warning light TOYOTA SEQUOIA HYBRID 2023 Service Manual

1994-1. Before driving
Owners Manual_USA_M0C043_en
4
Driving
■Trailer brake controller
 P. 3 8 8
■Before towing
Check that the following conditions
are met:
●Ensure that your vehicle’s tires
are properly inflated. ( P.555)
●Trailer tires are inflated according
to the trailer manufacturer’s rec-
ommendation.
●All trailer lights work as required
by law.
●All lights work each time you con-
nect them.
●The trailer ball is set at the proper
height for the coupler on the
trailer.
●The trailer is level when it is
hitched. Do not dri ve if the trailer
is not level, and check for
improper tongue weight, overload-
ing, worn suspension, or other
possible causes.
●The trailer cargo is securely
loaded.
●The rear view mirrors conform to
all applicable federal, state/provin-
cial or local regu lations. If they do
not, install rear view mirrors
appropriate for towing purposes.
Contact your Toyota dealer for
further information about addi-
tional requirements such as a
towing kit, etc.WARNING
■Trailer towing precautions
●To tow a trailer safely, use
extreme care and drive the vehi-
cle in accordance with the
trailer’s characteristics and
operating conditions. Failure to
do so could cause an accident
resulting in death or serious
injury. Vehicle stability and brak-
ing performance are affected by
trailer stability, brake setting and
performance, and the hitch.
Your vehicle will handle differ-
ently when towing a trailer.
●Vehicles with electronically
modulated air suspension: Set
the vehicle height to the “N”
mode and turn off the rear
height control air suspension
when you connect a trailer, oth-
erwise the vehicle height may
change due to the automatic
leveling function, and you may
catch part of your body in the
vehicle.
■To avoid accident or injury
●Do not exceed the TWR,
unbraked TWR, GCWR, GVWR
or GAWR.
●If the gross trailer weight is over
2000 lb. (900 kg), a sway con-
trol device with sufficient capac-
ity is required.
●If the gross trailer weight is over
5000 lb. (2200 kg), a weight dis-
tributing hitch with sufficient
capacity is required.
●Adjust the tongue weight within
the appropriate range. Place
heavier loads as close to the
trailer axle as possible.

2044-1. Before driving
Owners Manual_USA_M0C043_en
Weight/Gross trailer weight x
100 = 9% to 11%)Gross trailer weight
Tongue Weight
If using a weight distributing hitch
when towing, return the front axle to
the same weight as before the
trailer connection.
If front axle weight cannot be mea-
sured directly, measure the front
fender height above the front axle
before connection. Adjust weight
distributing hitch torque until front
fender is returned to the same
height as before connection.
Do not reduce front fender height
below original measurement.
The gross trailer weight, gross axle
weight and tongue weight can be
measured with platform scales
found at a highway weighing sta-
tion, building supply company,
trucking company, junk yard, etc.
Trailer hitch assemblies have
different weight capacities. Toy-
ota recommends the use of Toy-
ota hitch/bracket for your
vehicle. For details, contact your Toyota dealer.

If you wish to install a trailer
hitch, contact your Toyota
dealer.
 Use only a hitch that con-
forms to the gross trailer
weight requirement of your
vehicle.
 Follow the directions supplied
by the hitch manufacturer.
 Lubricate the hitch ball and
kingpin with a light coating of
grease.
 Remove the hitch ball when-
ever you are not towing a
trailer. Remove the trailer
hitch if you do not need it.
After removing the hitch, seal
any mounting holes in the
vehicle body to prevent entry
of any substances into the
vehicle.
Hitch
WARNING
■Hitch
Trailer hitch assemblies have dif-
ferent weight capacities estab-
lished by the hitch manufacturer.
Even though the vehicle may be
physically capable of towing a
higher weight, the operator must
determine the maximum weight
rating of the particular hitch
assembly and never exceed the
maximum weight rating specified
for the trailer-hitch. Exceeding the
maximum weight rating set by the
trailer-hitch manufacturer can
cause an accident resulting in
death or serious personal injuries.

