2023 TOYOTA SEQUOIA HYBRID air conditioning

4TABLE OF CONTENTS
Owners Manual_USA_M0C043_en
Downhill assist control sys-tem .............................. 380
Driving assist systems .. 382
Trailer brake controller .. 388
Trailer Backup Guide .... 391
4-6. Driving tips Hybrid Electric Vehicle driving tips............................... 396
Off-road precautions ..... 398
Winter driving tips ......... 401
5-1. Using the air conditioning
system and defogger
Automatic air conditioning system ......................... 406
Rear automatic air condition- ing system ................... 413
Heated steering wheel/seat heaters/seat ventilators 415
5-2. Using the interior lights Interior lights list ............ 418
5-3. Using the storage features List of storage features . 421
Luggage compartment fea- tures ............................ 425
5-4. Using the other interior fea- tures
Other interior features ... 428
Garage door opener...... 4416-1. Maintenance and care
Cleaning and protecting the vehicle exterior ............ 450
Cleaning and protecting the vehicle interior ............. 453
6-2. Maintenance Maintenance requirements.................................... 456
General maintenance .... 457
Emission inspection and maintenance (I/M) programs.................................... 460
6-3. Do-it-yourself maintenance Do-it-yourself service precau-tions ............................. 462
Hood .............................. 464
Engine compartment ..... 465
12-volt battery................ 471
Tires .............................. 474
Tire inflation pressure .... 484
Wheels .......................... 486
Air conditioning filter ...... 487
Cleaning the hybrid battery (traction battery) air intake
vent and filter ............... 489
Electronic key battery .... 493
Checking and replacing fuses .................................... 495
Light bulbs ..................... 498
5Interior features
6Maintenance and care

18Pictorial index
Owners Manual_USA_M0C043_en
Power switch ................................................... ................... P.212
Starting the hybrid system/changing the modes .................. P. 2 1 2
Emergency stop of the hybrid system ............................ ...... P.502
When the hybrid system will not start .......................... ........ P.532
Warning messages ............................................... ............... P.519
Multimedia system
*1
Air conditioning system ............................. ....................... P.406
Usage................................................................................... P.406
Rear window defogger ........................................... .............. P.408
Shift lever.................................................... ........................ P.217
Changing the shift position.................................... ............... P.218
Precautions for towing .. ....................................... ................ P.505
When the shift lever does not move............................. ........ P.218
Tilt and telescopic st eering control switch
*2/tilt and telescopic
steering lock release lever
*2P.158
Adjustment ..................................................... ...................... P.158
Driving position memory
*2.................................................... P.152
Hood lock release lever ........................................ ............. P.464
*1: Refer to “MULTIMEDIA OWNER’S MANUAL”.
*2: If equipped

781-4. Hybrid system
Owners Manual_USA_M0C043_enThe illustration is an example fo
r explanation and may differ from the actual
item.
Warning label
Service plug
Hybrid battery (traction battery)
High voltage cables (orange)
Electric motor (traction motor)
Air conditioning compressor
Power control unit
Hybrid system precautions
Take care when handling the hybrid system, as it is a high
voltage system as well as contains parts that become
extremely hot when the hybrid system is operating. Obey the
warning labels attached to the vehicle.
System components

2104-1. Before driving
Owners Manual_USA_M0C043_en
engine coolant temperature
gauge indicates overheating,
immediately turn off the air
conditioning (if in use), pull
your vehicle off the road and
stop in a safe spot. (P.543)
 Always place wheel blocks
under both the vehicle’s and
the trailer’s wheels when
parking. Apply the parking
brake firmly, and put the
transmission in P. Avoid park-
ing on a slope, but if unavoid-
able, do so only after
performing the following:
1 Apply the brakes and keep
them applied.
2 Have someone place wheel
blocks under both the vehi-
cle’s and trailer’s wheels.
3 When the wheel blocks are in
place, release the brakes
slowly until the blocks absorb
the load.
4 Apply the parking brake
firmly.
5 Shift into P and turn off the
hybrid system.
 When restarting after parking
on a slope:
1 With the transmission in P,
start the hybrid system. Be
sure to keep the brake pedal
pressed.
2 Shift into a forward gear. If
reversing, shift into R. 3
If the parking brake is in man-
ual mode, release the park-
ing brake. ( P.222)
4 Release the brake pedal, and
slowly pull or back away from
the wheel blocks. Stop and
apply the brakes.
5 Have someone retrieve the
blocks.
■Break-in schedule
If your vehicle is new or equipped
with any new power train compo-
nents (such as an engine, transmis-
sion, transfer [4WD models], rear
differential or wheel bearing), Toyota
recommends that y ou do not tow a
trailer until the vehicle has been
driven for over 500 miles (800 km).
After the vehicle has been driven for
over 500 miles (800 km), you can
start towing. However, for the next
500 miles (800 km), drive the vehi-
cle at a speed of less than 50 mph
(80 km/h) when towing a trailer, and
avoid full throttle acceleration.
■Maintenance
●If you tow a trailer, your vehicle
will require more fr equent mainte-
nance due to the additional load.
(See “Owner’s Warranty Informa-
tion Booklet” or “Scheduled Main-
tenance Guide” / “Owner’s Manual
Supplement”.)
●Retighten the fixing bolts of the
towing ball and bracket after
approximately 600 miles (1000
km) of tra iler towing.
■If trailer sway occurs
One or more factors (crosswinds,
passing vehicles, rough roads, etc.)
can adversely affect handling of
your vehicle and trailer, causing
instability.

