2020 TOYOTA TUNDRA maintenance

4897-2. Steps to take in an emergency
7
When trouble arises
WARNING
■If both the ABS and the brake s ystem warning lights remain on
Stop your vehicle in a safe place immediately and contact your To y o t a
dealer. The vehicle will become extremely unstable during braki ng, and the
ABS system may fail, which could cause an accident resulting in death or
serious injury.
■ If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a
loss of vehicle control and result in death or serious injury.
● Stop your vehicle in a safe place as soon as possible. Adjust the tire infla-
tion pressure immediately.
● If the tire pressure warning light comes on even after tire inf lation pressure
adjustment, it is probable that you have a flat tire. Check the tires. If a tire
is flat, change it with the spare tire and have the flat tire repaired by the
nearest Toyota dealer.
● Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you
could lose control of the steering wheel or the brakes.
■ If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
■
Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly
when cold and inflated to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or tire inflation p ressure
label (tire and load information label). (If your vehicle has t ires of a dif-
ferent size than the size indica ted on the vehicle placard or tire inflation
pressure label [tire and load information label], you should de termine
the proper tire inflation p ressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire
pressure monitoring system (TPMS -tire pressure warning system) that
illuminates a low tire pressure telltale (tire pressure warning light) when
one or more of your tires is significantly under-inflated. Acco rdingly,
when the low tire pressure telltale (tire pressure warning ligh t) illumi-
nates, you should stop and check your tires as soon as possible , and
inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat and can lead to tire failure.
Under-inflation also reduces fuel efficiency and tire tread lif e, and may
affect the vehicle’s handl ing and stopping ability.

4947-2. Steps to take in an emergency
Indicates that all maintenance according to the
driven distance on the maintenance schedule
*
should be performed soon.
Comes on approximately 4500 miles (7200 km)
after the message has been reset.
If necessary, perfo rm maintenance.
Indicates that all maintenance is required to cor-
respond to the driven distance on the mainte-
nance schedule
*.
Comes on approximately 5000 miles (8000 km)
after the message has been reset.
(The indicator will not work properly unless the
message has been reset.)
 Perform the necessary maintenance.
Please reset the message after the mainte-
nance is performed. ( P. 407)
Indicates a malfunction in the tire pressure warn-
ing system.
The tire pressure warning light comes on after
flashing for 1 minute.
 Have the vehicle inspected by your Toyota
dealer.
Indicates a malfunction in the cruise control sys-
tem.
• Press the “ON-OFF” button once to deacti-
vate the system, and then press the button
again to reactivate the system.
• A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates a malfunction in the Brake Override
System.
A buzzer also sounds.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the accelerator and brake pedals
are being depressed simultaneously, and the
Brake Override System is operating. ( P. 185)
 Release the accelerator pedal and depress
the brake pedal.
Warning messageDetails/Actions
Maintenance
Required Soon
Maintenance Required
Visit Your Dealer
Tire Pressure Warning System
Malfunction, Visit Your Dealer
(Flashes
and then
remains on)
Cruise Control Malfunction
Visit Your Dealer
Brake Override Malfunction
Visit Your Dealer
Accelerator and Brake Pedals
Pressed
Simultaneously

4997-2. Steps to take in an emergency
7
When trouble arises
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your veh icle.
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displaye d even if
vehicle-to-vehicle distance decreases:
● When your vehicle and the vehicle ahead are traveling at the sa me speed or
the vehicle ahead is traveling more quickly than your vehicle
● When the vehicle ahead is traveling at a very low speed
● Immediately after cruise control speed is set
● At the instant the accelerator pedal is depressed
■
Conditions that the tire pressure warning system may not functi on
properly
 P. 4 3 2
Indicates that an internal switch failure of trailer
brake control system, an over current detected by
trailer brake control system.
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that an internal microprocessor error,
output circuit to trailer brakes unintended current,
or manual brake output slider is stuck or broken
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the output circuit has reverse volt-
age, or the internal trailer brake control system
temperature is too high.
Check trailer wiring issue, check trailer
connection. If there is still a problem, have
the vehicle inspected by your Toyota dealer
immediately.
Warning messageDetails/Actions
Trailer Brake Error.
If Towing,
Come to a Safe Stop
Contact dealer.
Trailer Wiring,
Type, or Connection
fault.
See Owner’s manual.

