key battery TOYOTA COROLLA CROSS 2023 Owner's Manual

3706-3. Do-it-yourself maintenance
WARNING
■Battery precautions
Observe the following precau-
tions.
Failure to do so m ay result in
death or serious injury.
●Do not swallow the battery.
Doing so may cause chemical
burns.
●A coin battery o r button battery
is used in the key. If a battery is
swallowed, it may cause severe
chemical burns in as little as 2
hours and may result in death or
serious injury.
●Keep away new and removed
batteries from children.
●If the cover cannot be firmly
closed, stop using the key and
stow the key in the place where
children cannot reach, and then
contact your Toyota dealer.
●If you accidentally swallow a
battery or put a b attery into a
part of your body, get emer-
gency medical attention imme-
diately.
■To prevent battery explosion
or leakage of flammable liq-
uid or gas
●Replace the battery with a new
battery of the same type. If a
wrong type of battery is used, it
may explode.
●Do not expose batteries to
extremely low pressure due to
high altitude or extremely high
temperatures.
●Do not burn, bre ak or cut a bat-
tery.
NOTICE
■When replacing the battery
Use a flathead screwdriver of
appropriate size. Applying exces-
sive force may deform or damage
the cover.
■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.

381
7
7
When trouble arises
When trouble arises
.7-1. Essential informationEmergency flashers .... 382
If your vehicle has to be stopped in an emergency.................................. 382
If the vehicle is submerged or water on the road is ris-
ing ............................. 384
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed......................... 385
If you think something is wrong ........................ 389
Fuel pump shut off system .................................. 390
If a warning light turns on or a warning buzzer sounds.................................. 391
If a warning message is dis- played........................ 401
If you have a flat tire.... 405
If the engine will not start .................................. 415
If you lose your keys ... 417
If the electronic key does not operate properly (vehi-
cles with a smart key sys-
tem) ........................... 417
If the vehicle battery is dis- charged ..................... 419
If your vehicle overheats .................................. 423If the vehicle becomes stuck
.................................. 425

4167-2. Steps to take in an emergency
The battery terminal connec-
tions may be loose or cor-
roded. ( P.348)
The engine starting system may
be malfunctioning due to an
electrical problem such as elec-
tronic key battery depletion or a
blown fuse. However, an interim
measure is available to start the
engine. ( P.416)
One of the following may be the
cause of the problem:
 The battery may be dis-
charged. ( P.419)
 One or both of the battery ter-
minals may be disconnected.
( P.348)
Contact your Toyot a 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.
Do not use this starting proce-
dure except in case of emer-
gency.
1
Set the parking brake.
( P.172)
2 Check that the shift lever is in
P.
3 Turn the engine switch to
ACC
*.
4 Press and hold the engine
switch for about 15 seconds
while depressing the brake
pedal firmly.
Even if the engi ne can be started
using the above steps, the system
may be malfunctioning. Have the
vehicle inspected by your Toyota
dealer.
*: ACC mode can be enabled/dis- abled on the customize menu.
( P.449)
The starter motor does
not turn over (vehicles
with a smart key system)
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
(vehicles with a smart key
system)

4177-2. Steps to take in an emergency
7
When trouble arises
■When the electronic key does
not work properly
●Make sure that the smart key sys-
tem has not been deactivated in
the customization setting. If it is
off, turn the function on. (Custom-
izable features: P.449)
●Check if battery-saving mode is
set. If it is set, cancel the function.
( P. 1 1 9 )
●The electronic key function may
be suspended. ( P. 9 8 )
If you lose your keys
New genuine keys can be
made by your Toyota dealer
using the other key (vehi-
cles without a smart key
system) or mechanical key
(vehicles with a smart key
system) and the key number
stamped on your key num-
ber plate.
Keep the plate in a safe
place such as your wallet,
not in the vehicle.
NOTICE
■When an electronic key is lost
(vehicles with a smart key
system)
If the electronic key remains lost,
the risk of vehicle theft increases
significantly. Visit your Toyota
dealer immediately with all
remaining electronic keys that
were provided wit h your vehicle.
If the electronic key
does not operate prop-
erly (vehicles with a
smar t key system)
If communication between
the electronic key and vehi-
cle is interrupted ( P.119)
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 following
the procedure below.
NOTICE
■In case of a smart key system
malfunction or other
key-related problems
Take your vehicle with all the elec-
tronic keys provided with your
vehicle to your Toyota dealer.