2474-5. Using the driving support systems
Owners Manual_USA_M0C043_en
4
Driving
■If a warning message is displayed on the multi-information disp lay
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.
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.407)
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.

2964-5. Using the driving support systems
Owners Manual_USA_M0C043_en
■The system can be operated
when
●The power switch is in ON.
●Intuitive parking assist function is
on.
●The vehicle speed is less than
about 6 mph (10 km/h).
●A shift position other than P is
selected.
■If “Parking Assist Unavailable
Clean Parking Assist Sensor” is
displayed on the multi-informa-
tion display
A sensor may be covered with water
drops, ice, snow, d irt, etc. Remove
the water drops, ice, snow, dirt, etc.,
from the sensor to return the system
to normal.
Also, due to ice forming on a sensor
at low temperatures, a warning
message may be displayed or the
sensor may not be able to detect an
object. Once the ice melts, the sys-
tem will return to normal.
If a warning message is displayed
even if the sensor is clean, there
may be a sensor malfunction. Have
the vehicle inspected by your Toyota
dealer.
■If “Parking Assist Unavailable”
is displayed on the multi-infor-
mation display
Water may be continuously flowing
over the sensor surface, such as in
a heavy rain. When the system
determines that it is normal, the sys-
tem will return to normal.
■Sensor detection information
●The sensor’s detection areas are
limited to the areas around the
vehicle’ front and rear bumpers.
●The following situations may occur
during use.
• Depending on the shape of the object and other factors, the
detection distance may shorten, or
detection may be impossible.
• Detection may be impossible if
static objects draw too close to the
sensor.
• There will be a short delay
between static object detection
and display (warning buzzer
sounds). Even at low speeds,
there is a possibility that the object
will come within 11.9 in. (30 cm)
before the display is shown and
the warning buzzer sounds.
• It might be diffic ult to hear the
buzzer due to the volume of the
audio system or air flow noise of
the air conditioning system.
• It may be diffi cult to hear the
sound of this sys tem due to the
buzzers of other systems.
■Objects which the system may
not be properly detected
The shape of the object may pre-
vent the sensor from detecting it.
Pay particular attent ion to the follow-
ing objects:
WARNING
●When using a high pressure
washer to wash the vehicle, do
not spray the sensors directly,
as doing so may cause a sensor
to malfunction.
●When using steam to clean the
vehicle, do not direct steam too
close to the sensors as doing so
may cause a sens or to malfunc-
tion.

3064-5. Using the driving support systems
Owners Manual_USA_M0C043_en
●When equipment that may
obstruct a sensor is installed, such
as a towing eyelet, bumper pro-
tector (an additional trim strip,
etc.), bicycle carrier, or snow plow
●When a vehicle passes by the
side of your vehicle
●When a detected vehicle turns
while approaching the vehicle
●When there are spinning objects
near your vehicle such as the fan
of an air conditioning unit
●When water is splashed or
sprayed toward t he rear bumper,
such as from a sprinkler
●Moving objects (flags, exhaust
fumes, large rain droplets or
snowflakes, rain water on the road
surface, etc.)
●When the distanc e between your
vehicle and a guardr ail, wall, etc.,
that enters the detection area is
short
●Gratings and gutters
●When a sensor or the area around
a sensor is extremely hot or cold
●If the suspension has been modi-
fied or tires of a size other than
specified are installed
●If the front of the v ehicle is raised
or lowered due to the carried load

3684-5. Using the driving support systems
Owners Manual_USA_M0C043_enfuel economy through moderate
throttle characteri
stics and by con-
trolling the operation of the air con-
ditioning system (heating/cooling).
The “ECO” indicator comes on.
• “SPORT S” mode
Assists accelerati on response by
controlling the transmission, engine
and steering. Suitable for when pre-
cise handling is desirable, for
example when driving on mountain
roads. The “SPORT S” indicator
comes on.
• “SPORT S+” mode
Helps to ensure th e controllability
and stability of the vehicle by inte-
grally controlling the steering wheel
and suspensions as well as the
transmission and engine, making it
suitable for sporty driving. The
“SPORT S+” indicator comes on.
• “CUSTOM” mode
Allows you to drive with the power
train, chassis and air conditioning
system functions set to your pre-
ferred settings. Custom mode set-
tings can only be changed on the
drive mode customization display of
multimedia system. The “CUSTOM”
indicator comes on.
■The driving mode select switch
can be operated when
The front-wheel dri ve control switch
is in “2H” and “4H”.
■Operation of the air condition-
ing system in Eco mode
Eco mode controls the heating/cool-
ing operations and fan speed of the
air conditioning system to enhance
fuel efficiency. To improve air condi-
tioning performance, perform the
following operations:
●Adjust the fan speed ( P.407)
●Turn off Eco drive mode ( P.366)
■Automatic deactivation of driv-
ing modes:
Driving mode is deactivated or the
driving mode will be changed to nor-
mal mode in the following condi-
tions:
●After turning the power switch off
and then turning it to on
●When the front-wheel drive control
switch is in “4L” (4WD models
only)
●When the Multi-terrain Select is
turned on (if equipped)
●When the Downhill assist control
system is turned on (if equipped)
●When the “TOW HAUL” mode or
“TOW+” mode is turned on
■Customization
The Custom mode can be changed.
(Customizable features: P.580)