2023 TOYOTA TUNDRA HYBRID battery

3894-6. Driving tips
Owners Manual_USA_M0C052_en
4
Driving
4-6.Driving tips
When using Eco drive mode, the
torque corresponding to the
accelerator pedal depression
amount can be generated more
smoothly than it is in normal
conditions. In addition, the oper-
ation of the air conditioning sys-
tem (heating/cooling) will be
minimized, improving the fuel
economy. ( P.358)
The Eco-friendly driving is pos-
sible by keeping the indicate of
Hybrid System Indicator within
Eco area. ( P.97)
Shift the shift lever to D when
stopped at a traffic light, or driv-
ing in heavy traffic etc. Shift the
shift lever to P when parking.
When using the N, there is no
positive effect on fuel consump-
tion. When using the air condi-
tioning system, etc., the hybrid
battery (traction battery) power
is consumed. 
Drive your vehicle smoothly.
Avoid abrupt acceleration and
deceleration. Gradual accel-
eration and deceleration will
make more effective use of
the electric motor (traction
motor) without having to use
gasoline engine power.
 Avoid repeated acceleration.
Repeated acceleration con-
sumes hybrid battery (trac-
tion battery) power, resulting
in poor fuel consumption. Bat-
tery power can be restored by
driving with the accelerator
pedal slightly released.
Make sure to operate the brakes
gently and in a timely manner. A
greater amount of electrical
energy can be regenerated
when slowing down.
Repeated acceleration and
deceleration, as well as long
waits at traffic lights, will lead to
bad fuel economy. Check traffic
reports before leaving and avoid
delays as much as possible.
When driving in a traffic jam,
gently release the brake pedal
to allow the vehicle to move for-
ward slightly while avoiding
Hybrid Electric Vehi-
cle driving tips
For economical and ecolog-
ical driving, pay attention to
the following points:
Using Eco drive mode
Use of Hybrid System
Indicator
Shift lever operation
Accelerator pedal/brake
pedal operation
When braking
Delays

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.

4035-1. Using the air conditioning system and defogger
Owners Manual_USA_M0C052_en
5
Interior features
■Air conditioning system refrig-
erant
●A label regarding the refrigerant of
the air conditioning system is
attached to the ho od at the loca-
tion shown in the f ollowing illustra-
tion.
●The meaning of each symbol on
the label are as follows:
■Customization
Some functions can be customized.
(Customizable features: P.569)
1 Operate the “AUTO” toggle.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch.
If the fan speed setting or air
Caution
Air conditioning sys-
tem
Air conditioning sys-
tem lubricant type
Requires registered
technician to service
air conditioning sys-
tem
Flammable refrigerant
WARNING
■To prevent the windshield
from fogging up
Do not use the windshield defog-
ger switch during cool air opera-
tion in extremely humid weather.
The difference between the tem-
perature of the outside air and
that of the windshield can cause
the outer surface of the wind-
shield to fog up, blocking your
vision.
■When the outside rear view
mirror defoggers are operat-
ing
Do not touch the rear view mirror
surfaces when the outside rear
view mirror def oggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the hybrid system is off.
■When repairing/replacing
parts of the air conditioning
system
Have repair/replacement per-
formed by your Toyota dealer.
When a part of the air conditioning
system, such as the evaporator, is
to be replaced, it must be
replaced with a new one.
Using automatic mode

4075-1. Using the air conditioning system and defogger
Owners Manual_USA_M0C052_en
5
Interior features
*: If equipped
■Heated steering wheel (if
equipped)
Turns heated steering wheel
on/off When the heated steering
wheel is on, the indicator illumi-
nates on the heated steering
wheel switch.
Heated steering
wheel*/seat heat-
ers*/seat ventilators*
 Heated steering wheel
Warms up the grip of the
steering wheel
 Front seat heaters/Rear
seat heaters
Warm up the seat upholstery
 Front seat ventilators/Rear
seat ventilators
Maintain good ventilation by
pulling air through the seat
upholstery
WARNING
■To prevent minor burn inju-
ries
Care should be taken if anyone in
the following categories comes in
contact with the steering wheel or
seats when the heater is on:
●Babies, small children, the
elderly, the sick and the physi-
cally challenged
●Persons with sensitive skin
●Persons who are fatigued
●Persons who have taken alco-
hol or drugs that induce sleep
(sleeping drugs, cold remedies,
etc.)
NOTICE
■To prevent damage to the
seat heaters and seat ventila-
tors
Do not put heavy objects that
have an uneven surface on the
seat and do not stick sharp
objects (needles, nails, etc.) into
the seat.
■To prevent 12-volt battery dis-
charge
Do not use the functions when the
hybrid system is off.
Operating instructions

