2023 TOYOTA GR YARIS key

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6-4. Do-it-yourself maintenance
1Release the lock and remove
the mechanical key.
2 Remove the key cover.
Use a screwdriver of an appropriate size. Forcedly prying may cause the cover damaged.
To prevent damage to the key, cover the tip of the flathead screwdriver with a rag.
3 Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the elec- tronic key module may stick to the cover and the battery may not be visi-
ble. In this case, remove the electronic key module in order to remove the bat-tery.
When removing the battery, use a screwdriver of an appropriate size.
Insert a new battery with the “+” termi-
nal facing up.
4 When installing the key cover
and mechanical key, install by
conducting step 2 and step 1
with the directions reversed.
5 Operate the or switch
and check that the doors can be
locked/unlocked.
Replacing the battery
WARNING
■Removed battery and other parts
These parts are small and if swal- lowed by a child, they can cause choking. Keep away from children.
Failure to do so could result in death or serious injury.
■Lithium battery precautions
CAUTION RISK OF EXPLOSION IF BATTERY
IS REPLACED BY AN INCORRECT TYPE.DISPOSE OF USED BATTERIES
ACCORDING TO THE INSTRUC- TIONS
NOTICE
■When replacing the battery
Use a flathead screwdriver of appro-
priate size. Applying excessive force may deform or damage the cover.

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7
When trouble arises
When trouble arises
7-1. Essential information
Emergency flashers .......... 304
If your vehicle has to be
stopped in an emergency 304
If the vehicle is trapped in rising
water............................... 305
7-2. Steps to take in an emer-
gency
If your vehicle needs to be
towed .............................. 307
If you think something is wrong
....................................... 311
Fuel pump shut off system 312
If a warning light turns on or a
warning buzzer sounds... 313
If a warning message is dis-
played ............................. 321
If you have a flat tire ......... 323
If the engine will not start .. 335
If you lose your keys ......... 336
If the electronic key does not
operate properly ............. 337
If the vehicle battery is dis-
charged .......................... 339
If your vehicle overheats... 344
If the vehicle becomes stuck
....................................... 346

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7-2. Steps to take in an emergency
When trouble arises
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 fol-
lowing correct starting proce-
dures. ( P.134)
 There may be a malfunction in
the engine immobilizer system.
( P. 7 0 )
One of the following may be the
cause of the problem:
 The battery may be discharged.
( P.339)
 The battery terminal connec-
tions may be loose or corroded.
( P.273)
The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key bat-
tery depletion or a blown fuse.
However, an interim measure is
available to start the engine.
( P.335)
One of the following may be the
cause of the problem:
 The battery may be discharged.
( P.339)
 One or both of the battery termi-
nals may be disconnected.
( P.273)
 There may be a malfunction in
the steering lock system.
Contact any authorized Toyota retailer
or Toyota authorized repairer, or any
reliable repairer 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
If the engine will not
start
If the engine will not start even
though correct starting proce-
dures are being followed
( P.134), consider each of the
following points:
The engine will not start
even though the starter
motor operates normally.
The starter motor turns over
slowly, the interior lights
and headlights are dim, or
the horn does not sound or
sounds at a low volume.
The starter motor does not
turn over
The starter motor does not
turn over, the interior lights
and headlights do not turn
on, or the horn does not
sound.
Emergency start function

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7-2. Steps to take in an emergency
interim measure to start the engine
if the engine switch is functioning
normally.
Do not use this starting procedure
except in case of emergency.
1 Set the parking brake.
2 Check that the shift lever is in N.
3 Turn the engine switch to ACC.
4 Press and hold the engine
switch for about 15 seconds
while depressing the clutch
pedal firmly.
Even if the engine can be started using
the above steps, the system may be
malfunctioning. Have the vehicle
inspected by any authorized Toyota
retailer or Toyota authorized repairer, or
any reliable repairer.
If you lose your keys
New genuine keys can be
made by any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable
repairer using the other
mechanical key and the key
number stamped on your key
number plate.
Keep the plate in a safe place
such as your wallet, not in the
vehicle.
NOTICE
■When an electronic key is lost
If the electronic key remains lost, the
risk of vehicle theft increases signifi- cantly. Visit any authorized Toyota retailer or Toyota authorized repairer,
or any reliable repairer immediately with all remaining electronic keys that were provided with your vehicle.

