battery TOYOTA CAMRY 2023 Service Manual

4616-3. Do-it-yourself maintenance
CAMRY_U
6
Maintenance and care
3.5 L V6 (2GR-FKS) engine
Fuse boxes (if equipped)( P. 499)
Engine oil filler cap ( P. 464)
Engine oil level dipstick ( P. 462)
Brake fluid reservoir ( P. 468)
Battery ( P. 469) Radiator (
P. 467)
Electric cooling fan
Condenser ( P. 467)
Engine coolant reservoir ( P. 466)
Washer fluid tank ( P. 472)1
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4696-3. Do-it-yourself maintenance
CAMRY_U
6
Maintenance and care
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals are not corroded and that
there are no loose connections, cracks, or loose clamps.
Terminals
Hold-down clamp
■ Before recharging
When recharging, the battery produces hydrogen gas which is flammable and
explosive. Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sur e to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connectin g and dis-
connecting the charger cables to the battery.
■ After recharging/reconnecting the battery (vehicles with a smar t key sys-
tem)
● Unlocking the doors using the smart key system may not be possi ble imme-
diately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
● Start the engine with the engine switch in ACCESSORY mode. The engine
may not start with the engine switch turned off. However, the e ngine will
operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the batte ry is recon-
nected, the vehicle will return the engine switch mode to the s tatus it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnecting the battery. Take extra care when connecti ng the bat-
tery if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts, contact your Toyota
dealer.
Battery
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4706-3. Do-it-yourself maintenance
CAMRY_U
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.
■ When disconnecting the battery
Do not disconnect the negative (-) terminal on the body side. T he discon-
nected negative (-) terminal may touch the positive (+) terminal, which may
cause a short and result in death or serious injury.

4716-3. Do-it-yourself maintenance
CAMRY_U
6
Maintenance and care
NOTICE
■When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.

4946-3. Do-it-yourself maintenance
CAMRY_U
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2032
Vehicles without a smart key system
Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
Remove the battery cover.
If the battery cover is difficult to
remove, lift the edge to remove it.
Remove the depleted battery
using a small flathead screw-
driver.
Insert a new battery with the “+”
terminal facing up.
Wireless remote control/electronic key
batter y
Replace the battery with a n ew one if it is depleted.
You will need the following items:
Replacing the battery
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4956-3. Do-it-yourself maintenance
CAMRY_U
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Maintenance and care
Install the battery cover with the
tab facing up.
Push the entire edge of the battery
cover into the key.
Install the key cover.
Align the key cover with the key
and then press it straight into the
key.
Make sure that the key cover is
securely installed without any gaps
between it and the key.
Operate the or switch and check that the doors can
be locked/unlocked.
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4966-3. Do-it-yourself maintenance
CAMRY_U
Vehicles with a smart key system
Release the lock and remove
the mechanical key.
Remove the key cover.
To prevent damage to the key,
cover the tip of the flathead screw-
driver with a rag.
Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the
electronic key module may stick to
the cover and the battery may not
be visible. In this case, remove the
electronic key module in order to
remove the battery.
Insert a new battery with the “+” terminal facing up.
When installing the key cover and mechanical key, install by con-
ducting and with the directions reversed.
Operate the or switch and check that the doors can
be locked/unlocked.
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4976-3. Do-it-yourself maintenance
CAMRY_U
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Maintenance and care
■When replacing the key battery
Be careful not to lose the battery or any other small parts.
■ 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 key battery is depleted
The following symptoms may occur:
●The smart key system (if equipped) and wireless remote control will not
function properly.
● The operational range will be reduced.
WARNING
■ Battery precautions
Observe the following precautions. Failure to do so may result in death or
serious injury.
● Do not swallow the battery. Doing so may cause chemical burns.
● Vehicles without a smart key system: A coin battery or button b attery is
used in the key. If a battery is swallowed, it may cause severe chemical
burns in as little as 2 hours and may result in death or seriou s injury.
● Vehicles with a smart key system: A coin battery or button battery is used
in the electronic key. If a battery is swallowed, it may cause severe chemi-
cal burns in as little as 2 hours and may result in death or serious injury.
● Keep away new and removed batteries from children.
● Vehicles without a smart key system: If the cover cannot be firmly closed,
stop using the key and stow the key in the place where children cannot
reach, and then contact your Toyota dealer.
● Vehicles with a smart key system: If the cover cannot be firmly closed,
stop using the electronic key and stow the key in the place where children
cannot reach, and then contact your Toyota dealer.
● If you accidentally swallow a battery or put a battery into a part of your
body, get emergency medical attention immediately.

4986-3. Do-it-yourself maintenance
CAMRY_U
WARNING
■To prevent battery explosion or leakage of flammable liquid or gas
● Replace the battery with a new battery of the same type. If a w rong type of
battery is used, it may explode.
● Do not expose batteries to extremely low pressure due to high altitude or
extremely high temperatures.
● Do not burn, break or cut a battery.
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.
■ When removing the battery cover (vehicles without a smart key sys-
tem)
Do not forcibly remove the battery cover, otherwise it may be damaged.
If the battery cover is difficult to remove, lift the edge to remove it.

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7When trouble arises
CAMRY_U7-1. Essential information
Emergency flashers .......... 516
If your vehicle has to be stopped in
an emergency ................. 517
If the vehicle is submerged or water
on the road is rising ........ 519
7-2. Steps to take in an emergency
If your vehicle needs to be towed ..................... 520
If you think something is wrong .......................... 526
Fuel pump shut off system ............................ 527
If a warning light turns on or a warning
buzzer sounds ................ 528
If a warning message is displayed ..................... 538
If you have a flat tire.......... 543
If the engine will not start ................................. 557
If the electronic key does not operate properly ........ 559
If the vehicle battery is discharged ................... 562
If your vehicle overheats ........................ 567
If the vehicle becomes stuck ............................... 570