2016 TOYOTA TUNDRA check engine

4437-3. Do-it-yourself maintenance
7
Maintenance and care
Checking and replacing fuses
Turn the engine switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the
cover off.
Under the instrument panel
Remove the cover.
Remove the fuse with the pull-
out tool.
Only type A fuse can be removed
using the pullout tool.
If any of the electrical components do not operate, a fuse may
have blown. If this happens, check and replace the fuses as nec-
essary.
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2
3

4768-2. Steps to take in an emergency
*3: Driver’s seat belt buzzer:The driver’s seat belt buzzer sounds to alert the driver that his or her seat
belt is not fastened. Once the engine switch is turned to the “ON” or
“START” position mode, the buzzer sounds for 6 seconds. If the vehicle
reaches a speed of 12 mph (20 km/h), the buzzer sounds once. If the seat
belt is still unfastened after 30 seconds, the buzzer will sound intermittently
for 10 seconds. Then, if the seat belt is still unfastened, the buzzer will
sound in a different tone for 20 more seconds.
Front passenger’s seat belt buzzer:
The front passenger’s seat belt buzzer sounds to alert the front passenger
that his or her seat belt is not fastened. The buzzer sounds once if the
vehicle reaches a speed of 12 mph (20 km/h). If the seat belt is sill unfas-
tened after 30 seconds, the buzzer will sound intermittently for 10 seconds.
Then, if the seat belt is still unfastened, the buzzer will sound in a different
tone for 20 more seconds.
■ SRS warning light
This warning light system monitors the airbag sensor assembly, front impact
sensors, side impact sensors (front door), side impact sensors (front), side
impact sensors (rear), driver’s seat posit ion sensor, driver’s seat belt buckle
switch, front passenger occupant classification system (ECU and sensors),
“AIR BAG ON” indicator light, “AIR BAG OFF” indicator light, front passen-
ger’s seat belt buckle switch, seat belt pretensioners assemblies, airbags,
interconnecting wiring and power sources. ( P. 40)
■ Front passenger detection sensor, seat belt reminder and warning
buzzer
● If luggage is placed on the front passenger seat, the front passenger de\
tec-
tion sensor may cause the warning light to flash and the warning buzzer to
sound even if a passenger is not sitting in the seat.
● If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.
■ If the malfunction indicator la mp comes on while driving
First check the following:
● Is the fuel tank empty?
If it is, fill the fuel tank immediately.
● Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving trips.
If the light does not go off even after several trips, contact your Toyota dealer
as soon as possible.

4778-2. Steps to take in an emergency
8
When trouble arises
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Push-
ing the tire pressure warning reset switch will not turn off the tire pressure
warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks and tire inflat ion pressure changes caused by tem-
perature. In this case, adjusting the ti re inflation pressure will turn off the
warning light (after several minutes).
■When a tire is replaced with a spare tire
The temporary spare tire is not equipped with a tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire has been replaced with the temporary
spare tire. Replace the temporary spare tire with the repaired tire and
adjust the tire inflation pressure. The tire pressure warning light will go off
after several minutes.
■Conditions that the tire pressure warning system may not function
properly
 P. 4 2 8
■If the tire pressure warning light frequently comes on after blinking
for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1
minute when the engine switch is turned to “ON” position, have it checked
by your Toyota dealer.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an
audio sound.

5068-2. Steps to take in an emergency
Add coolant if necessary.
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine to check that the radiator cooling fan operates and
to check for coolant leaks from the radiator or hoses.
If the fan is not operating:
Stop the engine immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Toyota dealer.
5
CAUTION
■When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
● If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
● Keep hands and clothing away from the fans, etc., while the engine is run-
ning.
● Do not loosen the radiator cap and the coolant reservoir cap while the
engine and radiator are hot.
High temperature steam or coolant could spray out.
NOTICE
■When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.
■ To prevent damage to the cooling system
Observe the following precautions:
● Avoid contaminating the coolant with foreign matter (such as sand or dust,
etc.).
● Do not use any coolant additives.
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5219-1. Specifications
9
Vehicle specifications
*: The engine oil capacity is a reference quantity to be used when changingthe engine oil. Warm up and turn off the engine, wait more than 5 minutes,
and check the oil level on the dipstick.
Lubrication system
Oil capacity
(Drain and refill - reference
*)
With filter
Without filter 7.9 qt. (7.5 L, 6.6 Imp.qt.)
7.5 qt. (7.1 L, 6.2 Imp.qt.)