2144-2. Driving procedures
Owners Manual_USA_M0C043_en
1Stop the vehicle completely.
2 Set the parking brake
( P.222), and shift the shift
lever to P.
Check the parking brake indicator
is illuminated.
3 Press the power switch
shortly and firmly.
The hybrid system will stop, and the
meter display will be extinguished.
4Release the brake pedal and
check that “ACCESSORY” or
“IGNITION ON” is not shown
on the meter.
■Automatic hybrid system shut
off feature
●The vehicle is equipped with a
feature that automatically shuts off
the hybrid system when the shift
lever is in P with the hybrid system
operating for an extended period.
●The hybrid system will automati-
cally shut off after approximately 1
hour if it has been left running
while the shift lever is in P.
●The timer for the automatic hybrid
system shut off feature will reset if
the brake pedal is depressed or if
the shift lever is in a position other than P.
●After the vehicle
is parked, if the
door is locked with the door lock
switch ( P.118) from the inside or
the mechanical key ( P.114) from
the outside, the automatic hybrid
system shut off feature will be dis-
abled. The timer for the automatic
hybrid syste m shut off feature will
be re-enabled if the driver’s door
is opened.NOTICE
■Symptoms indicating a mal-
function with the power
switch
If the power switch seems to be
operating somewh at differently
than usual, such as the switch
sticking slightly, there may be a
malfunction. Contact your Toyota
dealer immediately.
Stopping the hybrid sys-
temWARNING
■Stopping the hybrid system
in an emergency
●If you want to stop the hybrid
system in an emergency while
driving the vehicle, press and
hold the power s witch for more
than 2 seconds, or press it
briefly 3 times or more in suc-
cession. ( P.502)
However, do not touch the
power switch while driving
except in an emergency. Turn-
ing the hybrid s ystem off while
driving will not cause loss of
steering or braking control, but
the power assist to these sys-
tems will be lost. This will make
it more difficult to steer and
brake, so you should pull over
and stop the vehicle as soon as
it is safe to do so.
●If the power switch is operated
while the vehicle is running, a
warning message will be shown
on the multi-information display
and a buzzer sounds.
●To restart the hybrid system
after performing an emergency
shutdown, shift the shift lever to
N and then pre ss the power
switch.

2154-2. Driving procedures
Owners Manual_USA_M0C043_en
4
Driving
Modes can be changed by
pressing the power switch with
the brake pedal released. (The
mode changes each time the
switch is pressed.) “ACCESSORY”
“IGNITION ON”
1 OFF
*
The emergency flashers can be
used.
The multi-information display will
not be displayed.
2ACC
Some electrical components such
as the audio sys tem can be used.
“ACCESSORY” will be displayed
on the meter.
3 ON
All electrical components can be
used.
“IGNITION ON” will be displayed on
the meter.
*: If the shift lever is in a position
other than P when turning off the
hybrid system, the power switch
will be remained to ON, not to
OFF.
WARNING
■When parking
Exhaust gases include harmful
carbon monoxide (CO), which is
colorless and odorless. Observe
the following precautions.
Failure to do so may cause
exhaust gases to enter the vehicle
and may lead to an accident
caused by light-headedness, or
may lead to death or a serious
health hazard.
●If the vehicle is in a poorly venti-
lated area or a closed area,
such as a garage, stop the
hybrid system.
●Do not leave the vehicle with
the hybrid system operating for
a long time. If such a situation
cannot be avoided, park the
vehicle in an open space and
ensure that exhaust fumes do
not enter the vehicle interior.
●Do not leave the hybrid system
operating in an area with snow
build-up, or where it is snowing.
If snowbanks build up around
the vehicle while the hybrid sys-
tem is operating, exhaust gases
may collect and enter the vehi-
cle.
Changing power switch
modes

2244-2. Driving procedures
Owners Manual_USA_M0C043_enavailable.
■Parking brake automatic
release function
The parking brake will be released
automatically when the accelerator
pedal is slowly depressed under the
following conditions:
●The driver’s door is closed
●The driver is wearing the seat belt
●The shift lever is in a forward or
reverse position.
●The malfunction in dicator lamp or
brake system warning light is not
illuminated
If the automatic release function
does not operate, release the park-
ing brake manually.
■Parking brake automatic lock
function
The parking brake will be set auto-
matically under the following condi-
tions:
●The driver does not operate the
brake pedal
●The driver’s doo r is not closed
●The driver is not wearing the seat
belt
●The shift lever position is not in P
or N
●The malfunction in dicator lamp or
brake system warning light is not
illuminated
■If “Parking Brake Temporarily
Unavailable” i s displayed on
the multi-information display
If the parking brake is operated
repeatedly over a short period of
time, the system may restrict opera-
tion to prevent overheating. If this
happens, refrain from operating the
parking brake. Nor mal operation will
return after about 1 minute.
■If “Parking Brake Unavailable”
is displayed on the multi-infor-
mation display
Operate the parking brake switch. If the message does not disappear
after operating the switch several
times, the system may be malfunc-
tioning. Have the vehicle inspected
by your Toyota dealer.
■Parking brake operation sound
When the parking brake operates, a
motor sound (whirr ing sound) may
be heard. This does not indicate a
malfunction.
■Parking brake indicator light
●Depending on the power switch
mode, the parking brake indicator
light will turn on and stay on as
described below:
ON: Comes on until the parking
brake is released.
Not in ON: Stays on for approxi-
mately 15 seconds.
●When the power switch is turned
to OFF with the parking brake set,
the parking brake indicator light
will stay on for abo ut 15 seconds.
This does not indicate a malfunc-
tion.
■When the parking brake switch
malfunctions
Automatic mode (automatic brake
setting and releas ing) will be turned
on automatically.
■Parking the vehicle
 P.187
■Parking brake engaged warning
buzzer
A buzzer will sound if the vehicle is
driven with the parking brake
engaged. “Parking Brake ON” is dis-
played on the multi-information dis-
play (with the vehicle reaching a
speed of 3 mph [5 km/h]).
■If the brake system warning
light comes on
 P.509
■Usage in winter time
 P.402

