key TOYOTA AVALON HYBRID 2020 (in English) Workshop Manual

445
7When trouble arises
7-1. Essential informationEmergency flashers .......... 446
If your vehicle has to be stopped in
an emergency ................. 447
If the vehicle is trapped in rising water.................. 448
7-2. Steps to take in an emergency
If your vehicle needs to be towed ..................... 449
If you think something is wrong .......................... 452
If a warning light turns on or a warning buzzer
sounds ............................ 453
If a warning message is displayed ..................... 463
If you have a flat tire.......... 469
If the hybrid system will not start ........................... 480
If the electronic key does not operate
properly ........................... 482
If the 12-volt battery is discharged ................... 485
If your vehicle overheats ........................ 492
If the vehicle becomes stuck ............................... 496

4657-2. Steps to take in an emergency
7
When trouble arises
■Warning messages
The warning messages explained below may differ from the actual messages
according to operation conditions and vehicle specifications.
■ System warning lights
The master warning light does not come on or flash in the following cases.
Instead, a separate system warning light will come on along wit h a message
shown on the multi-information display.
● Malfunction in the ABS
The ABS warning light comes on. ( P. 454)
● Malfunction in the brake system
The brake system warning light (yellow) comes on. ( P. 453)
● Malfunction in the tire pressure warning system
The tire pressure warning light comes on. ( P. 456)
● Remaining fuel level is low
The low fuel level warning light comes on. ( P. 456)
■ If a message instructing to refer to the Owner’s Manual is disp layed
● If the following messages are shown, there may be a malfunction .
Immediately stop the vehicle in a safe place and contact your T oyota dealer.
Continuing to drive the vehicle may be dangerous.
• “Low Braking Power Stop in a Safe Place See Owner’s Manual”
• “Oil Pressure Low Stop in a Safe Place See Owner’s Manual”
• “Charging System Malfunction Stop in a Safe Place See Owner’s Man-
ual”
● If the following message is shown, there may be a malfunction.
Immediately have the vehicle inspected by your Toyota dealer.
• “Hybrid System Malfunction”
• “Check Engine”
• “Hybrid Battery System Malfunction”
• “Accelerator System Malfunction”
• “Smart Key System Malfunction”
● If “Engine Coolant Temp High Stop in a Safe Place See Owner’s Manual” is
displayed, follow the instructions accordingly. ( P. 492)
● If “Maintenance Required for Traction Battery Cooling Parts See Owner’s
Manual” is displayed, follow the instructions accordingly. ( P. 434)

4677-2. Steps to take in an emergency
7
When trouble arises
■If “Auto Power Off to Con serve Battery” is displayed
Power was turned off due to the automatic power off function.
Next time when starting the hybrid system, operate the hybrid s ystem for
approximately 5 minutes to recharge the 12-volt battery.
■ If “A New Key has been Registered Contact Your Dealer for Detai ls” is
displayed
This message will be displayed each time the driver’s door is opened when
the doors are unlocked from the outside for approximately one week after a
new electronic key has been registered.
If this message is displayed but you have not had a new electro nic key regis-
tered, ask your Toyota dealer to check if an unknown electronic key (other
than those in your possession) has been registered.
■ When “Headlight System Malfunction Visit Your Dealer” is displa yed
The following systems may be malfunctioning. Have the vehicle i nspected by
your Toyota dealer immediately.
● The LED headlight system
● Automatic High Beam
■ “Front Camera Unavailable” or “Front Camera Unavailable Remove
Debris On Windshield” is displayed
The following systems may be suspended until the problem shown in the
message is resolved.
● PCS (Pre-Collision System)
● LDA (Lane Departure Alert with steering control)
● Dynamic radar cruise control with full-speed range
● Automatic High Beam
■ If “Maintenance Required Soon” is displayed
Indicates that all maintenance according to the driven distance on the mainte-
nance schedule
* should be performed soon.
Comes on approximately 4500 miles (7200 km) after the message has been
reset.
If necessary, perform maintenance. Please reset the message aft er the main-
tenance is performed. ( P. 393)
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’ s Manual
Supplement” for the maintenance interval applicable to your veh icle.

