2015 TOYOTA TUNDRA engine

5219-1. Specifications
9
Vehicle specifications
■Gasoline quality standards
●Automotive manufacturers in the U.S.A., Europe and Japan have developed
a specification for fuel quality called the World-Wide Fuel Charter (WWFC),
which is expected to be applied worldwide.
● The WWFC consists of four categories that are based on required emission
levels. In the U.S., category 4 has been adopted.
● The WWFC improves air quality by lowering emissions in vehicle fleets, and
improves customer satisfaction through better performance.
■ E85 fuel (Flex-fuel vehicles)
●E85 fuel is a blend of 85% ethanol and 15% gasoline. However, E85 does
not necessarily contain 85% ethanol. For example, in cold climates the etha-
nol content of E85 may be reduced during the winter months to maintain
cold weather starting performance.
● E85 has less energy per gallon than gasoline, so you will need to fill your
fuel tank more frequently when using E85.
● The number of fuel stations that sell E85 fuel is limited. For more information
about fueling stations, please refer to the U.S. Department of Energy Web
site.
http://www.afdc.energy.gov/afdc/locator/stations/
■ Recommendation of the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline detergent additives to avoid build-
up of engine deposits.
● All gasoline sold in the U.S.A. contains minimum detergent additives to
clean and/or keep clean intake systems, per EPA’s lowest additives concen-
tration program.
● Toyota strongly recommends the use of Top Tier Detergent Gasoline. For
more information on Top Tier Detergent Gasoline and a list of marketers,
please go to the official website www.toptiergas.com.
■ Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.

5229-1. Specifications
■Non-recommendation of the use of blended gasoline (gasoline engine)
●If you use gasohol in your vehicle, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Non-recommendation of the use of gasoline containing MMT
Some gasoline contains an octane enhancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If this
happens, contact your Toyota dealer for service.
■ Toyota does not recommend blende d gasoline (Flex-fuel engine)
Do not use non-specified fuels such as the following.
● Fuels containing methanol.
● Fuels with more than 85% ethanol.
■ Toyota does not recommend the use of after-market fuel additives (Flex-
fuel engine)
Do not use any after-market fuel additives when repeatedly refueling with
E85, as some after-market fuel additives are not compatible with E85.
■ If your engine knocks
●Consult your Toyota dealer.
● You may occasionally notice light knocking for a short time while accelerat-
ing or driving uphill. This is normal and there is no need for concern.
●
Use only gasoline containing up to 15%
ethanol.
DO NOT use any flex-fuel or gasoline
that could contain more than 15% etha-
nol, including from any pump labeled
E30, E50, E85 (which are only some
examples of fuel containing more than
15% ethanol).
DO NOT use gasoline contain-
ing more than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)

5239-1. Specifications
9
Vehicle specifications
NOTICE
■Notice on fuel quality
● Do not use improper fuels. If improper fuels are used, the engine will be
damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Gasoline engine: Do not use gasohol other than the type previously
stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ When use of non-specified fuels (Flex-fuel engine)
The use of non-specified fuels will have a negative impact on starting and
driving performance, and will cause damage to the fuel system compo-
nents. Therefore, do not add fuels such as the following.
● Fuels containing methanol
● Fuels with more than 85% ethanol
■ Fuel-related poor driveability
If poor driveability is encountered after using a different type of fuel (poor
hot starting, vaporization, engine knocking, etc.), discontinue the use of that
type of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

5299-1. Specifications
9
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sure
Tire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which
a tire may be inflated, shown on the sidewall
of the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
*
that follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Production options
weight
The combined weight of installed regular pro-
duction options weighing over 5 lb. (2.3 kg) in
excess of the standard items which they
replace, not previously considered in curb
weight or accessory weight, including heavy
duty brakes, ride levelers, roof rack, heavy
duty battery, and special trim

5379-2. Customization
9
Vehicle specifications
■Automatic light off system* ( P. 188)
*: If equipped
■
Multi-information display ( P. 92)
*: Vehicles with navigation system
■
Illumination ( P. 353)
■Seat Belt Reminder Buzzer ( P. 466)
FunctionDefault settingCustomized
setting
Light sensor sensitivity Level 3 Level 1 to 5—O O
Time elapsed before
headlights automatically
turn off after doors are
closed 30 seconds0 seconds
—O O60 seconds
90 seconds
123
FunctionDefault settingCustomized
setting
Turn by Turn navigation*On OffOOO
Language EnglishFrenchOOOSpanish
Units miles
(MPG US) km
(L/100 km)
OOO
123
FunctionDefault settingCustomized setting
Time elapsed before lights
turn off 15 seconds7.5 seconds—O O30 seconds
Operation after the engine
is off On Off
—— O
Operation when the doors
are unlockedOn Off—— O
123
FunctionDefault settingCustomized
setting
Vehicle speed linked seat
belt reminder buzzerOnOff—— O
123

5389-2. Customization
■Vehicle customization
●When the speed-detecting automatic door lock function and shift position
linked door locking function (shifting gears to a position other than P locks
all doors) are both on, the door lock operates as follows.
• When shifting the shift lever to any position other than P, all the doors will be locked.
• If the vehicle is started with all the doors locked, the speed-detecting auto- matic door lock function would not operate.
• If the vehicle is started with any the door unlocked, the speed-detecting
automatic door lock function will operate.
● When the doors remain closed after unlocking the doors and the automatic
door lock function (Time elapsed before the automatic door lock function is
activated if a door is not opened after being unlocked) activates, the signals
will be generated in accordance with operation signal (buzzers) and the
operation signal (emergency flashers) settings.
CAUTION
■During customization
As the engine needs to be running during customization, ensure that the
vehicle is parked in a place with adequate ventilation. In a closed area such
as a garage, exhaust gases including harmful carbon monoxide (CO) may
collect and enter the vehicle. This may lead to death or serious health haz-
ard.
NOTICE
■During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

556
■Cargo weight rating
EngineDriveCabBedGradePassenger
Cargo
Weight Rating
lbskg
3UR-FE2WD
RegularLongSR5
31320599
3UR-FE
3UR-FBE4WD31260572
1UR-FE2WD
Double
StandardSR56505229
4WD6415188
3UR-FE2WDStandardSR56490222
Limited5615279
LongSR56465211
3UR-FE
3UR-FBE4WDStandardSR56400181
Limited5545247
LongSR56380172
1UR-FE2WD
Crew MaxShort
SR56420191
4WD6320145
3UR-FE2WD
SR56385175
Limited5520236
Plati-num5525238
3UR-FE
3UR-FBE4WD
SR56305138
Limited5425193
Plati-
num5430195

558
■GAWR and GVWR
Regular Cab models
*:The model code is indicated on the Certification Label. (P. 5 1 0)
Model
code
*EngineDriving
systemBed
typeGAWRGVWRFrontRear
USK51L-
THTSKA 3UR-FE2WD
Long
3900 lb.
(1770 kg)4150 lb.
(1885 kg)7000 lb.
(3180 kg)
USK56L-
THTSKA 4WD
4000 lb.
(1815 kg)4150 lb.
(1885 kg)7200 lb.
(3270 kg)
USK56L-
THTSGA 3UR-FBE 4WD
4000 lb.
(1815 kg)4150 lb.
(1885 kg)7200 lb.
(3270 kg)