4197-2. Steps to take in an emergency
7
When trouble arises
4Press the engine switch
shortly and firmly.
In the event that the engine still
cannot be started, contact your
Toyota dealer.
■Stopping the engine
Shift the shift lever to P and press
the engine switch as you normally
do when stopping the engine.
■Electronic key battery
As the above proc edure is a tempo-
rary measure, it is recommended
that the electronic key battery be
replaced immediate ly when the bat-
tery is depleted. ( P.368)
■Alarm (if equipped)
If a door is unlocked using the
mechanical key when the alarm sys-
tem is set, the alarm may be trig-
gered. ( P. 6 9 )
■Changing engine switch modes
Release the brake pedal and press
the engine switch in step 3 above.
The engine does not start and
modes will be cha nged each time
the switch is pressed. ( P.166)
If the vehicle batter y
is discharged
The following procedures
may be used to start the
engine if the vehicle’s bat-
tery is discharged.
You can also call your Toy-
ota dealer or a qualified
repair shop.

4207-2. Steps to take in an emergency
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.
1Vehicles with an alarm
( P.69): Confirm that the
electronic key is being car-
ried.
When connecting the jumper (or booster) cables, depending on the
situation, the alarm may activate
and doors locked. (
P. 7 0 )2 Open the hood. ( P.342)
3 Connect a positive jumper cable clamp to on your vehicle and
connect the clamp on the other end of the positive cable to on
the second vehicle. Then, connect a negative cable clamp to
on the second vehicle and connect the clamp at the other end of
the negative cable to .
Use jumper cables that can reach
the specified te rminals and con- necting point.
Positive (+) battery terminal (your vehicle)
Positive (+) battery terminal (second vehicle)
Negative (-) battery term
inal (second vehicle)
Metallic point shown in the illustration
4 Start the engine of the sec-
ond vehicle. Increase the engine speed slightly and
maintain at that level for
Restarting the engine

4217-2. Steps to take in an emergency
7
When trouble arises
approximately 5 minutes to
recharge the battery of your
vehicle.
5 Vehicles with a smart key
system: Open and close any
of the doors of your vehicle
with the engine switch OFF.
6 Maintain the engine speed of
the second vehicle and start
the engine of your vehicle by
turning the engine switch to
ON.
7 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.
■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 electri-
cal components when the vehicle
is running at a low speed for an
extended period, such as in heavy
traffic.
■When the battery is removed or
discharged
●Information stor ed in the ECU is
cleared. When the battery is
depleted, have the vehicle
inspected at you r Toyota dealer.
●Some systems may require initial-
ization. ( P.459)
■When removing the battery ter-
minals
When the battery terminals are
removed, the information stored in
the ECU is cleared. Before remov-
ing the battery term inals, contact
your Toyota dealer.
■Charging the battery
The electricity stored in the battery
will discharge grad ually even when
the vehicle is not in use, due to nat-
ural discharge and the draining
effects of certain electrical appli-
ances. If the vehicle is left for a long
time, the battery may discharge,
and the engine may be unable to
start. (The battery recharges auto-
matically during driving.)
■When recharging or replacing
the battery (vehicles with a
smart key system)
●In some cases, it may not be pos-
sible to unlock the doors using the
smart key system when the bat-
tery is discharged. Use the wire-
less 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.
●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 dis-
charged. Before disconnecting the
battery, turn the engine switch off.
If you are unsure what mode the
engine switch wa s in before the
battery discharged, be especially
careful when reconnecting the
battery.
●Vehicles with power back door:
The power back door must be ini-
tialized. ( P. 1 1 4 )
■When replacing the battery
●Use a battery that conforms to

