2021 TOYOTA TUNDRA coolant capacity

5458-1. Specifications
8
Vehicle specifications
Cooling system
Capacity
Vehicles without towing package
11.4 qt. (10.8 L, 9.5 Imp.qt.)
Vehicles with towing package
12.4 qt. (11.7 L, 10.3 Imp.qt.)
Coolant typeUse either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol- based non-silicate, non-amine, non-
nitrite, and non-borate coolant with
long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO SK20HR11
Gap0.043 in. (1.1 mm)
NOTICE
■ Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system
Battery
Open voltage at 68F
(20 C):12.6  12.8 V Fully charged
12.2
 12.4 V Half charged
11 . 8
 12.0 V Discharged
(Voltage is checked 20 minutes after the engine
and all lights are turned off.)
Charging rates5 A max.

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

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

602Alphabetical index
Engine coolant ......................... 418Capacity ................................ 545
Checking ............................... 418
Preparing and checking before winter....................... 331
Engine coolant temperature gauge...................................... 105
Engine immobilizer system ...... 85
Engine oil ................................. 416 Capacity ................................ 543
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 ..................................... 506
Floor mats .................................. 30
Fluid
Automatic transmission ........ 546
Brake .................................... 547
Washer ................................. 425
Fog lights ................................. 244
Replacing light bulbs ............ 466
Switch ................................... 244
Wattage ................................ 550
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 ............ 464
Wattage ................................ 550
Front turn signal lights
Replacing light bulbs ............ 463
Turn signal lever ................... 232
Wattage ................................ 550
Fuel ........................................... 542 Capacity................................ 542
Fuel gauge............................ 105
Fuel pump shut off system ... 484
Gas station information......... 612
Information............................ 551
Refueling .............................. 248
Type.............................. 248, 542F