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Toyota Avalon Hybrid (2019 year). Manual - part 31

481

7-2. Steps to take in an emergency

hen
troub

le arises

■

Doors
Using the mechanical key (

P.

129) in order to perform the fol-
lowing operations (driver’s door
only):

Locks all doors
Closes the windows and the
moon roof

(turn and

hold)

Unlocks the door

Turning the key rearward unlocks the driver's door. Turning the key once
again unlocks the other doors.

Opens the windows and the moon roof

(turn and hold)

: If equipped

: This setting must be customized at your Toyota dealer.

If the electronic key does not operate

properly

If communication between the electronic key and vehicle is
interrupted (

P. 145) 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
and trunk can be opened and the hybrid system can be started
by following the procedure below.

Locking and unlocking the doors, unlocking the trunk and key
linked functions

1
2

482

7-2. Steps to take in an emergency

■

Trunk
Turn the mechanical key clock-
wise to open.

Ensure  that  the  shift  lever  is  in  P  and  firmly  depress  the  brake
pedal.
Touch  the  Toyota  emblem  side
of  the  electronic  key  to  the
power switch.

When  the  electronic  key  is
detected, a buzzer sounds and the
power switch will turn to ON mode.
When  the  smart  key  system  is
deactivated  in  customization  set-
ting,  the  power  switch  will  turn  to
ACCESSORY mode.

Firmly depress the brake pedal and check that

is displayed

on the multi-information display.
Press the power switch shortly and firmly.

In the event that the power switch still cannot be started, contact your
Toyota dealer.

Starting the hybrid system

483

7-2. Steps to take in an emergency

hen
troub

le arises

■

Stopping the hybrid system
Shift the shift lever to P and press the power switch as you normally do when
stopping the hybrid system.

■

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. 439)

■

Changing power switch modes
Release the brake pedal and press the power switch in step

above.

The hybrid system does not start and modes will be changed each time the
switch is pressed. (

P. 191)

■

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. 522)

●

Check if battery-saving mode is set. If it is set, cancel the function.
(

P. 144)

WARNING

■

When using the mechanical key and operating the power windows or
moon roof
Operate the power window or moon roof after checking to make sure that
there is no possibility of any passenger having any of their body parts
caught in the window or moon roof. 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 or moon roof.

484

7-2. 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.

Confirm that the electronic key
is being carried.

When connecting the jumper (or
booster) cables, depending on the
situation, the alarm may activate
and doors locked. (

P. 84)

Open the hood and remove the
fuse box cover.

Push the tabs in and lift the lid off.

Open the exclusive jump start-
ing terminal cover.

If the 12-volt battery is discharged

The following procedures may be used to start the hybrid sys-
tem if the vehicle’s 12-volt battery is discharged.
You can also call your Toyota dealer or a qualified repair shop.

485

7-2. Steps to take in an emergency

hen
troub

le arises

Connect the jumper cables according to the following procedure:

Connect  a  positive  jumper  cable  clamp  to  the  exclusive  jump
starting terminal on your vehicle.
Connect the clamp on the other end 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 exclusive
jump  starting  terminal  and  any  moving  parts,  as  shown  in  the
illustration.

486

7-2. Steps to take in an emergency

Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the 12-volt battery of your vehicle.
Open and close any of the doors of your vehicle with the power
switch off.
Maintain the engine speed of the second vehicle and turn the power
switch to ON mode, then start the vehicle's engine.
Make sure the “READY” indicator comes on. If the indicator does
not come on, contact your Toyota dealer.
Once the hybrid system has started, remove the jumper cables in
the exact reverse order from which they were connected.
Close the exclusive jump starting terminal cover, and reinstall the
fuse box cover to its original position.

Once the hybrid system starts, have the vehicle inspected at your
Toyota dealer as soon as possible.

487

7-2. Steps to take in an emergency

hen
troub

le arises

■

Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.

■

To prevent 12-volt battery discharge

●

Turn off the headlights and the audio system while the hybrid system 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.

■

When the 12-volt battery is removed or discharged

●

Information stored in the ECU is cleared. When the 12-volt battery is
depleted, have the vehicle inspected at your Toyota dealer.

●

Some systems may require initialization. (

P. 531)

■

When removing the 12-volt battery terminals
When the 12-volt battery terminals are removed, the information stored in the
ECU is cleared. Before removing the 12-volt battery terminals, contact your
Toyota dealer.

