MAZDA MODEL MX-5 MIATA 2018 Repair Manual

To use the auxiliary key, pull out the
auxiliary key from th e transmitter while
pressing the knob.
Knob
Keyless Entry System
This system uses the key buttons to
remotely lock and unlock the doors and
the fuel-filler lid, and opens the trunk lid.
The system can start the engine without
having to take the key out of your purse or
pocket.
It can also help you signal for attention or
help.
Operating the theft-deterrent system is
also possible on theft-deterrent
system-equipped vehicles.

System malfunctions or warnings are
indicated by the following warning lights
or beeps.
For vehicles with the type A instrument
cluster, check the displayed message for
more information and, if necessary, have
the vehicle inspected at an Authorized
Mazda Dealer, according to the indication.
ï‚·KEY Warning Light (Red)
Refer to Warning/Indicator Lights on
page 4-26.
ï‚·Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off
(STOP) Warning Beep on page 7-50.
ï‚·Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-50.
If you have a problem with the key,
consult an Authorized Mazda Dealer.

If your key is lost or stolen, consult an
Authorized Mazda Dealer as soon as
possible for a replacement and to make the
lost or stolen k ey inoperative.
Before Driving
Keys
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CAUTION
Radio 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.
NOTE
ï‚·The keyless entry system operation may
vary due to local conditions.
ï‚·The keyless entry system is fully
operational (door/fuel-filler lid lock/
unlock) when the ignition is switched
off. The system does not operate if the
ignition is switched to any position other
than off.
ï‚·If the key does not operate when
pressing a button or the operational
range becomes too small, the battery
may be weak. To install a new battery,
refer to Key Battery Replacement (page
6-33).
ï‚·Battery life is about one year. Replace
the battery with a new one if the KEY
indicator light (green) flashes in the
instrument cluster (for vehicles with a
type A instrument cluster (page 4-26),
messages are displayed in the
instrument cluster). Replacing the
battery about once a year is
recommended because the KEY warning
light/indicator light may not illuminate
or flash depending on the rate of battery
depletion.
ï‚·Additional keys can be obtained at an
Authorized Mazda Dealer. Up to 6 keys
can be used with the keyless functions
per vehicle. Bring all keys to an
Authorized Mazda Dealer when
additional keys are required.
â–¼Tr a n s m i t t e r
Operation buttons
Operation indicator light
NOTE
ï‚·The headlights turn on/off by operating
the transmitter. Refer to Leaving Home
Light on page 4-48.
Before Driving
Keys
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ï‚·(With theft-deterrent system)
The hazard warning lights flash when
the theft-deterrent system is armed or
turned off.
Refer to Theft-Deterrent System on page
3-48.
ï‚·(With the advanced keyless function)
A beep sound can be heard for
confirmation when the doors and the
fuel-filler lid are locked/unlocked using
the key. If you prefer, the beep sound can
be turned off.
The volume of the beep sound can also
be changed.
Refer to Personalization Features on
page 9-9.
Use the following procedure to change the
setting.
1. Switch the ignition off and close both of the doors and the trunk lid.
2. Open the driver's door.
3. Within 30 seconds of opening the driver's door, press and hold the LOCK
button on the key for 5 seconds or
longer (Both of the doors and the
fuel-filler lid are locked and unlocked
when the LOCK button on the key is
pressed and held for five seconds.).
The beep sound activates at the
currently set volume. The setting
changes each time the LOCK button on
the key is pressed and the beep sound
activates at the set volume. (If the beep
sound has been set to not activate, it
will not activate.)
4. The setting change is completed by
doing any one of the following:
ï‚·Switching the ign ition to ACC or
ON.
ï‚·Closing the driver's door.
ï‚·Opening the trunk lid.
ï‚·Not operating the key for 10
seconds.
ï‚·Pressing any button except the
LOCK button on the key.
ï‚·Pressing a request switch.
The operation indicator light flashes when
the buttons are pressed.
Lock button
To lock the doors and the fuel-filler lid,
press the lock button and the hazard
warning lights will flash once.
(With the advanced k eyless function)
A beep sound will be heard once.

To confirm that both doors and the
fuel-filler lid have be en locked, press the
lock button again within 5 seconds. If they
are closed and locked, the horn will sound.
NOTE
ï‚·The doors and the fuel-filler lid can be
locked by pressing the lock button while
any other door or the trunk lid is open.
The hazard warning lights will not flash.
When the lock button is pressed while
any door is open and then the door is
closed, both the doors and the fuel-filler
lid are locked.
ï‚·Confirm that both doors and the
fuel-filler lid are locked visually or
audibly by use of the double click.
ï‚·Make sure both doors and the fuel-filler
lid are locked after pressing the button.
Before Driving
Keys
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ï‚·(With theft-deterrent system)
When the doors are locked by pressing
the lock button on the key while the
theft-deterrent system is armed, the
hazard warning lights will flash once to
indicate that the system is armed.
Unlock button
To unlock the driver's door and the
fuel-filler lid, press the unlock button and
the hazard warning ligh ts will flash twice.
(With the advanced keyless function)
A beep sound will be heard twice.

