temporary mal-
function such as a loose fuel tank cap,
your vehicle may not pass the I/M test.
The malfunction indicator lamp will go off
after taking several driving trips, but the
error code in the OBD system will not be
cleared unless about 40 trips or more are
taken.
If your vehicle does not pass the I/M test
even the malfunction indicator lamp does
not come on, contact your Toyota dealer
to prepare the vehicle for re
−testing.
Emissions Inspection and
Maintenance (I/M) programs

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Stop/tail/rear side marker
lights 303,304 . . . . . . . . . . . . . . . . . . . . . . .
Light bulbs, Replacing 299 . . . . . . . . . . . . . . . .
Light, Interior
Ignition switch light 95 . . . . . . . . . . . . . . . . . .
Interior light 94 . . . . . . . . . . . . . . . . . . . . . . . .
Personal light 95 . . . . . . . . . . . . . . . . . . . . . . .
Step light 95 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limited slip differential 197 . . . . . . . . . . . . . . . .
Load capacity 208 . . . . . . . . . . . . . . . . . . . . . . . .
Lock
Front doors 12 . . . . . . . . . . . . . . . . . . . . . . . . .
Steering column 112 . . . . . . . . . . . . . . . . . . .
Tailgate 22 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low engine oil pressure warning
light 104 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low fuel level warning light 104 . . . . . . . . . . . .
Low windshield washer fluid level warning light 104 . . . . . . . . . . . . . . . . . . . . . . .
M
Maintenance
Do −it−yourself maintenance 274 . . . . . . . . .
Does your vehicle need repairing? 269 . . . . . . . . . . . . . . . . . . . . . . .
General maintenance 267 . . . . . . . . . . . . . . .
Maintenance requirements 266 . . . . . . . . . .
Parts and tools 276 . . . . . . . . . . . . . . . . . . . . .
Where to go for service 266 . . . . . . . . . . . . .
Malfunction indicator lamp 270 . . . . . . . . . . . .
Malfunction indicator lamp
Emissions Inspection and Maintenance (I/M) programs 104 . . . . . . .
Service reminder indicator 104 . . . . . . . . . . Manual transmission
Driving with a manual transmission 117 . . . . . . . . . . . . . . . . . . . . .
Shift pattern 117 . . . . . . . . . . . . . . . . . . . . . . .
Shifting speed 117 . . . . . . . . . . . . . . . . . . . . .
Maximum allowable speed
Automatic transmission 113 . . . . . . . . . . . . .
Manual transmission 117 . . . . . . . . . . . . . . .
Mirror
Anti −glare inside rear view 88
. . . . . . . . . . .
Mirrors
Folding rear view 88
. . . . . . . . . . . . . . . . . . . .
Outside rear view 87
. . . . . . . . . . . . . . . . . . .
Power rear view 87
. . . . . . . . . . . . . . . . . . . . .
Vanity 90
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N
New vehicle break −in 187 . . . . . . . . . . . . . . . . .
Note pad holder 182 . . . . . . . . . . . . . . . . . . . . . .
O
Odometer 103
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Off −road driving precautions 217
. . . . . . . . . .
Off −road vehicle precautions 186
. . . . . . . . . .
Oil
Consumption 192
. . . . . . . . . . . . . . . . . . . . . .
Power steering 285
. . . . . . . . . . . . . . . . . . . . .
Pressure gauge 101
. . . . . . . . . . . . . . . . . . . .
Viscosity and grade 280
. . . . . . . . . . . . . . . .
Oil consumption 192
. . . . . . . . . . . . . . . . . . . . .
Open door warning light 104
. . . . . . . . . . . . . . .
Operation in foreign countries 189
. . . . . . . . . Outside rear view mirror heaters 98
. . . . . . . .
Overdrive switch 113
. . . . . . . . . . . . . . . . . . . . .
Overheating, Engine 238
. . . . . . . . . . . . . . . . . .
Overheating, Engine coolant 100
. . . . . . . . . .
Overview
Engine compartment 272
. . . . . . . . . . . . . . .
P
Parking brake
Operation 123 . . . . . . . . . . . . . . . . . . . . . . . . .
Reminder light 123 . . . . . . . . . . . . . . . . . . . . .
Passenger airbag manual on −off
switch 56 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Polishing 261 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power outlet 167 . . . . . . . . . . . . . . . . . . . . . . . . .
Power rear view mirror control 87 . . . . . . . . . .
Power rear window 21 . . . . . . . . . . . . . . . . . . . .
Power steering
Fluid level 285 . . . . . . . . . . . . . . . . . . . . . . . . .
Power window switches 18 . . . . . . . . . . . . . . . .
Preloaders
(seat belt pretensioners) 45 . . . . . . . . . . . . .
Pretensioners
(seat belt pretensioners) 45
. . . . . . . . . . . . .
Protecting your Toyota from
corrosion 260
. . . . . . . . . . . . . . . . . . . . . . . . . .
R
Radiator
Checking the radiator 284 . . . . . . . . . . . . . . .
Coolant, Engine 282 . . . . . . . . . . . . . . . . . . . .
Radio 128 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Rear console box173,174
. . . . . . . . . . . . . . . .
Rear side windows 20
. . . . . . . . . . . . . . . . . . . .
Rear step bumper 196
. . . . . . . . . . . . . . . . . . . .
Rear view mirror
Anti −glare inside 88
. . . . . . . . . . . . . . . . . . . .
