2018 TOYOTA C-HR low battery

3736-3. Do-it-yourself maintenance
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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
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3756-3. Do-it-yourself maintenance
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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.
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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.

4347-2. Steps to take in an emergency
C-HR_OM_USA_OM10526U
If the engine will not start
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 procedures.
(→ P. 162, 165)
● There may be a malfunction in the engine immobilizer system.
(→ P. 74)
One of the following may be the cause of the problem:
● The battery may be discharged. ( →P. 439)
● The battery terminal connections may be loose or corroded.
The engine starting system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse.
However, an interim measure is available to start the engine.
( → P. 435)
If the engine will not start eve n though correct starting proce-
dures are being followed ( →P. 162, 165), consider each of the fol-
lowing points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low
volume.
The starter motor does not turn over (vehicles with a smart key
system)

4357-2. Steps to take in an emergency
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When trouble arises
C-HR_OM_USA_OM10526U
One of the following may be the cause of the problem:
●One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( →P. 439)
● There may be a malfunction in th e steering lock system. (vehicles
with a smart key system)
Contact your Toyota dealer if the problem cannot be repaired, or 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 functioning
normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the ve hicle inspected by your Toyota
dealer.
The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function (vehicles with a smart key system)
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4367-2. Steps to take in an emergency
C-HR_OM_USA_OM10526U
If the electronic key does not operate
properly (vehicles with a smart key system)
Use the mechanical key (→P. 100) in order to perform the following
operations:
Locks all the doors
Closes the windows (turn and
hold)
*
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 3 seconds
unlocks the other doors.
Opens the windows (turn and
hold)
*
*
: These settings must be customized at your Toyota dealer. ( →P. 474)
If communication between the electronic key and vehicle is
interrupted ( →P. 121) or the electronic key cannot be used
because the battery is depleted, the smart key system and
wireless remote control cannot be used. In such cases, the
doors can be opened and the engine can be started by follow-
ing the procedure below.
Locking and unlocking the doors

4387-2. Steps to take in an emergency
C-HR_OM_USA_OM10526U
■Stopping the engine
Set the parking brake, shift the shift lever to P and press the engine switch as
you normally do when stopping the engine.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery is depleted.
(→P. 373)
■ Changing engine switch modes
Release the brake pedal and press the engine switch in step above. The
engine does not start and modes will be changed each time the switch is
pressed. ( →P. 166)
■ When the electronic key does not work properly
●Make sure that the smart key system and push button start has not been
deactivated in the customization setting. If it is off, turn the function on.
(Customizable features: →P. 474)
● Check if battery-saving mode is set. If it is set, cancel the function.
(→P. 120)
WARNING
■ When using the mechanical key and operating the power windows
Operate the power window after checking to make sure that there is no pos-\
sibility of any passenger having any of their body parts caught in the side
window.
Also, do not allow children to operate the mechanical key. It is possible for
children and other passengers to get caught in the power window.
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4397-2. Steps to take in an emergency
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When trouble arises
If the vehicle battery is discharged
If you have a set of jumper (or booster) cables and a second vehicle
with a 12-volt battery, you can jump start your vehicle by following the
steps below.
Open the hood. ( →P. 338)
Remove the engine cover.
Pull up the both ends of the cover
vertically.
The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your Toyota de aler or a qualified repair shop.
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