tire pressure TOYOTA xD 2009 (in English) User Guide

128
IF THE TIRE PRESSURE WARNING
LIGHT COMES ON AFTER BLINKING
FOR 1 MINUTE...
If the tire pressure warning light comes
on after blinking for 1 minute when the
engine switch is in “ON” position, the
tire pressure warning system is not
working properly.
The system will be disabled in the follow-
ing conditions:
(When the condition becomes normal, the
system will work properly.)
If tires not equipped with tire pressure
warning valves and transmitters are
used.
If the ID code on the tire pressure
warning valves and transmitters is not
registered in the tire pressure warning
computer.
If the tire inflation pressure is more
than 500 kPa (5.1 kgf/cm2 or bar, 73
psi).
The system may be disabled in the follow-
ing conditions:
(When the condition becomes normal, the
system will work properly.)
If electronic devices or facilities using
similar radio wave frequencies are
nearby.
If a radio set at similar frequencies is
in use in the vehicle.
If a window tint that affects the radio
wave signals is installed.
If there is a lot of snow or ice on the
vehicle, in particular around the wheels
or wheel housings.
If non −genuine Scion wheels are used.
If tire chains are used. If the tire pressure warning light continues
to come on after blinking for 1 minute
when the engine switch is in “ON” posi-
tion, have the system checked by your
Scion dealer.
Even if you use genuine wheels, the tire
pressure warning system may not work
properly with some types of tires.
Pushing the tire pressure warning reset
switch should not turn off the tire pressure
warning light.

129
FCC ID: PAXPMV107J
FCC ID: HYQ13BCX
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful
interference, and (2) this device must
accept any interference received, includ-
ing interference that may cause unde-
sired operation.
FCC WARNING:
Changes or modifications not ex-
pressly approved by the party respon-
sible for compliance could void the
user’s authority to operate the equip-
ment.
REPLACING TIRES AND WHEELS
When replacing the tires and wheels, be
sure to install tire pressure warning valves
and transmitters. ID codes on the tire
pressure warning valves and transmitters
are registered in the tire pressure warning
computer. When replacing a tire pressure
warning valve and transmitter, it is neces-
sary to register the ID code of tire pres-
sure warning valve and transmitter. Have
the ID code registered by your Scion deal-
er.
If the ID code is not registered, the sys-
tem will not work properly. After driving
for about 20 minutes, the tire pressure
warning light comes on after blinking for
1 minute to indicate a system malfunction.
NOTICE
When the tires or tire pressure warn-
ing valves and transmitters must be
replaced, have them replaced by your
Scion dealer. The tire pressure warn-
ing valves and transmitters will be
affected by the installation or removal
of tires.
Tire pressure warning reset switch
When initializing the system, the present
tire inflation pressure is stored as stan-
dard. The tire pressure warning system
determines decreased air pressure by
comparing the present and the standard
tire inflation pressures. When you change
the set tire inflation pressure, it is neces-
sary to initialize the tire pressure warning
system.
When changing the tire inflation pres-
sure by changing traveling speed or
load weight, etc.

130
To initialize the system, perform the fol-
lowing:1. Park the vehicle in a safe place and turn the engine switch to the “LOCK”
position.
2. Adjust the pressure of all the installed tires to the specified cold tire inflation
pressure level. (See “Tires” on page
273.)
3. Turn the engine switch is in “ON” posi- tion.
4. Push and hold the tire pressure warn- ing reset switch until the tire pressure
warning light blinks slowly three times.
5. Wait for a few minutes with the engine switch is in “ON” position, and then
turn the engine switch to the “LOCK”
position.
If you push the tire pressure warning re-
set switch while the vehicle is moving,
initialization is not performed.
If you push the tire pressure warning re-
set switch accidentally and initialization is
performed, adjust the tire inflation pres-
sure to the specified level and initialize
the system again.
If the tire pressure warning light does not
blink slowly three times when you push
and hold the tire pressure warning reset
switch, initialization has failed and the tire
pressure warning system may not work
properly. In this case, initialize the sys-
tem again. If initialization cannot be per-
formed, have the system checked at your
Scion dealer.
CAUTION
Do not push the tire pressure warn-
ing reset switch without first adjust-
ing the tire inflation pressure to the
specified level. Otherwise, the tire
pressure warning light may not come
on even if the tire inflation pressure
is low, or it may come on when the
tire inflation pressure is actually nor-
mal.

164
When the antilock brake system is ac-
tivated, the following conditions may
occur. They do not indicate a malfunc-
tion of the system:
You may hear the anti−lock brake sys-
tem operating and feel the brake pedal
pulsating and the vibrations of the ve-
hicle body and steering wheel. You
may also hear the motor sound in the
engine compartment even after the ve-
hicle is stopped.
At the end of the anti −lock brake sys-
tem activation, the brake pedal may
move a little forward.
CAUTION
Do not overestimate the antilock
brake system: Although the antilock
brake system assists in providing ve-
hicle control, it is still important to
drive with all due care and maintain
a moderate speed and safe distance
from the vehicle in front of you, be-
cause there are limits to the vehicle
stability and effectiveness of steering
wheel operation even with the anti
lock brake system on.
If tire grip performance exceeds its
capability, or if hydroplaning occurs
during high speed driving in the rain,
the antilock brake system does not
provide vehicle control.
Antilock brake system is not de-
signed to shorten the stopping dis-
tance: Always drive at a moderate
speed and maintain a safe distance
from the vehicle in front of you.
Compared with vehicles without an
antilock brake system, your vehicle
may require a longer stopping dis-
tance in the following cases:
Driving on rough, gravel or snow
covered roads.
Driving with tire chains installed.
Driving over the steps such as the
joints on the road.
Driving on roads where the road
surface is pitted or has other differ-
ences in surface height.
Install all 4 tires of specified size at
appropriate pressure: The antilock
brake system detects vehicle speeds
using the speed sensors for respec-
tive wheels’ turning speeds. The use
of tires other than specified may fail
to detect the accurate turning speed
resulting in a longer stopping dis-
tance.

