engine overheat TOYOTA SEQUOIA HYBRID 2023 Owners Manual

15Pictorial index
Owners Manual_USA_M0C043_en
Defogging the mirrors .......................................... ................ P.408
Windshield wipers.............................................. ................ P.235
Rear window wiper .............................................. .............. P.239
Precautions for winter seas on.............................................. P.401
To prevent freezing (windshield wiper de-icer)
*.................... P.411
Precautions for car wash (vehicles with rain-sensing windshield wip-
ers)
*...................................................................................... P.451
Fuel filler door ............................................... ..................... P.241
Refueling method ............................................... .................. P.241
Fuel type/fuel tan k capacity ................................... .............. P.550
Tires.......................................................... ........................... P.474
Tire size/inflation pressure ................................... ................ P.555
Winter tires/tire chains ....................................... .................. P.401
Checking/rotation/tire pressur e warning system ..................P.474
Coping with flat tires......................................... .................... P.523
Hood ........................................................... ......................... P.464
Opening ............................................................................... P.464
Engine oil ..................................................... ........................ P.551
Coping with overheating ...................................................... P.543
Headlights..................................................... ...................... P.228
Parking lights ................................................. .................... P.228
Turn signal lights ............................................. .................. P.221
Daytime running lights .. .................................................... P.228
Head lights/daytime running lights ............................. ..... P.228
Turn signal lights ............................................. .................. P.221
Parking lights ................................................. .................... P.228
Side marker lights
*............................................................. P. 228
Light bulbs of the exterior lights for driving
(Replacing method: P.498, Watts: P.557)

952-1. Instrument cluster
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2
Vehicle status information and indicators
■Display items
 Odometer
Displays the total distance the vehi-
cle has been driven.
 Trip meter A/Trip meter B
Displays the distance the vehicle
has been driven since the meter
was last reset. Trip meters A and B
can be used to record and display
different distances independently.
Distance until next engine oil
change
Displays the distance the vehicle
can be driven until an oil change is
necessary.
■Changing the display
Each time the “ODO TRIP”
switch is pressed, the displayed
item will be changed. When the
trip meter is displayed, pressing
and holding the switch will reset
the trip meter.
WARNING
For example, there is a lag
between the driver’s shifting and
the new gear number appearing
on the display. This lag could
cause the driver to downshift
again, causing rapid and exces-
sive engine braking and possibly
an accident resulting in death or
injury.
NOTICE
■To prevent damage to the
engine and its components
●Do not let the i ndicator needle
of the tachomete r enter the red
zone, which indicates the maxi-
mum engine speed.
●The engine may be overheating
if the engine coolant tempera-
ture gauge is in the red zone
(H). In this case, immediately
stop the vehicle in a safe place,
and check the engine after it
has cooled completely.
(  P.543)
■Voltmeter
When the voltmeter indicates 19
V or higher or 9 V or lower while
the hybrid system is operating,
there may be a 12- volt battery or
charging system malfunction.
Have the vehicle inspected at
your Toyota dealer.
■Engine oil pressure gauge
When the value of the engine oil
pressure gauge drops while the
engine is running, stop the vehicle
in a safe place immediately and
check the amoun t of engine oil.
(  P.466)
When the oil pressure drops even
though the engine oil amount has
not decreased, or i f the oil pres-
sure does not increase when
engine oil is added, contact your
Toyota dealer, as there may be a
problem with the lubrication sys-
tem.
Odometer and trip meter
display

