2021 TOYOTA SIENNA HYBRID flat tire

5348-1. Specifications
■Temperature A, B, C
The temperature grades are A
(the highest), B, and C, repre-
senting the tire’s resistance to
the generation of heat and its
ability to dissipate heat when
tested under controlled condi-
tions on a specified indoor labo-
ratory test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure.
Grade C corresponds to a level of performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law.
Warning: The temperature grades
of a tire assume tha
t it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked
for three hours or more, or has not been driven
more than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a
tire may be inflated, shown on the sidewall of
the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of transmis-
sion, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items are available as factory-
installed equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including th e maximum capacity of
fuel, oil and coolant, and if so equipped, air con-
ditioning and additional weight optional engine

5368-1. Specifications
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 components
in the bead
Bias ply tire
A pneumatic tire in whic h the ply cords that
extend to the beads are la id at alternate angles
substantially less than 9 0 degrees to the center-
line of the tread
CarcassThe tire structure, except tread and sidewall
rubber which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or
sidewall
CordThe strands forming th e plies in the tire
Cord separationThe parting of cords from adjacent rubber com-
pounds
CrackingAny parting withi n the tread, sidewall, or inner-
liner of the tire extend ing to cord material
CT
A pneumatic tire with an inverted flange tire and
rim system in which the rim is designed with rim
flanges pointed radially inward and the tire is
designed to fit on the underside of the rim in a
manner that encloses the rim flanges inside the
air cavity of the tire
Extra load tire
A tire designed to operate at higher loads and at
higher inflation pressures than the correspond-
ing standard tire
GrooveThe space between two adjacent tread ribs
Innerliner
The layer(s) forming th e inside surface of a
tubeless tire that contains the inflating medium
within the tire
Innerliner separationThe parting of the innerliner from cord material
in the carcass
Tire related termMeaning

5378-1. Specifications
8
Vehicle specifications
Intended outboard side-
wall
(a)The sidewall that contains a whitewall, bears
white lettering, or bear s manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other
sidewall of the tire, or
(b)The outward facing sidewall of an asymmetri-
cal tire that has a par ticular side that must
always face outward whe n mounted on a vehi-
cle
Light truck (LT) tire
A tire designated by its manufacturer as primar-
ily intended for use on lightweight trucks or mul-
tipurpose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry
for a given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum per-
missible inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which a
tire may be inflated
Measuring rimThe rim on which a tire is fitted for physical
dimension requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter o f an inflated new tire
Overall width
The linear distance between the exteriors of the
sidewalls of an inflated ti re, including elevations
due to labeling, decorations, or protective bands
or ribs
Passenger car tire
A tire intended for use on passenger cars, multi-
purpose passenger vehicles, and trucks, that
have a gross vehicle weight rating (GVWR) of
10,000 lb. or less.
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between adjacent
plies
Tire related termMeaning

5388-1. Specifications
Pneumatic tire
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an aut omotive wheel, pro-
vides the traction and co ntains the gas or fluid
that sustains the load
Radial ply tire
A pneumatic tire in whic h the ply cords that
extend to the beads are laid at substantially 90
degrees to the centerline of the tread
Reinforced tire
A tire designed to operate at higher loads and at
higher inflation pressures than the correspond-
ing standard tire
Section width
The linear distance between the exteriors of the
sidewalls of an inflated tire, excluding elevations
due to labeling, decoratio n, or protective bands
SidewallThat portion of a tire between the tread and
bead
Sidewall separationThe parting of the rubber compound from the
cord material in the sidewall
Snow tire
A tire that attains a traction index equal to or
greater than 110, compared to the ASTM E-
1136 Standard Reference Test Tire, when using
the snow traction test a s described in ASTM F-
1805-00, Standard Test Method for Single
Wheel Driving Traction i n a Straight Line on
Snow-and Ice-Covered Su rfaces, and which is
marked with an Alpine Symbol ( ) on at least
one sidewall
Test rim
The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire
TreadThat portion of a tire t hat comes into contact
with the road
Tread ribA tread section running circumferentially around
a tire
Tread separationPulling away of the tread from the tire carcass
Tire related termMeaning

570What to do if... (Troubleshooting)
multi-information display.
(P.477)
 When a warning light turns on
or a warning message is dis-
played, refer to P.466, 477.
 Vehicles without spare tire:
Stop the vehicle in a safe
place and repair the flat tire
temporarily with the emer-
gency tire puncture repair kit.
( P.481)
 Vehicles with spare tire: Stop
the vehicle in a safe place and
replace the flat tire with the
spare tire. ( P.491)
 Try the procedure for when
the vehicle becomes stuck in
mud, dirt, or snow. ( P.514)
A warning light turns on
or a warning message is
displayed
When a problem has
occurred
If you have a flat tire
The vehicle becomes
stuck

