2003 TOYOTA TUNDRA heater

’03 TUNDRA_U (L/O 0307)
4
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
1. Outside rear view mirror heater switch
2. Clutch start cancel switch or power
rear window switch
3. Headlight, turn signal and front fog light switches
4. Ignition switch
5. Wiper and washer switches
6. Cargo lamp switch
7. Emergency flasher switch
8. Car audio
9. Air conditioning controls
10. Front passenger ’s seat belt reminder light/passenger airbag off indicator
11. Passenger airbag manual on −off switch
12. Clock
13. “4LO” button (transfer mode selector button)
14. Cup holder
15. Power outlets
16. Ashtray
17. Cigarette lighter
18. “2WD/4HI” button (transfer mode selector button)

’03 TUNDRA_U (L/O 0307)
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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
CAUTION
Do not adjust the steering wheel
while the vehicle is moving. Doing
so may cause the driver to mishan-
dle the vehicle and an accident may
occur resulting in death or serious
injuries.
After adjusting the steering wheel,
try moving it up and down to make
sure it is locked in position.
Adjust the mirror so that you can just
see the side of your vehicle in the mir-
ror.
Be careful when judging the size or dis-
tance of any object seen in the outside
rear view mirror on the passenger’s side
because it is a convex mirror. Any object
seen in a convex mirror will look smaller
and farther away than when seen in a flat
mirror.
CAUTION
Do not adjust the mirror while the
vehicle is moving. Doing so may
cause the driver to mishandle the
vehicle and an accident may occur
resulting in death or serious inju-
ries.
On some models, since the mirror
surfaces can get hot, do not touch
them when the outside rear view
mirror heater switch is on.
Outside rear view mirrors—

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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Lights and Wipers
Headlights and turn signals 92
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Emergency flashers 93
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . .
Instrument panel light control 94
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front fog lights 94
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Interior light 94
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . .
Personal lights 95
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Ignition switch and step lights 95
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo lamp 95
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . .
Windshield wipers and washer 96
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside rear view mirror heaters 98
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1 4

’03 TUNDRA_U (L/O 0307)
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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
To defog or defrost the outside rear
view mirrors, push the switch.
The key must be in the “ON” position.
The heater panels in the outside rear view
mirrors will quickly clear the mirror sur-
faces. An indicator light will illuminate to
indicate the mirror heaters are operating.
Push the switch once again to turn the
mirror heaters off.
The system will automatically shut off af-
ter the mirror heaters have operated about
15 minutes.
CAUTION
Since the mirror surfaces can get hot,
do not touch them when the switch
is on.
Make sure you turn the mirror heaters off
when the mirror surfaces are clear. Leav-
ing the mirror heaters on for a long time
could cause the battery to discharge, es-
pecially during stop−and− go driving. The
mirror heaters are not designed for drying
rain water or for melting snow.
If the outside rear view mirrors are heavi-
ly coated with ice, use a spray de −icer
before operating the switch.
Outside rear view mirror
heaters

’03 TUNDRA_U (L/O 0307)
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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Cold tire inflation pressure
Tire inflation pressure when the vehicle has been parked at least 3 hours
or more, or it has not been driven mo re than 1.5 km or 1 mile under that
condition
Maximum inflation pressureThe maximum cold inflatio n pressure to which a tire may be inflated and
shown on the sidewall of the tire
Recommended inflation pressureCold tire inflation pressure recommended by a manufacturer
Accessory weight
The combined weight (in excess of those standard items which may be
replaced) of automatic transmission, power steering, power brakes, power
windows, power seats, radio, and heater, to the extent that these items
are available as factory −installed equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard equipment including the
maximum capacity of fuel, oil, and coolant, and, if so equipped, air
conditioning and additional weight optional engine
Maximum loaded vehicle weight
T he sum of —
(a) Curb weight;
(b) Accessory weight;
(c) Vehicle capacity weight; and
(d) Production options weight
Normal occupant weight68 kg (150 lb.) times the number of occupants specified in the second
column of Table 1 that follows
— Tire relat ed terms

’03 TUNDRA_U (L/O 0307)
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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
Engine compartment (5VZFE engine)
Instrument panel
Fuses (type A)
1. MIR HTR 15 A: Outside rear view mir-
ror heaters
2. FOG 15 A: Front fog lights
3. TOW BRK 30 A: Trailer brake control-
ler
4. SUB BATT 30 A: Trailer sub battery
5. TOW TAIL 30 A: Trailer lights (tail
lights)
6. PWR OUTLET 1 15 A: Power outlet
7. ECUB 5 A: Anti−lock brake system
8. HLP RH 10 A: Right−hand headlight
(high beam) 9. PWR OUTLET 2 15 A:
Power outlet
10. DOME 10 A: Interior light, personal
lights, vanity light, ignition switch light,
step light, door courtesy lights, open
door warning light
11. HLP LH 10 A : Left−hand headlight
(high beam)
12. EFI NO.2 10 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, emission control system
13. RADIO 20 A: Audio system
14. HEAD RL 10 A (with daytime running light system): Right−hand headlight
(low beam)
15. A/C 10 A: Air conditioning system
16. HEAD LL 10 A (with daytime running light system): Left−hand headlight (low
beam)
17. ALTS 7.5 A: Charging system
18. ETCS 10 A (2UZFE engine): Multiport
fuel injection system/sequential multi-
port fuel injection system, electronic
throttle control system
19. HAZ 15 A: Emergency flashers
20. EFI NO.1 20 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system, fuel pump, “EFI NO.2”
fuse

’03 TUNDRA_U (L/O 0307)
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2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

’03 TUNDRA_U (L/O 0307)
5
2003 TUNDRA from Jul. ’03 Prod. (OM 34430U)
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
. . . . . . . . . . . . . . . . . . . . . . . .