2009 TOYOTA MATRIX wheel

308 4-3. Do-it-yourself maintenance
■Tire types
1 Summer tires
Summer tires are high-speed performance tires best suited to highway
driving under dry conditions. Since summer tires do not have the same
traction performance as snow tires, summer tires are inadequate for
driving on snow-covered or icy roads. For driving on snow-covered
roads or icy roads, the use of snow tires is recommended. When
installing snow tires, be sure to replace all four tires.
2 All season tires
All season tires are designed to provide better traction in snow and to
be adequate for driving in most winter conditions, as well as for use
year round. All season tires, however, do not have adequate traction
performance compared with snow tires in heavy or loose snow. Also,
all season tires fall short in acceleration and handling performance
compared with summer tires in highway driving.
3Snow tires
For driving on snow-covered roads or icy roads, we recommend using
snow tires. If you need snow tires, select tires of the same size, con-
struction and load capacity as the originally installed tires. Since your
vehicle has radial tires as original equipment, make sure your snow
tires also have radial construction. Do not install studded tires without
first checking local regulations for possible restrictions. Snow tires
should be installed on all wheels. (→P. 144)
■Initializing the tire pressure warning system
Initialize the tires with the tire inflation pressure adjusted to the specified
level.

311 4-3. Do-it-yourself maintenance
4
Maintenance and care
NOTICE
■Repairing or replacing tires, wheels and tire pressure warning
valves and transmitters
When removing or fitting the wheels, tires or the tire pressure warning
valves and transmitters, contact your Toyota dealer as the tire pressure
warning valves and transmitters may be damaged if not handled cor-
rectly.
■To avoid damaging the tire pressure warning valves and transmit-
ters
Do not use liquid sealants on flat tires.
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or pot-
holes.
These conditions may cause losses in tire air pressure, reducing the
cushioning ability of the tires. In addition, driving on rough roads may
cause damage to the tires themselves, as well as the vehicle’s wheels
and body.
■If tire inflation pressures become low while driving
Do not continue driving, or your tires and/or wheels may be ruined.

315 4-3. Do-it-yourself maintenance
4
Maintenance and care
CAUTION
■Proper inflation is critical to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions
may occur and result in an accident causing death or serious injury.
●Excessive wear
●Uneven wear
●Poor handling
●Possibility of blowouts resulting from overheated tires
●Poor sealing of the tire bead
●Wheel deformation and/or tire separation
●A greater possibility of tire damage from road hazards
NOTICE
■When inspecting and adjusting tire inflation pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or moisture could get into the valve and
cause air leakage, which could result in an accident. If the caps have
been lost, replace them as soon as possible.

316
4-3. Do-it-yourself maintenance
Wheels
If a wheel is bent, cracked or heavily corroded, it should be
replaced.
Otherwise, the tire may separate from the wheel or cause loss of
handling control.
■Wheel selection
When replacing wheels, care should be taken to ensure that
they are equivalent to those removed in load capacity, diameter,
rim width, and offset.
Replacement wheels are available at your Toyota dealer.
Toyota does not recommend using:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
■Aluminum wheel precautions
●Use only Toyota wheel nuts and wrenches designed for use
with your aluminum wheels.
●When rotating, repairing or changing your tires, check that the
wheel nuts are still tight after driving 1000 miles (1600 km).
●Be careful not to damage the aluminum wheels when using
tire chains.
●Use only Toyota genuine balance weights or equivalent and
use a plastic or rubber hammer when balancing your wheels.

317 4-3. Do-it-yourself maintenance
4
Maintenance and care
■When replacing wheels
The wheels of your Toyota, except for the compact spare tire, are
equipped with tire pressure warning valves and transmitters that allow
the tire pressure warning system to provide advanced warning in the
event of a loss in tire inflation pressure. Whenever wheels are replaced,
the tire pressure warning valves and transmitters must be installed. (→P.
304)
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may result in loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing serious
injury or death.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure warn-
ing valves and transmitters, make sure to have tires serviced by your
Toyota dealer or other qualified service shop. In addition, make sure to
purchase your tire pressure warning valves and transmitters at your
Toyota dealer.
●Ensure that only genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels.

330 4-3. Do-it-yourself maintenance
13 HTR-IG 10 AAir conditioning system, rear win-
dow defogger
14 WIPER 25 A Windshield wipers
15 RR WIPER 15 A Rear window wiper
16 WASHER 15 A Windshield washer
17 ECU-IG NO. 1 10 AMain body ECU, electric power
steering, electric cooling fan(s),
shift lock control system, anti-lock
brake system, multiport fuel injec-
tion system/sequential multiport
fuel injection system, tire pressure
warning system, vehicle stability
control system
18 ECU-IG NO. 2 10 ABack-up lights, charging system,
rear window defogger
19 OBD 7.5 A On-board diagnosis system
20 STOP 10 AStop lights, high mounted stop-
light, anti-lock brake system, vehi-
cle stability control system,
multiport fuel injection system/
sequential multiport fuel injection
system, shift lock control system
21 DOOR 25 A Power door lock system
22 ACC-B 25 A CIG, ACC
23 4WD 7.5 A All wheel drive system
24 FR FOG 15 A Front fog lights
25 AM1 7.5 AStarting system, shift lock control
system, ACC, CIG
26 DEF 30 ARear window defogger, MIR HTR,
multiport fuel injection system/
sequential multiport fuel injection
system
27 POWER 30 A Power windows
FuseAmpereCircuit

342
5-1. Essential information
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission. Contact
your Toyota dealer before towing.
●The engine is running, but the vehicle will not move.
●The vehicle makes an abnormal sound.
If towing is necessary, we recommend having your vehicle towed by
your Toyota dealer or a commercial towing service, using a lift-type
truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/pro-
vincial and local laws.
If towing from the front, the vehicle's rear wheels and axles must be
in good condition. (→P. 345)
If they are damaged, use a towing dolly or flat bed truck.

5
When trouble arises
343 5-1. Essential information
Emergency towing
If a tow truck is not available, in an emergency your vehicle may be
temporarily towed using a cable or chain secured to the emergency
towing eyelet. This should only be attempted on hard surfaced roads
for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
1.8 L 4-cylinder (2ZR-FE) engine
Towing eyelet
2.4 L 4-cylinder (2AZ-FE) engine
Towing eyelet