2008 TOYOTA TUNDRA warning

104
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system
∗, passenger airbag
off switch, passenger airbag on −off indica-
tor light, seat belt pretensioner assem-
blies, inflators, “RSCA OFF” indicator light,
interconnecting wiring and power sources.
(For details, see “Service reminder indica-
tors and warning buzzers” on page 197 in
Section 1 −6.)
∗: The front passenger occupant classifica-
tion system includes the front passenger
occupant classification ECU, load sensor
and front passenger ’s seat belt buckle
switch.
If either of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
engine switch is turned to the “ON”
position or remains on for more than
6 seconds.
The light comes on while driving. The SRS warning light will come on and
passenger airbag on
−off indicator light will
indicate “OFF” if there is a malfunction in
the front passenger occupant classification
system.
XS13137

106
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The indicator light will indicate “OFF”
when the engine switch is in the “ON”
position with the condition 2 in the table
shown below.
If the front passenger occupant classifica-
tion system determines that a person of
adult size sits in the front passenger seat
but the “OFF” indicator is illuminated, one
of the following is likely to have occurred:
Objects are placed under the front pas-
senger seat.
The front passenger seatback is in
contact with the back wall.
To ensure that the system correctly de-
tects the presence or absence of a person
of adult size sitting in the right front pas-
senger seat, make sure that none of the
above occur.
Make sure that the “ON” indicator is illu-
minated when a person of adult size is
seated in the right front passenger seat.
If the “OFF” indicator is illuminated, follow
the procedure below: 1. Turn the engine switch off.
2. Make sure the airbag off switch is set to the “AUTO” position.
3. Make sure the right front passenger seat belt is worn correctly. 4. Ask the front passenger to adjust the
seatback to the upright position and to
sit up straight on the center of the seat
cushion, with his/her legs comfortably
extended forward.
5. Turn the engine switch on, having the passenger remain in that position until
the passenger airbag on −off indicator
light indicates “ON”.
If the “OFF” indicator remains illuminated,
move the right front passenger seat fully
rearward.
XS13215
The SRS warning light will come on
and the passenger airbag onoff indica-
tor light will indicate “OFF” if there is
a malfunction in the front passenger
occupant classification system. Contact
your Toyota dealer as soon as possible.

107
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
Condition and operation in the front passenger occupant classification system
Condition detected bythe front passenger
occupant classification system
∗1
Passenger
airbag off switch
position
Indicator/warning lightDevices
Passenger
airbag
on− off
indicator
light
SRS
warning light
Front
passenger ’s seat belt
reminder
light
Front
passenger airbag
Side airbag
on the right front
passenger
seatCurtainshield
airbag in the front
passenger side
Front
passenger ’s
seat belt
pretensioner
1. Adult∗2“AUTO”“ON”OffFlashing∗5ActivatedActivated“OFF”“OFF”Deactivated
2. Child∗3 or child
restraint system∗ 4
“AUTO”“OFF”∗6OffFlashing∗5Deactivated
Activated
Activated“OFF”
3. Unoccupied“AUTO”Not
illuminated
OffOffDeactivatedDeactivated
“OFF”“OFF”
4. There is a malfunction in the
system“AUTO”
“OFF”OnOffDeactivatedActivated“OFF”
∗1: The right front passenger on the bench seat
∗2: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may
recognize him/her as a child depending on his/her physique and posture.
∗3: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/her
as an adult depending on his/her physique or posture.

11 0
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
Do not modify or remove the front
seats.
Do not kick the front passenger
seat or subject it to severe impact.
Otherwise, the SRS warning light
may come on to indicate a malfunc-
tion of the detection system. In this
case, contact your Toyota dealer im-
mediately.
The passenger airbag on−off indicator light
may indicate “ON” (the front passenger
airbag and side airbag on the front
passenger seat may deploy) even if
observing the above cautions, when a
child sits in, or a forward −facing child
restraint system is installed on the front
passenger seat. Refer to all the cautions
in “—SRS driver airbag and front
passenger airbag” on page 77, “—SRS
side airbags and curtain shield airbags” on
page 95 and “Child restraint” on page 115
in this Section. Your vehicle is equipped with a front
passenger occupant classification sys-
tem. The system detects conditions
1—4 (Shown in the table on page 112)
Based on these conditions, the systems
below are activated or deactivated:
Front passenger airbag
Side airbag on the right front passen-
ger seat
Front passenger ’s seat belt pretension-
er
The system monitors the weight and
load on the right front passenger seat,
and the seat belt buckle switch to de-
termine conditions 1—4.
In order to ensure the system detects
the conditions correctly:
Do not place a heavy load on the right
front passenger seat or the seatback
table, etc.
Do not attach a commercial seatback
table or other heavy item to the back
of the right front passenger seat.
Do not apply pressure to the right front
passenger seat by resting hands or
legs on the seatback.
XS13216
The passenger airbag onoff indicator
light indicates the actuation of the front
passenger airbag, side airbag on the
front passenger seat and front passen-
ger seat belt pretensioner.
The passenger airbag onoff indicator
light will indicate “ON” and “OFF”
when the engine switch is turned to the
“ON” position. After about four sec-
onds, it will go off. After that, the front
passenger occupant classification sys-
tem operates and judges whether to in-
dicate “ON” or “OFF”.
—Front passenger occupant
classification system
(Double cab and Crew Max models)