1914-1. Before driving
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4
Driving
WARNING
●If the vehicle is stopped on an
incline, in order to prevent acci-
dents caused by the vehicle roll-
ing forward or backward, always
depress the brake pedal and
securely apply the parking
brake as needed.
●Avoid revving or racing the
engine.
Running the engine at high
speed while the vehicle is
stopped may cause the exhaust
system to overheat, which could
result in a fire if combustible
material is nearby.
■When the vehicle is parked
●Do not leave glasses, cigarette
lighters, spray cans, or soft
drink cans in the vehicle when it
is in the sun.
Doing so may result in the fol-
lowing:
• Gas may leak from a cigarette lighter or spray can, and may
lead to a fire.
• The temperature inside the vehicle may cause the plastic
lenses and plastic material of
glasses to deform or crack.
• Soft drink cans may fracture, causing the contents to spray
over the interior of the vehicle,
and may also caus e a short cir-
cuit in the vehicle’s electrical
components.
●Do not leave cigarette lighters in
the vehicle. If a cigarette lighter
is in a place such as the glove
box or on the floor, it may be lit
accidentally when luggage is
loaded or the seat is adjusted,
causing a fire.
●Do not attach adhesive discs to
the windshield or windows. Do
not place containers such as air
fresheners on the instrument
panel or dashboard. Adhesive
discs or containers may act as
lenses, causing a fire in the
vehicle.
●Do not leave a door or window
open if the curved glass is
coated with a metallized film
such as a silver-colored one.
Reflected sunlight may cause
the glass to act a s a lens, caus-
ing a fire.
●Always apply the parking brake,
shift the shift lever to P, stop the
hybrid system and lock the vehi-
cle. Do not leave the vehicle
unattended while the hybrid
system is operating.
If the vehicle is parked with the
shift lever in P but the parking
brake is not set, the vehicle may
start to move, possibly leading
to an accident.
●Do not touch the exhaust pipes
while the “READY” indicator is
illuminated or immediately after
turning the hybrid system off.
Doing so may cause burns.
●4WD models: If the shift lever is
moved before the “4L” indicator
turns on/off, the transfer mode
may not be shifted completely.
The transfer mode disengages
both the front and rear drivesh-
afts from the p owertrain and
allows the vehicle to move
regardless of the shift position.
(At this time, the indicator blinks
and the buzzer sounds.)
Therefore, the vehicle is free to
roll even if the automatic trans-
mission is in P. You or someone
else could be seriously injured.
You must complete the shifting
of the transfer mode. ( P.369)

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.

2404-3. Operating the lights and wipers
Owners Manual_USA_M0C043_en
■Reverse-linked function
When the shift lever is shifted to R
when the front wipers are operating,
the rear window wiper will operate
once.
■Customization
Some functions can be customized.
(Customizable features: P.570)
NOTICE
■When the washer fluid tank is
empty
Do not operate the switch continu-
ally as the washer fluid pump may
overheat.
■When a nozzle becomes
blocked
In this case, contact your Toyota
dealer.
Do not try to clear it with a pin or
other object. The nozzle will be
damaged.
■To prevent battery discharge
Do not leave the wiper on longer
than necessary when the engine
is not running.

3854-5. Using the driving support systems
Owners Manual_USA_M0C043_en
4
Driving
●The accelerator pedal is
depressed
●The parking brake is engaged
●A maximum of 2 seconds have
elapsed after the brake pedal is
released
●The power switch is turned to OFF
■Sounds and vibrations caused
by the ABS, brake assist, VSC,
Trailer Sway Control, TRAC and
hill-start assist control systems
●A sound may be heard from the
hybrid system compartment when
the brake pedal is depressed
repeatedly, when the hybrid sys-
tem is started or just after the vehi-
cle begins to move. This sound
does not indicate that a malfunc-
tion has occurred in any of these
systems.
●Any of the following conditions
may occur when t he above sys-
tems are operating. None of these
indicates that a malfunction has
occurred.
• Vibrations may be felt through the
vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
■ECB operating sound
ECB operating sound may be heard
in the following cases, but it does
not indicate that a malfunction has
occurred.
●Operating sound heard from the
engine compartment when the
brake pedal is operated.
●Motor sound of the brake system
heard from the front part of the
vehicle when the driver’ door is
opened.
●Operating sound heard from the
engine compartment when one or
two minutes passed after the stop
of the hybrid system.
■EPS operation sound
When the steering wheel is oper-
ated, a motor sou nd (whirring sound) may be heard. This does not
indicate a malfunction.
■Automatic reactivation of
TRAC, Trailer Sway Control and
VSC systems
After turning the TRAC, Trailer
Sway Control and VSC systems off,
the systems will be a utomatically re-
enabled in the following situations:
●When the power switch is turned
off
●If only the TRAC sy stem is turned
off, the TRAC will turn on when
vehicle speed increases
If both the TRAC and VSC sys-
tems are turned of f, automatic re-
enabling will not occur when vehi-
cle speed increases.
■Reduced effectiveness of the
EPS system
The effectiveness of the EPS sys-
tem is reduced to prevent the sys-
tem from overheating when there is
frequent steering input over an
extended period o f time. The steer-
ing wheel may f eel heavy as a
result. Should this occur, refrain
from excessive steering input or
stop the vehicle a nd turn the hybrid
system off. The EPS system should
return to normal within 10 minutes.
■Secondary Collision Brake
operating conditions
The system operates when the SRS
airbag sensor de tects a collision
while the vehicle is in motion. How-
ever, the system does not operate
when the components are dam-
aged.
■Secondary Collision Brake
automatic cancelation
The system is automatically can-
celed in any of th e following situa-
tions.
●The vehicle speed drops to
approximately 0 mph (0 km/h).
●A certain amount of time elapses
during operation