4807-2. Steps to take in an emergency
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly. (P. 483)
● There may not be sufficient f uel in the vehicle’s tank.
Refuel the vehicle.
● There may be a mal function in the immobilizer system.
(  P. 86)
● There may be a malfunction i n the steering lock system.
● The hybrid system may be malfunc tioning due to an electrical prob-
lem such as electronic key battery depletion or a blown fuse. H ow-
ever, depending on the type of malfunction, an interim measure is
available to start the hybrid system. ( P. 481)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 485)
● The 12-volt battery terminal conn ections may be loose or corroded.
(  P. 411)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on
the situation. Check the followi ng and perform the appropriate
procedure:
The hybrid system will not start even though the correct starting
procedure is being followed. ( P. 1 9 6 )
The interior lights and headlights are dim, or the horn does no t
sound or sounds at a low volume.

4827-2. Steps to take in an emergency
■Doors
Using the mechanical key (P.
135) in order to perform the fol-
lowing operations (driver’s door
only):
Locks all doors
Closes the windows and the
moon roof
*1 (turn and
hold)
*2
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*1 (turn and hold)*2
*1: If equipped
*2: 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. 151) 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
3
4

4837-2. Steps to take in an emergency
7
When trouble arises
■Tr u n k
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 switc h shortly and firmly.
In the event that the power swi tch still cannot be started, contact your
Toyota dealer.
Starting the hybrid system
1
2
3
4

4847-2. Steps to take in an emergency
■Stopping the hybrid system
Shift the shift lever to P and press the power switch as you no rmally do when
stopping the hybrid system.
■ Replacing the key battery
As the above procedure is a temporary measure, it is recommende d 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 abo ve.
The hybrid system does not start and modes will be changed each time the
switch is pressed. ( P. 197)
■ 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. 524)
● Check if battery-saving mode is set. If it is set, cancel the f unction.
( P. 150)
WARNING
■ When using the mechanical key and operating the power windows o r
moon roof
Operate the power window or moon roof after checking to make su re 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 passe ngers to get
caught in the power window or moon roof.
3

4857-2. Steps to take in an emergency
7
When trouble arises
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 foll owing 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. 90)
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 batter y 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 de aler or a qualified repair shop.
1
2
3

4887-2. Steps to take in an emergency
■Starting the hybrid system when the 12-volt battery is discharg ed
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 s ystem 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 batt ery is
depleted, have the vehicle inspected at your Toyota dealer.
● Some systems may require initialization. ( P. 533)
■ When removing the 12-vo lt 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 gr adually even when
the vehicle is not in use, due to natural discharge and the dra ining effects of
certain electrical appliances. If the vehicle is left for a lon g 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 wire less 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.

5268-2. Customization
■Gauges, meters and multi-information display (P. 98, 102)
*: The default setting varies according to country.
■
Door lock ( P. 138, 144, 482)
FunctionDefault settingCustomized setting
LanguageEnglishFrenchO—Spanish
Units*miles (MPG US)
miles (MPG Imperial)
O—km (L/100 km)
km (km/L)
Convenience services
(Suggestion function)On
On
(when the vehicle is
stopped)
OO
Off
12
FunctionDefault settingCustomized setting
Unlocking using a
mechanical key Driver’s door
unlocked in one step, all doors
unlocked in two
steps All doors unlocked in
one step —O
Automatic door lock
Shift position
linked door lock- ing operationOff
OOSpeed linked door locking operation
Automatic door unlock
Shift position linked door
unlocking opera- tionOff
OODriver’s door linked
door unlocking oper- ation
Locking/unlocking of the
trunk when all doors are
locked/unlocked
OnOff—O
12