2006 TOYOTA TUNDRA spark plugs

’06 TUNDRA_U (L/O 0508)
349
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
INFORMATION BEFORE DRIVING YOUR
TOYOTA
Information before driving your Toyota
Off−road vehicle precautions 350
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break −in period 351
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Fuel 351
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Fuel pump shut off system 353
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Operation in foreign countries 354
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Three −way catalytic converters 354
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Engine exhaust cautions 355
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Facts about engine oil consumption 356
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Iridium −tipped spark plugs 357
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Brake system 358
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Brake pad wear limit indicators 364
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Rear step bumper 364
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StepSide bed 365
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Limited −slip differential 365
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Your Toyota’s identification 365
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Theft prevention labels 367
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Suspension and chassis 367
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Tire information 368
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Vehicle load limits 376
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Cargo and luggage 377
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Types of tires 379
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SECTION 2

’06 TUNDRA_U (L/O 0508)
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2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high−speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
Oil consumption: Max. 1.0 L per 1000
km (1.1 qt./600 miles, 0.9 lmp. qt./600
miles)
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately.
As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds. IMPORTANCE OF ENGINE OIL LEVEL
CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.
NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
For detailed information on oil level check,
see “Checking the engine oil level” in Sec-
tion 7
−2.
Your engine is fitted with iridiumtipped
spark plugs.
NOTICE
Use only iridiumtipped spark plugs.
Do not adjust gaps for engine perfor-
mance or smooth driveability.
Iridiumtipped spark plugs
(4.7 L V8 [2UZFE] engine)

’06 TUNDRA_U (L/O 0508)
404
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
The gas normally produced by a
battery will explode if a flame or
spark is brought near. Use only
standardized jumper cables and do
not smoke or light a match while
jump starting.
NOTICE
The battery used for boosting must
be 12 V. Do not jump start unless you
are sure that the booster battery is
correct.
JUMP STARTING PROCEDURE
1. If the booster battery is installed in another vehicle, make sure the vehicles
are not touching. Turn off all unneces-
sary lights and accessories.
When boosting, use the battery of
matching or higher quality. Any other
battery may be difficult to jump start
with.
If jump starting is difficult, charge the
battery for several minutes.
2. If required, remove all the vent plugs from the booster and discharged batter-
ies. Lay a cloth over the open vents
on the batteries. (This helps reduce the
explosion hazard, personal injuries and
burns.)
3. If the engine in the vehicle with the booster battery is not running, start it
and let it run for a few minutes. During
jump starting, run the engine at about
2000 rpm with the accelerator pedal
lightly depressed.
Discharged battery
Booster
battery
Positive terminal
(“+” mark)
Jumper
cable
Positive
terminal
(“+” mark)
4. Make the cable connections in the or-
der a, b, c, d.
a. Connect the clamp of the positive
(red) jumper cable to the positive (+)
terminal on the discharged battery.
b. Connect the clamp at the other end
of the positive (red) jumper cable to
the positive (+) terminal on the booster
battery.

’06 TUNDRA_U (L/O 0508)
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2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
CAUTION
When the engine is running, keep
hands, clothing, and tools away
from the moving fan and engine
drive belts. (Removing rings,
watches, and ties is advisable.)
Right after driving, the engine
compartment—the engine, radiator,
exhaust manifold, power steering
fluid reservoir and spark plug
boots, etc.—will be hot. So be care-
ful not to touch them. Oil, fluids
and spark plugs may also be hot.
If the engine is hot, do not remove
the radiator cap or loosen the drain
plugs to prevent burning yourself.
Do not leave anything that may
burn easily, such as paper or rags,
in the engine compartment.
Do not smoke, cause sparks or al-
low open flames around fuel or the
battery. Their fumes are flammable.
Do not get under your vehicle with
just the body jack supporting it. Al-
ways use automotive jack stands or
other solid supports.
Use eye protection whenever you
work on or under your vehicle
where you may be exposed to flying
or falling material, fluid spray, etc.
Used engine oil contains potentially
harmful contaminants which may
cause skin disorders such as in-
flammation or skin cancer, so care
should be taken to avoid prolonged
and repeated contact with it. To re-
move used engine oil from your
skin, wash thoroughly with soap
and water.
Do not leave used oil within the
reach of children.
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Be extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
NOTICE
Remember that battery and ignition
cables carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.
 Add only “Toyota Super Long Life
Coolant” or similar high quality eth-
ylene glycol based nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife hybrid
organic acid technology to fill the
radiator. “Toyota Super Long Life
Coolant” is a mixture of 50% cool-
ant and 50% deionized water (for
the U.S.A.) or 55% coolant and 45%
deionized water (for Canada).
 If you spill some of the coolant, be
sure to wash it off with water to
prevent it from damaging the parts
or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Do not pry the outer electrode of a
spark plug against the center elec-
trode.