574Alphabetical Index
tion display ........................... 110
Dynamic radar cruise control with full-speed rangeFunction ............................... 288
Warning message ................ 477
E
ECB (Electronically Controlled Brake System) ...................... 335
Eco drive mode ...................... 333
EDR (Event data recorder)......... 8
E-Four (Electronic On-Demand AWD system) ........................ 336
Elapsed time ........................... 111
Electric motor Location.................................. 79
Specification ......................... 520
Electric Power Steering (EPS) Function ............................... 336
Warning light ........................ 468
Electronically Controlled Brake System (ECB) ....................... 335
Electronic key Battery-saving function......... 165
If the electronic key does not operate properly ................. 504
Replacing the battery ........... 447
Emergency, in case of If a warning buzzer sounds .. 466
If a warning light turns on ..... 466
If a warning message is dis-played................................. 477
If the 12-volt battery is dis- charged .............................. 506
If the electronic key does not operate properly ................. 504
If the fuel filler door cannot be opened ............................... 503
If the hybrid sy stem will not start
........................................... 501
If the vehicle is trapped in rising water .................................. 460 If you have a flat tire .....481, 491
If you lose your keys.............502
If you think something is wrong
...........................................465
If your vehicle becomes stuck ...........................................514
If your vehicle has to be stopped in an emergency .................459
If your vehicle needs to be towed ...........................................462
If your vehicle ove rheats ......511
Emergency flashers ...............458
Energy monitor .......................122
Engine Compartment........................416
Hood .....................................413
Identification number ............520
Engine coolant Capacity ...............................522
Checking ..............................419
Preparing and checking before winter ..................................343
Warning light ........................467
Engine coolant temperature gauge ...............................97, 101
Engine oil Capacity ...............................521
Checking ..............................416
Preparing and checking before winter ..................................343
Warning light ........................467
Engine oil maintenance data .418
Enhanced Vehicle Stability Con- trol (Enhanced VSC ) .............335
Enhanced VSC (Enhanced Vehi- cle Stability Control).............335
EPS (Electric Po wer Steering)
Function................................336
Warning light ........................468
EV drive mode.........................236
Event data recorder (EDR) .........8
EV indicator...............................80

Alphabetical Index575
F
Flat tire ............................ 481, 491Tire pressure warning system........................................... 427
Floor mats ................................. 32
Fluid Brake ............................ 420, 524
Hybrid transmission.............. 523
Rear differential .................... 523
Washer ................................. 421
Fog lights Replacing light bulbs ............ 451
Switch................................... 254
Footwell lights ..... ................... 363
Front door courtesy lights Wattage ................................ 526
Front doors .......... ................... 132
Front passenger’s seat belt reminder light ....................... 473
Front passenger occupant clas- sification system .................... 51
Front seat heaters .................. 361
Front seats .............................. 169 Adjustment ........................... 169
Cleaning ............................... 403
Correct driving posture ........... 33
Driving position memory....... 178
Head restraints ..................... 182
Memory recall function ......... 180
Power easy access system .. 178
Seat heaters ......................... 361
Seat position memory .......... 178
Seat ventilators .................... 361
Front side marker lights ........ 248 Light switch .......................... 248
Replacing light bulbs ............ 451
Front turn signal lights Replacing light bulbs ............ 451
Turn signal lever................... 242
Fuel Capacity ............................... 520 Fuel gauge .....................97, 101
Information .........
..................528
Refueling ..............................259
Type .............................520, 528
Warning light ........................472
Fuel consumption information Average fuel consumption ....125
Current fuel consumption .....125
Fuel filler door.........................260 If the fuel filler door cannot be opened ...............................503
Refueling ..............................259
Fuel gauge.........................97, 101
Fuses .......................................449
G
Garage door opene r ...............392
Gauges ..............................97, 101
Glove box ................................367
Grocery bag hooks .................387
H
Headlights ...............................248 Automatic High Beam system...........................................250
Light switch...........................248
Replacing light bulbs ............451
Wattage ................................526
Head restraints .......................182
Head-up display ......................118 Driving information display area...........................................118
Driving support system display area ....................................120
Head-up display switch ........119
Hybrid System Indicator .......121
Navigation system-linked display ...........................................118
Pop-up display......................120
Settings ................................119
Head-up display switch..........119

582Alphabetical Index
switches ............................. 178
Dynamic radar cruise control with full-speed range .......... 289
Emergency flashers switch .. 458
EV drive mode switch........... 236
Fog light switch .................... 254
Garage door opener switches ........................................... 392
Head-up display switch ........ 119
Heated steering wheel ......... 361
Ignition switch (power switch) ........................................... 231
Intuitive parking assist .......... 310
Light switch .......................... 248
LTA switch............................ 280
Meter control switches ......... 105
Moon roof switches .............. 204
Outside rear view mirror switches ............................. 198
Parking brake switch ............ 243
PCS (Pre-Collision System) . 269
PKSB (Parking Support Brake) ........................................... 320
Power back door switch ....... 154
Power door lock switch ........ 135
Power sliding door main switch ........................................... 149
Power sliding door switches . 140
Power switch ........................ 231
Power window switch ........... 201
RCD (Rear Camera Detection) switch ................................. 316
RCTA ................................... 301
Rear window and outside rear view mirror defoggers switch........................................... 350
Rear window wipe r and washer
switch ................................. 257
Seat heater switches .... 361, 362
Seat ventilator switches ....... 362
Vehicle-to-vehicle distance switch ................................. 288 VSC OFF switch ...................336
Window lock switch ..............203
Windshield defogger switch..349
Windshield wiper de-icer switch
...........................................353
Windshield wipers and washer switch .................................254
T
Tail lights Light switch...........................248
Replacing light bulbs ............451
Theft deterrent system Alarm ......................................89
Immobilizer system .................88
Tire inflation pressure Maintenance data .................525
Tire inflation pressure display function ...............................427
Warning light ........................472
Tire information ......................530 Glossary ...............................534
Size ......................................532
Tire identification number .....531
Tire section names ...............532
Tire pressure warning system Function................................427
Initializing..............................430
Installing tire p ressure warning
valves and transmitters ......429
Registering ID codes ............433
Warning light ........................472
Tires .........................................424 Chains ..................................345
Checking ..............................424
Glossary ...............................534
If you have a flat tire .....481, 491
Inflation pressure ..................438
Information ......... ..................530
Replacing .....................481, 491
Rotating tires ........................426
Size ......................................525