2017 MAZDA MODEL CX-3 ECU

3–37
Before Driving
Security System
M o d i¿ cation and Add-On
Equipment
Mazda cannot guarantee the immobilizer
and the theft-deterrent systems' operation
if the system has been modi¿ ed or if any
add-on equipment has been installed.
CAUTION
To avoid damage to the vehicle, do
not modify the system or install any
add-on equipment to the immobilizer
and the theft-deterrent systems or the
vehicle.

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
vehicle theft.
If you have a problem with the
immobilizer system or the key, consult an
Authorized Mazda Dealer.
CAUTION
 


¾ Radio equipment like this is governed by
laws in the United States.
  Changes or modifi cations not expressly
approved by the party responsible
for compliance could void the user's
authority to operate the equipment.
 


¾ To avoid damage to the key, do not: 



¾ Drop the key.



¾ Get the key wet.



¾ Expose the key to any kind of
magnetic fi eld.
 


¾ Expose the key to high temperatures
on places such as the dashboard or
hood, under direct sunlight.
 


¾ If the engine does not start with the
correct key, and the security indicator
light keeps illuminating or fl ashing, the
system may have a malfunction. Consult
an Authorized Mazda Dealer.

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3–38
Before Driving
Security System
N O T E
 


y The keys carry a unique electronic code.
For this reason, and to assure your
safety, obtaining a replacement key
requires some waiting time. They are
only available through an Authorized
Mazda Dealer.
 


y Always keep a spare key in case one
is lost. If a key is lost, consult an
Authorized Mazda Dealer as soon as
possible.
 


y If 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.

Operation
N O T E
 


y The engine may not start and security
indicator light may illuminate or À ash
if the key is placed in an area where it
is dif¿ cult for the system to detect the
signal, such as on the dashboard or in
the glove compartment. Move the key
to a location within the signal range,
switch the ignition off, and then restart
the engine.
 


y Signals from a TV or radio station, or
from a transceiver or mobile telephone
could interfere with your immobilizer
system. If you are using the proper key
and the engine fails to start, check the
security indicator light.

Arming
The system is armed when the ignition is
switched from ON to off.
The security indicator light in the
instrument cluster À ashes every 2 seconds
until the system is disarmed.



Disarming
The system is disarmed when the
ignition is switched ON with the correct
programmed key. The security indicator
light illuminates for about 3 seconds and
then turns off. If the engine does not start
with the correct key, and the security
indicator light remains illuminated or
À ashing, try the following:
Make sure the key is within the
operational range for signal transmission.
Switch the ignition off, and then restart the
engine. If the engine does not start after
3 or more tries, contact an Authorized
Mazda Dealer.
N O T E
 


y If the security indicator light À ashes
continuously while you are driving,
do not shut off the engine. Go to an
Authorized Mazda Dealer and have it
checked. If the engine is shut off while
the indicator light is À ashing, you will
not be able to restart it.
 


y Because the electronic codes are
reset when the immobilizer system
is repaired, the keys are needed.
Make sure to bring all the keys to an
Authorized Mazda Dealer so that they
can be programmed.

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3–39
Before Driving
Security System
*Some models.
Theft-Deterrent System *
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 À ashing the hazard
warning lights.

The system will not function unless it's
properly armed. So when you leave the
vehicle, follow the arming procedure
correctly.
Operation
System triggering conditions
The horn sounds intermittently and the
hazard warning lights À ash for about 30
seconds when the system is triggered by
any one of the following:
 


y Unlocking a door with the key, door
lock switch, or an inside door-lock knob.
 


y Forcing open a door, the hood or the
liftgate.
 


y Opening the hood by operating the hood
release handle.
 


y Switching the ignition ON without using
the push button start.

If the system is triggered again, the lights
and horn will activate until the driver's
door or the liftgate is unlocked with the
transmitter.
(With advanced key)
The lights and horn can also be
deactivated by pressing the request switch
on a door.
N O T E
 


y The liftgate does not open while the
theft-deterrent system is operating.
 


y If the battery goes dead while the theft-
deterrent system is armed, the horn will
activate and the hazard warning lights
will À ash when the battery is charged or
replaced.

