2013 TOYOTA TUNDRA engine

254 2-4. Using other driving systems
■When the TRAC OFF indicator light comes on even if the VSC OFF
switch has not been pressed
TRAC system cannot be operated. Contact your Toyota dealer.
■ Automatic reactivation of TRAC, A-TRAC, VSC and Trailer Sway Con-
trol
Turning the engine switch off after turning off the TRAC, A-TRAC, VSC and
Trailer Sway Control systems will automatically re-enable them.
■ Sounds and vibrations caused by the ABS, TRAC, A-TRAC, VSC,
Trailer Sway Control and Brake Assist system
● A sound may be heard from the engine compartment when the engine is
started and just after the vehicle begins to move. This sound does not
indicate that a malfunction has occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS is activated.
• The brake pedal may move down slightly after the ABS is activated.
■ If the brake system overheats
TRAC or A-TRAC will cease operation, and the slip indicator will change
from flashing to being on continuously to alert the driver. Stop the vehicle in
a safe place. (There is no problem with continuing normal driving.)
■ Shifting to 4L
VSC and Trailer Sway Control are automatically turned off.

261
2-5. Driving information
2
When driving
NOTICE
■
To prevent the water damage
●Take all necessary safety measures to ensure that water damage to the
engine or other components does not occur.
● Water entering the engine air intake will cause severe engine damage.
● Water entering the automatic transmission will cause deterioration in shift
quality, locking up of your transmission accompanied by vibration, and ulti-
mately damage.
● Water can wash the grease from wheel bearings, causing rusting and pre-
mature failure, and may also enter the differentials, transmission and
transfer case, reducing the gear oil’s lubricating qualities.
■ When you drive through water
If driving through water, such as when crossing shallow streams, first check
the depth of the water and the bottom of the river bed for firmness. Drive
slowly and avoid deep water.
■ Inspection after off-road driving
●Sand and mud that has accumulat ed in brake drums and around brake
discs may affect braking efficiency and may damage brake system compo-
nents.
● Always perform a maintenance inspection after each day of off-road driv-
ing that has taken you through rough terrain, sand, mud, or water. For
scheduled maintenance information, refer to the “Scheduled Maintenance
Guide” or “Owner’s Manual Supplement”.

268
2-5. Driving information
Winter driving tips
Carry out the necessary preparations and inspections before driving
the vehicle in winter. Always drive the vehicle in a manner appropri-
ate to the prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropriate to the prevailing outside tem-
peratures.
• Engine oil
• Engine coolant
• Washer fluid
● Have a service technician inspect the level and specific grav-
ity of battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set
of tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains
match the size of the tires.
■Before driving the vehicle
Perform the following according to the driving conditions.
●Do not try to forcibly open a window, scrape an outside rear
view mirror surface or move a wiper or outside rear view mir-
ror that is frozen. Pour warm water over the frozen area to
melt the ice. Wipe away the water immediately to prevent it
from freezing.
● To ensure proper operation of th e climate control system fan,
remove any snow that has accumulated on the air inlet vents
in front of the windshield.
● Remove any ice that has accumu lated on the vehicle chassis.
● Periodically check for and remove any excess ice or snow
that may have accumulated in the wheel well or on the
brakes.

269
2-5. Driving information
2
When driving
Selecting tire chains
Use the correct tire chain size when mounting the snow chains.
Chain size is regulated for each tire size. Side chain
0.2 in. (5 mm) in diameter
Cross chain
0.25 in. (6.3 mm) in diameter
■When driving the vehicle
Accelerate the vehicle slowly and drive at a reduced speed suit-
able to road conditions.
■ When parking the vehicle
Park the vehicle and move the shift lever to P without setting the
parking brake. The parking brak e may freeze up, preventing it
from being released. If necessary , block the wheels to prevent
inadvertent sliding or creeping.
■ Refueling (Flex-fuel vehicles)
Observe the following precautions when switching fuels, in order
to maintain starting and driving performance.
●Do not change fuels when the fuel level is 1/4 or less.
● Always add at least 2.6 gal. (10 L) of fuel.
● After fulling up with fuel, warm up the engine or drive the vehi-
cle for at least 5 minutes or 7 miles (11 km).
● Do not accelerate rapidly immediately after refueling.

277
2-5. Driving information
2
When driving
GCWR, TWR, Unbraked TWR, Fifth wheel and Gooseneck towing TWR
Confirm that the gross trailer weight, gross combination weight, gross
vehicle weight, gross axle weight and tongue weight are all within the
limits.
■
GCWR
* and TWR*
Regular Cab models
*: These models meet the tow-vehicle trailering requirement of SAE
International per SAE J2807.
Model code*1EngineDriving
systemBed
typeGCWRTWR
GSK50L-TRADKA 4.0L V6
(1GR-FE) engine 2WDStandard
10000 lb.
(4535 kg) 4900 lb.
(2220 kg)
GSK51L-THADKA Long 4800 lb.
(2175 kg)
UPK50L-TRTDKA 4.6L V8
(1UR-FE) engine
2WDStandard
12500 lb.
(5670 kg)
*27100 lb.
(3220 kg)*2
14000 lb.
(6350 kg)*38600 lb.
(3900 kg)*3
USK51L-THTDKA
5.7L V8
(3UR-FE) engine Long
14000 lb.
(6350 kg)
*28400 lb.
(3810 kg)*2
16000 lb.
(7255 kg)*310400 lb.
(4715 kg)*3
USK55L-TRTDKA
4WDStandard 14000 lb.
(6350 kg)
*28200 lb.
(3715 kg)*2
15500 lb.
(7030 kg)*39700 lb.
(4395 kg)*3,4
15000 lb.
(6800 kg)*3,49200 lb.
(4170 kg)*3,5
USK56L-THTDKA Long14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
16000 lb.
(7255 kg)*310100 lb.
(4580 kg)*3

