battery TOYOTA SEQUOIA 2022 Service Manual

4266-3. Do-it-yourself maintenance
SEQUOIA_OM_USA_OM0C047U
WARNING
■Chemicals in the battery
Batteries contain poisonous and corrosive sulfuric acid and may produce
hydrogen gas which is flammable and explosive. To reduce the ri sk of death
or serious injury, take the following precautions while working on or near the
battery:
● Do not cause sparks by touching the battery terminals with tools.
● Do not smoke or light a match near the battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the battery.
● Keep children away from the battery.
■ Where to safely charge the battery
Always charge the battery in an open area. Do not charge the battery in a
garage or closed room where there is insufficient ventilation.
■ How to recharge the battery
Only perform a slow charge (5 A or less). The battery may explo de if
charged at a quicker rate.
■ Emergency measures regarding electrolyte
● If electrolyte gets in your eyes
Flush your eyes with clean water for at least 15 minutes and ge t immedi-
ate medical attention. If possible, continue to apply water wit h a sponge or
cloth while traveling to the nearest medical facility.
● If electrolyte gets on your skin
Wash the affected area thoroughly. If you feel pain or burning, get medical
attention immediately.
● If electrolyte gets on your clothes
It can soak through clothing on to your skin. Immediately take off the cloth-
ing and follow the procedure above if necessary.
● If you accidentally swallow electrolyte
Drink a large quantity of water or milk. Get emergency medical attention
immediately.

4276-3. Do-it-yourself maintenance
6
Maintenance and care
SEQUOIA_OM_USA_OM0C047U
Add washer fluid in the following
situations:
●A washer does not work.
● The warning message appears
on the multi-information display.
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
Washer fluid
WARNING
■When adding washer fluid
Do not add washer fluid when the engine is hot or running as wa sher fluid
contains alcohol and may catch fire if spilled on the engine, etc.
NOTICE
■ Do not use any fluid other than washer fluid
Do not use soapy water or engine antifreeze instead of washer fluid.
Doing so may cause streaking on the vehicle’s painted surfaces, as well as
damaging the pump leading to problems of the washer fluid not spraying.
■ Diluting washer fluid
Dilute washer fluid with water as necessary.
Refer to the freezing temperatures listed on the label of the washer fluid bot-
tle.

4486-3. Do-it-yourself maintenance
SEQUOIA_OM_USA_OM0C047U
Electronic key batter y
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2032
Take out the mechanical key.
Remove the module.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the depleted battery.
Insert a new battery with the “+”
terminal facing up.
Replace the battery with a n ew one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3

4496-3. Do-it-yourself maintenance
6
Maintenance and care
SEQUOIA_OM_USA_OM0C047U
■Use a CR2032 lithium battery
●Batteries can be purchased at your Toyota dealer, local electrical appliance
shops or camera stores.
● Replace only with the same or equivalent type recommended by the manu-
facturer.
● Dispose of used batteries according to local laws.
■ If the electronic key battery is depleted
The following symptoms may occur:
●The smart key system and wireless remote control will not funct ion properly.
● The operational range will be reduced.
WARNING
■ Removed battery a nd other parts
These parts are small and if swallowed by a child, they can cause choking.
Keep away from children. Failure to do so could result in death or serious
injury.
NOTICE
■ For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
● Always work with dry hands.
Moisture may cause the battery to rust.
● Do not touch or move any other component inside the remote cont rol.
● Do not bend either of the battery terminals.

461
When trouble arises7
SEQUOIA_OM_USA_OM0C047U7-1. Essential information
Emergency flashers .......... 462
If your vehicle has to be stopped in an
emergency ...................... 463
If the vehicle is submerged or water on
the road is rising ............. 465
7-2. Steps to take in an emergency
If your vehicle needs to be towed ......................... 466
If you think something is wrong .............................. 470
Fuel pump shut off system ............................ 471
If a warning light turns on or a warning buzzer
sounds ............................ 472
If a warning message is displayed......................... 481
If you have a flat tire.......... 493
If the engine will not start ................................. 507
If the electronic key does not operate properly ........ 509
If the vehicle battery is discharged ...................... 511
If your vehicle overheats ... 515
If the vehicle becomes stuck ............................... 518

4627-1. Essential information
SEQUOIA_OM_USA_OM0C047U
Emergency flashers
Press the switch.
All the turn signals will flash.
To turn them off, press the switch
once again.
■Emergency flashers
●If the emergency flashers are used for a long time while the engine is not
operating, the battery may discharge.
● If any of the SRS airbags deploy (inflate) or in the event of a strong rear
impact, the emergency flashers will turn on automatically
The emergency flashers will turn off automatically after operating for approx-
imately 20 minutes. To manually turn the emergency flashers off, press the
switch twice. (The emergency flashers may not turn on automatic ally
depending on the force of the impact and conditions of the coll ision.)
The emergency flashers are used to warn other drivers when the
vehicle has to be stopped in the road due to a breakdown, etc.

