2023 TOYOTA TUNDRA HYBRID open hood

4TABLE OF CONTENTS
Owners Manual_USA_M0C052_en
Driving assist systems ..374
Trailer brake controller .. 380
Trailer Backup Guide .... 383
Active front spoiler ........ 388
4-6. Driving tips Hybrid Electric Vehicle driving tips............................... 390
Off-road precautions ..... 392
Winter driving tips ......... 395
5-1. Using the air conditioning
system and defogger
Automatic air conditioning system ......................... 400
Heated steering wheel/seat heaters/seat ventilators 407
5-2. Using the interior lights Interior lights list ............ 410
5-3. Using the storage features List of storage features . 413
Luggage compartment fea- tures ............................ 417
5-4. Using the other interior fea- tures
Other interior features ... 420
Garage door opener...... 433
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 442
Cleaning and protecting the vehicle interior ............. 445
6-2. Maintenance Maintenance requirements
.................................... 448
General maintenance .... 449
Emission inspection and maintenance (I/M) programs.................................... 452
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ............................. 454
Hood .............................. 456
Engine compartment ..... 457
12-volt battery................ 463
Tires .............................. 466
Tire inflation pressure .... 476
Wheels .......................... 478
Air conditioning filter ...... 479
Cleaning the hybrid battery (traction battery) air intake
vents ............................ 481
Electronic key battery .... 484
Checking and replacing fuses .................................... 486
Light bulbs ..................... 489
7-1. Essential information Emergency flashers....... 494
If your vehicle has to be stopped in an emergency.................................... 494
If the vehicle is submerged or water on the road is rising.................................... 495
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed ........................... 497
5Interior features
6Maintenance and care
7When trouble arises

15Pictorial index
Owners Manual_USA_M0C052_en
Precautions for winter seas on.............................................. P.395
To prevent freezing (windshield wiper de-icer)
*.................... P.405
Precautions for car wash (vehicles with rain-sensing windshield wip-
ers)
*...................................................................................... P.443
Back window .................................................... .................. P.163
Fuel filler door ............................................... ..................... P.222
Refueling method ............................................... .................. P.222
Fuel type/fuel tan k capacity ................................... .............. P.542
Tires.......................................................... ........................... P.466
Tire size/inflation pressure ................................... ................ P.547
Winter tires/tire chains ....................................... .................. P.395
Checking/rotation/tire pressur e warning system ..................P.466
Coping with flat tires......................................... .................... P.515
Hood ........................................................... ......................... P.456
Opening ............................................................................... P.456
Engine oil ..................................................... ........................ P.543
Coping with overheating ...................................................... P.535
Headlights........................................................................... P.211
Parking lights ..................................................................... P.211
Turn signal lights ............................................. .................. P.204
Daytime running lights ......................................... ................ P.211
Head lights/daytime running lights ............................. ..... P.211
Turn signal lights ............................................. .................. P.204
Parking lights ....................................................................... P.211
Side marker lights
*............................................................. P. 204
Fog lights ..................................................... ....................... P.214
Light bulbs of the exterior lights for driving
(Replacing method: P.489, Watts: P.548)

521-2. Child safety
Owners Manual_USA_M0C052_en
1-2.Child safety
Riding with children
Observe the following pre-
cautions when children are
in the vehicle.
Use a child restraint system
appropriate for the child,
until the child becomes
large enough to properly
wear the vehicle’s seat belt.
It is recommended that chil-
dren sit in the rear seats to
avoid accidental contact
with the shift lever, wiper
switch, etc.
Use the rear door child-pro-
tector lock or the window
lock switch to avoid children
opening the door while driv-
ing or operating the power
window accidentally.
( P.116, 162)
Do not let small children
operate equipment which
may catch or pinch body
parts, such as the power
window, hood, tailgate,
seats, etc.
WARNING
■When children are in the vehi-
cle
Never leave children unattended
in the vehicle, and never allow
children to have or use the key.
Children may be able to start the
vehicle or shift the vehicle into
neutral. There is also a danger
that children ma y injure them-
selves by playing with the win-
dows or other features of the
vehicle. In addition, heat build-up
or extremely cold temperatures
inside the vehicle can be fatal to
children.