How to Arm the System
1. Close the windows and the moonroof *
securely.
2. Switch the ignition OFF.
3. Make sure the hood, the doors, and the
liftgate are closed.
4. Press the lock button on the transmitter
or lock the driver's door from the
outside with the auxiliary key.
The hazard warning lights will À ash
once.
The following method will also arm the
theft-deterrent system:
Press the door-lock switch “
” while
any door is open and then close all of
the doors.
(With the advanced keyless function)
Press a request switch.

The security indicator light in the
instrument panel À ashes twice per
second for 20 seconds.


5. After 20 seconds, the system is fully
armed.

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3–40
Before Driving
Security System
N O T E
 


y The theft deterrent system can also be
armed by activating the auto relock
function with all the doors, the liftgate
and the hood closed.
  Refer to Transmitter on page 3-4 .



y The system will disarm if one of the
following operations takes place within
20 seconds after pressing the lock
button:
 


y Unlocking any door.



y Opening any door.



y Opening the hood.



y Switching the ignition ON.



y (With the advanced keyless
function)

 Pressing the electric liftgate opener
while the key is being carried.
  To rearm the system, do the arming
procedure again.
 


y When the doors are locked by pressing
the lock button on the transmitter
or using the auxiliary key while the
theft-deterrent system is armed, the
hazard warning lights will À ash once to
indicate that the system is armed.

To Turn Off an Armed System
An armed system can be turned off using
any one of the following methods:
 


y Pressing the unlock button on the
transmitter.
 


y Starting the engine with the push button
start.
 


y (With the advanced keyless function) 


y
 Pressing a request switch on the doors.

The hazard warning lights will À ash twice.
NOTE
When the doors are unlocked by pressing
the unlock button on the transmitter while
the theft-deterrent system is turned off, the
hazard warning lights will À ash twice to
indicate that the system is turned off.

To Stop the Alarm
A triggered alarm can be turned off using
any one of the following methods:
 


y Pressing the unlock button on the
transmitter.
 


y Starting the engine with the push button
start.
 


y (With the advanced keyless function) 


y
 Pressing a request switch on the doors.


y
 Pressing the electric liftgate opener
while the key is being carried.


The hazard warning lights will À ash twice.
Theft-Deterrent Labels

A label indicating that your vehicle is
equipped with a Theft-Deterrent System is
in the glove compartment.

Mazda recommends that you af¿ x it to the
lower rear corner of a front door window.
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3–42
Before Driving
Driving Tips
Hazardous Driving
WARNING
Be extremely careful if it is necessary to
downshift on slippery surfaces:
Downshifting into lower gear
while driving on slippery surfaces is
dangerous. The sudden change in tire
speed could cause the tires to skid. This
could lead to loss of vehicle control
and an accident.

When driving on ice or in water, snow,
mud, sand, or similar hazards:
 


y Be cautious and allow extra distance for
braking.
 


y Avoid sudden braking and sudden
maneuvering.
 


y Do not pump the brakes. Continue to
press down on the brake pedal.
  Refer to Antilock Brake System (ABS)
on page 4-58 .
 


y If you get stuck, select a lower gear and
accelerate slowly. Do not spin the front
wheels.
 


y For more traction in starting on slippery
surfaces such as ice or packed snow,
use sand, rock salt, chains, carpeting, or
other nonslip material under the front
wheels.

N O T E
Use snow chains only on the front wheels.
Floor Mat
We recommend the use of Genuine
Mazda À oor mats.
WARNING
Make sure the fl oor mats are hooked on
the retention pins to prevent them from
bunching up under the foot pedals:
Using a fl oor mat that is not secured is
dangerous as it will interfere with the
accelerator and brake pedal operation,
which could result in an accident.

Do not install two fl oor mats, one on top
of the other, on the driver's side:
Installing two fl oor mats, one on top
of the other, on the driver's side is
dangerous as the retention pins can
only keep one fl oor mat from sliding
forward.
If using an all weather mat for winter
use always remove the original fl oor
mat.
Loose fl oor mat(s) will interfere with
the foot pedal and could result in an
accident.


When setting a À oor mat, position the À oor
mat so that its grommets are inserted over
the pointed end of the retention posts.
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3–45
Before Driving
Driving Tips
Tire Chains
Check local regulations before using tire
chains.
CAUTION
 


¾ Chains may aff ect handling.



¾ Do not go faster than 50 km/h (30
mph) or the chain manufacturer's
recommended limit, whichever is lower.
 


¾ Drive carefully and avoid bumps, holes,
and sharp turns.
 


¾ Avoid locked-wheel braking.