To unlock both doors and the fuel-filler
lid, press the unlock b utton again within 3
seconds and two more beep sounds will be
heard.
NOTE
ï‚·The system can be set to unlock both
doors by performing a single operation.
Refer to Personalization Features on
page 9-9.
Use the following procedure to change
the setting.
1. Switch the ignition off and close both of the doors and the trunk lid.
2. Open the driver's door.
3. Within 30 seconds of opening the driver's door, press and hold the
UNLOCK button on the key for 5
seconds or longer (the sound of the
doors locking/unlocking can be
heard).
After this, the system switches the
setting each time the UNLOCK
button is pressed (the sound of the
doors locking/unlocking can be
heard).
4. The setting change is completed by doing any one of the following:
ï‚·Switching the igni tion to ACC or
ON.
ï‚·Closing the driver's door.
ï‚·Opening the trunk lid.
ï‚·Not operating the key for 10
seconds.
ï‚·Pressing any button except the
UNLOCK button on the key.
ï‚·Pressing a request switch.
ï‚·(Auto re-lock function)
After unlocking with the key, both doors
and the fuel-filler lid will automatically
lock if any of the following operations
are not performed within about 60
seconds. If your vehicle has a
theft-deterrent system, the hazard
warning lights will flash for
confirmation.
The time required for the doors to lock
automatically can be changed.
Refer to Personalization Features on
page 9-9.
ï‚·A door or the trunk lid is opened.
ï‚·The ignition is switched to any
position other than off.
ï‚·(With theft-deterrent system)
When the doors are unlocked by
pressing the unlock button on the key
while the theft-deterrent system is turned
off, the hazard warning lights will flash
twice to indicate that the system is
turned off.
Before Driving
Keys
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Trunk button
To open the trunk lid, press and hold the
trunk button until the trunk lid opens.
Panic button
If you witness from a distance someone
attempting to break into or damage your
vehicle, press and hold the panic button to
activate the vehicle's alarm. Call
emergency services if necessary.
NOTE
The panic button will work whether any
door or the trunk lid is open or closed.
(Turning on the alarm)
Pressing the panic button for 1 second or
more will trigger the alarm for about 2
minutes and 30 seconds, and the following
will occur:
ï‚·The horn sounds intermittently.
ï‚·The hazard warning lights flash.
(Turning off the alarm)
The alarm stops by pressing any button on
the key.
â–¼ Operational Range
The system operates
only when the driver
is in the vehicle or within operational
range while the key is being carried.
Starting the Engine
NOTE
ï‚·Starting the engine may be possible even
if the key is outside of the vehicle and
extremely close to a door and window,
however, always start the engine from
the driver's seat.
If the vehicle is started and the key is not
in the vehicle, the vehicle will not restart
after it is shut off and the ignition is
switched to off.
ï‚·The trunk is out of the assured
operational range, however, if the key
(transmitter) is operable the engine will
start.
With the advanced keyless function

Interior antenna
Operational range
Without the advanced keyless function

Operational range
Interior antenna
Before Driving
Keys
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NOTE
The engine may not start if the key is
placed in the following areas:
ï‚·Around the dashboard
ï‚·In the storage compartments or the
center console
â–¼Key Suspend Function
If a key is left in the v
ehicle, the functions
of the key left in the vehicle are
temporarily suspended to prevent theft of
the vehicle.
To restore the functions, press the unlock
button on the functions-suspended key in
the vehicle.
Before Driving
Keys
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Advanced Keyless EntrySystem
*
WA R N I N G
Radio waves from the key may affect
medical devices such as pacemakers:
Before using the key near people who use
medical devices, ask the medical device
manufacturer or your physician if radio
waves from the key will affect the device.
The advanced keyless function allows you
to lock/unlock the door , or open the trunk
lid while carry ing the key.