533
8Vehicle specifications
8-1. SpecificationsMaintenance data (fuel, oil level, etc.) .......... 534
Fuel information ................ 549
Tire information ................. 552
8-2. Customization Customizable features ...... 562
8-3. Items to initialize Items to initialize ............... 572

5348-1. Specifications
Maintenance data (fuel, oil level, etc.)
2WD models
*1: Unladen vehicle
*2: P255/70R18 tires
*3: P275/65R18 tires
*4: P275/55R20 tires
Dimensions
Cab typeDouble Cab CrewMax
Bed typeStandardLongShort
Overall length228.9 in. (5815
mm) 247.8 in.
(6295 mm) 228.9 in.
(5815 mm)
Overall width 79.9 in. (2030 mm)
Overall
height
*1
78.3 in.
(1990 mm)
*278.1 in.
(1985 mm)
*2
78.1 in.
(1985 mm)
*3,*478.0 in.
(1980 mm)
*3,*4
Wheelbase 145.6 in. (3700
mm) 164.5 in.
(4180 mm) 145.6 in.
(3700 mm)
Front tread 67.9 in. (1725 mm)
Rear tread67.9 in. (1725 mm)

5728-3. Items to initialize
Items to initialize
The following items must be initialized for normal system opera-
tion after such cases as the battery being reconnected, or main -
tenance being performed on the vehicle:
ItemWhen to initializeReference
Moon roof
• After reconnecting or chang- ing the battery
• After changing a fuse
P. 181
Message indicating mainte-
nance is required• After the maintenance is per- formedP. 407
Tire pressure warning sys-
tem• When rotating the tires.
• When changing the tire size.P. 428

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

599Alphabetical index
If the warning message is displayed......................... 491
If you have a flat tire ............. 504
If you lose your keys ............. 123
If you think something
is wrong .............................. 481
If your vehicle becomes
stuck ................................... 530
If your vehicle has to be stopped in an emergency ... 473
If your vehicle needs to be towed ......................... 476
If your vehicle overheats ....... 527
Emergency flashers ................ 472
Engine “ACC” position ...................... 217
Compartment ........................ 415
Engine switch........................ 217
Hood ..................................... 414
How to start the engine ......... 217
Identification number ............ 539
If the engine will not start ...... 519
Ignition switch
(engine switch) ................... 217
Immobilizer system ................. 85
Overheating .......................... 527
Engine coolant ......................... 418 Capacity ................................ 543
Checking ............................... 418
Preparing and checking before winter....................... 331
Engine coolant temperature gauge...................................... 105
Engine immobilizer system ...... 85
Engine oil ................................. 416
Capacity ................................ 541
Checking ............................... 416
Preparing and checking before winter....................... 331
Engine oil maintenance
data ......................................... 407
Engine switch (ignition switch)..................... 217 Engine switch light
(ignition switch light) ............ 357
Event data recorder (EDR)........ 11
Flat tire ..................................... 504
Floor mats .................................. 30
Fluid
Automatic transmission ........ 544
Brake .................................... 545
Washer ................................. 425
Fog lights ................................. 244 Replacing light bulbs ............ 464
Switch ................................... 244
Wattage ................................ 548
Foot well light .......................... 357
Four-wheel drive system ........ 315
Front passenger occupant classification system .............. 53
Front personal lights............... 358
Front seats ............................... 147 Adjustment............................ 147
Cleaning ............................... 403
Correct driving posture ........... 32
Driving position memory ....... 152
Head restraints ..................... 157
Power easy access system .......... ...................... 152
Seat heaters ......................... 354
Seat position memory ........... 152
Seat ventilators ..................... 354
Front side marker lights Light switch ........................... 234
Replacing light bulbs ............ 462
Wattage ................................ 548
Front turn signal lights Replacing light bulbs ............ 461
Turn signal lever ................... 232
Wattage ................................ 548
F