2008 MAZDA MODEL 3 HATCHBACK ECU

Black plate (97,1)
Immobilizer System
The immobilizer system allows the engine
to start only with a key the system
recognizes.
If someone attempts to start the engine
with an unrecognized key, the engine will
not start, thereby helping to prevent the
theft of your vehicle.
CAUTION
ØRadio equipment like this is
governed by laws in the United
States.
Changes or modifications not
expressly approved by the party
responsible for compliance could
void the user's authority to
operate the equipment.
ØTo avoid damage to the key, do
not:
ØDrop the key.
ØGet the key wet.
ØExpose the key to any kind of
magnetic field.
ØExpose the key to high
temperatures on places such as
the dashboard or hood, under
direct sunlight.
CAUTION
When starting the engine do not
allow the following, as the engine
may not start due to the electronic
signal from the ignition key not being
transmitted correctly.
ØA key ring rests on the key grip.
ØMetal parts of other keys or metal
objects touch the key grip.
ØSpare keys or keys for other
vehicles equipped with an
immobilizer system touch or come
near the key grip.
ØDevices for electronic purchases, or
security passage touch or come
near the key.
Knowing Your Mazda
Security System
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Form No.8X41-EA-07F

Black plate (98,1)
NOTEl(U.S.A.)
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, including interference that may
cause undesired operation.
l(CANADA)
This device complies with RSS-210 of
Industry CANADA. Operation is subject to
the following two conditions: (1) this device
may not cause interference, and (2) this
device must accept any interference,
including interference that may cause
undesired operation of the device.
qOperation
Arming
The system is armed when the ignition
switch is turned from the ON to the ACC
position.
The security indicator light in the
instrument panel flashes every 2 seconds
until the system is disarmed.
Disarming
The system is disarmed when the ignition
switch is turned to the ON position with
the correct ignition key.
The security indicator light illuminates for
about 3 seconds and goes out.If the engine doesn't start with the correct
ignition key, and the security indicator
light keeps illuminating or flashing, the
system may have a malfunction. Consult
an Authorized Mazda Dealer.
NOTE
lIf the security indicator light comes on and
stays on when the ignition switch is turned
to the ON position, the engine will not start.
lSignals from a TV or radio station, or from
a transceiver or a mobile telephone, could
interfere with your immobilizer system. If
you are using the proper key and your
engine fails to start, check the security
indicator light. If it is flashing, remove the
ignition key and wait 2 seconds or more,
then reinsert it and try starting the engine
again. If it doesn't start after 3 or more
tries, contact an Authorized Mazda Dealer.
lIf the security indicator light flashes
continuously while you are driving, don't
shut off the engine. Go to an Authorized
Mazda Dealer and have it checked. If you
shut off the engine while the light is
flashing you won't be able to restart it.
lSince the electronic codes are reset when
repairing the immobilizer system, the keys
are needed. Bring all the existing keys to an
Authorized Mazda Dealer.
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Knowing Your Mazda
Security System
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Form No.8X41-EA-07F

