2015 TOYOTA TUNDRA warning light

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.

2184-5. Using the driving support systems
Rear Cross Traffic Alert buzzer (Rear Cross Traffic Alert function
only)
When a vehicle approaching from the right or left rear of the vehicle is
detected, a buzzer sounds from behind the left-hand rear pillar.
■The outside rear view mi rror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be dif-
ficult to see.
■ Rear Cross Traffic Alert buzzer hearing
Rear Cross Traffic Alert function may be difficult to hear over noises such as
high audio volume.
■ When there is a malfunction in the Blind Spot Monitor system
If a system malfunction is detected due to any of the following reasons,\
warn-
ing messages will be displayed: ( P. 473, 474)
● There is a malfunction with the sensors
● The sensors have become dirty
● The outside temperature is extremely high or low
● The sensor voltage has become abnormal
■ Certification for the B lind Spot Monitor system
For vehicles sold in the U.S.A.
FCC ID: OAYSRR2A
This device complies with part 15 of the FCC Rules. Operation is subject to
the following three conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received, including interference
that may cause undesired operation.
FCC Warning
Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
For vehicles sold in Canada
Applicable law: Canada 310
This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) this device may not
cause interference, and (2) this device must accept any interference, includ-
ing interference that may cause undesired operation of the device.
Frequency bands: 24.05 – 24.25 GHz
Output power: less than 20 milliwatts
3

4187-3. Do-it-yourself maintenance
■How to initialize the tire pressure warning systemPark the vehicle in a safe place and turn the engine switch off.
Initialization cannot be performed while the vehicle is moving.
Adjust the tire inflation pressure to the specified cold tire inflation
pressure level. ( P. 517)
Make sure to adjust the tire pressu re to the specified cold tire infla-
tion pressure level. The tire pressure warning system will operate
based on this pressure level.
Turn the engine switch to the “ON” position.
Press and hold the tire pres-
sure warning reset switch
until the tire pressure warn-
ing light blinks slowly 3 times.
Wait for a few minutes with the eng ine switch in the “ON” position
and then turn the engine switch to the “LOCK” position.
◆Registering ID codes
The tire pressure warning valve and transmitter is equipped with a
unique ID code. When replacing a tire pressure warning valve and
transmitter, it is necessary to register the ID code. Have the ID code
registered by your Toyota dealer.
1
2
3
4
5

4197-3. Do-it-yourself maintenance
7
Maintenance and care
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to
expose the fabric, and bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size
or location of a cut or other damage
If you are not sure, consult with your Toyota dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warning valve and transmitter is not reg-
istered, the tire pressure warning system will not work properly. After driv-
ing for about 20 minutes, the tire pressure warning light blinks for 1
minute and stays on to indicate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even
if it has seldom or never been used or damage is not obvious.
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation
pressure checks. Make sure to check tire inflation pressure as part of
your routine of daily vehicle checks.
■Maximum load of tire
Check that the number given by dividing the maximum load by 1.10 of the
replacement tire is greater than 1/ 2 of the Gross Axle Weight Ratings
(GAWR) of either the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification
Label. For the maximum load of the tire,
see the load limit at maximum cold tire
inflation pressure mentioned on the
sidewall of the tire. ( P. 524)

4217-3. Do-it-yourself maintenance
7
Maintenance and care
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, largedisplay, airport or other facility that generates strong radio waves or
electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless communication device
• If a radio set at similar frequencies is in use in the vehicle
●When the vehicle is parked, the time taken for the warning to start or go
off could be extended.
●When tire inflation pressure declines rapidly for example when a tire has
burst, the warning may not function.
■The initialization operation
●Make sure to carry out in itialization after adjusting the tire inflation pres-
sure.
Also, make sure the tires are cold be fore carrying out initialization or tire
inflation pressure adjustment.
●If you have accidentally turned the engine switch off during initialization,
it is not necessary to press the reset switch again as initialization will
restart automatically when the engine switch has been turned to the
“ON” position for the next time.
●If you accidentally press the reset s witch when initialization is not neces-
sary, adjust the tire inflation pressu re to the specified level when the
tires are cold, and conduct initialization again.
■When initialization of the tire pr essure warning system has failed
Initialization can be completed in a few minutes. However, in the following
cases, the settings have not been recorded and the system will not oper-
ate properly. If repeated attempts to record tire inflation pressure settings
are unsuccessful, have the vehicle inspected by your Toyota dealer.
●When operating the tire pressure wa rning reset switch, the tire pressure
warning light does not blink 3 times.
●After carrying out the initialization procedure, the tire pressure warning
light blinks for 1 minute then stays on after driving for about 20 minutes.

4227-3. Do-it-yourself maintenance
■Tire pressure warning system certification
FCC ID: GQ4-45T
FCC ID: GQ4-37R
For vehicles sold in the U.S.A.
NOTE:
This device complies with Part 15 of th e FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsi-
ble for compliance could void the user ’s authority to operate the equip-
ment.
For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may
not cause interference, and (2) this device must accept any interference,
including interference that may cause undesired operation of the device.
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drive train as well as
dangerous handling characteristics, which may lead to an accident
resulting in death or serious injury.
●Do not mix tires of different ma kes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Toyota.
●Do not mix differently constructed ti res (radial, bias-belted or bias-ply
tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first
adjusting the tire inflation pressure to the specified level. Otherwise, the
tire pressure warning light may not come on even if the tire inflation
pressure is low, or it may come on when the tire inflation pressure is
actually normal.