5097-2. Steps to take in an emergency
Owners Manual_USA_M0C043_en
7
When trouble arises
■Brake system warning light (warning buzzer)
■Brake system warning light (warning buzzer)
■High coolant temperature warning light*
*: This light illuminates on the mu lti-information display with a message.
If a war ning light tur ns on or a war ning buzzer
sounds
Calmly perform the following actions if any of the warning
lights comes on or flashes. If a light comes on or flashes, but
then goes off, this does not necessarily indicate a malfunc-
tion in the system. However, if this continues to occur, have
the vehicle inspected by your Toyota dealer.
Actions to the warning lights or warning buzzers
Warning lightDetails/Actions
(U.S.A.)
or
(Red)
(Canada)
Indicates that:
 The brake fluid level is low; or
 The brake system is malfunctioning
 Immediately stop the vehicle in a safe place and con-
tact your Toyota dealer. C ontinuing to drive the vehi-
cle may be dangerous.
Warning lightDetails/Actions
(Yellow)
Indicates a malfunction in:
 The parking brake system;
 The regenerative braking system; or
 The electronically controlled brake system
 Have the vehicle inspecte d by your Toyota dealer
immediately.
Warning lightDetails/Actions
Indicates that the engine is overheating
 Immediately stop the v ehicle in a safe place.
Handling method ( P.543)

5437-2. Steps to take in an emergency
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7
When trouble arises
■If the engine coolant tem-
perature gauge enters the
red zone or “Engine Cool-
ant Temp High Stop in a
Safe Place See Owner’s
Manual” is shown on the
multi-information display
1 Stop the vehicle in a safe
place and turn off the air con-
ditioning system, and then
stop the hybrid system.
2 If you see steam:
Carefully lift the hood after
the steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the hybrid system has
cooled down sufficiently,
inspect the hoses, engine
radiator core (radiator) and
intercooler radiator core
(radiator) for any leaks.
If a large amount of coolant leaks,
immediately cont act your Toyota dealer.
Cooling fan
Radiator
Intercooler radiators
4 The coolant level is satisfac-
tory if it is between the “F” or
“FULL” and “L” or “LOW”
lines on the reservoir.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
The needle of the engine coolant temperature gauge ( P.93)
enters the red zone or a loss of engine (hybrid system) power i s
experienced. (For example, the vehicle speed does not
increase.)
 “Engine Coolant Temp High Stop in a Safe Place See Owner’s
Manual” is shown on the multi-information display.
Steam comes out from under the hood.
Correction procedures

