Page 537 of 620

5378-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM12J84U)
nStopping 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.
n 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. 469)
n 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. 170)
n When the electronic key does not work properly
lMake 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. 576)
l Check if battery-saving mode is set. If it is set, cancel the function.
(P. 118)
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Page 538 of 620
5388-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM12J84U)
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. 437)
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 batter y 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 de aler or a qualified repair shop.
1
2
Page 539 of 620
5398-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM12J84U)
Connect the jumper cables according to the following procedure:Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.
Connect the clamp on the other e nd of the positive cable to the
positive (+) battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery termi-
nal on the second vehicle.
Connect the clamp at the other end of the negative cable to a
solid, stationary, unpainted metallic point away from the battery
and any moving parts, as shown in the illustration.3
1
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3
4
Page 540 of 620
5408-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM12J84U)
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the batter y 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.4
5
6
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Page 541 of 620

5418-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM12J84U)
nStarting the engine when the battery is discharged
The engine cannot be started by push-starting.
n To prevent battery discharge
lTurn off the headlights and the audio system while the engine is off.
l Turn off any unnecessary electrical components when the vehicle is running
at a low speed for an extended period, such as in heavy traffic.
n 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.)
n When recharging or replacing the battery
lVehicles 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.
l 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.
l 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.
l Make sure that the key is not inside the vehicle when recharging or replac-
ing the battery. The key may be locked in the vehicle if the alarm is acti-
vated. ( P. 69)
Page 542 of 620

5428-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM12J84U)
CAUTION
nAvoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the battery:
lMake sure each jumper cable is connected to the correct terminal and that
it is not unintentionally in contact with any other than the intended terminal.
l Do not allow the other end of the jumper cable connected to the “+” termi-
nal to come into contact with any other parts or metal surfaces in the area,
such as brackets or unpainted metal.
l Do not allow the + and - clamps of the jumper cables to come into contact
with each other.
l Do not smoke, use matches, cigarette lighters or allow open flame near
the battery.
n Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while
related parts contain lead and lead compounds. Observe the following pre-
cautions when handling the battery:
lWhen working with the battery, always wear safety glasses and take care
not to allow any battery fluids (acid) to come into contact with skin, clothing
or the vehicle body.
l Do not lean over the battery.
l In the event that battery fluid comes into contact with the skin or eyes,
immediately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention
can be received.
l Always wash your hands after handling the battery support, terminals, and
other battery-related parts.
l Do not allow children near the battery.
NOTICE
nWhen handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or engine drive belt.
Page 543 of 620
5438-2. Steps to take in an emergency
8
When trouble arises
COROLLA_TMMMS_TMMC_U (OM12J84U)
lVehicles with a drive monitor disp lay: The high engine coolant tem-
perature warning light ( P. 498) comes on or a loss of power is
experienced.
Vehicles with a multi-information display: The engine coolant tem-
perature gauge ( P. 82) enters the red zone or a loss of power is
experienced.
l Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled
down sufficient ly, inspect the
hoses and radiator core (radia-
tor) for any leaks.
Radiator
Cooling fan
If a large amount of coolant
leaks, immediately contact your
Toyota dealer.
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
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2
Page 544 of 620
5448-2. Steps to take in an emergency
COROLLA_TMMMS_TMMC_U (OM12J84U)
The coolant level is satisfactory
if it is between the “F” and “L”
lines on the reservoir.Reservoir
“F” line
“L” line
Radiator cap
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency if engine coolant is unavail-
able.
Start the engine to check that the radiator cooling fan operate and
to check for coolant leaks fr om the radiator or hoses.
4
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