170
7. “TUBELESS” or “TUBE TYPE”
—A tubeless tire does not have a
tube inside the tire and air is direct-
ly filled in the tire. A tube type tire
has a tube inside the tire and the
tube maintains the air pressure.
8. Uniform tire quality grad- ing— For details, see “Uniform tire
quality grading” that follows.
9. Load limit at maximum cold tire inflation pressure— For details,
see “Checking and replacing tires”
on page 252.
10. Maximum cold tire inflation pressure— This means the pres-
sure to which a tire may be in-
flated. For recommended cold tire
inflation pressure, see “Tires” on
page 273.

171
This illustration indicates typical tire
symbols.
1. “TEMPORARY USE ONLY”— A
compact spare tire is identified by
the phrase “TEMPORARY USE
ONLY” molded into its sidewall.
This tire is designed for temporary
emergency use only. For details,
see “Compact spare tire” on page
207.
2. Tire size— For details, see “Tire
size” on page 173.
3. DOT and Tire Identification Number (TIN)— For details, see
“DOT and Tire Identification Num-
ber (TIN)” on page 172.
4. Location of treadwear indica- tors— For details, see “Checking
and replacing tires” on page 252.
5. Load limit at maximum cold tire inflation pressure— For details,
see “Checking and replacing tires”
on page 252.
— Tire symb o ls
(Compact spare tire)

1726. Maximum cold tire inflation
pressure— This means the pres-
sure to which a tire may be in-
flated. For recommended cold tire
inflation pressure, see “Tires” on
page 273.
7. Tire ply composition and materi- als— Plies mean a layer of rubber −
coated parallel cords. Cords mean
the strands forming the plies in the
tire.
8. “TUBELESS” or “TUBE TYPE” —A tubeless tire does not have a
tube inside the tire and air is direct-
ly filled in the tire. A tube type tire
has a tube inside the tire and the
tube maintains the air pressure.
9. Radial tires or biasply tires— A
radial tire has “RADIAL” on the
sidewall. A tire not marked with
“RADIAL” is a bias −ply tir e.
21A009a
This illustration indicates typical DOT
and Tire Identification Number (TIN).
1. “DOT” symbol
2. Tire Identification Number (TIN)
3. Tire manufacturer ’s identification mark
4. Tire size code
5. Manufacturer ’s optional tire type code (3 or 4 letters)
6. Manufacturing week
7. Manufacturing year The “DOT” symbol certifies that the
tire conforms to applicable Federal
Motor Vehicle Safety Standards.
—DOT and Tire Identification
Number (TIN)

176Ti r e relat ed ter m
Meaning
Cold tire inflation pressure
tire inflation pressure when the vehicl
e has been parked for at leas t 3 hour s
or more, or it has not been driven more than 1.5 km or 1 mile under that
condition
Maximum inflation pressurethe maximum cold inflation pressure to which a tire may be inflated and it is
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 standard items which may be replaced)
of automatic transmission, power steering, power brakes, power windows, pow-
er 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 the maximum
capacity of fuel, oil, and coolant, and, if so equipped, air conditioning and addi-
tional weight optional engine
Maximum loaded vehicle weight
t he sum of —
(a) curb weight;
(b) accessory weight;
(c) vehicle capacity weight; and
(d) production options weight
Normal occupant weight68 kg (150 lb.) times the number of occupants specified in the second column
of Table 1 that follows
—Glossary of tire terminology

178Ti r e relat ed ter m
Meaning
Weather sidethe surface area of the rim no
t covered by the inflated tire
Beadthe 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 tirea pneumatic tire in which the ply cords that extend to the beads are laid at
alternate angles substantially less than 90 degrees to the centerline 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 the plies in the tire
Cord separationthe parting of cords from adjacent rubber compounds
Crackingany parting within the tread, sidewall, or innerliner of the tire extending 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 radi ally 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 tirea tire designed to operate at higher loads and at higher inflation pressures
than the corresponding standard tire

179
Ti r e relat ed ter m
Meaning
Groovethe space between two adjacent tread ribs
Innerlinerthe layer(s) forming the inside surface of a tubeless tire that contains the inflat-
ing medium within the tire
Innerliner separationthe parting of the innerliner from cord material in the carcass
Intended outboard sidewall
(A) the sidewall that contains a whitewall, bears white lettering or bears
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 asymmetrical tire that has a particular side that must always face outward when mounted on a vehicle
Light truck (LT) tirea tire designated by its manufacturer as primarily intended for use on lightweight
trucks or multipurpose passenger vehicles
Load ratingthe maximum load that a tire is rated to carry for a given inf lat ion pr es s ur e
Maximum load ratingthe load rating for a tire at the maximu m permissible inflation pressure for that
tire
Maximum permissible inflation pres-
surethe maximum cold inflat ion 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