Owners Manual_USA_M0C043_en
Alphabetical Index601
Panoramic moon roof ........... 182
Power window lock switch.... 176
Power window precautions .. 175
Rear door child-protectors.... 118
Removed electronic key battery precautions......................... 494
Seat belt extender precautions ............................................. 30
Seat belt precautions ............. 53
Child-protectors .. ................... 118
Cleaning .......................... 450, 453 Aluminum wheel ornaments . 450
Aluminum wheels ................. 450
Digital Rear-view Mirror........ 165
Exterior ................................. 450
Interior .................................. 453
Radar sensor........................ 245
Seat belts ............................. 453
Clock ......................................... 93
Coat hooks .............................. 434
Condenser .............................. 469
Console box ............................ 424
Console box light ................... 418
Consumption screen.............. 108
Coolant .................................... 468 Checking .............................. 468
Cooling system ...................... 468 Engine overheating .............. 543
Coussins gonflables Modification et é limination en fin
de vie des coussins gonflables ........................................... 593
Crawl Control .......................... 373
Cruise control Dynamic radar cruise control with full-speed range .......... 275
Cup holders ............................ 422
Current fuel consumption ....... 99
Curtain shield airbags ............. 37
Customizable features ........... 570D
DAC ..........................................380
Daytime running light system228
Daytime running lights Replacing light bulbs ............498
Deck divider ............................426
Defogger Outside rear view mirrors .....408
Rear window.........................408
Windshield ............................407
Differential ...............................554
Digital Rear-view Mirror .........160
Dimension ...............................548
Dinghy towing ......................... 211
Display Dynamic radar cruise control with full-speed range ..........275
Head-up display ...................104
Intuitive parking assist ..........294
LTA (Lane Tracing Assist) .....267
Multi-information display.........97
Warning messages ...............519
Display change button .............95
Distance until next engine oil change .....................................95
Do-it-yourself maintenance ...457
Door courtesy lights...............418
Door lock Back door .............................122
Side doors ............................ 115
Smart key system .................139
Wireless remote control........ 113

Owners Manual_USA_M0C043_en
Alphabetical Index603
If you have a flat tire ............. 523
If you lose your keys ............ 534
If you think something is wrong........................................... 507
If your vehicle becomes stuck ........................................... 546
If your vehicle has to be stopped in an emergency................. 502
If your vehicle needs to be towed ........................................... 505
If your vehicle overheats ...... 543
Engine ..................................... 550 ACC...................................... 215
Compartment ....................... 465
How to start the hybrid system........................................... 212
If the hybrid sy stem will not start
........................................... 532
If your vehicle has to be stopped in an emergency................. 502
Overheating.......................... 543
Power switch ........................ 212
Engine coolant ....................... 468 Capacity ............................... 552
Checking .............................. 468
Preparing and c hecking before
winter.................................. 401
Engine coolant temperature gauge....................................... 93
Engine oil Capacity ............................... 551
Checking .............................. 466
Warning light ........................ 510
Engine oil pressure gauge ...... 93
Engine switch (power switch)212 Auto power off function ........ 216
Changing the power switch modes ................................ 215
If your vehicle has to be stopped in an emergency................. 502
Starting the hybrid system.... 212 Enhanced Vehicle Stability Con-
trol (Enhanced VSC ) .............383
Enhanced VSC (Enhanced Vehi- cle Stability Control).............383
EPS (Electric Po wer Steering)
...............................................383 Warning light......................... 511
Event data recorder (EDR) .........8
F
Flat tire.....................................523 Tire pressure w arning system
...........................................476
Floor mats .................................26
Fluid Automatic transm ission ........553
Brake ....................................554
Washer .................................470
Fog light Replacing light bulbs ............498
Switch ...................................231
Footwell lights ........................418
Four-wheel drive system .......369
Front fog light Replacing light bulbs ............498
Front passenger occupant clas- sification system ....................47
Front seats ..............................144 Adjustment ...........................144
Cleaning ...............................453
Correct driving posture ...........27
Driving position memory .......152
Head restraints .....................155
Memory recall function .........154
Power easy access system ..152
Seat heaters ....... ..................415
Seat position memory...........152
Seat ventilators.....................415