2021 TOYOTA AVALON HYBRID battery

5218-1. Specifications
8
Vehicle specifications
Production options
weight
The combined weight of installed regular pro-
duction options weighing over 5 lb. (2.3 kg) in
excess of the standard items which they
replace, not previously considered in curb
weight or accessory weight, including heavy
duty brakes, ride levelers, roof rack, heavy
duty 12-volt battery, and special trim
Rim
A metal support for a tire or a tire and tube
assembly upon which the tire beads are
seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer’s designation for a
rim by style or code
Rim widthNominal distance between rim flanges
Vehicle capacity
weight (Total load
capacity)The rated cargo and luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity
Vehicle maximum load
on the tire
The load on an individual tire that is deter-
mined by distributing to each axle its share of
the maximum loaded vehicle weight, and
dividing by two
Vehicle normal load on
the tire
The load on an individual tire that is deter-
mined by distributing to each axle its share of
curb weight, accessory weight, and normal
occupant weight (distributed in accordance
with Table 1
* below), and dividing by two
Weather sideThe surface area of the rim not covered by the
inflated tire
Bead
The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim
Bead separationA breakdown of the bond between compo-
nents in the bead
Tire related termMeaning

5348-2. 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 system is oper-
ating while customizing features.

535
8
Vehicle specifications
8-3. Items to initialize
Items to initialize
The following items must be initialized for normal system opera-
tion after such cases as the 12-volt battery being reconnected,
or maintenance being performed on the vehicle:
ItemWhen to initializeReference
Message indicating mainte-
nance is required• After the maintenance is per-
formedP. 393
Tire pressure warning sys-
tem
• When the tire inflation pres-
sure is changed such as
when changing traveling
speed or load weight
• When the tire inflation pres-
sure is changed such as
when the tire size is
changed
• When rotating the tires
• After performing the trans-
mitter ID code registration
procedure
P. 417
Intelligent Clearance Sonar
(ICS) (If equipped)• After reconnecting or chang-
ing the 12-volt batteryP. 3 1 1

540What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be
made by your Toyota dealer. (P. 135)
●If you lose your electronic keys, the risk of vehicle theft increases signifi-
cantly. Contact your Toyota dealer immediately. (P. 137)
●Is the key battery weak or depleted? (P. 439)
●Is the power switch in ON mode?
When locking the doors, turn the power switch off. (P. 197)
●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. 151)
●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. 141)
●The function to prevent the electronic key from being left inside the trunk
will operate and you can open the trunk as usual. Take the key out from the
trunk. (P. 145)
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
The trunk lid is closed with the electronic key left inside

541What to do if... (Troubleshooting)
●Did you press the power switch while firmly depressing the brake pedal?
(P. 196)
●Is the shift lever in P? (P. 198)
●<002c005600030057004b004800030048004f004800460057005500520051004c00460003004e0048005c000300440051005c005a004b004800550048000300470048005700480046005700440045004f00480003004c00510056004c004700480003005700
4b0048000300590048004b004c0046004f004800220003000b[P. 148)
●Is the steering wheel unlocked? (P. 199)
●Is the electronic key battery weak or depleted?
<002c005100030057004b004c005600030046004400560048000f00030057004b00480003004b005c00450055004c004700030056005c00560057004800500003004600440051000300450048000300560057004400550057004800470003004c0051000300
44000300570048005000530052005500440055005c0003005a[ay.
(P. 485)
●Is the 12-volt battery discharged? (P. 487)
●Is the power switch in ON mode?
If you cannot release the shift lever by depressing the brake pedal with the
power switch in ON mode. (P. 209)
●It is locked automatically to prevent theft of the vehicle. (P. 199)
●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. 173)
●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 period of
time. (P. 198)
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 turned 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

545Alphabetical index
Back-up lights
Replacing light bulb .............. 445
Battery (12-volt battery) .......... 411
Battery checking ................... 411
If the battery is discharged.... 487
Preparing and checking
before winter....................... 333
Replacing .............................. 491
Battery (traction battery)........... 79
Blind Spot Monitor (BSM) ....... 276
Blind Spot Monitor
function ............................... 280
Rear Cross Traffic Alert
function ............................... 283
Bottle holders .......................... 357
Brake
Brake Hold ............................ 216
Fluid ...................................... 507
Parking brake........................ 212
Warning light ......................... 455
Brake assist ............................. 323
Brake Hold................................ 216
Warning light ......................... 457
Brake override system ............ 183
Break-in tips ............................ 184
Brightness control
Ambient lights ....................... 354
Instrument panel light
control................................... 99
BSM (Blind Spot Monitor) ....... 276
Blind Spot Monitor
function ............................... 280
Rear Cross Traffic Alert
function ............................... 283Care
Exterior ................................. 386
Interior .................................. 389
Seat belts.............................. 390
Wheels and wheel
ornaments .......................... 387
Cargo capacity......................... 193
Cargo net.................................. 361
Chains ...................................... 334
Child restraint system............... 54
Booster seats, definition ......... 55
Booster seats, installation....... 64
Convertible seats, definition ... 55
Convertible seats,
installation ............................ 62
Front passenger occupant
classification system ............ 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”.