¾ Do not use chains on a temporary spare
tire; it may result in damage to the
vehicle and to the tire.
 


¾ Do not use chains on roads that are free
of snow or ice. The tires and chains could
be damaged.
 


¾ Chains may scratch or chip aluminum
wheels.

N O T E
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 only.
Do not use chains on the rear tires.
Please consult an Authorized Mazda
Dealer.
Installing the chains
1. If your vehicle is equipped with wheel
covers remove them, otherwise the
chain bands will scratch them.
2. Secure the chains on the front tires as
tightly as possible.
Always follow the chain manufacturer's
instructions.
3. Retighten the chains after driving
1/2—1 km (1/4—1/2 mile).

Driving In Flooded Area
WARNING
Dry off brakes that have become
wet by driving slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the brake
performance returns to normal:
Driving with wet brakes is dangerous.
Increased stopping distance or the
vehicle pulling to one side when
braking could result in a serious
accident. Light braking will indicate
whether the brakes have been aff ected.

CAUTION
Do not drive the vehicle on fl ooded
roads as it could cause short circuiting
of electrical/electronic parts, or
engine damage or stalling from
water absorption. If the vehicle has
been immersed in water, consult an
Authorized Mazda Dealer.

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4–4
When Driving
Start/Stop Engine
Ignition Switch
Push Button Start Positions
The system operates only when the driver
is in the vehicle or within operational
range while the key is being carried.
Each time the push button start is pressed,
the ignition switches in the order of off,
ACC, and ON. Pressing the push button
start again from ON switches the ignition
off.

Push button startIndicator light

N O T E
 


y The engine starts by pressing the push
button start while depressing the brake
pedal. To switch the ignition position,
press the push button start without
depressing the pedal.
 


y Do not leave the ignition switched ON
while the engine is not running. Doing
so could result in the battery going
dead. If the selector lever is in the P
position, and the ignition is in ACC, the
ignition switches off automatically after
about 25 minutes.

O f f
The power supply to electrical devices
turns off and the push button start indicator
light (amber) also turns off.
In this position the steering wheel is
locked.
WARNING
Before leaving the driver's seat, always
switch the ignition off , set the parking
brake, and make sure the selector lever
is in P:
Leaving the driver's seat without
switching the ignition off , setting the
parking brake, and shifting the selector
lever to P is dangerous. Unexpected
vehicle movement could occur which
could result in an accident.
In addition, if your intention is to leave
the vehicle for even a short period, it
is important to switch the ignition off ,
as leaving it in another position will
disable some of the vehicle's security
systems and run the battery down.

ACC (Accessory)
Some electrical accessories will operate
and the indicator light (amber) illuminates.
N O T E
The keyless entry system does not function
while the push button start has been
pressed to ACC, and the doors will not
lock/unlock even if they have been locked
manually.

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4–8
When Driving
Start/Stop Engine
7. Press the push button start after both
the KEY indicator light (green) in the
instrument cluster and the push button
start indicator light (green) illuminate.
N O T E
 


y After starting the engine, the push
button start indicator light (amber)
turns off and the ignition switches to the
ON position.
 


y After pressing the push button start and
before the engine starts, the operation
sound of the fuel pump motor from near
the fuel tank can be heard, however, this
does not indicate a malfunction.

8. After starting the engine, let it idle for
about ten seconds.
N O T E
 


y Whether the engine is cold or warm, it
should be started without the use of the
accelerator.
 


y If the engine does not start the ¿ rst
time, refer to Starting a Flooded Engine
under Emergency Starting. If the engine
still does not start, have your vehicle
inspected by an Authorized Mazda
Dealer (page 7-21 ).

Engine Start Function When Key
Battery is Dead
CAUTION
When starting the engine by holding
the transmitter over the push button
start due to a dead key battery or a
malfunctioning key, be careful not
to allow the following, otherwise the
signal from the key will not be received
correctly and the engine may not start.
 


¾ Metal parts of other keys or metal
objects touch the key.
 

 


¾ Spare keys or keys for other vehicles
equipped with an immobilizer
system touch or come near the key.
 

 


¾ Devices for electronic purchases, or
security passage touch or come near
the key.

If the engine cannot be started due to a
dead key battery, the engine can be started
using the following procedure:

1. Continue to depress the brake pedal
¿ rmly until the engine has completely
started.
2. Verify that the push button start
indication light (green) À ashes.
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