System malfunctions or warnings are
indicated by the following warning lights
or beeps.
ï‚·Request switch Inoperable Warning
Beep
Refer to Request Switch Inoperable
Warning Beep (With the advanced
keyless function) on page 7-51.
ï‚·Key Left-in-trunk Compartment
Warning Beep
Refer to Key Left-in-trunk
Compartment Warning Beep (With the
advanced keyless function) on page 7-
51.
ï‚·Key Left-in-vehicle Warning Beep
Refer to Key Left-in-vehicle Warning
Beep (With the advanced keyless
function) on page 7-51.
NOTE
The advanced keyless entry system
functions can be deactivated to prevent
any possible adverse effect on a user
wearing a pacemaker or other medical
device. If the system is deactivated, you
will be unable to start the engine by
carrying the key. Consult an Authorized
Mazda Dealer for details. If the advanced
keyless entry system has been deactivated,
you can start the engine by following the
procedure indicated when the key battery
goes dead.
Refer to Engine Start Function When Key
Battery is Dead on page 4-8.
Before Driving
Advanced Keyless Entry System
*Some models.3-9
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Operational Range
The system operates only when the driver
is in the vehicle or within operational
range while the key is being carried.
NOTE
When the battery power is low, or in
places where there are high-intensity radio
waves or noise, the operational range may
become narrower or the system may not
operate. For determining battery
replacement, Refer to Keyless Entry
System on page 3-3.
â–¼Locking, Unlocking the Doors
80cm (31in)
80cm (31in) Exterior antenna
Operational range
NOTE
ï‚·The system may not operate if you are
too close to the windows or door
handles.
ï‚·If the key is left in the following areas
and you leave the vehicle, the doors may
be locked depending on the radio wave
conditions even if the key is left in the
vehicle.
ï‚·Around the dashboard
ï‚·In the storage compartments such as
the console box
ï‚·Next to a communication device such
as a mobile phone
â–¼Opening the Trunk Lid
80cm (31in)
Exterior antenna
Operational range
Before Driving
Advanced Keyless Entry System
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Door Locks
WA R N I N G
Always take all children and pets with you
or leave a responsible person with them:
Leaving a child or a pet unattended in a
parked vehicle is dangerous. In hot
weather, temperatures inside a vehicle can
become high enough to cause brain
damage or even death.
Do not leave the key in your vehicle with
children and keep them in a place where
your children will not find or play with
them:
Leaving children in a vehicle with the key is
dangerous. This could result in someone
being badly injured or even killed.
Keep both doors locked when driving:
Unlocked doors in a moving vehicle are
dangerous. Passengers can fall out if a
door is accidentally opened and can more
easily be thrown out in an accident.
Always close both the windows and
convertible top, lock the doors and take the
key with you when leaving your vehicle
unattended:
Leaving your vehicle unlocked is dangerous
as children could lock themselves in a hot
vehicle, which could result in death. Also, a
vehicle left unlocked becomes an easy
target for thieves and intruders.
After closing the doors, always verify that
they are securely closed:
Doors not securely closed are dangerous, if
the vehicle is driven with a door not
securely closed, the door could open
unexpectedly resulting in an accident.
Always confirm the safety around the
vehicle before opening a door:
Suddenly opening a door is dangerous. A
passing vehicle or a pedestrian could be hit
and cause an accident.
CAUTION
 Always confirm the conditions around
the vehicle before opening/closing the
doors and use caution during strong
winds or when parked on an incline. Not
being aware of the conditions around
the vehicle is dangerous because fingers
could get caught in the door or a passing
pedestrian could be hit, resulting in an
unexpected accident or injury.
 If the power window does not go up or
down automatically because the battery
is dead, slowly open/close the power
window while pressing the glass inward.
Otherwise, the power window may
contact the convertible top/roof and the
door cannot be opened/closed resulting
in damage to the window.
NOTE
ï‚·Always stop the engine and lock the
doors. In addition, to prevent theft of
valuables, do not leave them inside the
cabin.
Before Driving
Doors and Locks
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ï‚·If the key is left in the following areas
and you leave the vehicle, the doors may
be locked depending on the radio wave
conditions even if the key is left in the
vehicle.
ï‚·Around the dashboard
ï‚·In the storage compartments such as
the console box
ï‚·Next to a communication device such
as a mobile phone
ï‚·When the ignition is switched to ACC or
ON, the vehicle lock-out prevention
feature prevents you from locking
yourself out of the vehicle.
Both doors will automatically unlock if
they are locked using the power door
locks with any door open.
If both the doors are closed even though
the trunk lid is open, both the doors and
the fuel-filler lid will lock.
The vehicle lock-out prevention feature
does not operate while the ignition is
switched off.
When any door is opened from the
outside while the key is inside the
vehicle, the closed doors are locked.
Both the doors are automatically
unlocked by closing the open door.
(With the advanced keyless function)
The beep sound is heard for about 10
seconds to notify the driver that the key
has been left in the vehicle.
(Without the advanced keyless
function)
The horn sound is heard twice to notify
the driver that the key has been left in
the vehicle.
ï‚·(Door unlock (control) system with
collision detection)
This system automatically unlocks the
doors in the event the vehicle is involved
in an accident to allow passengers to get
out of the vehicle immediately and
prevent being trapped inside. While the
ignition is switched ON and in the event
the vehicle receives an impact strong
enough to inflate the air bags, both the
doors are automatically unlocked after
about 6 seconds have elapsed from the
time of the accident.
The doors may not unlock depending on
how an impact is applied, the force of
the impact, and other conditions of the
accident.
If door-related systems or the battery is
malfunctioning, the doors will not
unlock.
ï‚·When opening a door, the power
windows open a little automatically.
When closing the door, the power
windows close automatically. This is a
function for improving the sealability,
and it does not mean there is a problem.
If the vehicle battery is disconnected for
vehicle maintenance or other reasons,
the power windows will not open or
close automatically. If the power
windows do not open or close, the
automatic open/close mechanism for the
windows must be reset.
Refer to Auto-opening on page 3-34.
Before Driving
Doors and Locks
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