2023 TOYOTA SEQUOIA HYBRID maintenance

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Owners Manual_USA_M0C043_en
Pictorial indexSearch by illustration
For safety
and securityMake sure to read through them
(Main topics: Child seat, theft deterrent system)
Vehicle status
information and
indicatorsReading driving-related information
(Main topics: Meters, multi-information display)
Before driving
Opening and closing the doors and windows,
adjustment before driving
(Main topics: Keys, doors, seats)
Driving
Operations and advice which are necessary for
driving
(Main topics: Starting hybrid system, refueling)
Interior featuresUsage of the interior features
(Main topics: Air conditioner, storage features)
Maintenance
and careCaring for your vehicle and maintenance
procedures
(Main topics: Interior and exterior, light bulbs)
When trouble
arisesWhat to do in case of malfunction and emergency
(Main topics: 12-volt battery discharge, flat tire)
Vehicle
specificationsVehicle specifications, customizable features
(Main topics: Fuel, oil, tire inflation pressure)
For ownersReporting safety defects for U.S. owners, seat belt
and SRS airbag instructions for Canadian owners
IndexSearch by symptom
Search alphabetically

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

5TABLE OF CONTENTS
Owners Manual_USA_M0C043_en
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7-1. Essential information Emergency flashers ...... 502
If your vehicle has to be stopped in an emergency.................................... 502
If the vehicle is submerged or water on the road is rising.................................... 503
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed........................... 505
If you think something is wrong .......................... 507
If a warning light turns on or a warning buzzer sounds 509
If a warning message is dis- played.......................... 519
If you have a flat tire...... 523
If the hybrid system will not start ............................. 532
If you lose your keys ..... 534
If the fuel door cannot be opened ........................ 534
If the electronic key does not operate properly .......... 535
If the vehicle 12-volt battery is discharged................... 538
If your vehicle overheats 543
If the vehicle becomes stuck .................................... 5468-1. Specifications
Maintenance data (fuel, oil level, etc.) .................... 548
Fuel information............. 558
Tire information ............. 560
8-2. Customization Customizable features... 570
8-3. Initialization Items to initialize ............ 581
9-1. For owners Reporting safet y defects for
U.S. owners ................. 584
Reporting safet y defects for
Canadian owners ........ 584
Seat belt instructions for Canadian owners (in
French) ........................ 585
SRS airbag instructions for Canadian owners (in
French) ........................ 587
What to do if... (Troubleshoot- ing) .............................. 596
Alphabetical Index ......... 599
7When trouble arises8Vehicle specifications
9For owners
Index

771-4. Hybrid system
Owners Manual_USA_M0C043_en
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For safety and security
■Charging the 1 2-volt battery
 P. 5 4 0
■After the 12-volt battery has dis-
charged or when the terminal
has been removed and installed
during exchange, etc.
The gasoline engine may not stop
even if the vehicle is being driven by
the hybrid battery (traction battery).
If this continues for a few days, con-
tact your Toyota dealer.
■Sounds and vibrations specific
to a Hybrid Electric Vehicle
There may be no engine sound or
vibration even though the vehicle is
able to move with the “READY” indi-
cator is illuminated. For safety, apply
the parking brake and make sure to
shift the shift lever to P when
parked.
The following sounds or vibrations
may occur when the hybrid system
is operating and are not a malfunc-
tion:
●Motor sounds may be heard from
the engine compartment.
●Sounds may be heard from the
hybrid battery (traction battery)
under the rear seats when the
hybrid system starts or stops.
●Relay operating sounds such as a
snap or soft clank will be emitted
from the hybrid battery (traction
battery), under the rear seats,
when the hybrid system is started
or stopped.
●Sounds may be heard from the
transmission when the gasoline
engine starts or stops, when driv-
ing at low speeds, or during idling.
●Engine sounds may be heard
when accelerating sharply.
●Sounds may be heard due to
regenerative braking when the
brake pedal is dep ressed or as
the accelerator pedal is released.
●Vibration may be felt when the
gasoline engine starts or stops.
●Cooling fan sounds may be heard
from the air intake vents on the
both sides of th e behind the sec-
ond seat.
■Maintenance, repair, recycling,
and disposal
Contact your Toyota dealer regard-
ing maintenance, repair, recycling
and disposal. Do n ot dispose of the
vehicle yourself.
When the gasoline engine is off
while driving, a sound is pro-
duced to warn pedestrians, peo-
ple riding bicycles or other
people and vehicles in the sur-
rounding area that the vehicle is
approaching. The pitch of the
sound adjusts according to vehi-
cle speed. When vehicle speed
is approximately 22 mph (35
km/h) or more, the warning sys-
tem turns off.
■Acoustic vehicle alerting sys-
tem
In the following cases, the acoustic
vehicle alerting system sound may
be difficult for pedestrians, people
riding bicycles or other people and
vehicles in the surrounding area to
hear:
●When there is a lot of noise in the
vicinity
●When it is raining or during strong
winds
Acoustic vehicle alerting
system

831-5. Theft deterrent system
Owners Manual_USA_M0C043_en
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For safety and security
1-5.Theft deterrent system
The indicator light flashes after
the power switch has been
turned off to indicate that the
system is operating.
The indicator light stops flashing
after the power switch has been
turned to ACC or ON to indicate
that the system has been can-
celed.
■System maintenance
The vehicle has a maintenance-free
type immobilizer system.
■Conditions that may cause the
system to malfunction
●If the grip portion of the key is in
contact with a metallic object
●If the key is in close proximity to or
touching a key to the security sys-
tem (key with a built-in transpon-
der chip) of another vehicle
■Certification
 P.618
Immobilizer system
The vehicle’s keys have
built-in transponder chips
that prevent the hybrid sys-
tem from starting if a key
has not been previously
registered in the vehicle’s
on-board computer.
Never leave the keys inside
the vehicle when you leave
the vehicle.
This system is designed to
help prevent vehicle theft
but does not guarantee
absolute security against all
vehicle thefts.
Operating the system
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.

841-5. Theft deterrent system
Owners Manual_USA_M0C043_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 moon
roof (if equipped) or 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, back door,
glass hatch and hood, and lock all the doors. The system will be
set automatically after 30 sec-
onds.
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 or open the
back door using the entry
function or wireless remote
control.
 Start the hybrid system. (The
alarm is activated and will be
released/stopped after a few
seconds.)
If the alarm does not stop,
turn the power switch to OFF
and unlock the door using the
wireless remote control. If it
still does not stop, keep the
power switch OFF and wait
until it stops.
■Setting the alarm
The alarm can be set if all the doors
are closed even with the hood open.
■System maintenance
The vehicle has a maintenance-free
type alarm system.
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, back door or
glass hatch is unlocked or
opened in any way other
than using the entry func-
tion or wireless remote con-
trol. (The doors will lock
again automatically.)
The hood is opened.
Setting/deactivating/stop-
ping the alarm system

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.

4004-6. Driving tips
Owners Manual_USA_M0C043_en
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”.