Black plate (99,1)
qMaintenance
If you have a problem with the
immobilizer system or the key, consult an
Authorized Mazda Dealer.
NOTE
lThe keys carry a unique electronic code.
For this reason, and to assure your safety,
obtaining replacement key requires some
waiting time. They are only available
through an Authorized Mazda Dealer.
lAlways keep a spare key, in case one is lost.
If a key is lost, contact an Authorized
Mazda Dealer as soon as possible.
lIf you lose a key, an Authorized Mazda
Dealer will reset the electronic codes of
your remaining keys and immobilizer
system. Bring all the remaining keys to an
Authorized Mazda Dealer to reset.
Starting the vehicle with a key that has not
been reset is not possible.
qModification and Add-On
Equipment
Mazda cannot guarantee the immobilizer
system's operation if the system has been
modified or if any add-on equipment has
been installed to it.
CAUTION
To avoid damage to your vehicle, do
not modify the system or install any
add-on equipment to the immobilizer
system or the vehicle.
Theft-Deterrent Systemí
If the theft deterrent system detects an
inappropriate entry into the vehicle, which
could result in the vehicle or its contents
being stolen, the alarm alerts the
surrounding area of an abnormality by
sounding the horn and flashing the hazard
warning lights.
Refer to Operation on page 3-27.
NOTE
lThe theft-deterrent system operates with the
key or the keyless entry system transmitter.
lThe system will not function unless it is
properly armed. To properly secure the
vehicle, always make sure all windows are
completely closed and all doors and the
trunk lid/liftgate are locked before leaving
the vehicle. Remember to take your key and
transmitter.
qOperation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights flash for about 3
minutes when the system is triggered by
any one of the following:
lForcing open a door, the hood or the
trunk lid/liftgate.
lUnlocking a door with the door lock
switch.
lOpening a door by operating an inside
door-lock knob.
lOpening the hood by operating the
hood release handle.
lOpening the trunk lid by operating the
trunk lid release lever.
If the system is triggered again, the lights
and horn will activate until a door or the
trunk lid is unlocked with the key or with
the transmitter.
Knowing Your Mazda
Security System
3-27íSome models. Mazda3_8X41-EA-07F_Edition2 Page99
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Form No.8X41-EA-07F

Black plate (100,1)
qHow to Arm the System
1. Remove the key from the ignition
switch.
2. Make sure the hood is closed. Close
and lock all doors and the liftgate/trunk
lid from the outside using the key. If
you have the keyless entry system,
press the lock button on the transmitter.
The hazard warning lights will flash
once to indicate that the system is
armed.
The following method will also arm the
theft-deterrent system:
Close the hood and the liftgate/trunk
lid . Press the area on the door-lock
switch marked“LOCK”once. Close all
doors.
NOTE
Locking the doors with the inside door-lock
knob will not arm the system.
qTo Turn off an Armed System
An armed system can be turned off by any
one of the following methods:
lUnlock a door or the trunk lid with the
key.
lPress the unlock button on the keyless
entry system transmitter.
lInsert the key into the ignition switch
and turn it to the ON position.
qTo Stop an Alarm
A triggered alarm can be turned off by
any one of the following methods:
lUnlock a door or the trunk lid with the
key.
lPress the unlock button on the keyless
entry system transmitter.NOTE
If you have any problem with the theft-
deterrent system, consult an Authorized Mazda
Dealer.
qTheft-Deterrent Labels
A label indicating that your vehicle is
equipped with a Theft-Deterrent System is
in the glove box.
Mazda recommends that you affix it to the
lower rear corner of a front door window.
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Security System
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Form No.8X41-EA-07F

Black plate (114,1)
WARNING
Use only the same size and type tires
(snow, radial, or non-radial) on all four
wheels:
Using tires different in size or type is
dangerous. Your vehicle's handling
could be greatly affected and result
in an accident.
CAUTION
Check local regulations before using
studded tires.
NOTE
If your vehicle is equipped with the tire
pressure monitoring system, the system may
not function correctly when using tires with
steel wire reinforcement in the sidewalls (page
5-30).
qTire Chains
Check local regulations before using tire
chains.
CAUTION
ØChains may affect handling.
ØDo not go faster than 50 km/h (30
mph) or the chain manufacturer's
recommended limit, whichever is
lower.
ØDrive carefully and avoid bumps,
holes, and sharp turns.
ØAvoid locked-wheel braking.
ØDo not use chains on a temporary
spare tire; it may result in damage
to the vehicle and to the tire.
ØDo not use chains on roads that
are free of snow or ice. The tires
and chains could be damaged.
ØChains may scratch or chip
aluminum wheels.NOTE
If your vehicle is equipped with the tire
pressure monitoring system, the system may
not function correctly when using tire chains.
Install the chains on the front tires.
Do not use chains on the rear tires.
Use only genuine Mazda tire chains.
Please consult an Authorized Mazda
Dealer.
Installing the chains
1. Secure the chains on the front tires as
tightly as possible. Always follow the
chain manufacturer's instructions.
2. Retighten the chains after driving 1/2
―1 km (1/4―1/2 mile).
4-10
Before Driving Your Mazda
Driving Tips
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Form No.8X41-EA-07F

