2018 TOYOTA C-HR battery

3416-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10526U
Engine compartment
Washer fluid tank (→P. 352)
Engine coolant reservoir (→ P. 345)
Fuse boxes ( →P. 377)
Engine oil filler cap (→ P. 343)
Engine oil level dipstick (→ P. 342) Battery
(→ P. 349)
Brake fluid reservoir (→ P. 347)
Electric cooling fan
Condenser ( →P. 346)
Radiator ( →P. 346)

3496-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10526U
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
■Checking battery fluid
If there are lines on the side of the battery:
Check that the level is between the upper and lower lines. Upper line
Lower line
If the fluid level is at or below the
lower line, add distilled water.
If there are not lines on the side of the battery:
Check the fluid level as follows.Remove the vent plug.
Check the fluid level by look-
ing directly at the cell.
If the fluid level is low, add dis-
tilled water.
Put the vent plug back on and close it securely.
Battery
Low O.K.1
2
3

3506-3. Do-it-yourself maintenance
C-HR_OM_USA_OM10526U■
Adding distilled water
Remove the vent plug.
Add distilled water.
Put the vent plug back on and close it securely.
■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 sure to disconnect
the ground cable.
● Make sure the power switch on the charger is off when connecting and dis-
connecting the charger cables to the battery.
■ After recharging/reconnecting the ba ttery (vehicles with a smart key sys-
tem)
● The engine may not start. Follow the procedure below to initialize the sys-
tem.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
● Unlocking the doors using the smart key system may not be possible 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 engine will
operate normally from the second attempt.
● The engine switch mode is recorded by the vehicle. If the battery is recon-
nected, the vehicle will return the engine switch mode to the status it was in
before the battery was disconnected. Make sure to turn off the engine
before disconnecting the battery. Take extra care when connecting the bat-
tery if the engine switch mode prior to discharge is unknown.
If the system will not start even after multiple attempts at all methods above,
contact your Toyota dealer.
1
2
3
1
2
3

3516-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10526U
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 risk 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.
■ 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.
■ When there is insuff icient battery fluid
Do not use if there is insufficient fluid in the battery. There is a possible dan-
ger that the battery may explode.
NOTICE
■ When recharging the battery
Never recharge the battery while the engine is running. Also, be sure all
accessories are turned off.
■ When adding distilled water
Avoid overfilling. Water spilled during battery recharging may cause corro-
sion.

3736-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10526U
Wireless remote control/electronic key
battery
● Flathead screwdriver
● Small flathead screwdriver
● Lithium battery
Vehicles without a smart key system: CR1620
Vehicles with a smart key system: CR2032
Vehicles without a smart key system
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver with
a rag.
Remove the battery cover.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2

3746-3. Do-it-yourself maintenance
C-HR_OM_USA_OM10526U
Remove the depleted battery
using a small flathead screw-
driver.
Insert a new battery with the “+”
terminal facing up.
When installing, reverse the steps listed.
Vehicles with a smart key system
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.
3
4
1
2

3756-3. Do-it-yourself maintenance
6
Maintenance and care
C-HR_OM_USA_OM10526U
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 CR1620 (vehicles without a sm art key system) or CR2032 (vehicles
with a smart key system) 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.
3
4

3766-3. Do-it-yourself maintenance
C-HR_OM_USA_OM10526U
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.
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.