472What to do if... (Troubleshooting)
1-1.What to do if... (Troubleshooting)What to do if... (Troubleshooting)
If you lose your keys or
mechanical keys, new genu-
ine keys or mechanical keys
can be made by your Toyota
dealer. ( P.417)
 If you lose your keys or elec-
tronic keys, the risk of vehicle
theft increases significantly.
Contact your Toyota dealer
immediately. ( P.417)
 Is the key battery weak or
depleted? ( P.368)
 Vehicles with a smart key sys-
tem: Is the engine switch in
ON?
When locking the doors, turn the
engine switch off. ( P.165)
 Vehicles with a smart key sys-
tem: 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.101,
119)
 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.107)
 Is the shift lever in P?
( P.162)
 Is the steering wheel
unlocked? ( P.162)
 Is the battery discharged?
( P.419)
 Did you press the engine
switch while firmly depress-
ing the brake pedal?
( P.163)
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
If you think something is
wrong
The engine does not start
(vehicles without a smart
key system)
The engine does not start
( v e h i c l e s w i t h a s m a r t k e y
system)

473What to do if... (Troubleshooting)
Is the shift lever in P?
( P.163)
 Is the electronic key any-
where detectable inside the
vehicle? ( P.118)
 Is the electronic key battery
weak or depleted?
In this case, the engine can be
started in a temporary way.
( P.418)
 Is the battery discharged?
( P.419)
 Is the engine switch in ON?
If you cannot release the shift lever
by depressing the brake pedal with
the engine switch in ON. ( P.169)
 It is locked to prevent theft of
the vehicle if the key is pulled
from the engine switch.
( P.162)
 Is the window lock switch
pressed?
The power window except for the
one at the driver’s seat cannot be
operated if the window lock switch
is pressed. ( P.134)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the
engine is not running) for a
period of time. ( P.167)
 The seat belt reminder light is
flashing
Are the driver and the passenger
wearing the seat belts? ( P.394)
 The parking brake indicator is
on
Is the parking br ake released?
(  P.172)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.391, 401)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the alarm
sounds. ( P. 6 9 )
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The steering wheel can-
not be turned after the
engine is stopped (vehi-
cles without a smart key
system)
The windows do not open
or close by operating the
power window switches
The engine switch is
turned off aut
omatically
( v e h i c l e s w i t h a s m a r t k e y
system)
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds (vehicles
with an alarm)

476Alphabetical Index
BatteryBattery checking................... 348
If the battery is discharged ... 419
Preparing and c hecking before
winter.................................. 279
Warning light ........................ 392
Blind Spot Monitor (BSM) ...... 243
Bottle holders ......................... 305
Brake Brake hold ............................ 175
Fluid ............................. 347, 433
Parking brake ....................... 172
Warning light ........................ 391
Brake assist ............................ 274
Break-in tips ........ ................... 142
Brightness control Instrument panel light control78, 81
BSM (Blind Spot Monitor) ...... 243
C
Care Exterior ................................. 328
Interior .................................. 331
Seat belts ............................. 331
Wheels and wheel ornaments........................................... 328
Cargo capacity ....................... 150
Cargo hooks ........................... 307
Child restraint system Fixed with a LATCH system ... 56
Fixed with a seat belt ............. 52
Front passenger occupant clas-sification system ................... 37
Points to remember ................ 43
Riding with children ................ 42
Types of child restraint system installation met hod ............... 45
Using an anchor bracket ........ 61
Child safety Airbag precautions ................. 32
Back door precautions ......... 108 Battery precautions ......349, 422
Child restraint system .............45
Heated steering wheel and seat
heater precautio ns..............300
How your child should wear the seat belt ................................26
Moon roof precautions..........136
Power window lock switch ....134
Power window precautions...133
Rear door child-protectors ....107
Removed electronic key battery precautions .........................370
Seat belt extender precautions .............................................26
Seat belt precautions..............42
Child-protectors......................107
Cleaning Exterior .................................328
Interior ..................................331
Seat belts .............................331
Wheels and wheel ornaments...........................................328
Clock ................... .....76, 78, 79, 81
Coat hooks ..............................319
Condenser ............. ..................347
Console box ............................306
Consumption screen ................95
Continuously variable transmis- sion ........................................168If th e s hif t le ver ca n no t b e s hif te d from P .................................169
M mode ................................170
Cooling system .......................346 Engine overheating ..............423
Cruise control .........................231
Cup holders.............................305
Current fuel consumption..83, 90
Curtain shield airbags ..............29
Customizable featu res ...........449
D
Daytime running light system179