engine TOYOTA TUNDRA 2023 Owners Manual

5568-1. Specifications
NOTICE
■Notice on fuel quality
● Do not use improper fuels. If improper fuels are used, the engi ne will be
damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine k nocking, etc.) is
encountered after using a different type of fuel, discontinue the use of that
type of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

5638-1. 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
■Automatic light off system* ( P. 220)
*: If equipped
■
Illumination ( P. 3 5 3 )
*: Vehicles with a smart key system
■
Intuitive parking assist* (  P. 284)
*: If equipped
FunctionDefault settingCustomized
setting
Light sensor sensitivity Level 3 Level 1 to 5 — O O
Time elapsed before
headlights automatically
turn off after doors are
closed 30 seconds0 seconds
—O O
60 seconds
90 seconds
123
FunctionDefault settingCustomized
setting
Time elapsed before lights
turn off 15 seconds7.5 seconds
—O O
30 seconds
Operation after the engine
is off On Off — — O
Operation when the doors
are unlocked On Off — — O
Operation when you
approach the vehicle with
the electronic key on your
person
*
On Off — — O
123
FunctionDefault settingCustomized
setting
Detection distance of the
rear center sensor Far Near — O O
Buzzer Volume Level 3 Level 1 to 5 — O O
Display setting All sensors
displayed Display off — O O
123

5748-2. Customization
■Seat Belt Reminder Buzzer (P. 483)
■Rear seat reminder ( P. 125)
■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 speed-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.
FunctionDefault settingCustomized setting
Vehicle speed linked seat belt
reminder buzzerOnOff — — O
123
FunctionDefault settingCustomized setting
Indication to prevent mis-
placement in the rear seatOnOff O — —
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.
123

592
■Cargo weight rating
NO.EngineTrans-
missionDriveCabBedGradePas-
sengerV. C . W
Cargo
Weight Rating
lbslbs
1 2TR 6AT
2WDAccess Long SR5 4 1,500
900
2 2TR 6AT Double Short SR5 5 1,400
650
3 2GR 6AT Access Long SR5 4 1,400
800
4 2GR 6AT Double Short SR5 5 1,200
450
5 2GR 6AT Double Short Limited 5 1,250
500
6 2GR 6AT Double Long SR5 5 1,195
450
7 2GR 6AT Double Long Limited 5 1,200
445
8 2TR 6AT
4WDAccess Long SR5 4 1,300
700
9 2GR 6MT Access Long SR5 4 1,100
500
10 2GR 6AT Access Long SR5 4 1,150
550
11 2GR 6MT Double Short SR5 5 945
195
12 2GR 6AT Double Short SR5 5 990
240
13 2GR 6AT Double Short Limited 5 990
195
14 2GR 6AT Double Long SR5 5 940
190
15 2GR 6AT Double Long Limited 5 945
195
WARNING
■ Overloading
Be careful — overloading can cause dangerous braking and handling
problems, and can damage your vehicle and its tires.

596What 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. 115)
●If you lose your keys or electronic keys, the risk of vehicle t heft increases
significantly. Contact your Toyota dealer immediately. ( P. 118)
●Is the key battery weak or depleted? (P. 451)
●Vehicles with a smart key system:
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( P. 206)
●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. 134)
●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. 123)
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 opene d (Double Cab models only)

597What to do if... (Troubleshooting)
●Vehicles with an automatic transmission:
Is the shift lever in P? (P. 202)
●Vehicles with a manual transmission:
Do you turn the key with the clutch pedal depressed firmly? ( P. 202)
●Is the battery discharged? (P. 530)
●Did you press the engine switch while firmly depressing the bra ke pedal?
( P. 205)
●Is the shift lever in P? ( P. 208)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 132)
●Is the steering wheel unlocked? (P. 208)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( P. 528)
●Is the battery discharged? (P. 530)
●Vehicles without a smart key system:
Is the engine switch in the “ON” position?
If you cannot release the shift lever by depressing the brake p edal with the
engine switch in the “ON” position. ( P. 214)
●Vehicles with a smart key system:
Is the engine switch in IGNITION ON mode?
If you cannot release the shift lever by depressing the brake p edal with the
engine switch in IGNITION ON mode. ( P. 214)
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 (vehicles with an automatic transmission)

598What to do if... (Troubleshooting)
●Vehicles without a smart key system:
It is locked to prevent theft of the vehicle if the key is removed from the
engine switch. ( P. 203)
●Vehicles with a smart key system:
It is locked automatically to prevent theft of the vehicle. ( P. 208)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 156)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a peri od of
time. ( P. 207)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? (P. 483)
●The parking brake indicator is on
Is the parking brake released? ( P. 219)
Depending on the situation, other types of warning buzzer may also sound.
( P. 483, 496)
●Is the electronic key left inside the vehicle?
Check the message on the multi-information display. ( P. 489)
The steering wheel cannot be turned after the engine is
stopped
The windows do not open or close by operating the power
window switches
The engine switch is turned off automatically
(vehicles with a smart key system)
A warning buzzer sounds during driving
A warning buzzer sounds w hen leaving the vehicle
(vehicles with a smart key system)

599What to do if... (Troubleshooting)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 88)
●Vehicles without a smart key system:
To stop the alarm, turn the engine switch to the “ON” position or start the
engine.
●Vehicles with a smart key system:
To stop the alarm, turn the engine switch to IGNITION ON mode o r start
the engine.
●When a warning light turns on or a warning message or indicator is dis-
played, refer to P. 482, 489.
●Stop the vehicle in a safe place and replace the flat tire with the spare tire.
( P. 511)
●Try the procedure for when the vehicle becomes stuck in mud, di rt, or
snow. ( P. 536)
An alarm is activated and the horn sounds
(vehicles with an alarm)
A warning light turns on or a warning message or indicator
is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

602Alphabetical index
Child safety ................................ 53Airbag precautions .................. 39
Battery precautions ............... 533
Child restraint system ............. 54
How your child should wear the seat belt ................. 32
Installing child restraints ......... 58
Moon roof precautions .......... 165
Power back window precautions ......................... 161
Power window lock switch .... 156
Power window precautions ... 158
Rear door child-protector ...... 123
Removed wireless remote control/electronic key
battery precautions ............. 453
Seat belt extender precautions ........................... 35
Seat belt precautions .............. 57
Seat heater precautions........ 351
Child-protectors....................... 123
Cleaning ........................... 402, 406 Aluminum wheels.................. 403
Exterior ................................. 402
Interior................................... 406
Seat belts .............................. 407
Clock
*
Compass .................................. 397
Condenser ................................ 425
Console box ............................. 358
Consumption screen ....... 103, 109
Cooling system ........................ 423 Capacity ................................ 547
Checking ............................... 423
Engine overheating ............... 534
Preparing and checking before winter....................... 329 Crawl Control ........................... 318
CRS ............................................. 54
Cruise control
Cruise control ....................... 280
Dynamic radar cruise control ................................ 266
Cup holders ............................. 359
Curtain shield airbags............... 37
Customizable features ............ 568
Daytime running light system.................................... 222
Deck hooks .............................. 367
Defogger Outside rear view
mirrors ........................ 340, 347
Windshield .................... 340, 347
Differential................................ 548
Dimensions .............................. 540
Dinghy towing.......................... 201
Display
Drive information .................. 103
Dynamic radar cruise control ................................ 266
LDA (Lane Departure Alert) ....... 258
Multi-information display ....... 102
Warning message................. 489
Do-it-yourself maintenance .... 415
Door lock Doors .................................... 119
Key ....................................... 119
Smart key system ................. 120
Wireless remote control ........ 119
D