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7-2. Steps to take in an emergency
When trouble arises
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the customization setting. If it is off,
turn the function on. (Customizable features: P.359)
●Check if battery-saving mode is set. If it is set, cancel the function. ( P.108)
Use the mechanical key (P.99) in
order to perform the following oper-
ations:
1 Locks all the doors
2 Unlocks all the doors
■Key linked functions
1 Closes the windows (turn and hold)*
2Opens the windows (turn and hold)*
*: These settings must be customized at
any authorized Toyota retailer or
Toyota authorized repairer, or any reli-
able repairer.
If the electronic key
does not operate prop-
erly
If communication between the
electronic key and vehicle is
interrupted ( P.108) or the
electronic key cannot be used
because the battery is
depleted, the smart entry &
start system and wireless
remote control cannot be used.
In such cases, the doors can
be opened and the engine can
be started by following the pro-
cedure below.
NOTICE
■In case of a smart entry & start
system malfunction or other key- related problems
Take your vehicle with all the elec-
tronic keys provided with your vehicle to any authorized Toyota retailer or Toyota authorized repairer, or any reli-
able repairer.
Locking and unlocking the
doors
WARNING
■When using the mechanical key and operating the power win-dows
Operate the power window after checking to make sure that there is no possibility of any passenger having
any of their body parts caught in the 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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7-2. Steps to take in an emergency
1Shift the shift lever to N and
depress the clutch pedal.
2 Touch the area behind the lock
button and unlock button on the
electronic key to the engine
switch.
When the electronic key is detected, a
buzzer sounds and the engine switch will turn to ON.
When the smart entry & start system is
deactivated in customization setting, the engine switch will turn to ACC.
3 Firmly depress the clutch pedal
and check that is shown
on the multi-information display.
4 Press the engine switch shortly
and firmly.
In the event that the engine still
cannot be started, contact any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer.
■Stopping the engine
Shift the shift lever to N and press the engine switch as you normally do when
stopping the engine.
■Electronic 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.293)
■Alarm (if equipped)
Using the mechanical key to lock the
doors will not set the alarm system. If a door is unlocked using the mechani-cal key when the alarm system is set,
the alarm may be triggered. ( P. 7 2 )
■Changing engine switch modes
Release the clutch pedal and press the engine switch in step 3 above.
The engine does not start and modes will be changed each time the switch is pressed. ( P.136)
Starting the engine

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7-2. Steps to take in an emergency
When trouble arises
If you have a set of jumper (or
booster) cables and a second vehi-
cle with a 12-volt battery, you can
jump start your vehicle by following
the steps below.
1 Vehicles with an alarm (P. 7 2 ) :
Confirm that the key is being
carried.
When connecting the jumper (or
booster) cables, depending on the situ- ation, the alarm may activate and doors locked. ( P. 7 3 )
2Open the hood. (P.266)
3 Remove the engine cover.
4 Connect a positive jumper cable clamp to on your vehicle and con-
nect the clamp on the other end of the positive cable to on th e sec-
ond vehicle. Then, connect a negative cable clamp to on the se cond
If the vehicle batter y is
discharged
The following procedures may
be used to start the engine if
the vehicle’s battery is dis-
charged.
You can also call any autho-
rized Toyota retailer or Toyota
authorized repairer, or any reli-
able repairer or a qualified
repair shop.
Restarting the engine

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7-2. Steps to take in an emergency
When trouble arises
ning at a low speed for an extended
period, such as in heavy traffic.
■When the battery is removed or dis- charged
●Information stored in the ECU is cleared. When the battery is depleted, have the vehicle inspected at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Some systems may require initializa-tion. ( P.367)
■When removing the battery termi-
nals
When the battery terminals are removed, the information stored in the
ECU is cleared. Before removing the battery terminals, contact any autho-rized Toyota retailer or Toyota autho-
rized repairer, or any reliable repairer.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehi-
cle is not in use, due to natural dis- charge and the draining effects of certain electrical appliances. If the vehi-
cle 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
●In some cases, it may not be possible to unlock the doors using the smart entry & start system when the battery
is discharged. 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 mal-function.
●The engine switch mode is memo-rized by the vehicle. When the battery
is reconnected, the system will return to the mode it was in before the bat-tery was discharged. Before discon-
necting the battery, turn the engine
switch off. If you are unsure what mode the engine switch was in before the bat-
tery discharged, be especially careful when reconnecting the battery.
■When replacing the battery
●Use a genuine battery specifically designed for use with the Stop & Start system or a battery with equivalent
specifications to a genuine battery. If an unsupported battery is used, Stop & Start system functions may be
restricted to protect the battery. Also, battery performance may decrease and the engine may not be able to
restart. Contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer for details.
●Use a battery that conforms to Euro-pean regulations.
●Use a battery that the case size is same as the previous one, 20 hour
rate capacity (20HR) is equivalent or greater, and performance rating (CCA) is equivalent or greater. Check
the label on top of the battery for the battery size and specifications (ex. LN3, 65Ah, 600A).
• If the sizes differ, the battery cannot be properly secured.• If the 20 hour rate capacity is low,
even if the time period where the vehi- cle is not used is a short time, the bat-tery may discharge and the engine
may not be able to start.
●Use a ventilation type calcium battery
●After replacing, firmly attach the fol- lowing items to the exhaust hole of the
battery. • Use the exhaust hose that was attached to the battery before replac-
ing and confirm that it is firmly con- nected to the hole section of the vehicle.
• Use the exhaust hole plug included with the battery replaced or the one installed on the battery prior to the
replacement. (Depending on the bat- tery to be replaced, the exhaust hole