2017 MAZDA MX5 MIATA key

6 –39 Maintenance and Care
Owner MaintenanceThe following conditions indicate that the
battery power is low: 
The KEY indicator light (green) flashes
in the instrument cluster for about 30
seconds after the engine is turned off
(for vehicles with a type A instrument
cluster (page 4-26 ), messages are
displayed in the instrument cluster). 
The system does not operate and
the operation indicator light on the
transmitter does not flash when the
buttons are pressed. 
The system's operational range is
reduced.
Replacing the battery at an Authorized
Mazda Dealer is recommended to prevent
damage to the key. If replacing the battery
by yourself, follow the instruction.
Replacing the key battery
1. Press the knob and pull out the
auxiliary key. Knob 2. Twist a tape-wrapped flathead
screwdriver in the direction of the
arrow and open the cover slightly. C ove r
3. Insert the tape-wrapped flathead
screwdriver into the gap and slide it in
the direction of the arrow. C ove r
Gap
4. Twist the flathead screwdriver in the
direction of the arrow and remove the
cover. C ove r
MX-5_8FR4-EA-16J_Edition1.indb 39 2016/08/11 20:29:46

6 –40 Maintenance and Care
Owner Maintenance 5. Remove the battery cap, then remove
the battery.
6. Insert a new battery with the positive
pole facing up, and then cover the
battery with the battery cap.
7. Close the cover.
8. Reinsert the auxiliary key. CAUTION 
Be careful not to allow the rubber ring
shown in the figure to be scratched or
damaged. 
If the rubber ring detaches, reattach it
before inserting a new battery. Rubber ring
MX-5_8FR4-EA-16J_Edition1.indb 40 2016/08/11 20:29:46

7 –19 If Trouble Arises
Flat Tire
*Some models.WARNING Do not jack up the vehicle higher than is
necessary:
Jacking up the vehicle higher than
is necessary is dangerous as it could
destabilize the vehicle resulting in an
accident.
Do not start the engine or shake the
vehicle while it is jacked up:
Starting the engine or shaking
the vehicle while it is jacked up is
dangerous as it could cause the vehicle
to fall off the jack resulting in an
accident.
Never go under the vehicle while it is
jacked up:
Going under the vehicle while it is
jacked up is dangerous as it could
result in death or serious injury if the
vehicle were to fall off the jack.
8. Remove the lug nuts by turning them
counterclockwise; then remove the
wheel. Locking Lug Nuts *
If your vehicle has Mazda optional
antitheft wheel lug nuts, one on each
wheel will lock the tires and you must
use a special key to unlock them. This
key will attach to the lug wrench.
Register them with the lock manufacturer
by filling out the card provided in the
glove compartment and mailing it in the
accompanying envelope. If you lose this
key, consult an Authorized Mazda Dealer
or use the lock manufacturer's order form,
which is with the registration card.
Accessory wheel locks cannot be used on
steel wheels. This includes situations when
the spare tire is installed. If the spare tire
is installed, one of the original lug nuts
(which should still be in the vehicle) must
be installed in place of the wheel lock. Special ke yAntitheft lug nut
To remove an antitheft lug nut
1. Obtain the special key for the antitheft
lug nut.
2. Place the special key on top of the
antitheft lug nut, and be sure to hold
the key square to it. If you hold the key
at an angle, you may damage both key
and nut. Do not use a power impact
wrench.
3. Place the lug wrench on top of the key
and apply pressure. Turn the wrench
counterclockwise.
MX-5_8FR4-EA-16J_Edition1.indb 19 2016/08/11 20:29:59