■

Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even when
the vehicle is not in use, due to natural discharge and the draining effects of
certain electrical appliances. If the vehicle is left for a long time, the 12-volt
battery may discharge, and the hybrid system may be unable to start. (The
12-volt battery recharges automatically while the hybrid system is operating.)

■

When recharging or replacing the 12-volt battery

●

In some cases, it may not be possible to unlock the doors using the smart
key system when the 12-volt battery is discharged. Use the wireless remote
control or the mechanical key to lock or unlock the doors.

●

The hybrid system may not start on the first attempt after the 12-volt battery
has recharged but will start normally after the second attempt. This is not a
malfunction.

●

The power switch mode is memorized by the vehicle. When the 12-volt bat-
tery is reconnected, the system will return to the mode it was in before the
12-volt battery was discharged. Before disconnecting the 12-volt battery,
turn the power switch off.
If you are unsure what mode the power switch was in before the 12-volt bat-
tery discharged, be especially careful when reconnecting the 12-volt battery.

488

7-2. Steps to take in an emergency

■

When replacing the 12-volt battery

●

Use a Central Degassing type 12-volt battery (European Regulations).

●

Use a 12-volt battery that the case size is same as the previous one (LN2),
20 hour rate capacity (20HR) is equivalent (64Ah) or greater, and perfor-
mance rating (CCA) is equivalent (356A) or greater.
• If the sizes differ, the 12-volt 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 12-volt battery may discharge and the
hybrid system may not be able to start.

●

Use a 12-volt battery with a handle. If a 12-volt battery without a handle is
used, removal is more difficult.

For details, consult your Toyota dealer.

●

After replacing, firmly attach the follow-
ing items to the exhaust hole of the 12-
volt battery.
• Use the exhaust hose that was

attached to the 12-volt battery before
replacing and confirm that it is firmly
connected to the hole section of the
vehicle.

• Use the exhaust hole plug included

with the 12-volt battery replaced or
the one installed on the battery prior
to the replacement. (Depending on
the 12-volt battery to be replaced, the
exhaust hole may be plugged.)

Exhaust hole plug
Exhaust hole
Exhaust hose
Hole section of the vehicle

1
2
3
4

489

7-2. Steps to take in an emergency

hen
troub

le arises

WARNING

■

When removing the 12-volt battery terminals
Always remove the negative (-) terminal first. If the positive (+) terminal con-
tacts any metal in the surrounding area when the positive (+) terminal is
removed, a spark may occur, leading to a fire in addition to electrical shocks
and death or serious injury.

■

Avoiding 12-volt battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flam-
mable gas that may be emitted from the 12-volt battery:

●

Make 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.

●

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.

●

Do not allow the + and - clamps of the jumper cables to come into contact
with each other.

●

Do not smoke, use matches, cigarette lighters or allow open flame near
the 12-volt battery.

■

12-volt battery precautions
The 12-volt battery contains poisonous and corrosive acidic electrolyte,
while related parts contain lead and lead compounds. Observe the following
precautions when handling the 12-volt battery:

●

When working with the 12-volt 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.

●

Do not lean over the 12-volt battery.

●

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.

●

Always wash your hands after handling the 12-volt battery support, termi-
nals, and other 12-volt battery-related parts.

●

Do not allow children near the 12-volt battery.

■

After recharging the 12-volt battery
Have the 12-volt battery inspected at your Toyota dealer as soon as possi-
ble.
If the 12-volt battery is deteriorating, continued use may cause the 12-volt
battery to emit a malodorous gas, which may be detrimental to the health of
passengers.

490

7-2. Steps to take in an emergency

WARNING

■

When replacing the 12-volt battery
After replacing, securely attach the exhaust hose and exhaust hole plug to
the exhaust hole of the replaced 12-volt battery. If not properly installed,
gases (hydrogen) may leak into the vehicle interior, and there is the possi-
ble danger of the gas igniting and exploding.

NOTICE

■

When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fan or engine drive belt.

■

To prevent damaging the vehicle
The exclusive jump starting terminal is to be used when charging the 12-volt
battery from another vehicle in an emergency. It cannot be used to jump
start another vehicle.