741-4. Hybrid system
Owners Manual_USA_M0C052_en
vehicle. At slow speeds or when
traveling down a gentle slope,
the engine is stopped
* and the
electric motor (traction motor) is
used.
*: When the hybrid battery (traction battery) requires charging or the
engine is warming up, etc., the
gasoline engine will not automati-
cally stop. ( P. 7 4 )
■During normal driving
The gasoline engine is predomi-
nantly used. The electric motor
(traction motor) charges the
hybrid battery (traction battery)
as necessary.
■When accelerating sharply
When the accelerator pedal is
depressed heavily, the power of
the hybrid battery (traction bat-
tery) is added to that of the gas-
oline engine via the electric
motor (traction motor).
■When braking (regenera-
tive braking)
The wheels operate the electric
motor (traction motor) as a
power generator, and the hybrid
battery (traction battery) is
charged.
■Regenerative braking
●In the following si tuations, kinetic
energy is converted to electric
energy and deceleration force can
be obtained in conjunction with
the recharging of the hybrid bat-
tery (traction battery).
• The accelerator pedal is released while driving with the shift lever in D or S.
• The brake pedal is depressed while driving with t he shift lever in
D or S.
■Conditions in which the gaso-
line engine may not stop
The gasoline engine starts and
stops automatically. However, it may
not stop automatic ally in the follow-
ing conditions:
●During gasoline engine warm-up
●During hybrid battery (traction bat-
tery) charging
●When the temperature of the
hybrid battery (traction battery) is
high or low
●When the heater is switched on
●When the “TOW HA UL” switch is
on
●When the “MTS” switch is on
●When the front-wheel drive control
switch is in “4H” or “4L”
●When the hood is opened during
“READY” indicator is illuminated
●When the shift lever is shifted to S
Depending on the circumstances,
the gasoline engine may also not
stop automatically in other situa-
tions.
■Charging the hybrid battery
(traction battery)
As the gasoline engine charges the
hybrid battery (trac tion battery), the
battery does not need to be charged
from an outside source. However, if
the vehicle is left parked for a long
time the hybrid battery (traction bat-
tery) will slowly dis charge. For this
reason, be sure to drive the vehicle
at least once every few months for
at least 30 minutes or 10 miles (16
km). If the hybrid battery (traction
battery) becomes fully discharged
and you are unabl e to start the
hybrid system, contact your Toyota
dealer.

821-5. Theft deterrent system
Owners Manual_USA_M0C052_en
■Items to check before lock-
ing the vehicle
To prevent unexpected trigger-
ing of the alarm and vehicle
theft, make sure of the following:
 Nobody is in the vehicle.
 The windows and the pan-
oramic moon roof (if
equipped) are closed before
the alarm is set.
 No valuables or other per-
sonal items are left in the
vehicle.
■Setting
Close the doors and hood, and
lock all the doors using the entry
function or wireless remote con- trol. The system will be set auto-
matically after 30 seconds.
The indicator light changes from
being on to flashing when the sys-
tem is set.
■Deactivating or stopping
Do one of the following to deac-
tivate or stop the alarms:
 Unlock the doors and tailgate
using the entry function or
wireless remote control.
 Turn the power switch to ACC
or ON, or start the hybrid sys-
tem. (The alarm will be deacti-
vated or stopped after a few
seconds.)
■System maintenance
The vehicle has a maintenance-free
type alarm system.
■Triggering of the alarm
The alarm may be triggered in the
following situations:
(Stopping the alarm deactivates the
alarm system.)
●The doors are unlocked using the
mechanical key.
Alarm
The alarm uses light and
sound to give an alert when
an intrusion is detected.
The alarm is triggered in the
following situations when
the alarm is set:
 A locked door or tailgate is
unlocked or opened in any
way other than using the
entry function or wireless
remote control. (The doors
will lock again automati-
cally.)
The hood is opened.
Setting/deactivating/stop-
ping the alarm system

831-5. Theft deterrent system
Owners Manual_USA_M0C052_en
1
For safety and security
●A person inside the vehicle opens
a door or hood, or unlocks the
vehicle.
●The 12-volt battery is recharged or
replaced when the vehicle is
locked. ( P.532)
■Alarm-operated door lock
In the following cases, depending
on the situation, th e door may auto-
matically lock to p revent improper
entry into the vehicle:
●When a person remaining in the
vehicle unlocks the door and the
alarm is activated.
●While the alarm is activated, a
person remaining in the vehicle
unlocks the door.
●When recharging or replacing the
12-volt battery.
NOTICE
■To ensure the system oper-
ates correctly
Do not modify or remove the sys-
tem. If modified or removed, the
proper operation of the system
cannot be guaranteed.

