2023 TOYOTA TUNDRA HYBRID Owners Manual

3934-6. Driving tips
Owners Manual_USA_M0C052_en
4
Driving
NOTICE
■To prevent water damage
Take all necessary safety mea-
sures to ensure that water dam-
age to the engine, hybrid system
or other components does not
occur.
●Water entering the engine air
intake will cause severe engine
damage.
●Water entering the automatic
transmission will cause deterio-
ration in shift quality, locking up
of your transmission accompa-
nied by vibration, and ultimately
damage.
●Water can wash the grease
from wheel bearings, causing
rusting and premature failure,
and may also enter the differen-
tials, transmission and transfer
case, reducing the gear oil’s
lubricating qualities.
■When you drive through
water
●If driving through water, such as
when crossing shallow streams,
first check the depth of the
water and the bottom of the riv-
erbed for firmness. Drive slowly
and avoid deep water.
●When crossing a river or a pud-
dle, be sure to cross it without
stopping midway. If you stop or
drive at extremely low speeds in
water, water may enter the vehi-
cle and damage the hybrid bat-
tery making the vehicle unable
to be driven.
■Inspection after off-road driv-
ing
●Sand and mud that has accu-
mulated around brake discs
may affect braking efficiency
and may damage brake system
components.
●Always perform a maintenance
inspection after each day of off-
road driving that has taken you
through rough terrain, sand,
mud, or water. For scheduled
maintenance information, refer
to the “Scheduled Maintenance
Guide” or “Owner’s Manual
Supplement”.

3944-6. Driving tips
Owners Manual_USA_M0C052_en
Use fluids that are appropriate
to the prevailing outside tem-
peratures.
• Engine oil
• Engine/power control unit coolant
• Washer fluid
Have a service technician
inspect the condition of the
12-volt battery.
 Have the vehicle fitted with
four snow tires or purchase a
set of tire chains for the rear
tires
*.
*: Tire chains cannot be mounted
on 285/65R18 tires.
Ensure that all tires are the same
size and brand, and that chains
match the size of the tires.
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay result in a
loss of vehicle control and cause
death or serious injury.
●Use tires of the specified size.
●Maintain the recommended
level of air pressure.
●Do not drive in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
●4WD models: Do not mix tires of
different makes, models, tread
patterns or treadwear.
■Driving with tire chains (vehi-
cles without 285/65R18 tires)
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden engine braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use LTA (Lane Tracing
Assist) (if equipped) system.

3954-6. Driving tips
Owners Manual_USA_M0C052_en
4
Driving
Perform the following according
to the driving conditions:
 Do not try to forcibly open a
window or move a wiper that
is frozen. Pour warm water
over the frozen area to melt
the ice. Wipe away the water
immediately to prevent it from
freezing.
 To ensure proper operation of
the climate control system
fan, remove any snow that
has accumulated on the air
inlet vents in front of the wind-
shield.
 Check for and remove any
excess ice or snow that may
have accumulated on the
exterior lights, vehicle’s roof,
chassis, around the tires or on
the brakes.
 Remove any snow or mud
from the bottom of your shoes
before getting in the vehicle. Accelerate the vehicle slowly,
keep a safe distance between
you and the vehicle ahead, and
drive at a reduced speed suit-
able to road conditions.

Park the vehicle and move
the shift lever to P without set-
ting the parking brake. The
parking brake may freeze up,
preventing it from being
released. If the vehicle is
parked without setting the
parking brake, make sure to
block the wheels.
Failure to do so may be dan-
gerous because it may cause
the vehicle to move unexpect-
edly, possibly leading to an
accident.
When the parking brake is in auto-
matic mode, release the parking
brake after shifting the shift lever to
P. ( P.206)
 If the vehicle is parked without
setting the parking brake,
confirm that the shift lever
cannot be moved out of P
*.
*: The shift lever will be locked if it is
attempted to be shifted from P to
any other position without
depressing the brake pedal. If the
shift lever can be shifted from P,
there may be a problem with the
shift lock system. Have the vehi-
cle inspected by your Toyota
NOTICE
■Repairing or replacing snow
tires
Request repairs or replacement of
snow tires from Toyota dealers or
legitimate tire retailers.
This is because the removal and
attachment of snow tires affects
the operation of the tire pressure
warning valves and transmitters.
Before driving the vehicle
When driving the vehicle
When parking the vehicle

3964-6. Driving tips
Owners Manual_USA_M0C052_endealer immediately.
Vehicles without 285/65R18
tires
Use the correct tire chain size
when mounting the tire chains.
Chain size is regulated for each
tire size.
Side chain (0.2 in. [5 mm] in
diameter)
Cross chain (0.25 in. [6.3
mm] in diameter)
Vehicles with 285/65R18 tires
Tire chains cannot be mounted
as the space between the tire
and body is too narrow.
Snow tires should be used
instead. Regulations regarding the use
of tire chains vary depending on
location and type of road.
Always check local regulations
before installing chains.
■Tire chain installation
Observe the followi ng precautions
when installing and removing
chains:
●Install and remove tire chains in a
safe location.
●Install tire chains on the rear tires.
Do not install ti re chains on the
front tires.
●Install tire chains on the rear tires
as tightly as possible. Retighten
chains after driving 1/4 1/2 mile
(0.5 1.0 km).
●Install tire chains following the
instructions provided with the tire
chains.
WARNING
■When parking the vehicle
When parking the v ehicle without
applying the parking brake, make
sure to chock the wheels. If you
do not chock the wheels, the vehi-
cle may move une xpectedly, pos-
sibly resulting in an accident.
Selecting tire chains
Regulations on the use of
tire chains (vehicles with-
out 285/65R18 tires)
NOTICE
■Fitting tire chains
The tire pressure warning valves
and transmitters may not function
correctly when tire chains are fit-
ted.

