2020 TOYOTA TUNDRA differential

1914-1. Before driving
4
Driving
NOTICE
■When driving the vehicle
● Do not depress the accelerator and brake pedals at the same tim e during
driving, as this may restrain the engine output.
● Do not use the accelerator pedal or depress the accelerator and brake
pedals at the same time to hold the vehicle on a hill.
■ When parking the vehicle
Always set the parking brake, and shift the shift lever to P. F ailure to do so
may cause the vehicle to move or the vehicle may move suddenly if the
accelerator pedal is accidentally depressed.
■ Avoiding damage to vehicle parts
● Do not turn the steering wheel fully in either direction and ho ld it there for
an extended period of time.
Doing so may damage the power steering pump.
● When driving over bumps in the road, drive as slowly as possibl e to avoid
damaging the wheels, underside of the vehicle, etc.
■ If you get a flat tire while driving
A flat or damaged tire may cause the following situations. Hold the steering
wheel firmly and gradually depress the brake pedal to slow down the vehi-
cle.
● It may be difficult to control your vehicle.
● The vehicle will make abnormal sounds or vibrations.
● The vehicle will lean abnormally.
Information on what to do in case of a flat tire ( P. 504)
■ When encountering flooded roads
Do not drive on a road that has flooded after heavy rain, etc. Doing so may
cause the following serious damage to the vehicle:
● Engine stalling
● Short in electrical components
● Engine damage caused by water immersion
In the event that you drive on a flooded road and the vehicle i s flooded, be
sure to have your Toyota dealer check the following:
● Brake function
● Changes in quantity and quality of oil and fluid used for the engine, trans-
mission, transfer (4WD models) differentials, etc.
● Lubricant condition for the propeller shaft, bearings and suspe nsion joints
(where possible), and the function of all joints, bearings, etc .

2134-1. Before driving
4
Driving
■Break-in schedule
If your vehicle is new or equipped with any new power train com ponents
(such as an engine, transmission, differential or wheel bearing ), Toyota rec-
ommends that you do not tow a trailer until the vehicle has bee n driven for
over 500 miles (800 km).
After the vehicle has been driven for over 500 miles (800 km), you can start
towing. However, for the next 500 miles (800 km), drive the veh icle at a speed
of less than 50 mph (80 km/h) when towing a trailer, and avoid full throttle
acceleration.
■ Maintenance
●If you tow a trailer, your vehicle will require more frequent m aintenance due
to the additional load. (See “Owner’s Warranty Information Book let” or
“Scheduled Maintenance Guide”/“Owner’s Manual Supplement”.)
● Retighten the fixing bolts of the towing ball and bracket after approximately
600 miles (1000 km) of trailer towing.
■ If trailer sway occurs
One or more factors (crosswinds, passing vehicles, rough roads, etc.) can
adversely affect handling of your vehicle and trailer, causing instability.
● If trailer swaying occurs:
• Firmly grip the steering wheel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering wheel.
• Begin releasing the accelerator pedal immediately but very gra dually to
reduce speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle
and trailer should stabilize. (if enabled, Trailer Sway Control can also help to
stabilize the vehicle and trailer.)
● After the trailer swaying has stopped:
• Stop in a safe place. Get all occupants out of the vehicle.
• Check the tires of the vehicle and the trailer.
• Check the load in the trailer.
Make sure the load has not shifted.
Make sure the tongue weight is appropriate, if possible.
• Check the load in the vehicle. Make sure the vehicle is not overloaded after occupants get in.
If you cannot find any problems, the speed at which trailer swaying occurred
is beyond the limit of your particular vehicle-trailer combinat ion.
Drive at a lower speed to prevent instability. Remember that sw aying of the
towing vehicle-trailer increases as speed increases.

3384-6. Driving tips
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 d amage.
● Water entering the automatic transmission will cause deteriorat ion in shift
quality, locking up of your transmission accompanied by vibrati on, 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 firm ness. Drive
slowly and avoid deep water.
■ Inspection after off-road driving
● Sand and mud that has accumulated in brake drums and around bra ke
discs may affect braking efficiency and may damage brake system compo-
nents.
● Always perform a maintenance inspection after each day of off-r oad driv-
ing that has taken you through rough terrain, sand, mud, or wat er. For
scheduled maintenance information, refer to the “Scheduled Main tenance
Guide” or “Owner’s Manual Supplement”.

