2006 TOYOTA TUNDRA air suspension

’06 TUNDRA_U (L/O 0508)
73
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
The seat belt pretensioner system con-
sists mainly of the following components
and their locations are shown in the il-
lustration.
1. Front airbag sensors
2. Front passenger occupant classification indicator light
3. Front passenger occupant classification system (ECU and sensors)
4. Seat belt pretensioner assemblies
5. Front passenger ’s seat belt buckle switch
6. Airbag sensor assembly
7. SRS warning light
The seat belt pretensioners are controlled
by the airbag sensor assembly. The airbag
sensor assembly consists of a safing sen-
sor and airbag sensor.
When the seat belt pretensioners are acti-
vated, an operating noise may be heard
and a small amount of non −toxic gas may
be released. This does not indicate that
a fire is occurring. This gas is normally
harmless.
Once the seat belt pretensioners have
been activated, the seat belt retractors
remain locked.CAUTION
Do not modify, remove, strike or open
the seat belt pretensioner assemblies,
airbag sensor or surrounding area or
wiring. Failure to follow these instruc-
tions may prevent the seat belt pre-
tensioners from activating correctly,
cause sudden operation of the system
or disable the system, which could
result in death or serious injury. Con-
sult your Toyota dealer about any re-
pair and modification.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
seat belt pretensioners in some
cases.
 Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Repairs on or near the front seat
belt pretensioner assemblies
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure or con-
sole

’06 TUNDRA_U (L/O 0508)
82
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Do not modify or remove any wir-
ing. Do not modify, remove, strike
or open any components such as
the steering wheel pad, steering
wheel, column cover, dashboard
near the front passenger airbag,
front passenger airbag cover, front
passenger airbag or airbag sensor
assembly. Doing so may prevent the
front airbag system from activating
correctly, cause sudden activation
of the system or disable the sys-
tem, which could result in death or
serious injury.
Do not use seat accessory, such as
a cushion or seat cover, that covers
the front seat, or do not modify or
replace the upholstery of the front
seat. Such accessories or changes
may prevent the front passenger
airbag system from activating cor-
rectly, disable the system or cause
the front passenger airbag to inflate
accidentally, resulting in death or
serious injury.
Failure to follow these instructions
can result in death or serious injury.
Consult your Toyota dealer about any
repair and modification.
If you wish to modify your vehicle for
a person with physical disability, con-
sult your Toyota dealer. It may dan-
gerously interfere with the SRS front
airbags operation.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS airbag system in some cases.
Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag

’06 TUNDRA_U (L/O 0508)
90
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Do not put anything or any part of
your body on or in front of the
dashboard or steering wheel pad
that houses the airbag system. They
might restrict inflation or cause
death or serious injury as they are
projected rearward by the force of
the deploying airbags. Likewise, the
driver and front passenger should
not hold objects in their arms or on
their knees.
Do not modify or remove any wir-
ing. Do not modify, remove, strike
or open any components such as
the steering wheel pad, steering
wheel, column cover, dashboard
near the front passenger airbag,
front passenger airbag cover, front
passenger airbag or airbag sensor
assembly. Doing so may prevent the
front airbag system from activating
correctly, cause sudden activation
of the system or disable the sys-
tem, which could result in death or
serious injury.
Split bench seat—Do not use seat
accessory, such as a cushion or
seat cover, that covers the front
seat, or do not modify or replace
the upholstery of the front seat.
Such accessories or changes may
prevent the front passenger airbag
system from activating correctly,
disable the system or cause the
front passenger airbag to inflate ac-
cidentally, resulting in death or seri-
ous injury.
Failure to follow these instructions
can result in death or serious injury.
Consult your Toyota dealer about any
repair and modification.
If you wish to modify your vehicle for
a person with physical disability, con-
sult your Toyota dealer. It may dan-
gerously interfere with the SRS front
airbags operation.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can in-
terfere with proper operation of the
SRS front airbag system in some
cases.
Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture

’06 TUNDRA_U (L/O 0508)
100
2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Do not disassemble or repair the
front and rear pillars and roof side
rail containing the curtain shield
airbags. Such changes may disable
the system or cause the curtain
shield airbags to inflate accidental-
ly, resulting in death or serious in-
jury.
Do not use tires or wheels other
than the manufacturer ’s recom-
mended size. Such a use may cause
the curtain shield airbags to inflate
accidentally, which could result in
death or serious injury. For details,
see “Checking and replacing tires”
in Section 72.
Failure to follow these instructions
can result in death or serious injury.
Consult your Toyota dealer about any
repair and modification.
If you wish to modify your vehicle for
a person with physical disability, con-
sult your Toyota dealer. It may dan-
gerously interfere with the SRS side
airbags and curtain shield airbags op-
eration.
NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can
interfere with proper operation of the
SRS side airbag and curtain shield
airbag system in some cases.
 Installation of electronic devices
such as a mobile twoway radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the side structure of
the passenger compartment
 Repairs made on or near the con-
sole or front seat
This indicator comes on when the igni-
tion key is turned to the “ON” position.
It goes off after about 6 seconds. This
means the SRS side airbags and curtain
shield airbags are operating properly.

’06 TUNDRA_U (L/O 0508)
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2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Doors and engine hood
Check that all doors including tailgate op-
erate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from
opening when the primary latch is re-
leased.
Tire inflation pressure
Check the pressure with a gauge ev-
ery two weeks, or at least once a
month. See Section 7−2 for additional
information.
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See Sec-
tion 7 −2 for additional information.
When checking the tires, make sure
no nuts are missing, and check the
nuts for looseness. Tighten them if
necessary.
Tire rotation
Rotate the tires according to the
maintenance schedule. (For sched-
uled maintenance information, please
refer to the “Scheduled Maintenance
Guide” or “Owner ’s Manual Supple-
ment”.) See Section 7 −2 for additional
information.
Be on the alert for changes in perfor-
mance, sounds, and visual tip −offs that
indicate service is needed. Some impor-
tant clues are as follows:
Engine missing, stumbling, or pinging
Appreciable loss of power
Strange engine noises
A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)
Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)
Flat −looking tire; excessive tire squeal
when cornering; uneven tire wear
Vehicle pulls to one side when driving
straight on a level road
Strange noises related to suspension
movement
Loss of brake effectiveness; spongy
feeling brake or clutch pedal; pedal al-
most touches floor; vehicle pulls to one
side when braking
Engine coolant temperature continually
higher than normal
Engine continually runs hot; oil pres-
sure gauge stays low
If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?

’06 TUNDRA_U (L/O 0508)
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2006 TUNDRA from Oct. ’06 Prod. (OM 34458U)
Outside temperature display 322
. . . . . . . . . . .
Overdrive switch 191
. . . . . . . . . . . . . . . . . . . . .
Overheating, Engine 407
. . . . . . . . . . . . . . . . . .
Overheating, Engine coolant 174
. . . . . . . . . .
Overview
Engine compartment 442
. . . . . . . . . . . . . . .
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 . . . . . . . . . . . . . . . . . . . . . . . . . . .