2264-2. Driving procedures
Owners Manual_USA_M0C043_en
●The driver is not wearing the seat
belt.
●The parking brake is engaged.
If any of the conditions above are
detected when the brake hold sys-
tem is enabled, the system will turn
off and the brake hold standby indi-
cator light will go of f. In addition, if
any of the conditions are detected
while the system is holding the
brake, a warning buzzer will sound
and a message will be shown on the
multi-information display. The park-
ing brake will then be set automati-
cally.
■Brake hold function
●If the brake pedal is left released
for a period of about 3 minutes
after the system has started hold-
ing the brake, the parking brake
will be set automat ically. In this
case, a warning buzzer sounds
and a message is shown on the
multi-informat ion display.
●To turn the system off while the
system is holding the brake, firmly
depress the brake pedal and
press the button again.
●The brake hold function may not
hold the vehicle wh en the vehicle
is on a steep inclin e. In this situa-
tion, it may be necessary for the
driver to apply the brakes. A warn-
ing buzzer will sound and the
multi-informatio n display will
inform the driver of this situation. If
a warning message is shown on
the multi-information display, read
the message and follow the
instructions.
■When the parking brake is set
automatically while the system
is holding the brakes
Perform any of the following opera-
tions to release the parking brake:
●Depress the accelerator pedal.
(The parking brake is not released
if the seat belt is not fastened,
door is open, and/or the shift lever
is in P or N.)
●Operate the parkin g brake switch
with the brake pedal depressed.
Make sure that the parking brake
indicator light goes off. ( P.222)
■When an inspection at your
Toyota dealer is necessary
When the brake hold standby indi-
cator (green) does not illuminate
even when the brake hold switch is
pressed with the brake hold system
operating conditions met, the sys-
tem may be malf unctioning. Have
the vehicle inspected at your Toyota
dealer.
■If “Brake Hold Malfunction
Press Brake to Deactivate Visit
Your Dealer” or “Brake Hold
Malfunction Visit Your Dealer”
is displayed on the multi-infor-
mation display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■Warning messages and buzzers
Warning messages and buzzers are
used to indicate a system malfunc-
tion or to inform the driver of the
need for caution. If a warning mes-
sage is shown on the multi-informa-
tion display, read the message and
follow the instructions.
■When another control activates
with the brake hold system
A message is displayed on the
multi-information display in any of
the following cases.
●“Brake Hold Unavailable, See the
Owner’s Manual”
• When the brake hold switch is
pressed while the downhill assist
control system is activated.
• When the brake hold switch is
pressed while the front-wheel
drive control switch is turned to
“4L” mode.
●“Brake Hold Unavailable, Press
Brake to Deactive.”
• When the “DAC/CRAWL” switch is operated while the brake hold sys-

2314-3. Operating the lights and wipers
Owners Manual_USA_M0C043_en
4
Driving
1*1 or *2 Turns the
front fog lights off
2 Turns the front fog lights
on
*1: U.S.A.
*2: Canada
■Fog lights can be used when
The parking lights are on or the
headlights are on in low beam.
1 Press the Automatic High
Beam switch.
Fog light switch
The fog lights secure excel-
lent visibility in difficult driv-
ing conditions, such as in
rain and fog.
Operating instructions
AHB (Automatic High
Beam)
The Automatic High Beam
uses an in-vehicle front
camera to assess the bright-
ness of streetlights, the
lights of vehicles ahead etc.,
and automatically turns the
high beam on or off as nec-
essary.
WARNING
■Limitations of the Automatic
High Beam
Do not overly rely on the Auto-
matic High Beam. Always drive
safely, taking care to observe your
surroundings and turning the high
beams on or off manually if nec-
essary.
■To prevent inc orrect opera-
tion of the Automatic High
Beam system
Do not overload the vehicle.
Activating the Automatic
High Beam

