2016 TOYOTA C_HR HYBRID battery

5367-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10538E
Check the 12-volt battery as follows.
■Caution symbols
The meanings of each caution symbol on the top of the 12-volt bat-
tery are as follows:
■12-volt battery exterior
Make sure that the 12-volt battery terminals are not corroded and
that there are no loose connections, cracks, or loose clamps.
Te r m i n a l s
Hold-down clamp
12-volt battery
No smoking, no naked
flames, no sparksBattery acid
Shield eyesNote operating
instructions
Keep away from
childrenExplosive gas
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5377-3. Do-it-yourself maintenance
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7
Maintenance and care
■Before recharging
When recharging, the 12-volt battery produces hydrogen gas which is flam-
mable and explosive. Therefore, obser ve the following precautions before
recharging:
● If recharging with the 12-volt battery installed on the vehicle, be sure to dis-
connect the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the 12-volt battery.
■ After recharging/reconnecting the 12-volt battery
● The hybrid system may not start. Follow the procedure below to initialize the
system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the hybrid system.
● Unlocking the doors using the smart entry & start system may not be possi-
ble immediately after reconnecting the 12-volt battery. If this happens, use
the wireless remote control or the mechanical key to lock/unlock the doors.
● Start the hybrid system with the power switch in ACCESSORY mode. The
hybrid system may not start with the power switch turned off. However, the
hybrid system will operate normally from the second attempt.
● The power switch mode is recorded by the vehicle. If the 12-volt battery is
reconnected, the vehicle will return the power switch mode to the status it
was in before the 12-volt battery was disconnected. Make sure to turn off
the power before disconnect the 12-volt battery. Take extra care when con-
necting the 12-volt battery if the power switch mode prior to discharge is
unknown.
● Restart the hybrid system, depress the brake pedal, and confirm that it is
possible to shift into each shift position.
If the system will not start even after multiple attempts at all methods above,
contact any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer.
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5387-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10538E
WARNING
■Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on or
near the 12-volt battery:
● Do not cause sparks by touching the 12-volt battery terminals with tools.
● Do not smoke or light a match near the 12-volt battery.
● Avoid contact with eyes, skin and clothes.
● Never inhale or swallow electrolyte.
● Wear protective safety glasses when working near the 12-volt battery.
● Keep children away from the 12-volt battery.
■ Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-
volt battery in a garage or closed room where there is insufficient ventila-
tion.
■ How to recharge the 12-volt battery
Only perform a slow charge (5 A or le ss). The 12-volt battery may explode 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 get immedi-
ate medical attention. If possible, continue to apply water with 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.

5397-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10538E
7
Maintenance and care
Add washer fluid in the following
situations:
● A washer does not work.
● The warning message appears
on the multi- information dis-
play. (if equipped)
WARNING
■ When there is insufficient 12-volt battery fluid
Do not use if there is insufficient flui d in the 12-volt battery. There is a possi-
ble danger that the 12-volt battery may explode.
■ When disconnecting the 12-volt battery
Do not disconnect the negative (-) terminal on the body side. The discon-
nected negative (-) terminal may touch the positive (+) terminal, which may
cause a short and result in death or serious injury.
NOTICE
■ When recharging the 12-volt battery
Never recharge the 12-volt battery while the hybrid system is operating.
Also, be sure all accessories are turned off.
Washer fluid
WARNING
■ When adding washer fluid
Do not add washer fluid when the hybrid system is hot or operating as
washer fluid contains alcohol and may catch fire if spilled on the engine, etc.

5617-3. Do-it-yourself maintenance
C-HR_HV_OM_Europe_OM10538E
7
Maintenance and care
Electronic key batter y
●Flathead screwdriver
● Small flathead screwdriver
● Lithium battery CR2032
Release the lock and take out
the mechanical key.
Remove the cover.
Use an appropriate sized flathead
screwdriver. Forceful prying may
deform the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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5627-3. Do-it-yourself maintenance
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Remove the depleted battery.
When removing the cover, if the
battery cannot be seen due to the
electronic key module attaching to
the upper cover, remove the elec-
tronic key module from the cover
so that the battery is visible as
shown in the illustration.
Use an appropriate sized flathead
screwdriver when removing the
battery.
Insert a new battery with the “+” terminal facing up.
When installing, reverse the steps listed.
■ Use a CR2032 lithium battery
● Batteries can be purchased at any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer, 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 entry & start system, push button start and wireless remote con-
trol will not function properly.
● The operational range will be reduced.
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5637-3. Do-it-yourself maintenance
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7
Maintenance and care
WARNING
■Removed battery and 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.
■ Certification for the lithium battery
CAUTION:
RISK OF EXPLOSION IF BATTERY IS REPLASED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE
INSTRUCTIONS
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 control.
● Do not bend either of the battery terminals.

585
8When trouble arises
C-HR_HV_OM_Europe_OM10538E
8-1. Essential information
Emergency flashers ........... 586
If your vehicle has to
be stopped in an
emergency ....................... 587
8-2. Steps to take in an
emergency
If your vehicle needs
to be towed ...................... 588
If you think something is
wrong ............................... 594
If a warning light turns on
or a warning buzzer
sounds ............................. 595
If a warning message is
displayed ......................... 606
If you have a flat tire
(vehicles with an
emergency tire
puncture repair kit)........... 612
If you have a flat tire
(vehicles with
a spare tire) ..................... 632
If the hybrid system will
not start............................ 646
If the electronic key does
not operate properly ........ 648
If the 12-volt battery is
discharged ....................... 651
If your vehicle
overheats ......................... 657
If the vehicle becomes
stuck ................................ 662