’06 TUNDRA_U (L/O 0508)
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2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
 Do not reuse iridiumtipped spark
plugs by cleaning or regapping.
 Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 Be careful not to scratch the glass
surface with the wiper frame.
 When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.Here is a list of parts and tools you will
need to perform do− it−yourself mainte-
nance. Remember all Toyota parts are de-
signed in metric sizes, so your tools must
be metric.
CHECKING THE ENGINE OIL LEVEL
Parts (if level is low):
“Toyota Genuine Motor Oil” or equiva-
lent
See Section 7 −2 for details about en-
gine oil selection.
Tools:
Rag or paper towel
Funnel (only for adding oil)
CHECKING THE ENGINE COOLANT
LEVEL
Parts (if level is low):
“Toyota Super Long Life Coolant” or
similar high quality ethylene glycol
based non −silicate, non −amine, non− ni-
trite, and non −borate coolant with long −
life hybrid organic acid technology.
“Toyota Super Long Life Coolant” is a
mixture of 50% coolant and 50% deion-
ized water (for the U.S.A.) or 55%
coolant and 45% deionized water (for
Canada). Tools:
Funnel (only for adding coolant)
CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):
Automatic transmission fluid
DEXRON II or III
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench (for terminal
clamp bolts)
Parts and tools

’06 TUNDRA_U (L/O 0508)
509
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Outside temperature display 322
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Overdrive switch 191
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Overheating, Engine 407
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Overheating, Engine coolant 174
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Overview
Engine compartment 442
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P
Parking brake
Operation 213 . . . . . . . . . . . . . . . . . . . . . . . . .
Reminder light 213 . . . . . . . . . . . . . . . . . . . . .
Passenger airbag off switch 84 . . . . . . . . . . . .
Polishing 429 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power back window 39 . . . . . . . . . . . . . . . . . . .
Power outlet 328,329 . . . . . . . . . . . . . . . . . . . . .
Power rear view mirror control 155 . . . . . . . . .
Power steering
Fluid level 455 . . . . . . . . . . . . . . . . . . . . . . . . .
Power window switches 35 . . . . . . . . . . . . . . . .
Preloaders (seat belt pretensioners) 71 . . . . .
Pretensioners
(seat belt pretensioners) 71 . . . . . . . . . . . . .
Protecting your Toyota from corrosion 428 . . . . . . . . . . . . . . . . . . . . .
R
Radiator
Checking the radiator 453 . . . . . . . . . . . . . . .
Coolant, Engine 452 . . . . . . . . . . . . . . . . . . . .
Radio 218 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rear audio system
Rear seat audio system 242 . . . . . . . . . . . . .
Rear audio/video system
Rear seat entertainment system 251 . . . . .
Rear console box 336,337 . . . . . . . . . . . . . . . .
Rear side windows 38 . . . . . . . . . . . . . . . . . . . .
Rear step bumper 364 . . . . . . . . . . . . . . . . . . . .
Rear vents 313 . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear view mirror
Anti −glare inside 156 . . . . . . . . . . . . . . . . . . .
Rear view mirror, auto anti −glare inside 157 . . . . . . . . . . . . . . .
Rear view mirrors
Folding 156 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside 154 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power 155 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Remote controls 240 . . . . . . . . . . . . . . . . . . . . .
Reporting safety defects
for U.S. owners 498 . . . . . . . . . . . . . . . . . . . .
Roll sensing of curtain shield airbags off switch 114 . . . . . . . . . . . . . . . . . .
S
Seat adjustment precautions
Front seats 53 . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt extender 69 . . . . . . . . . . . . . . . . . . . . .
Seat belts
Cleaning 431 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastening 63 . . . . . . . . . . . . . . . . . . . . . . . . . .
Seat belt precautions 63 . . . . . . . . . . . . . . . .
Seat belt pretensioners 71 . . . . . . . . . . . . . .
Seat heater switches 62 . . . . . . . . . . . . . . . . . .
Seating capacity 376 . . . . . . . . . . . . . . . . . . . . . Seats 52
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Security system 42 . . . . . . . . . . . . . . . . . . . . . . .
Service and maintenance 436 . . . . . . . . . . . . .
Service reminder indicator 178 . . . . . . . . . . . .
Side door locks 21 . . . . . . . . . . . . . . . . . . . . . . .
Side doors 21 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side steps 365 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side vents 313 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare fuse 468 . . . . . . . . . . . . . . . . . . . . . . . . . .
Spare tire 409,410 . . . . . . . . . . . . . . . . . . . . . . .
Spark plugs
Iridium −tipped spark plugs 357 . . . . . . . . . .
Specifications 480 . . . . . . . . . . . . . . . . . . . . . . .
SRS driver airbag and front passenger airbag 75,85 . . . . . . . . . . . .
SRS side airbags and curtain shield airbags 92 . . . . . . . . . . . . . . . .
SRS warning light 178 . . . . . . . . . . . . . . . . . . . .
Starting
Cold weather 382 . . . . . . . . . . . . . . . . . . . . . .
Engine 382 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Jump starting 403 . . . . . . . . . . . . . . . . . . . . . .
Steering
Tilt steering wheel 154 . . . . . . . . . . . . . . . . . .
Steering column
Column lock 190 . . . . . . . . . . . . . . . . . . . . . . .
StepSide bed 365 . . . . . . . . . . . . . . . . . . . . . . . .
Sun visors 158 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension and chassis 367 . . . . . . . . . . . . . .
Swing −up rear seats 58 . . . . . . . . . . . . . . . . . . .
Switch
Back window defogger 171 . . . . . . . . . . . . . .
Emergency flasher 163 . . . . . . . . . . . . . . . . .
Headlight, dimmer and turn signal 162 . . . .
Ignition 190 . . . . . . . . . . . . . . . . . . . . . . . . . . .