7 –20 If Trouble Arises
Flat Tire To install the antitheft lug nut
1. Place the special key on top of the nut,
and be sure to hold the key square to
it. If you hold the key at an angle, you
may damage both key and nut. Do not
use a power impact wrench.
2. Place the lug wrench on top of the
special key, apply pressure, and turn it
clockwise. Nut tightening torque
N·m (kgf·m, ft·lbf) 108—147
(12—14, 80—108)
Mounting the Tire1. Remove dirt and grime from the
mounting surfaces of the wheel and
hub, including the hub bolts, with a
cloth.
WARNING Make sure the mounting surfaces of
the wheel, hub and lug nuts are clean
before changing or replacing tires:
When changing or replacing a tire,
not removing dirt and grime from the
mounting surfaces of the wheel, hub
and hub bolts is dangerous. The lug
nuts could loosen while driving and
cause the tire to come off, resulting in
an accident.
2. Mount the tire.
3. Install the lug nuts with the beveled
edge inward; tighten them by hand.

WARNING Do not apply oil or grease to lug nuts
and bolts and do not tighten the
lug nuts beyond the recommended
tightening torque:
Applying oil or grease to lug nuts and
bolts is dangerous. The lug nuts could
loosen while driving and cause the tire
to come off, resulting in an accident.
In addition, lug nuts and bolts could
be damaged if tightened more than
necessary.
MX-5_8FR4-EA-16J_Edition1.indb 20 2016/08/11 20:29:59

7 –38 If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.Signal Warning
(Red)
KEY Warning
Indication *
“Keyless System malfunction” is displayed
This message is displayed if the advanced keyless entry & push button start system has a
problem.
Contact an Authorized Mazda Dealer.
CAUTION If the message is indicated, or the push button start indicator light (amber) flashes, the
engine may not start. If the engine cannot be started, try starting it using the emergency
operation for starting the engine, and have the vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4-9 .
(Amber)
KEY Warning
Indication *
“Ignition is on” is displayed
This message is displayed when the driver's door is opened without switching the ignition
off.
“Key not detected” is displayed
This message is displayed when any of the following operations is performed with the key
out of the operational range or placed in areas inside the cabi n where it is difficult for the
key to be detected. 
The push button start is pressed with the ignition switched off 
The ignition is switched on 
All doors are closed without switching the ignition off
(Red)
(Illuminate)
KEY Warning
Light *
If any malfunction occurs in the keyless entry system, it illuminates continuously.
CAUTION If the key warning indicator light illuminates or the push button start indicator light
(amber) flashes, the engine may not start. If the engine cannot be started, try starting it
using the emergency operation for starting the engine, and have the vehicle inspected
at an Authorized Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4-9 .
MX-5_8FR4-EA-16J_Edition1.indb 38 2016/08/11 20:30:04

7 –44 If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.KEY Indication (White)/KEY Warning Light (Red) *
Take the appropriate action and verify that the warning light turns off. Signal Cause Action to be taken
(White)
KEY Indication *
The advanced key battery is dead. Replace the key battery (page 6-38 ).
(Red)
(Flashing)
KEY Warning Light *
(Red)
(Flashing)
KEY Warning Light *
The advanced key is not within the
operation range.
Bring the advanced key into the operation
range (page 3-7 ).The advanced key is placed in areas inside
the cabin where it is difficult for the key to
be detected.
A key from another manufacturer similar to
the advanced key is in the operation range. Take the key from another manufacturer
similar to the advanced key out of the
operation range.
Without the ignition switched off, the
advanced key is taken out of the cabin, and
then all the doors are closed. Bring the advanced key back into the
cabin.
MX-5_8FR4-EA-16J_Edition1.indb 44 2016/08/11 20:30:05