2384-3. Operating the lights and wipers
Owners Manual_USA_M0C043_enmode while the powe
r switch is in
ON, the wipers will operate once
to show that AUTO mode is acti-
vated.
●If the temperature of the raindrop
sensor is 185°F (85°C) or higher,
or 5°F (-15°C) or lower, automatic
operation may not occur. In this
case, operate the wipers in any
mode other than AUTO mode.
■If no windshield washer fluid
sprays
Check that the wash er nozzles are
not blocked if there is washer fluid in
the windshield washer fluid reser-
v oi r.
WARNING
■Caution regarding the use of
windshield wipers in AUTO
mode (vehicles with rain-
sensing windshield wipers)
The windshield wipers may oper-
ate unexpectedly if the sensor is
touched or the windshield is sub-
ject to vibration in AUTO mode.
Take care that your fingers or any-
thing else do not become caught
in the windshield wipers.
■Caution regarding the use of
washer fluid
When it is cold, do not use the
washer fluid until the windshield
becomes warm. The fluid may
freeze on the windshield and
cause low visibility. This may lead
to an accident, resulting in death
or serious injury.
NOTICE
■When there is no washer fluid
spray from the nozzle
Damage to the washer fluid pump
may be caused if the lever is
pulled toward you and held con-
tinually.
■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 12-volt battery dis-
charge
Do not leave the wipers on longer
than necessary when the hybrid
system is off.

2424-4. Refueling
Owners Manual_USA_M0C043_en
1Press the opener switch.
2 Turn the fuel tank cap slowly
to open it and put it into the
holder on the fuel filler door.
After refueling, turn the fuel tank
cap until you hear a click. Once
the cap is released, it will turn
slightly in the opposite direction.
WARNING
●Do not top off the fuel tank.
NOTICE
■Refueling
●Finish refueling within 30 min-
utes. If more than 30 minutes
passes, the internal valve
closes. In this condition, fuel
may overflow during the refuel-
ing process. Press the fuel filler
door opener switch again.
●Make sure that the fuel filler
door lock is not pushed by the
fuel nozzle boot, etc. If the lock
is held, the internal valve closes
and fuel may overflow. To pre-
vent it, press the fuel filler door
opener switch again.
●Do not spill fuel during refueling.
Doing so may damage the vehi-
cle, such as causing the emis-
sion control system to operate
abnormally or damaging fuel
system components or the vehi-
cle’s painted surface.
Opening the fuel tank cap
Closing the fuel tank cap

2464-5. Using the driving support systems
Owners Manual_USA_M0C043_en
■Certification
 P.620
WARNING
●Do not attach objects, such as
stickers, transparent stickers,
etc., to the oute r side of the
windshield in fr ont of the front
camera (shaded area in the
illustration).
From the top of the windshield
to approximately 0.4 in. (1 cm)
below the bottom of the front
camera
Approximately 7.9 in. (20 cm)
(Approximately 4.0 in. [10 cm]
to the right and left from the
center of the front camera)
●If the part of the windshield in
front of the front camera is
fogged up or covered with con-
densation or ice, use the wind-
shield defogger to remove the
fog, condensation or ice.
( P.407)
●If water droplets cannot be
properly removed from the area
of the windshield in front of the
front camera by the windshield
wipers, replace the wiper insert
or wiper blade.
●Do not attach win dow tint to the
windshield.
●Replace the windshield if it is
damaged or cracked.
After replacing the windshield,
the front camera must be recali-
brated. Contact your Toyota
dealer for details.
●Do not allow liquids to contact
the front camera.
●Do not allow bright lights to
shine into the front camera.
●Do not dirty or damage the front
camera.
When cleaning the inside of the
windshield, do not allow glass
cleaner to contact the lens of
the front camera. Also, do not
touch the lens.
If the lens is dirty or damaged,
contact your Toyota dealer.
●Do not subject the front camera
to a strong impact.
●Do not change the installation
position or direction of the front
camera or remove it.
●Do not disassemble the front
camera.
●Do not modify any components
of the vehicle around the front
camera (inside rear view mirror,
etc.) or ceiling.
●Do not attach any accessories
to the hood, front grille or front
bumper that may obstruct the
front camera. Contact your Toy-
ota dealer for details.
●If a surfboard or other long
object is to be mounted on the
roof, make sure that it will not
obstruct the front camera.
●Do not modify the headlights or
other lights.