2021 TOYOTA TUNDRA battery

5598-1. Specifications
8
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

5738-2. Customization
8
Vehicle specifications
■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, al l 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 spee d-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.
WARNING
■ 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 seriou s health haz-
ard.
NOTICE
■ During customization
To prevent battery discharge, ensure that the engine is running while cus-
tomizing features.

5748-3. 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

594What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your keys or mechanical keys, new genuine mechanical keys
can be made by your Toyota dealer. ( P. 123)
●If you lose your keys or electronic keys, the risk of vehicle t heft increases
significantly. Contact your Toyota dealer immediately. ( P. 126)
●Is the wireless key battery weak or depleted? (P. 451)
●Vehicles with a smart key system:
Is the engine switch in ON?
When locking the doors, turn the engine switch off. ( P. 220)
●Vehicles with a smart key system:
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of t he radio
wave. ( P. 123)
●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. 131)
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

595What to do if... (Troubleshooting)
●Is the shift lever in P? (P. 217)
●Is the battery discharged? ( P. 525)
●Did you press the engine switch while firmly depressing the bra ke pedal?
( P. 219)
●Is the shift lever in P? ( P. 222)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 139)
●Is the steering wheel unlocked? (P. 222)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( P. 523)
●Is the battery discharged? (P. 525)
●Is the engine switch in ON?
If you cannot release the shift lever by depressing the brake p edal with the
engine switch in ON. ( P. 229)
If you think something is wrong
The engine does not start
(vehicles without a smart key system)
The engine does not start
(vehicles with a smart key system)
The shift lever cannot be shifted from P even if you depress
the brake pedal

599Alphabetical index
Back windowBack window ......................... 175
Power back window .............. 176
Back-up lights
Replacing light bulbs............. 468
Wattage ................................ 550
Battery ...................................... 422
If the vehicle battery is discharged .......................... 525
Preparing and checking
before winter....................... 331
Warning light ......................... 485
Blind Spot Monitor (BSM) ....... 305
Bluetooth
®*
Bottle holders .......................... 372
Brake
Fluid ...................................... 420
Parking brake........................ 233
Warning buzzer..................... 485
Warning light ......................... 485
Brake assist ............................. 320
Brake Override System ........... 185
Break-in tips ............................. 186
Brightness control Instrument panel light
control................................. 107
BSM (Blind Spot Monitor) ....... 305 Blind Spot Monitor
function ............................... 309
Rear Cross Traffic Alert function ............................... 312 Camper information ................ 588
Card holder .............................. 364
Care .................................. 400, 403
Aluminum wheels ................. 400
Exterior ................................. 400
Interior .................................. 403
Seat belts.............................. 404
Cargo capacity......................... 195
Cargo lamp Light switch ........................... 359
Replacing light bulbs ............ 470
Wattage ................................ 550
CD player
*
Certification label ............ 200, 541
Chains ...................................... 332
Child restraint system............... 59
Booster seats, definition ......... 60
Booster seats, installation....... 69
Convertible seats, definition ... 60
Convertible seats, installation ............................ 68
Front passenger occupant
classification syst em ............ 53
Infant seats, definition............. 60
Infant seats, installation .......... 67
Installing CRS with LATCH anchors ............ 65
Installing CRS with seat
belts...................................... 67
Installing CRS with top tether strap........ 70, 73
BC
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER
’S MANUAL”.

600Alphabetical index
Child safety ................................ 58Airbag precautions .................. 44
Battery precautions ............... 527
Child restraint system ............. 59
How your child should wear the seat belt ................. 36
Installing child restraints ......... 63
Moon roof precautions .......... 182
Power back window precautions ......................... 178
Power window lock switch .... 172
Power window precautions ... 174
Rear door child-protector ...... 131
Removed wireless remote control battery
precautions ......................... 453
Seat belt extender precautions ........................... 39
Seat belt precautions .............. 62
Seat heater precautions........ 355
Child-protectors....................... 131
Cleaning ........................... 400, 403 Aluminum wheels.................. 400
Exterior ................................. 400
Interior................................... 403
Seat belts .............................. 404
Clock
*
Compass .................................. 394
Condenser ................................ 420
Console box ............................. 363
Coolant ..................................... 418 Capacity ................................ 545
Checking ............................... 418
Preparing and checking before winter....................... 331
Cooling system ........................ 418 Engine overheating ............... 529
CRS ............................................. 59 Cruise control
Cruise control ....................... 294
Dynamic radar cruise control ...................... 280
Cup holders ............................. 370
Curtain shield airbags............... 41
Customizable features ............ 564
Daytime running light system.................................... 237
Deck hooks .............................. 377
Defogger Back window................. 342, 349
Outside rear view mirrors ........................ 342, 349
Windshield .................... 342, 349
Differential................................ 546
Dimensions .............................. 536
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................. 493
Do-it-yourself maintenance .... 412
Door lock .................................. 127 Doors .................................... 127
Key ....................................... 127
Smart key system ................. 128
Wireless remote control ........ 128
D

601Alphabetical index
Doors ........................................ 127Automatic door locking and unlocking system ......... 132
Door glasses ......................... 172
Door lock............................... 130
Open door warning message ............................. 494
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 ...... 521
If the vehicle is trappedin rising water ..................... 477
If the vehicle has discharged battery ................................ 525
If the warning buzzer sounds................................ 485
If the warning light turns
on ....................................... 485
If the warning message is displayed ........................ 493
If you have a flat tire ............. 506
If you lose your keys ............. 123
If you think something is wrong .............................. 483
If your vehicle becomes stuck ................................... 532
If your vehicle has to be stopped in an emergency ... 475
If your vehicle needs
to be towed......................... 478
If your vehicle overheats....... 529
Emergency flashers ................ 474
Engine
“ACC” position ...................... 217
Compartment ........................ 415
Engine switch ....................... 217
Hood ..................................... 414
How to start the engine......... 217
Identification number ............ 541
If the engine will not start ...... 521
Ignition switch (engine switch) ................... 217
Immobilizer system .. ............... 85
Overheating .......................... 529E
*: Refer to “NAVIGATION AND MULTIMEDIA SYSTEM OWNER
’S MANUAL”.