2014 TOYOTA TUNDRA warning light

4227-3. Do-it-yourself maintenance
●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.

4237-3. Do-it-yourself maintenance
7
Maintenance and care
■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.

455
8When trouble arises
8-1. Essential informationEmergency flashers .......... 456
If your vehicle has to be stopped in
an emergency ................. 457 8-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 458
If you think something is wrong .............................. 462
Fuel pump shut off system ............................ 463
If a warning light turns on or a warning buzzer
sounds ............................ 464
If a warning message is displayed (vehicles
with multi-information
display) ........................... 472
If you have a flat tire.......... 475
If the engine will not start ................................. 490
If the shift lever cannot be shifted from P............. 491
If the vehicle battery is discharged ...................... 493
If your vehicle overheats ... 496
If the vehicle becomes stuck ............................... 498

4628-2. Steps to take in an emergency
If you think something is wrong
●Fluid leaks under the vehicle.
(Water dripping from the air co nditioning after use is normal.)
● Flat-looking tires or uneven tire wear
● Engine coolant temperature gauge needle continually points higher
than normal.
● Voltmeter continually points higher or lower than normal
(if equipped)
● Engine oil pressure gauge continually points lower than normal
(if equipped)
● Vehicles without multi-information display:
Automatic transmission fluid temperature warning light comes on
Vehicles with multi-information display:
Automatic transmission fluid temperature warning message is dis-
played
● Changes in exhaust sound
● Excessive tire squeal when cornering
● Strange noises related to the suspension system
● Pinging or other noises related to the engine
● Engine misses, stumbling or running roughly
● Appreciable loss of power
● Vehicle pulls heavily to one side when braking
● Vehicle pulls heavily to one side when driving on a level road
● Loss of brake effectiveness, spon gy feeling, pedal almost touches
the floor
If you notice any of the follow ing symptoms, your vehicle proba-
bly needs adjustment or repair. Contact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

4648-2. 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.
(If equipped)
Low engine oil pressure warning light
Indicates that the engine oil pressure is too low
*2.
 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.

4658-2. Steps to take in an emergency
8
When trouble arises
SRS warning lightIndicates 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.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by your Toyota dealer
immediately.
Slip indicator light
Indicates a malfunction in:
• The VSC;
• The TRAC;
• The A-TRAC; or
• The AUTO LSD system.
 Have the vehicle inspected by your Toyota dealer
immediately.
(Flashes)
Cruise control indicator light
Indicates a malfunction in the cruise control system.
 Have the vehicle inspected by your Toyota dealer
immediately.
(If equipped)
BSM warning light
Indicates a malfunction in the Blind Spot Monitor.
 Have the vehicle inspected by your Toyota dealer
immediately.
Warning lightWarning light/Details/Actions

4668-2. Steps to take in an emergency
(If equipped)
Automatic transmission fluid temperature warning light
Comes on:
Indicates that the automatic transmission fluid tempera-
ture is too high.
 Stop the vehicle in a safe place, shift the shift lever to
P and wait until th e light goes off.
If the light goes off, you may start the vehicle again. If
the light does not go off, contact your Toyota dealer.
Flashes:
Indicates a malfunction in the automatic transmission sys-
tem.
 Have the vehicle inspected by your Toyota dealer
immediately.
Open door warning light (warning buzzer)*3
Indicates that one or more of the doors is not fully closed.
 Check that all the doors are closed.
Low fuel level warning light
Indicates remaining fuel is approximately 4.0 gal. (15 L,
3.3 Imp.gal.) or less
 Refuel the vehicle.
Seat belt reminder light (warning buzzer)*4
Warns the driver and/or front passenger to fasten their
seat belts
 Fasten the seat belt.
If the front passenger’s seat is occupied, the front
passenger’s seat belt also needs to be fastened to
make the warning light (warning buzzer) turn off.
(If equipped)
Master warning light
A buzzer sounds and the warning light comes on and
flashes to indicate that the master warning system has
detected a malfunction.
 P. 472
Warning lightWarning light/Details/Actions

4678-2. Steps to take in an emergency
8
When trouble arises
*1: Parking brake engaged warning buzzer:A buzzer will sound if the vehicle is driven at a speed of approximately
3 mph (5 km/h) or more.
*2: The light may come on when the oil level is extremely low. It is notdesigned to indicate low oil level, and the oil level must be checked using
the engine oil level dipstick.
Tire pressure warning light
When the light comes on:
Low tire inflation pressure such as • Natural causes ( P. 469)
• Flat tire ( P. 475)
 Adjust the tire inflation pressure to the specified
level.
The light will turn off after a few minutes. In case
the light does not turn off even if the tire inflation
pressure is adjusted, have the system checked by
your Toyota dealer.
When the light comes on after blinking for 1 minute:
Malfunction in the tire pressure warning system.
 Have the system checked by your Toyota dealer.
(If equipped)
Low windshield washer fluid warning light
Low level of washer fluid
 Fill the tank.
(U.S.A.)
Maintenance required reminder light
Indicates that maintenance is required according to the
driven distance on the maintenance schedule.
*5
Illuminates for about 3 seconds and then flashes for about
15 seconds approximately 4500 miles (7200 km) after the
maintenance data has been reset.
 If necessary, perform maintenance.
Comes on and remains on if the distance driven exceeds
5000 miles (8000 km) after the maintenance data has
been reset.
(The indicator will not work properly unless the mainte-
nance data has been reset.)
 Perform the necessary maintenance.
Please reset the maintenance data after the mainte-
nance is performed. ( P. 398)
Warning lightWarning light/Details/Actions