546Alphabetical index
Child safety ................................ 53
12-volt battery
precautions ................. 413, 492
Airbag precautions .................. 37
Battery precautions ....... 413, 492
Child restraint system ............. 54
How your child should wear
the seat belt .......................... 30
Installing child restraints ......... 58
Moon roof precautions .......... 180
Power window lock switch .... 173
Power window precautions ... 176
Rear door child-protectors .... 141
Removed electronic key
battery precautions ............. 440
Seat belt extender
precautions ........................... 33
Seat belt precautions .............. 32
Seat heater precautions........ 349
Trunk precautions ................. 146
Child-protectors....................... 141
Cleaning ........................... 386, 389
Exterior ................................. 386
Interior................................... 389
Seat belts .............................. 390
Wheels and wheel
ornaments .......................... 387
Coat hooks ............................... 376
Condenser ................................ 408
Connected Services
*
Console box ............................. 356
Consumption
screen............................. 106, 128
Coolant
Capacity ................................ 506
Checking ............................... 407
Preparing and checking
before winter....................... 333
Cooling system ........................ 407
Hybrid system
overheating......................... 494
Cornering lights ....................... 219Cruise control
Dynamic radar cruise control
with full-speed range .......... 263
Cup holders ............................. 358
Curtain shield airbags............... 35
Customizable features ............ 526
Daytime running light
system.................................... 219
Defogger
Outside rear view mirrors ..... 343
Rear window ......................... 343
Windshield ............................ 343
Dimensions .............................. 502
Dinghy towing.......................... 195
Display
Dynamic radar cruise control
with full-speed range .......... 263
LDA (Lane Departure Alert
with steering control) .......... 258
Multi-information display ....... 102
Warning messages ............... 465
Do-it-yourself maintenance .... 399
Door courtesy lights
Location ................................ 352
Wattage ................................ 509
Door lock
Doors .................................... 138
Smart key system ................. 138
Wireless remote control ........ 138
Doors ........................................ 138
Automatic door locking
and unlocking systems ....... 141
Door lock .............................. 140
Outside rear view mirrors ..... 170
Rear door child-protector ...... 141
Side doors ............................ 138
Side windows........................ 173
Drive-Start Control .................. 184
Driver’s seat belt
reminder light ........................ 458
D

547Alphabetical index
Driver’s seat position
memory .................................. 159
Driving
Break-in tips .......................... 184
Correct posture ....................... 26
Driving mode select
switches.............................. 321
Hybrid vehicle driving tips ..... 330
Procedures ........................... 182
Winter drive tips .................... 333
Driving information ................. 106
Driving position memory ........ 159
Memory recall function.......... 162
Power easy access
system ................................ 159
Dynamic radar cruise control
with full-speed range ............ 263
ECO Accelerator Guidance..... 109
Eco drive mode ........................ 321
Eco guide ................................. 109
Eco score ................................. 109
EDR
(Event data recorder) .............. 10
Electric motor
(traction motor) ....................... 79
Electric Power Steering
(EPS)....................................... 324
Warning light ......................... 457
Electronic key .......................... 134
Battery-saving function ......... 150
If the electronic key does
not operate properly ........... 484
Replacing the battery ............ 439
Emergency flashers ................ 448Emergency, in case of
If a warning buzzer
sounds................................ 455
If a warning light turns on ..... 455
If a warning message is
displayed ............................ 465
If the 12-volt battery is
discharged.......................... 487
If the electronic key does not
operate properly ................. 484
If the hybrid system
will not start ........................ 482
If the vehicle is trapped in
rising water ......................... 450
If you have a flat tire ............. 471
If you lose your keys ..... 135, 137
If you think something is
wrong ................................. 454
If your vehicle becomes
stuck ................................... 498
If your vehicle has to be
stopped in an emergency ... 449
If your vehicle needs to be
towed.................................. 451
If your vehicle overheats....... 494
E
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM
OWNER’S MANUAL”.