disc TOYOTA AVALON HYBRID 2022 Service Manual

5017-2. Steps to take in an emergency
7
When trouble arises
Remove any dirt or foreign mat-
ter from the wheel contact sur-
face.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, causing the tire to come
off.
Install the tire and loosely tighten each wheel nut by hand by
approximately the same amount.
Tighten the wheel nuts until the
tapered portion comes into
loose contact with the disc
wheel seat.
Lower the vehicle.
Firmly tighten each wheel nut
two or three times in the order
shown in the illustration.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
Stow the flat tire, tire jack and all tools.
Installing the spare tire
1
2
Tapered portion
Disc wheel
seat
P
Q
R

5057-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause of the problem:
● The electronic key may not be functioning properly. (P. 508)
● 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. 506)
● The temperature of the hybrid battery (traction battery) may be
extremely low (below appro ximately -22°F [-30°C]). (P. 81, 202)
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 510)
● The 12-volt battery terminal conn ections may be loose or corroded.
(  P. 433)
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. 200)
The interior lights and headlights are dim, or the horn does no t
sound or sounds at a low volume.

5067-2. Steps to take in an emergency
One of the following may be the cause of the problem:
● The 12-volt battery may be discharged. ( P. 510)
● One or both of the 12-volt battery terminals may be disconnecte d.
(  P. 433)
Contact your Toyota dealer if the problem cannot be repaired, o r if repair
procedures are unknown.
When the hybrid system does not start, the following steps can be
used as an interim measure to sta rt the hybrid system if the power
switch is functioning normally.
Do not use this starting procedure except in case of emergency.
Set the parking brake.
Shift the shift lever to P.
Turn the power switch to ACCESSORY mode.
Press and hold the power switch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Hav e the vehicle inspected by your
Toyota dealer.
The interior lights and headlights do not turn on, or the horn
does not sound.
Emergency start function
1
2
3
4

5107-2. 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 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

5137-2. Steps to take in an emergency
7
When trouble arises
■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. 557)
■ 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.

5147-2. Steps to take in an emergency
■When replacing the 12-volt battery
●Use a Central Degassing type 12-volt battery (European Regulati ons).
● Use a 12-volt battery that the case size is same as the previou s 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 se cured.
• If the 20 hour rate capacity is low, even if the time period w here the vehi-
cle is not used is a short time, the 12-volt battery may discha rge and the
hybrid system may not be able to start.
● Use a 12-volt battery with a handle. If a 12-volt battery witho ut 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

5348-1. Specifications
NOTICE
■Notice on fuel quality
● Do not use improper fuels. If improper fuels are used, the engi ne will be
damaged.
● Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than the type previously stated.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Using unleaded gasoline with an octane number or rating lower than the
level previously stated will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■ Fuel-related poor driveability
If poor driveability (poor hot starting, vaporization, engine k nocking, etc.) is
encountered after using a different type of fuel, discontinue the use of that
type of fuel.
■ When refueling with gasohol
Take care not to spill gasohol. It can damage your vehicle’s paint.

5568-2. Customization
WARNING
■During customization
As the hybrid system needs to be operating during customization , ensure
that the vehicle is parked in a place with adequate ventilation . In a closed
area such as a garage, exhaust gases including harmful carbon monoxide
(CO) may collect and enter the vehicle. This may lead to death or a serious
health hazard.
NOTICE
■ During customization
To prevent 12-volt battery discharge, ensure that the hybrid sy stem is oper-
ating while customizing features.

563What to do if... (Troubleshooting)
●Did you press the power switch while firmly depressing the brake pedal?
( P. 200)
●Is the shift lever in P? ( P. 202)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 152)
●Is the steering wheel unlocked? (P. 203)
●Is the electronic key battery weak or depleted?
In this case, the hybrid system can be started in a temporary way.
(P. 508)
●Is the 12-volt battery discharged? ( P. 510)
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake p edal with the
power switch in ON mode. ( P. 213)
●It is locked automatically to prevent theft of the vehicle. ( P. 203)
●Is the window lock switch pressed?
The power window except for the one at the driver’s seat cannot be oper-
ated if the window lock switch is pressed. ( P. 177)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or ON mode (the hybrid system is not operating) for a peri od of
time. ( P. 202)
If you think something is wrong
The hybrid system does not start
The shift lever cannot be shifted from P even if you depress
the brake pedal
The steering wheel cannot be t urned after the hybrid system
is stopped
The windows do not open or close by operating the power
window switches
The power switch is turned off automatically

567Alphabetical index
Back-up lightsReplacing light bulb .............. 467
Battery (12-volt battery) .......... 433 Battery checking ................... 433
If the battery is discharged.... 510
Preparing and checking before winter....................... 354
Replacing .............................. 514
Battery (traction battery)........... 79
Blind Spot Monitor (BSM) ....... 297 Blind Spot Monitor function ............................... 301
Rear Cross Traffic Alert
function ............................... 304
Bottle holders .......................... 379
Brake Brake Hold ............................ 220
Fluid ...................................... 529
Parking brake........................ 216
Warning light ......................... 478
Brake assist ............................. 344
Brake Hold................................ 220 Warning light ......................... 480
Brake override system ............ 187
Break-in tips ............................ 188
Brightness control Ambient lights ....................... 376
Instrument panel light control................................... 99
BSM (Blind Spot Monitor) ....... 297 Blind Spot Monitor
function ............................... 301
Rear Cross Traffic Alert function ............................... 304 Care
Exterior ................................. 408
Interior .................................. 411
Seat belts.............................. 412
Wheels and wheel ornaments .......................... 409
Cargo capacity......................... 197
Cargo net.................................. 383
Chains ...................................... 355
Child restraint system............... 54
Booster seats, definition ......... 55
Booster seats, installation....... 64
Convertible seats, definition ... 55
Convertible seats, installation ............................ 62
Front passenger occupant
classification syst em ............ 48
Infant seats, definition............. 55
Infant seats, installation .......... 61
Installing CRS with LATCH anchors ............ 59
Installing CRS
with seat belts ...................... 61
Installing CRS with top tether strap.............. 65
BC
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.