399
Owners Manual_USA_M0C052_en
5
5
Interior features
Interior features
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 features
Other interior features . 420
Garage door opener.... 433

4005-1. Using the air conditioning system and defogger
Owners Manual_USA_M0C052_en
5-1.Using the air conditioning system and defogger
Left-hand side temperature control toggle
“AUTO” toggle
Fan speed control toggle
“SYNC” toggle
Air flow mode control toggle
Right-hand side temperature control toggle
“S-FLOW” switch
Outside/recirculated air mode switch
“A/C” switch
Rear window and outside rear view mirror defoggers switch
Windshield defogger switch
“OFF” switch
■Adjusting the temperature
setting
Operate the temperature con-
trol toggle upwards to increase
the temperature and downwards
to decrease the temperature.If the “A/C” switch is not pressed,
the system will blow ambient tem-
perature air or heated air.
■Setting the fan speed
Operate the fan speed control
toggle upwards to increase the
Automatic air conditioning system
Air outlets and fan speed are automatically adjusted accord-
ing to the temperature setting.
Air conditioning controls

4015-1. Using the air conditioning system and defogger
Owners Manual_USA_M0C052_en
5
Interior features
fan speed and downwards to
decrease the fan speed.
Press the “OFF” switch to turn the
fan off.
■Change the airflow mode
Operate the air flow mode con-
trol toggle
The airflow mode changes as fol-
lows each time the toggle is oper-
ate.
1 Air flows to the upper body.
2 Air flows to the upper body
and feet.
3 Air flows to the feet.
4 Air flows to the feet and the
windshield defogger oper-
ates.
■Switching between outside
air and recirculated air
modes
Press the outside/recirculated
air mode switch.
The mode switches between
outside air mode and recircu-
lated air mode each time the switch is operated.
When recirculated air mode is
selected, the indicator illumi-
nates on the outside/recircu-
lated air mode switch.
■Set cooling and dehumidifi-
cation function
Press the “A/C” switch.
When the function is on, “A/C ON”
indicator will illumi nate. When the
function is off, “A/ C OFF” indicator
will illuminate.
■Defogging the windshield
Defoggers are used to defog the
windshield and front side win-
dows.
Press the windshield defogger
switch.
Press the outside air mode switch if
the recirculated air mode is used. (It
may switch automatically.)
To defog the windshield and the
side windows quickly, turn the air
flow and temperature up.
To return to the previous mode,
press the windshield defogger
switch again when the windshield is
defogged.
When the windshield defogger
switch is on, the indicator illumi-
nates on the windshield defogger
switch.
■Defogging the rear window
and outside rear view mir-
rors
Defoggers are used to defog the
rear window and to remove rain-
drops, dew and frost from the

4025-1. Using the air conditioning system and defogger
Owners Manual_USA_M0C052_en
outside rear view mirrors.
Press the rear window and out-
side rear view mirror defoggers
switch.
The defoggers will automatically
turn off after 15 minutes.
When the rear window and outside
rear view mirror defoggers switch is
on, the indicator illuminates on the
rear window and ou tside rear view
mirror defoggers switch.
■When the outside temperature
exceeds 75°F (24°C) and the air
conditioning system is on
●In order to reduce the air condi-
tioning power consumption, the air
conditioning system may switch to
recirculated air mode automati-
cally.
This may also reduce fuel con-
sumption.
●Recirculated air mode is selected
as a default mode when the power
switch is turned to ON.
It is possible to switch to outside air
mode at any time by pressing the
outside air mode switch.
■Fogging up of the windows
●The windows will easily fog up
when the humidity in the vehicle is
high. Turning the cooling and
dehumidification function on will
dehumidify the air from the outlets
and defog the windshield effec-
tively.
●If you turn the cooling and dehu-
midification function off, the win-
dows may fog up more easily.
●The windows may fog up if the
recirculated air mode is used.
■When driving on dusty roads
Close all windows. If dust thrown up
by the vehicle is still drawn into the
vehicle after closing the windows, it
is recommended that the air intake mode be set to outside air mode and
the fan speed to a
ny setting except
off.
■Outside/recirculated air mode
●Setting to the recirculated air
mode temporarily is recom-
mended in preventing dirty air
from entering the vehicle interior
and helping to c ool the vehicle
when the outside air temperature
is high.
●Outside/recirculated air mode may
automatically switch depending on
the temperature setting or the
inside temperature.
■When the outside temperature
falls to nearly 32°F (0°C)
The dehumidification function may
not operate even when “A/C” switch
is pressed.
■Ventilation and air conditioning
odors
●To let fresh air in, set the air condi-
tioning system to the outside air
mode.
●During use, various odors from
inside and outside the vehicle may
enter into and accumulate in the
air conditioning system. This may
then cause odor to be emitted
from the vents.
●In order to suppr ess odors that
occur when the air conditioning
system starts, the air flow mode
may change to blow air to the feet
or air may stop blowing for a short
period of time immediately after
the air conditioning system is
started in automatic mode.
●When parking, the system auto-
matically switches to outside air
mode to encourage better air cir-
culation throughout the vehicle,
helping to reduce odors that occur
when starting the vehicle.
■Air conditioning filter
 P.479