111
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The indicator light will indicate “OFF”
when the engine switch is in the “ON”
position with the condition 2 in the table
shown below.
If the front passenger occupant classifica-
tion system determines that a person of
adult size sits in the right front passenger
seat but the “OFF” indicator is illuminated,
one of the following is likely to have oc-
curred:
A rear passenger lifts the front passen-
ger seat cushion with their legs.
Objects are placed under the front pas-
senger seat.
The front passenger seatback is in
contact with the rear seat.
To ensure that the system correctly de-
tects the presence or absence of a person
of adult size sitting in the right front pas-
senger seat, make sure that none of the
above occur. Make sure that the “ON” indicator is illu-
minated when a person of adult size is
seated in the right front passenger seat.
If the “OFF” indicator is illuminated, ask
the passenger to sit up straight, well back
in the seat, and with the seat belt worn
correctly. If the “OFF” indicator remains
illuminated, either ask the passenger to
move to the rear seat, or if that is not
possible, move the right front passenger
seat fully rearward.
XS13215
The SRS warning light will come on
and the passenger airbag onoff indica-
tor light will indicate “OFF” if there is
a malfunction in the front passenger
occupant classification system. Contact
your Toyota dealer as soon as possible.

11 2
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
Condition and operation in the front passenger occupant classification system
Condition detected bythe front passenger
occupant classification system
∗1
Indicator/warning lightDevices
Passenger
airbag on −off
indicator lightSRS warning
light
Front
passenger ’s seat belt
reminder lightFront
passenger airbag
Side airbag
on the right front
passenger
seatCurtain shieldairbag in the front
passenger
sideFront
passenger ’s seat belt
pretensioner
1. Adult∗ 2“ON”OffFlashing∗5Activated
2. Child∗3 or child
restraint system∗ 4“OFF”∗6OffFlashing∗5Deactivated
Activated
Activated
3. UnoccupiedNot
illuminatedOffOffDeactivatedDeactivated
4. There is a malfunction in the
system
“OFF”OnOffDeactivatedActivated
∗1: The right front passenger on the bench seat.
∗2: The system judges a person of adult size as an adult. When a smaller adult sits in the front passenger seat, the system may
recognize him/her as a child depending on his/her physique and posture.
∗3: When a larger child who has outgrown a child restraint system sits in the front passenger seat, the system may recognize him/h er
as an adult depending on his/her physique or posture.
∗ 4: Never install a rear −facing child restraint system on the front passenger seat. A forward −facing child restraint system should only be
installed on the front passenger seat when it is unavoidable. (See “Child restraint” on page 115 in this Section as for install ing the
child restraint system.)
∗ 5: In the event the front passenger does not wear a seat belt.
∗6: In case the indicator is not illuminated, see “Child restraint” on page 115 as for installing the child restraint system prope rly.

11 4
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
When it is unavoidable to install the
forwardfacing child restraint sys-
tem on the front passenger seat,
install the child restraint system on
the right front passenger seat in
the proper order. (As for the instal-
lation order, see “—Installation with
seat belt” on page 128 in this Sec-
tion.)
Do not modify or remove the front
seats.
Do not kick the front passenger
seat or subject it to severe impact.
Otherwise, the SRS warning light
may come on to indicate a malfunc-
tion of the detection system. In this
case, contact your Toyota dealer im-
mediately.
The passenger airbag on−off indicator light
may indicate “ON” (the front passenger
airbag and side airbag on the front
passenger seat may deploy) even if
observing the above cautions, when a
child sits in, or a forward −facing child
restraint system is installed on the front
passenger seat. Refer to all the cautions
in “—SRS driver airbag and front
passenger airbag” on page 87, “—SRS
side airbags and curtain shield airbags” on
page 95 and “Child restraint” on page 115.
XS13029
The roll sensing of curtain shield air-
bags off switch (“RSCA OFF” switch)
can turn off the curtain shield airbags
and seat belt pretensioners in a vehicle
rollover. This switch should only be
used if inflation is not desired (such as
extreme offroad driving).
—Roll sensing of curtain
shield airbags off switch

181
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Gauges, Meters and Service reminder indicators
Fuel gauge 182
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. . . . . . . . . . .
Engine coolant temperature gauge 182
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil pressure gauge 183
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. . . . .
Automatic transmission fluid temperature gauge 184
. . . . . . . . . . . . . . .
Vo ltme te r 185
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . .
Tachometer 185
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . .
Odometer and two trip meters 186
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Multi −information display 187
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Service reminder indicators and warning buzzers 197
. . . . . . . . . . . . . .
SECTION 1 6