2015 TOYOTA TUNDRA warning lights

411-1. For safe use
1
For safety and security
Your vehicle is equipped with ADVANCED AIRBAGS designed based
on the US motor vehicle safety standards (FMVSS208). The airbag
sensor assembly (ECU) controls airbag deployment based on infor-
mation obtained from the sensors et c. shown in the system compo-
nents diagram above. This informat ion includes crash severity and
occupant information. As the airbags deploy, a chemical reaction in
the inflators quickly fills the airbag s with non-toxic gas to help restrain
the motion of the occupants.
Front bench type seat: The SRS airbags are designed to protect the
driver and right front passenger, and they are not designed to protect
an occupant in the front center seating position. Seat belt pretensioners
Knee airbags
“AIR BAG ON” and “AIR BAG
OFF” indicator lights
Front passenger airbag
Curtain shield airbags
Side airbags (front seats)
Front passenger occupant
classification system (ECU
and sensors)
SRS warning light
Driver airbag
Driver’s seat position sensor
Side impact sensors (rear)
(Double Cab and CrewMax
models)
Side impact sensors (front
door) (Double Cab and Crew-
Max models)
Side impact sensors (front)
(Regular Cab models)
Driver’s seat belt buckle
switch
Front passenger’s seat belt
buckle switch
Front impact sensors
Airbag sensor assembly
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17

511-1. For safe use
1
For safety and security
■Adult*1
■Child*3 or child restraint system*4
Condition and operation in the front passenger occupant classi-
fication system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG ON”
SRS warning lightOff
Front passenger’s seat belt reminder lightFlashing*2
Devices
Front passenger airbag
Activated
Front passenger knee airbag
Side airbag
on the front passenger seat
Curtain shield airbag
in the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG OFF”
*5
SRS warning lightOff
Front passenger’s seat belt reminder lightFlashing*2
Devices
Front passenger airbag
Deactivated
Front passenger knee airbag
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger’s seat belt pretensioner

521-1. For safe use
■Unoccupied
■There is a malfunction in the system
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF”
indicator lightsNot illuminated
SRS warning light
Off
Front passenger’s seat belt reminder light
Devices
Front passenger airbag
Deactivated
Front passenger knee airbag
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger’s seat belt pretensioner
Deactivated*6
or
activated
*7
Indicator/
warning light
“AIR BAG ON” and “AIR BAG OFF” indicator lights“AIR BAG OFF”
SRS warning lightOn
Front passenger’s seat belt reminder lightOff
Devices
Front passenger airbag
Deactivated
Front passenger knee airbag
Side airbag
on the front passenger seat
ActivatedCurtain shield airbag
in the front passenger side
Front passenger’s seat belt pretensioner

83
Instrument cluster2
2. Instrument clusterWarning lights and indicators .......................... 84
Gauges and meters ............ 88
Multi-information display ..... 90

842. Instrument cluster
Warning lights and indicators
The warning lights and indicators on the instrument cluster and
center panel inform the driver of the status of the vehicle’s vari-
ous systems.
For the purpose of explanation, the following illustration dis-
plays all warning lights a nd indicators illuminated.

852. Instrument cluster
2
Instrument cluster
Warning lights inform the driver of malfunctions in the indicated vehi-
cle’s systems.
*1: These lights turn on when the engine switch is turned to the “ON” position to indicate that a system check is being performed. They will turn off after
the engine is started, or after a few seconds. There may be a malfunction
in a system if the lights do not come on, or if the lights do not turn off. Have
the vehicle inspected by your Toyota dealer for details.
*2: The light comes on to indicate a malfunction.
*3: The light illuminates on the multi-information display.
Warning lights
*1
(U.S.A.)
Brake system warning
light ( P. 465)Open door warning light
(P. 466)
*1
(Canada)
Brake system warning
light ( P. 465)Low fuel level warning
light (P. 466)
*1
Charging system warn-
ing light ( P. 465)Seat belt reminder light
(P. 466)
*1
Malfunction indicator
lamp ( P. 465)
*1
Master warning light
(P. 466)
*1
SRS warning light
(P. 465)
*1Tire pressure warning
light ( P. 467)
*1
(U.S.A.)
ABS warning light
(P. 466)
*1, 2
Slip indicator ( P. 467)
*1
(Canada)
ABS warning light
(P. 466)
*3
(Flashes)
Cruise control indicator
light ( P. 467)

872. Instrument cluster
2
Instrument cluster
*1: These lights turn on when the engine switch is turned to the “ON” positionto indicate that a system check is being performed. They will turn off after
the engine is started, or after a few seconds. There may be a malfunction
in a system if the lights do not come on, or if the lights do not turn off. Have
the vehicle inspected by your Toyota dealer for details.
*2: The light flashes to indicate that the system is operating.
*3: In order to confirm operation, the BS M outside rear view mirror indicators
illuminate in the following situations:
• When the engine switch is turned to the “ON” position while the BSM main switch is set to ON.
• When the BSM main switch is set to ON while the engine switch is in the “ON” position.
If the system is functioning correctly, the BSM outside rear view mirror indi-
cators will turn off after a few seconds.
If the BSM outside rear view mirror indicators do not illuminate or do not
turn off, there may be a malfunction with the system.
If this occurs, have the vehicle inspected by your Toyota dealer.
*4: The light illuminates on the outside rear view mirrors.
*5: The light illuminates on the center panel.
*6: The light illuminates on the multi-information display.
CAUTION
■ If a safety system warning light does not come on
Should a safety system light such as the ABS and SRS warning light not
come on when you start the engine, this could mean that these systems are
not available to help protect you in an accident, which could result in death
or serious injury. Have the vehicle inspected by your Toyota dealer immedi-
ately if this occurs.

465
8
When trouble arises
8-2. Steps to take in an emergency
If a warning light turns on or a warning
buzzer sounds
Calmly perform the following actions if any of the warning lights
comes on or flashes. If a light comes on or flashes, but then
goes off, this does not necessarily indicate a malfunction in the
system. However, if this continues to occur, have the vehicle
inspected by your Toyota dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer)*1
• Low brake fluid
• Malfunction in the brake system This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer.
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system.
 Have the vehicle inspected by your Toyota dealer
immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The front passenger occupant classification system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Toyota dealer
immediately.