5448-1. Specifications
*: Your Toyota vehicle is filled with “Toyota Genuine Differential Gear Oil” at
the 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.
*: The fluid capacity is the quantity of reference. If replacement is necessary, contact your Toyota dealer.
Differential
Oil
capacity
Front (4WD models) 2.2 qt. (2.05 L, 1.8 Imp.qt.)
Rear
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
Automatic transmission
Fluid capacity*11.7 qt. (11.1 L, 9.8 Imp.qt.)
Fluid type Toyota Genuine ATF WS
NOTICE
■Transmission fluid type
Using transmission fluid other than “Toyota Genuine ATF WS” may cause
deterioration in shift quality, locking up of the transmission accompanied by
vibration and, ultimately, damage to the vehicle’s transmission .

598Alphabetical index
Condenser ................................ 420
Console box ............................. 363
Coolant ..................................... 418Capacity ................................ 543
Checking ............................... 418
Preparing and checking before winter....................... 331
Cooling system ........................ 418 Engine overheating ............... 527
CRS ............................................. 59
Cruise control
Cruise control........................ 294
Dynamic radar cruise control ...................... 280
Cup holders.............................. 370
Curtain shield airbags ............... 41
Customizable features ............ 562
Daytime running light system .................................... 237
Deck hooks .............................. 377
Defogger
Back window ................. 342, 349
Outside rear view mirrors ........................ 342, 349
Windshield .................... 342, 349
Differential ................................ 544
Dimensions .............................. 534
Dinghy towing .......................... 216
Display
Drive information................... 111
Dynamic radar cruise control ...................... 280
LDA (Lane Departure Alert)........ 272
Multi-information display ....... 110
Trip information ..................... 110
Warning message ................. 491
Do-it-yourself maintenance .... 412 Door lock .................................. 127
Doors .................................... 127
Key ....................................... 127
Smart key system ................. 128
Wireless remote control ........ 128
Doors ........................................ 127 Automatic door locking
and unlocking system......... 132
Door glasses......................... 172
Door lock .............................. 130
Open door warning message............................. 492
Outside rear view mirrors ..... 167
Rear door child-protector ...... 131
Side doors ............................ 127
Driver’s seat position
memory .................................. 152
Drive-Start Control .................. 185
Driving ...................................... 184 Break-in tips.......................... 186
Correct driving posture ........... 32
Driving assist system ............ 320
Procedures ........................... 184
Winter drive tips .................... 331
Dynamic radar
cruise control ........................ 280 Constant speed control mode ...................... 285
Vehicle-to-vehicle distance control mode ........ 287
EDR (Event data recorder)........ 11
Emergency, in case of If the engine will not start ...... 519
If the vehicle is trappedin rising water ..................... 475
If the vehicle has discharged battery ................................ 523
If the warning buzzer
sounds................................ 483
If the warning light turns on ....................................... 483
D
E

602Alphabetical index
Map holder ............................... 366
Master warning light........ 484, 491
MeterIndicators .............................. 102
Instrument panel light control................................. 107
Meters ................................... 105
Multi-information display ....... 110
Warning lights ....................... 101
Mirrors
Inside rear view mirror .......... 164
Outside rear view mirror defoggers ......... 342, 349
Outside rear view mirrors...... 167
Vanity mirrors........................ 378
Moon roof ................................. 179
Door lock linked moon roof operation ........... 180
Jam protection function......... 179
Operation .............................. 179
MP3 disc
*
Multi-information display ........ 110 Customizing vehicle features .............................. 562
Drive information................... 111
Dynamic radar
cruise control ...................... 280
LDA
(Lane Departure Alert)........ 272
Settings ................................. 114
Trip information ..................... 110
Warning message ................. 491
Noise from under vehicle............ 8
Odometer.......................... 105, 107
Off-road precaution s ............... 335
Oil
Engine oil .............................. 541
Differential oil ........................ 544
Transfer oil ............................ 545 Opener
Hood ..................................... 414
Outer foot lights
Location ................................ 357
Replacing light bulbs ............ 468
Wattage ................................ 548
Outside rear view mirrors ....... 167
Adjusting and folding ............ 167
Blind spot monitor ................. 305
Mirror position memory ......... 152
Outside rear view mirror defoggers ......... 342, 349
Outside temperature
display.................................... 105
Overhead console ................... 369
Overheating ............................. 527
Parking assist sensors (intuitive parking assist)....... 298
Parking brake........................... 233 Operation .............................. 233
Parking brake engaged
warning buzzer ................... 483
Parking brake engaged
warning message ............... 493
Parking lights........................... 234 Light switch ........................... 234
Replacing light bulbs .... 461, 468
Wattage ................................ 548
PCS
(Pre-Collision System).......... 259 Pre-collision brake assist ...... 260
Pre-collision braking ............. 260
PCS warning......................... 260
Warning light......................... 486
Warning message................. 491
Pen holder ................................ 367
Personal lights......................... 358 Light switch ........................... 357
Wattage ................................ 548
Power back window ................ 176
Power easy access system .... 152
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