491

7-2. Steps to take in an emergency

hen
troub

le arises

■

If the needle of the engine coolant temperature gauge enters
the red zone or “Engine Coolant Temp High Stop in a Safe
Place See Owner’s Manual” is shown on the multi-information
display
Stop the vehicle in a safe place and turn off the air conditioning sys-
tem, and then stop the hybrid system.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the hybrid system has
cooled

down

sufficiently,

inspect the hoses and radiator
core (radiator) 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.

● The needle of the engine coolant temperature gauge (P. 92)

enters the red zone or a loss of hybrid system power is experi-
enced. (For example, the vehicle speed does not increase.)

● “Engine Coolant Temp High Stop in a Safe Place See Owner’s

Manual” or “Hybrid System Overheated Reduced Output Power”
is shown on the multi-information display

● Steam comes out from under the hood.

Correction procedures

1
2

492

7-2. Steps to take in an emergency

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 coolant if necessary.

Water can be used in an emer-
gency if coolant is unavailable.

Start the hybrid system and turn the air conditioning system on to
check that the radiator cooling fan operates and to check for cool-
ant leaks from the radiator or hoses.

The fan operates when the air conditioning system is turned on immedi-
ately after a cold start. Confirm that the fan is operating by checking the fan
sound and air flow. If it is difficult to check these, turn the air conditioning
system on and off repeatedly. (The fan may not operate in freezing tem-
peratures.)

If the fan is not operating:
Stop the hybrid system immediately and contact your Toyota dealer.
If the fan is operating:
Have the vehicle inspected at the nearest Toyota dealer.

1
2
3
4

493

7-2. Steps to take in an emergency

hen
troub

le arises

■

If “Hybrid System Overheated Reduced Output Power” is
shown on the multi-information display

Stop the vehicle in a safe place.
Stop the hybrid system and carefully lift the hood.
After  the  hybrid  system  has
cooled  down,  inspect  the
hoses  and  radiator  core
(radiator) for any leaks.

Radiator
Cooling fan

If a large amount of coolant
leaks, immediately contact
your Toyota dealer.

The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.

Reservoir
“FULL”
“LOW”

Add coolant if necessary.

Water can be used in an emer-
gency if coolant is unavailable.

1
2
3

1
2

1
2
3

494

7-2. Steps to take in an emergency

After stopping the hybrid system and waiting for 5 minutes or
more, start the hybrid system again and check for the multi-infor-
mation display.
If the message does not disappear:

Stop the hybrid system and contact your Toyota dealer.

If the message is not displayed:

The hybrid system temperature has dropped and the vehicle
may be driven normally.

However, if the message appears again frequently, contact your Toyota
dealer.

WARNING

■

To prevent an accident or injury when inspecting under the hood of
your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.

●

If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.

●

After the hybrid system has been turned off, check that the “READY” indi-
cator is off. When the hybrid system is operating, the gasoline engine may
automatically start, or the cooling fan may suddenly operate even if the
gasoline engine stops. Do not touch or approach rotating parts such as the
fan, which may lead to fingers or clothing (especially a tie, a scarf or a muf-
fler) getting caught, resulting in serious injury.

●

Do not loosen the radiator cap and the coolant reservoir cap while the
hybrid system and radiator are hot.
High temperature steam or coolant could spray out.

NOTICE

■

When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.

■

To prevent damage to the cooling system
Observe the following precautions:

●

Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).

●

Do not use any coolant additives.

495

7-2. Steps to take in an emergency

hen
troub

le arises

Stop the hybrid system. Set the parking brake and shift the shift
lever to P.
Remove the mud, snow or sand from around the front wheels.
Place wood, stones or some other material under the front wheels
to help provide traction.
Restart the hybrid system.
Shift the shift lever to D or R and release the parking brake. Then,
while exercising caution, depress the accelerator pedal.

■

When it is difficult to free the vehicle

If the vehicle becomes stuck

Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:

2
3

4
5

Press

to turn off TRAC.

WARNING

■

When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the
surrounding area is clear to avoid striking other vehicles, objects or people.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.

■

When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident resulting in death or serious injury.

496

7-2. Steps to take in an emergency

NOTICE

■

To avoid damaging the transmission and other components

●

Avoid spinning the front wheels and depressing the accelerator pedal
more than necessary.

●

If the vehicle remains stuck even after these procedures are performed,
the vehicle may require towing to be freed.

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