Rear view mirrors
Folding 88
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside 87
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 87
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear window 21
. . . . . . . . . . . . . . . . . . . . . . . . .
Remote keyless entry system 14,258 . . . . . .
Reporting safety defects for U.S.
owners 320
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
S
Seat adjustment precautions
Front seats 31 . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt extender 43 . . . . . . . . . . . . . . . . . . . . .
Seat belts
Cleaning 262 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastening 38 . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt precautions 38 . . . . . . . . . . . . . . . .
Seat belt pretensioners 45 . . . . . . . . . . . . . .
Seating capacity 208 . . . . . . . . . . . . . . . . . . . . .
Seats 30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security system 24 . . . . . . . . . . . . . . . . . . . . . . .
Service and maintenance 266 . . . . . . . . . . . . .
Service reminder indicator 104 . . . . . . . . . . . .
Side steps 197 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare fuse 298 . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare tire 241,242 . . . . . . . . . . . . . . . . . . . . . . .
Spark plugs
Twin ground electrode spark plugs 193 . . . . . . . . . . . . . . . . . . . . . . . . . . . Specifications 308
. . . . . . . . . . . . . . . . . . . . . . .
SRS driver airbag and front passenger airbag 47 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRS warning light 104 . . . . . . . . . . . . . . . . . . . .
Starting
Cold weather 214 . . . . . . . . . . . . . . . . . . . . . .
Engine 214 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump starting 235 . . . . . . . . . . . . . . . . . . . . . .
Steering
Tilt steering wheel 86 . . . . . . . . . . . . . . . . . . .
Steering column
Column lock 112 . . . . . . . . . . . . . . . . . . . . . . .
Steering switches, Audio remote control 150 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
StepSide bed 197 . . . . . . . . . . . . . . . . . . . . . . . .
Sun visors 89 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension and chassis 199 . . . . . . . . . . . . . .
Swing −up rear seats 36 . . . . . . . . . . . . . . . . . . .
Switch
Emergency flasher 93 . . . . . . . . . . . . . . . . . .
Headlight, dimmer and turn signal 92 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition 112 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside rear view mirror heaters 98 . . . . . .
Overdrive 113 . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger airbag manual on −off 56 . . . . . .
Windshield wiper and washer 96,97 . . . . . .
T
Tachometer 102
. . . . . . . . . . . . . . . . . . . . . . . . .
Tailgate 22
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft prevention labels 199
. . . . . . . . . . . . . . .
Three −way catalytic converters 190 . . . . . . . .
Tilt steering wheel 86
. . . . . . . . . . . . . . . . . . . . . Tires
Changing 239
. . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing 289
. . . . . . . . . . . . .
Flat tire 239
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Inflation pressure 286,316
. . . . . . . . . . . . . .
Replacing wheels 294
. . . . . . . . . . . . . . . . . .
Rotating tires 291
. . . . . . . . . . . . . . . . . . . . . .
Size 202,316
. . . . . . . . . . . . . . . . . . . . . . . . . .
Snow tires and chains 292
. . . . . . . . . . . . . .
Spare 241,242
. . . . . . . . . . . . . . . . . . . . . . . . .
Symbols 200
. . . . . . . . . . . . . . . . . . . . . . . . . .
Tire Identification Number (TIN) 201 . . . . . .
Tire related terms 205
. . . . . . . . . . . . . . . . . .
Tools 241,242
. . . . . . . . . . . . . . . . . . . . . . . . . . .
To w i n g
Capacity 208
. . . . . . . . . . . . . . . . . . . . . . . . . .
Dinghy towing 219
. . . . . . . . . . . . . . . . . . . . .
Emergency towing 254,255
. . . . . . . . . . . . .
Emergency towing hook precautions 256
. . . . . . . . . . . . . . . . . . . . . .
If your vehicle needs to be towed 252
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Tips for towing a stuck vehicle 257 . . . . . . .
Trailer 220
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Toyota vehicle intrusion protection system 24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trailer towing 220
. . . . . . . . . . . . . . . . . . . . . . . .
Trip meter 103
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Turn signals 92
. . . . . . . . . . . . . . . . . . . . . . . . . .
TVIP 24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires 211
. . . . . . . . . . . . . . . . . . . . . . . .

’03 TUNDRA_U (L/O 0307)
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Publication No. OM34430U
Part No. 01999-34430
Printed in Japan 01−0307 −00
\b
 ( U)
Quick index
If a service reminder indicator or warning buzzer comes on NO TAG . . . .
 If your vehicle will not start NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your engine stalls while driving NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
 If you have a flat tire NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . .
 If your vehicle needs to be towed NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during break −in period NO TAG . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 General maintenance NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 Complete index NO TAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . . .
Gas station information
Fuel type:
UNLEADED gasoline, Octane Rating 87 (Research Octane Number 91)
or higher
See page NO TAG for detailed information.
Fuel tank capacity: 100 L (26.4 gal., 22.0 lmp. gal.)
Engine oil:
API grade SL “Energy −Conserving” or ILSAC multigrade engine oil is recom-
mended.
See page NO TAG for detailed information.
Automatic transmission fluid: Toyota Genuine ATF Type T −IV
See page NO TAG for detailed information.
Tire information: See pages 286 through NO TAG.
Tire inflation pressure: See page NO TAG.
sU −8
B