Black plate (121,1)
WARNING
Remove the key only when the vehicle
is parked:
Removing the key from the ignition
switch while the vehicle is moving is
dangerous. Removing the key allows
the steering wheel to lock. You will
lose steering control and a serious
accident could occur.
Before leaving the driver's seat, always
put the key to LOCK position, set the
parking brake and make sure the shift
lever is in P with an automatic
transaxle or in 1 or R with a manual
transaxle:
Intentionally placing the key into
LOCK position is much more
important where you will not be
removing the key to leave the vehicle
and because leaving it in other
positions will disable some of the
vehicle security systems and run the
battery down.
Leaving the driver's seat without
putting the ignition switch in LOCK
position, setting the parking brake
and the shift lever is in P with an
automatic transaxle or in 1 or R with
a manual transaxle is dangerous.
Unexpected vehicle movement could
occur. This could cause an accident.
NOTE
If turning the key is difficult, jiggle the steering
wheel from side to side.
Leaving the key or start knob in any position
but LOCK position also disables some of the
security features and may run the battery
down.
ACC (Accessory)
The steering wheel unlocks and some
electrical accessories will operate.
ON
This is the normal running position after
the engine is started. The warning lights
(except brakes) should be inspected
before the engine is started (page 5-37).
NOTE
When the ignition switch is turned to the ON
position, the sound of the fuel pump motor
operating near the fuel tank can be heard. This
does not indicate an abnormality.
START
The engine is started in this position. It
will crank until you release the key; then
it returns to the ON position. The brake
warning light can be checked after the
engine is started (page 5-37).
qIgnition Key Reminder
If the ignition switch is in the LOCK or
ACC position with the key inserted, a
continuous beep sound will be heard
when the driver's door is opened.
Driving Your Mazda
Starting and Driving
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Form No.8X41-EA-07F

Black plate (124,1)
qParking Brake
WARNING
Before leaving the driver's seat, always
put the key to LOCK position, set the
parking brake and make sure the shift
lever is in P with an automatic
transaxle or in 1 or R with a manual
transaxle:
Intentionally placing the key into
LOCK position is much more
important where you will not be
removing the key to leave the vehicle
and because leaving it in other
positions will disable some of the
vehicle security systems and run the
battery down.
Leaving the driver's seat without
putting the ignition switch in LOCK
position, setting the parking brake
and the shift lever is in P with an
automatic transaxle or in 1 or R with
a manual transaxle is dangerous.
Unexpected vehicle movement could
occur. This could cause an accident.
CAUTION
Driving with the parking brake on
will cause excessive wear of the brake
linings or pads.
NOTE
For parking in snow, refer to Winter Driving
(page 4-9) regarding parking brake use.
Setting the parking brake
Depress the brake pedal and then firmly
pull the parking brake lever fully upwards
with a greater amount of force than is
required so that the vehicle holds in the
stationary position.
Releasing the parking brake
Depress the brake pedal and pull the
parking brake lever upwards, then press
the release button. While holding the
button, lower the parking brake lever all
the way down to the released position.
5-6
Driving Your Mazda
Starting and Driving
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Form No.8X41-EA-07F

Black plate (156,1)
Signal Warning/Indicator Lights Page
Seat Belt Warning Light/Beep 5-42
Door-Ajar Warning Light 5-43
Low Washer Fluid Level Warning Light 5-43
Automatic Transaxle Warning Light 5-44
Tire Pressure Monitoring System Warning Light 5-44
Security Indicator Light 5-46
Headlight High-Beam Indicator Light 5-46
Shift Position Indicator Light 5-46
TCS/DSC Indicator Light 5-47
DSC OFF Indicator Light 5-47
Cruise Main Indicator Light (Amber)/Cruise Set Indicator Light (Green) 5-47
Light-On Indicator Light 5-47
Power Steering Malfunction Indicator Light 5-48
Turn Signal/Hazard Warning Indicator Lights 5-48
5-38
Driving Your Mazda
Warning/Indicator Lights and Beep Sounds
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Form No.8X41-EA-07F