4125-2. Using the interior lights
Owners Manual_USA_M0C052_enopened or closed while the shift
lever is in P, D or R.
The trailer hitch light turns on when
the door or tailgate is opened or
closed while the shift lever is in P or
R. trailer hitch light will turn off
when shift lever in D.
“ON”
The cargo lamp, bed lamp, trailer
hitch light turns o
n while the shift
lever is in P or R. Only cargo lamp
and bed lamp turns on while shift
lever is in D.
■Illuminated entry system
The lights automatically turn on/off
according to the power switch
mode, the presence of the elec-
tronic key, whether the doors are
locked/unlocked, and whether the
doors are open/closed.
■To prevent the 12-volt battery
from being discharged
If the follo wing lights remain on
when the door is not fully closed and
the main switch i s in the “DOOR”
position, the lights will go off auto-
matically after 20 minutes:
●Personal/interior lights
●Cargo lamp
●Bed lamp
●Trailer hitch light
■The personal/interior lights may
turn on automatically when
If any of the SRS airbags deploy
(inflate) or in the event of a strong
rear impact, the personal/interior
lights will turn on automatically.
The personal/interior lights will turn
off automatically after approximately
20minutes.
The personal/interior lights can be
turned off manually. However, in
order to help prev ent further colli-
sions, it is recommended that they be left on until safety can be
ensured.
(The personal/interior lights may not
turn on automatically depending on
the force of the impact and condi-
tions of the collision.)
■Customization
Some functions can be customized.
(  P.561)
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the lights on longer
than necessary when the hybrid
system is off.
■Removing light lenses
Never remove the lens for the
personal/interior lights. Otherwise,
the lights will be damaged. If a
lens needs to be removed, con-
tact your Toyota dealer.

4215-4. Using the other interior features
Owners Manual_USA_M0C052_en
5
Interior features
A portable device can be
charged by just placing Qi stan-
dard wireless charge compatible
portable devices according to
the Wireless Power Consortium, such as smartphones and
mobile batteries, etc., on the
charge area.
This function cannot be used
with portable devices that are
larger than the charging area.
Also, depending on the portable
device, it may not operate as
normal. Please read the opera-
tion manual for portable devices
to be used.
■The “Qi” symbol
The “Qi” symbol is a trademark
of the Wireless Power Consor-
tium.
■Name for all parts
Charge area
Operation indicator light
NOTICE
■To prevent damage to the
USB charging ports
●Do not insert foreign objects into
the ports.
●Do not spill water or other liq-
uids into the ports.
●Rear of console box: When the
USB charging ports are not in
use, close the lids. If a foreign
object or liquid enters a port
may cause a short circuit.
●Do not apply excessive force to
or impact the USB charging
ports.
●Do not disassemble or modify
the USB charging ports.
■To prevent damage to exter-
nal devices
●Do not leave external devices in
the vehicle. The temperature
inside the vehicle may become
high, resulting in damage to an
external device.
●Do not push down on or apply
unnecessary force to an exter-
nal device or the cable of an
external device while it is con-
nected.
■To prevent 12-volt battery dis-
charge
Do not use the USB charging
ports for a long period of time with
the hybrid system is off.
Wireless charger (if
equipped)

4255-4. Using the other interior features
Owners Manual_USA_M0C052_en
5
Interior features
Pull the armrest down for use. An assist grip installed on the
pillar can be used when getting
in or out of the vehicle and oth-
ers.
NOTICE
●When other wireless keys (that
emit radio waves) are being
used nearby
In addition, excl uding the above-
mentioned, when the charger
does not perform normally or the
operation display lamp is flashing
continuously, it is considered that
the wireless charger is malfunc-
tioning. Contact authorized Toyota
dealer.
■To prevent failu re or damage
to data
●Do not bring magnetic cards,
such as credit cards, or mag-
netic recording media, etc.,
close to the charger while
charging, otherwise, data may
disappear under the influence of
magnetism. Also, do not bring
precision instruments such as
wrist watches, etc ., close to the
charger, as such objects may
break.
●Do not leave portable devices in
the cabin. The temperature
inside the cabin may become
high, when under the sun, and
cause damage to the device.
■To prevent 12-volt battery dis-
charge
When the hybrid system is
stopped, do not use the wireless
charger for a long time.
Armrest
NOTICE
■To prevent damage to the
armrest
Do not place too much strain on
the armrest.
Assist grips
NOTICE
■To prevent damage to the
assist grip
Do not hang any heavy object or
put a heavy load on the assist
grip.

4265-4. Using the other interior features
Owners Manual_USA_M0C052_en
Ty p e A
Type B
The power outlet can be used
for 12 V accessories that run on
less than 10 A.
Open the lid.
■The power outlet can be used
when
The power switch is in ACC or ON.
■When stopping the hybrid sys-
tem
Disconnect electrical devices with
charging functions, such as mobile
battery packs. If such devices are
left connected, the hybrid system
may not stop normally.
Please use as a power supply
for electronic devices that use
Coat hooks
WARNING
■Items that must not be hung
on the hook
Do not hang a coat hanger or
other hard or sharp object on the
hook. If the SRS curtain shield air-
bags deploy, these items may
become projectiles that cause
death or serious injury.
Power outlet (12 VDC)
NOTICE
■To avoid damaging the power
outlet
Close the power outlet lid when
the power outlet is not in use.
Foreign objects or liquids that
enter the power outlet may cause
a short circuit.
■To prevent the fuse from
being blown
Do not use an accessory that
uses more than 12 V 10 A.
■To prevent 12-volt battery dis-
charge
Do not use the p ower outlet lon-
ger than necessary when the
hybrid system is off.
Power outlets (120 VAC)
(if equipped)