2017 TOYOTA COROLLA key battery

5268-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM02494U)
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. 530)
●There may be a malfunction in the 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 (continuously variable transmission) or N
(manual transmission).
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while
depressing the brake pedal and clutch pedal (manual transmission)
firmly.
Even if the engine can be started using the above steps, the system
may be malfunctioning. Have the vehicle 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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5278-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM02494U)
Use the mechanical key
(→P. 105) in order to perform
the following operations:
Locks all the doors
Unlocks the door
Turning the key rearward
unlocks the driver’s door. Turn-
ing the key once again within 5
seconds unlocks the other
doors.
If the electronic key does not operate properly
(vehicles with a smart key system)
If communication between the electronic key and vehicle is
interrupted (→P. 127) 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 can be started by following the
procedure below.
Locking and unlocking the doors
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5298-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM02494U)
■Stopping the engine
Shift the shift lever to P (continuously variable transmission) or N (manual
transmission) 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. 459)
■Changing engine switch modes
Release the brake pedal (continuously variable transmission) or clutch pedal
(manual transmission) 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. 178)
■When the electronic key does not work properly
●Make sure that the smart key system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features →P. 568)
●Check if battery-saving mode is set. If it is set, cancel the function.
(→P. 126)
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5308-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM02494U)
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.
Vehicles with an alarm: Confirm
that the electronic key (vehicles
with a smart key system) or key
(vehicles without a smart key
system) is being carried.
When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and doors locked. (→P. 71)
Open the hood. (→P. 429)
Remove the engine cover.
Raise the rear of the engine
cover to remove the two rear
clips, and then raise the front of
the engine cover to remove the
two front clips.
If the vehicle battery is discharged
The following procedures may be used to start the engine if the
vehicle’s battery is discharged.
You can also call your Toyota dealer or a qualified repair shop.
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5328-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM02494U)
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the battery of your vehicle.
Vehicles with a smart key system: Open and close any of the doors
of your vehicle with the engine switch off.
Vehicles without a smart key system:
Maintain the engine speed of the second vehicle and turn the
engine switch to the “ON” position, then start the vehicle's engine.
Vehicles with a smart key system:
Maintain the engine speed of the second vehicle and turn the
engine switch to IGNITION ON mode, then start the vehicle's
engine.
Once the vehicle’s engine has started, remove the jumper cables in
the exact reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at your Toyota
dealer as soon as possible.5
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5338-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM02494U)
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the
vehicle is not in use, due to natural discharge and the draining effects of cer-
tain electrical appliances. If the vehicle is left for a long time, the battery may
discharge, and the engine may be unable to start. (The battery recharges
automatically during driving.)
■When recharging or replacing the battery
●Vehicles with a smart key system: In some cases, it may not be possible to
unlock the doors using the smart key system when the battery is dis-
charged. Use the wireless remote control or the mechanical key to lock or
unlock the doors.
●The engine may not start on the first attempt after the battery has recharged
but will start normally after the second attempt. This is not a malfunction.
●Vehicles with a smart key system: The engine switch mode is memorized by
the vehicle. When the battery is reconnected, the system will return to the
mode it was in before the battery was discharged. Before disconnecting the
battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.

594
COROLLA_TMMMS_TMMC_U (OM02494U)
What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your keys or mechanical keys, new genuine keys or mechanical
keys can be made by your Toyota dealer. (→P. 106)
●If you lose your keys or electronic keys, the risk of vehicle theft increases
significantly. Contact your Toyota dealer immediately. (→P. 109)
●Is the key battery weak or depleted? (→P. 459)
●Vehicles with a smart key system:
Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (→P. 178)
●Vehicles with a smart key system:
Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on
your person.
●The function may not operate properly due to the condition of the radio
wave. (→P. 127)
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is
set. Open the rear door from outside and then unlock the child-protector
lock. (→P. 1 1 4 )
●The function to prevent the electronic key from being left inside the trunk
will operate and you can open the trunk as usual. Take the key out from the
trunk. (→P. 121)
If you have a problem, check the following before contacting
your Toyota dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
The trunk lid is closed with the electronic key left inside
(vehicles with a smart key system)

595What to do if... (Troubleshooting)
COROLLA_TMMMS_TMMC_U (OM02494U)
●Vehicles with a manual transmission:
Do you turn the key with the clutch pedal depressed firmly?
(→P. 173)
●Vehicles with a continuously variable transmission:
Is the shift lever in P? (→P. 173)
●Is the steering wheel unlocked? (→P. 173)
●Is the battery discharged? (→P. 530)
●Vehicles with a continuously variable transmission:
Did you press the engine switch while firmly depressing the brake pedal?
(→P. 176)
●Vehicles with a manual transmission:
Did you press the engine switch while firmly depressing the clutch pedal?
(→P. 176)
●Vehicles with a continuously variable transmission:
Is the shift lever in P? (→P. 180)
●Is the electronic key anywhere detectable inside the vehicle?
(→P. 125)
●Is the steering wheel unlocked? (→P. 180)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way.
(→P. 528)
●Is the battery discharged? (→P. 530)
If you think something is wrong
The engine does not start
(vehicles without a smart key system)
The engine does not start
(vehicles with a smart key system)