4907-2. Steps to take in an emergency
SEQUOIA_OM_USA_OM0C047U
OnceContin-
uous
An attempt was made to exit
the vehicle with the electronic
key and lock the doors without
first turning the engine switch
off when the shift lever was in
P.
Turn the engine switch
off and lock the doors
again.
Once
The electronic key is not
detected when an attempt is
made to start the engine.
Start the engine with the
electronic key present.
9 times
An attempt was made to drive
when the electronic key was
not inside the vehicle.
Confirm that the elec-
tronic key is inside the
vehicle.
Contin-
uous
An attempt was made to lock
the doors using the smart key
system while the electronic
key was still inside the vehicle.
Retrieve the electronic
key from the vehicle and
lock the doors again.
OnceContin-
uous
An attempt was made to lock
either front door by opening a
door and putting the inside
lock button into the lock posi-
tion, then closing the door with
the electronic key still inside
the vehicle.
Retrieve the electronic
key from the vehicle and
lock the doors again.
Once
The electronic key has a low
battery.
Replace the electronic
key battery. ( P. 448)
Interior
buzzerExterior buzzerWarning messageDetails/Actions
Turn Power OFF
Key Not Detected
(Flashes)
Key Not Detected
(Flashes)
Key Not Detected
(Flashes)
Key Detected in Vehicle
(Flashes)
Key Detected
in Vehicle
(Flashes)
Key Battery Low

5077-2. Steps to take in an emergency
SEQUOIA_OM_USA_OM0C047U
7
When trouble arises
If the engine will not star t
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine again following correct starting proc edures.
(  P. 214)
● There may be a malf unction in the engine immobilizer system.
(  P. 76)
One of the following may be the cause of the problem:
● The battery may be discharged. ( P. 511)
● The battery terminal connecti ons may be loose or corroded.
The engine starting system may be malfunctioning due to an elec trical
problem such as an open circuit or a blown fuse. However, an in terim
measure is available to start the engine. ( P. 508)
If the engine will not start eve n though correct starting proce -
dures are being followed ( P. 214), consider each of the follow-
ing points:
The engine will not start even t hough the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and he ad-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor d oes not turn over

5087-2. Steps to take in an emergency
SEQUOIA_OM_USA_OM0C047U
One of the following may be the cause of the problem:
● One or both of the battery t erminals may be disconnected.
● The battery may be discharged. ( P. 511)
Contact your Toyota dealer if the problem cannot be repaired, o r if repair
procedures are unknown.
● There may be a malfunction i n the steering lock system
Contact your Toyota dealer if the problem cannot be repaired, o r if repair
procedures are unknown.
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is fun ctioning
normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACC.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be start ed using the above steps, the sy stem
may be malfunctioning. Have the vehicle inspected by your Toyot a
dealer.
The starter motor does not turn over, the interior lights and h ead-
lights do not turn on, o r the horn does not sound.
Emergency start function
1
2
3
4

5097-2. Steps to take in an emergency
SEQUOIA_OM_USA_OM0C047U
7
When trouble arises
If the electronic key does not operate
properly
Use the mechanical key (P. 108)
in order to perform the following
operations:
Locks all the doors
Unlocks all the doors
Turning the key rearward unlocks
the driver’s door. Turning the key
once again unlocks the other
doors.
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Toyota emblem side
of the electronic key to the
engine switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the key.
Press the engine switch.
In the event that the engine still cannot be started, contact your Toyota
dealer.
If communication between the electronic key and vehicle is
interrupted ( P. 131) or the electronic key cannot be used
because the battery is depleted, the smart key system and wire-
less remote control cannot be used. In such cases, the doors
can be opened and the engine c an be started by following the
procedure below.
Locking and unlocking the doors
Starting the engine
1
2
3