2012 TOYOTA SIENNA run flat

794 6-1. Specifications
SIENNA_U (OM45477U)
Tires and wheels
17-inch tires
18-inch tires
Tire size P235/60R17 100T,
T155/80R17 101M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Spare: 60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size 17 x 7J, 17 x 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size P235/55R18 99V, P235/55RF18 99T,
T155/80R17 101M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Rear: 35 psi (240 kPa, 2.4 kgf/cm2 or bar)
Vehicles without run-flat tires:
Spare: 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size 18 x 7J, 17 x 4T (spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

801
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
Tire infor mation
Typical tire symbols
Run-flat tire or standard tire
Compact spare tireTire size ( P. 804)
DOT and Tire Identification Number (TIN) ( P. 803)
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Location of treadwear indicators ( P. 672)

802 6-1. Specifications
SIENNA_U (OM45477U)
Run-flat tire (RFT) or standard tire( P. 745)
This vehicle can be equipped with eit her run-flat tires (RFT) or stan-
dard tires. An “RFT” or “DSST” mark is molded on the sidewall of
the run-flat tire.
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the
strands which form the plies in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked
“RADIAL” is a bias-ply tire.
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the
tire. A tube type tire has a tube inside the tire and the tube main-
tains the air pressure.
Load limit at maximum cold tire inflation pressure ( P. 677)
Maximum cold tire in flation pressure ( P. 794)
This means the pressure to which a tire may be inflated.
Summer tires or all season tires ( P. 678)
An all season tire has “M+S” on the sidewall. A tire not marked
“M+S” is a summer tire.
“TEMPORARY USE ONLY” ( P. 754)
A compact spare tire is identified by the phrase “TEMPORARY USE
ONLY” molded on its sidewall. This tire is designed for temporary
emergency use only.

804 6-1. Specifications
SIENNA_U (OM45477U)
Tire size■ Typical tire size information
The illustration indicates typical tire size.
Tire use
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 or 3 digits)
Speed symbol
(alphabet with one letter)
Run-flat tire code
■ Tire dimensions
Section width
Tire height
Wheel diameter

813
6-1. Specifications
6
Vehicle specifications
SIENNA_U (OM45477U)
Tire related termMeaning
Reinforced tire A tire designed to operate at higher loads and
at higher inflation pressures than the corre-
sponding standard tire
Section width The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive bands
Sidewall That portion of a tire between the tread and
bead
Sidewall separation The 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 as described in
ASTM F-1805-00, Standard Test Method for
Single Wheel Driving Traction in a Straight Line
on Snow-and Ice-Covered Surfaces, and which
is marked with an Alpine Symbol ( ) on at
least one sidewall
Te s t r i m The rim on which a tire is fitted for testing, and
may be any rim listed as appropriate for use
with that tire
Tread That portion of a tire that comes into contact
with the road
Tread rib A tread section running circumferentially
around a tire
Tread separation Pulling away of the tread from the tire carcass

843
Abbreviation list
SIENNA_U (OM45477U)
ABBREVIATIONSMEANING
I/M Emission inspection and maintenance
LATCH Lower Anchors and Tethers for Children
LED Light Emitting Diode
MAX Maximum MIN Minimum
MMT Methylcyclopentadienyl Manganese Tricarbonyl
M + S Mud and Snow
MTBE Methyl Tertiary Butyl Ether OBD On Board Diagnostics
PCS Pre-Collision SystemRFT Run-Flat Tire
SRS Supplemental Restraint System
TIN Tire Identification Number
TPMS Tire Pressure Warning System TRAC Traction Control
VAR Variation
VDIM Vehicle Dynamics Integrated Management VIN Vehicle Identification Number
VSC Vehicle Stability Control

856
SIENNA_U (OM45477U)
What to do if...
What to do if...
A tire puncturesP. 745/P. 7 4 7If you have a flat tire
The engine does not start
P. 762If the engine will not start
P. 159Engine immobilizer system
P. 770If the battery is discharged
The shift lever cannot be
moved outP. 764If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 775If your vehicle overheats
The key is lostP. 766If you lose your keys
The battery runs outP. 770If the battery is discharged
The doors cannot be locked
P. 6 0Front doors
P. 6 7Siding doors
P. 8 2Back door
The horn begins to soundP. 162Alarm
The vehicle is stuck in
mud or sandP. 778If the vehicle becomes stuck