5249-1. Specifications
*: Your Toyota vehicle is filled with “Toyota Genuine Differential Gear Oil” atthe factory. Use Toyota approved “Toyota Genuine Differential Gear Oil” or
an equivalent oil of matching quality to satisfy the above specification.
Please contact your Toyota dealer for further details.
Electrical system
Battery
Open voltage at 68 F
(20 C):12.6  12.8 V Fully charged
12.2
 12.4 V Half charged
11 . 8
 12.0 V Discharged
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A max.
Differential
Oil
capacity
Front (4WD models) 2.2 qt. (2.05 L, 1.8 Imp.qt.)
Rear
1UR-FE engine4.9 qt. (4.60 L, 4.0 Imp.qt.)
3UR-FE
and
3UR-FBE
engines
Regular Cab
models3.8 qt. (3.60 L, 3.2 Imp.qt.)
Double Cab
models
With standard bed
3.8 qt. (3.60 L, 3.2 Imp.qt.)
With long bed
4.0 qt. (3.75 L, 3.3 Imp.qt.)
CrewMax
models
2WD models
4.0 qt. (3.75 L, 3.3 Imp.qt.)
4WD models
3.8 qt. (3.60 L, 3.2 Imp.qt.)
Oil type and viscosity*
Toyota Genuine Differential
Gear Oil LT 75W-85 GL-5 or
equivalent

570What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your keys, new genuine keys can be made by your Toyota
dealer. (P. 98)
●Is the wireless key battery weak or depleted? ( P. 441)
●The function may not operate properly due to the condition of the radio
wave. (P. 102)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (P. 104)
●Is the shift lever in P? ( P. 182)
●Is the battery discharged? ( P. 502)
●Is the engine switch in the “ON” position?
If you cannot release the shift lever by depressing the brake pedal with the
engine switch in the “ON” position. ( P. 500)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
If you think something is wrong The engine does not start
The shift lever cannot be shifted from P even if you depress
the brake pedal

575Alphabetical index
Camper information ................ 562
Card holder .............................. 368
Care................................... 400, 402Aluminum wheels.................. 400
Exterior ................................. 400
Interior................................... 402
Seat belts .............................. 403
Cargo capacity ......................... 156
Cargo lamp Light switch ........................... 363
Replacing light bulbs............. 459
Wattage ................................ 528
CD player .................................. 273
Certification label ............ 161, 519
Chains....................................... 244
Child restraint system ............... 56
Booster seats, definition ......... 57
Booster seats, installation ....... 67
Convertible seats, definition.... 57
Convertible seats, installation ...................... 65, 66
Front passenger occupant
classification syst em............. 50
Infant seats, definition ............. 57
Infant seats, installation .......... 65
Installing CRS with LATCH anchors ............ 63
Installing CRS with seat
belts ...................................... 65
Installing CRS with top tether strap .............. 68
Child safety ................................ 55 Airbag precautions .................. 42
Battery precautions ............... 504
Child restraint system ............. 56 How your child should
wear the seat belt ................. 34
Installing child restraints ......... 60
Moon roof precautions .......... 143
Power back window
precautions......................... 140
Power window lock switch .... 134
Power window precautions ... 136
Rear door child-protector ...... 104
Removed wireless remote
control battery
precautions......................... 442
Seat belt extender
precautions........................... 37
Seat belt precautions .............. 59
Seat heater precautions ....... 359
Child-protectors ...................... 104
Cleaning ........................... 400, 402 Aluminum wheels ................. 400
Exterior ................................. 400
Interior .................................. 402
Seat belts.............................. 403
Clock......................................... 383
Compass .................................. 395
Condenser................................ 419
Console box ............................. 367
Consumption screen................. 91
Coolant ..................................... 417 Capacity................................ 523
Checking............................... 417
Preparing and checking before winter ...................... 243
Cooling system........................ 417 Engine overheating............... 505
CRS ............................................. 56
Cruise control .......................... 202
Cup holders ............................. 374
Curtain shield airbags............... 39
Customizable features ............ 543
C