278 2-5. Driving information
*1: The model code is indicated on the Certification Label. (P. 672)*2: Without towing package*3: With towing package*4: P225/70R18 or P275/65R18 tires*5: P275/55R20 tires
Double Cab models
USK55L-TRTDGA5.7L V8
(3UR-FBE) engine 4WDStandard 14000 lb.
(6350 kg)
*28200 lb.
(3715 kg)*2
15500 lb.
(7030 kg)*39700 lb.
(4395 kg)*3,4
15000 lb.
(6800 kg)*3,49200 lb.
(4170 kg)*3,5
USK56L-THTDGA Long14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
16000 lb.
(7255 kg)*310100 lb.
(4580 kg)*3
Model code*1EngineDriving
systemBed
typeGCWRTWR
GSK51L-CRASKA 4.0L V6
(1GR-FE) engine
2WD
Standard 10000 lb.
(4535 kg) 4500 lb.
(2040 kg)
UPK51L-CRTSKA 4.6L V8
(1UR-FE) engine 12500 lb.
(5670 kg)
*26700 lb.
(3035 kg)*2
14000 lb.
(6350 kg)*38200 lb.
(3715 kg)*3
UPK56L-CRTSKA 4WD12500 lb.
(5670 kg)
*26400 lb.
(2900 kg)*2
14000 lb.
(6350 kg)*37900 lb.
(3580 kg)*3
Model code*1EngineDriving
systemBed
typeGCWRTWR

279
2-5. Driving information
2
When driving
*1: The model code is indicated on the Certification Label. (P. 672)*2: Without towing package*3: With towing package
USK51L-CRTSKA
5.7L V8
(3UR-FE) engine 2WD
Standard 14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
16000 lb.
(7255 kg)*310100 lb.
(4580 kg)*3
USK51L-CRTLKA 14000 lb.
(6350 kg)
*28100 lb.
(3670 kg)*2
15900 lb.
(7210 kg)*310000 lb.
(4535 kg)*3
USK52L-CHTSKA Long16000 lb.
(7255 kg) 10000 lb.
(4535 kg)
USK56L-CRTSKA
4WDStandard 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39700 lb.
(4395 kg)*3
USK56L-CRTLKA 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39800 lb.
(4445 kg)*3
USK57L-CHTSKA Long16000 lb.
(7255 kg) 9800 lb.
(4445 kg)
USK56L-CRTSGA 5.7L V8
(3UR-FBE) engine 4WDStandard 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39700 lb.
(4395 kg)*3
USK56L-CRTLGA 14000 lb.
(6350 kg)
*27800 lb.
(3535 kg)*2
16000 lb.
(7255 kg)*39800 lb.
(4445 kg)*3
USK57L-CHTSGA Long16000 lb.
(7255 kg) 9800 lb.
(4445 kg)
Model code*1EngineDriving
systemBed
typeGCWRTWR

280 2-5. Driving information
CrewMax models
Model code*1EngineDriving
systemBed
typeGCWRTWR
UPK51L-PSTSKA 4.6L V8
(1UR-FE) engine 2WD
Short 12500 lb.
(5670 kg)
*26600 lb.
(2990 kg)*2
14000 lb.
(6350 kg)*38100 lb.
(3670 kg)*3
UPK56L-PSTSKA 4WD12500 lb.
(5670 kg)
*26200 lb.
(2810 kg)*2
14000 lb.
(6350 kg)*37700 lb.
(3490 kg)*3
USK51L-PSTSKA
5.7L V8
(3UR-FE) engine 2WD
14000 lb.
(6350 kg)
*28000 lb.
(3625 kg)*2
15900 lb.
(7210 kg)*39900 lb.
(4490 kg)*3
USK51L-PSTLKA 14000 lb.
(6350 kg)
*27900 lb.
(3580 kg)*2
15400 lb.
(6985 kg)*39300 lb.
(4215 kg)*3
USK56L-PSTSKA
4WD14000 lb.
(6350 kg)
*27700 lb.
(3490 kg)*2
15300 lb.
(6940 kg)*39000 lb.
(4080 kg)*3
USK56L-PSTLKA 14000 lb.
(6350 kg)
*27700 lb.
(3490 kg)*2
15300 lb.
(6940 kg)*39000 lb.
(4080 kg)*3