2284-5. Using the driving support systems
Owners Manual_USA_M0C052_en
■If a warning message is displayed on the multi-information display
A system may be tempor arily unavailable or there may be a malfu nction in
the system.
●In the following situations, perform the actions specified in t he table. When
the normal operating conditions are detected, the message will disappear
and the system will be come operational.
If the message does not disapp ear, contact your Toyota dealer.
●In the following situations, if the situation has changed (or the vehicle has
been driven for some time) and the normal operating conditions are
detected, the message will disappear and the system will become opera-
tional.
If the message does not disappea r, contact your Toyota dealer.
SituationActions
When the area around a camera is
covered with dirt, moisture (fogged
up, covered with condensation, ice,
etc.), or other foreign matterUsing the wiper and A/C function,
remove the dirt and other attached
matter. ( P.401)
When the temperature around the
front camera is outside of the opera-
tional range, such as when the vehi-
cle is in the sun or in an extremely
cold environment
If the front camera is hot, such as
after the vehicle had been parked in
the sun, use the air conditioning sys-
tem to decrease the temperature
around the front camera.
If a sunshade was used when the
vehicle was parked, depending on its
type, the sunlight reflected from the
surface of the sunshade may cause
the temperature of the front camera
to become excessively high.
If the front camera is cold, such after
the vehicle is parked in an extremely
cold environment, use the air condi-
tioning system to increase the tem-
perature around the front camera.
The area in front o f the front camera
is obstructed, such as when the
hood is open or a sticker is attached
to the part of the win dshield in front
of the front camera.
Close the hood, rem ove the sticker,
etc., to clear the obstruction.
When “Pre-Collisio n System Radar
In Self Calibration Unavailable See
Owner’s Manual” is displayed.Check whether there is attached
materials on the radar sensor and
radar sensor cover, and if there is,
remove it.

4305-4. Using the other interior features
Owners Manual_USA_M0C052_en
WARNING
●Do not use devices which pro-
duce steam while the windows
are closed. Doing so may cause
the windows to fog up, reducing
visibility and making it difficult to
drive safely. Also, the steam
may damage or negatively
affect other devices. If the
device must be used, stop the
vehicle and open the windows
before use.
●Do not use damaged electronic
devices. The power supply
function may not be able to be
used.
●Do not disconnect the plug of a
device while your hands are wet
or insert a pin or other object
into the pow er outlet. Also, if a
liquid or snow is on the power
outlet, dry the outlet before
using it.
●Do not attempt to modify, disas-
semble or repair a power outlet.
For information on repairs, con-
tact your Toyota dealer.
●Do not let children touch the
power outlets.
●Keep the power outlets free of
dust and foreign matter. Also,
regularly clean the power outlet.
●If the plug of a device fits
loosely in a pow er outlet, even
though it is fully inserted,
replace the power outlet. For
information on replacement,
contact your Toyota dealer.
■Using the power outlets while
parked or stopped
Observe the following precau-
tions.
Failure to do so may lead to an
accident, possibly resulting in
death or serious injury.
●Do not leave the vehicle unat-
tended while the hybrid system
is operating and a device is con-
nected to a power outlet.
●Do not place luggage or get
near the vicinit y of the tailpipe.
●Make sure that the hood is
closed. Do not put your head or
hands anywhere inside the
engine room, as the cooling
fans may operate suddenly. If
too close, hands and clothing
(especially a tie, scarf, etc.) may
get caught in a fan.
●Do not stop the vehicle near
objects which burn easily.
●Install and use appropriately
related devices to make air sup-
ply and exhaust ventilation pos-
sible in places where ventilation
is bad, such as within garages,
and places where the vehicle is
surrounded (places where snow
accumulates).
●Do not use in places where ven-
tilation is bad, such as within
garages where there are no air
supply and exhaust ventilation
devices, and places where the
vehicle is surrounded (places
where snow accumulates, etc.).
●Do not use the power outlets if
the vehicle has a vehicle cover
installed.
●Do not sleep in the vehicle while
using devices such as an elec-
tric heater.
■Devices to be connected
●Read the instruction manual
included with the electronic
device being used and observe
the precautions that are stated
regarding the product.
●Do not use when the power plug
or electronic device are dam-
aged.