7 –49 If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models. Seat Belt Warning BeepExcept Mexico
If the driver's seat belt is not fastened
when the ignition is switched ON, a beep
sound will be heard for about 6 seconds.
If the driver or the passenger's seat belt is
not fastened and the vehicle is driven at a
speed faster than about 20 km/h (12 mph),
a beep sound will be heard again for a
specified period of time.
Until a seat belt is fastened or a given
period of time has elapsed, the beep sound
will not stop even if the vehicle speed falls
below 20 km/h (12 mph).
NOTE 
To allow the passenger occupant
classification sensor to function
properly, do not place and sit on
an additional seat cushion on the
passenger's seat. The sensor may not
function properly because the additional
seat cushion could cause sensor
interference. 
If a small child is seated on the
passenger's seat, the warning beep may
not operate.
Mexico
If the vehicle speed exceeds about 20 km/h
(12 mph) with the driver or passenger's
seat belt unfastened, a warning beep
sounds continuously. If the seat belt
remains unfastened, the beep sound stops
once and then continues for about 90
seconds. The beep stops after the driver or
passenger's seat belt is fastened.
Until a seat belt is fastened or a given
period of time has elapsed, the beep sound
will not stop even if the vehicle speed falls
below 20 km/h (12 mph). NOTE 
Placing heavy items on the passenger's
seat may cause the passenger's seat belt
warning function to operate depending
on the weight of the item. 
To allow the passenger seat weight
sensor to function properly, do not place
and sit on an additional seat cushion
on the passenger's seat. The sensor
may not function properly because the
additional seat cushion could cause
sensor interference. 
If a small child is seated on the
passenger's seat, the warning beep may
not operate.
Retractable Fastback Warning
Beep *
When operating the retractable fastback
switch, the warning beep is activated when
the retractable fastback operation begins
and when it is completed.
If there is a problem with the retractable
fastback, the warning beep is activated
continuously while operating the switch. If
the warning beep is activated continuously
while operating the switch, have the
vehicle inspected at an Authorized Mazda
Dealer .
Ignition Not Switched Off (STOP)
Warning Bee p
If the driver's door is opened with the
ignition switched to ACC, a beep will
be heard continuously in the cabin to
notify the driver that the ignition has not
been switched OFF (STOP). Under this
condition, the keyless entry system will
not operate, the vehicle cannot be locked,
and the battery voltage will be depleted.
MX-5_8FR4-EA-16J_Edition1.indb 49 2016/08/11 20:30:06

7 –50 If Trouble Arises
Warning/Indicator Lights and Warning Sounds Key Removed from Vehicle
Warning BeepVehicles with advanced keyless function
If the key is taken out of the vehicle while
the ignition is not switched OFF and
all the doors are closed, the beep which
sounds outside of the vehicle will be heard
6 times, the beep which sounds inside
the vehicle will be heard 6 times, and the
KEY warning light (red) in the instrument
cluster flashes continuously to notify
the driver that the ignition has not been
switched OFF.
Vehicles without advanced keyless
function
If the key is taken out of the vehicle while
the ignition is not switched OFF and all
the doors are closed, a beep will be heard
in the cabin 6 times and the KEY warning
light (red) in the instrument cluster turns
on continuously to notify the driver that
the ignition has not been switched OFF.
NOTE
Because the key utilizes low-intensity
radio waves, the Key Removed From
Vehicle Warning may activate if the key is
carried together with a metal object or it
is placed in a poor signal reception area.
Request Switch Inoperable
Warning Beep (With the advanced
keyless function)
If the request switch is pressed with the
door open or ajar, or the ignition is not
switched OFF with a key being carried,
a beep will be heard outside for about 2
seconds to notify the driver that the door
or trunk lid cannot be locked. Key Left-in-trunk Warning Beep
(With the advanced keyless
function) If the key is left in the trunk with all the
doors locked and the trunk lid closed, a
beep will be heard outside for about 10
seconds to notify the driver that the key is
in the trunk. In this case, take out the key
by pressing the electric trunk lid opener
and opening the trunk lid. The key taken
out of the trunk may not operate because
its functions have been temporarily
stopped. To restore the key's functions,
perform the applicable procedure (page
3-7 ).
Key Left-in-vehicle Warning Beep
(With the advanced keyless
function) If all the doors and trunk are locked using
another key while the key is left in the
cabin, the beep which sounds outside of
the vehicle will be heard for about 10
seconds to notify the driver that the key
is in the cabin. In this case, take out the
key by opening the door. A key taken
out of the vehicle using this method may
not operate because its functions have
been temporarily stopped. To restore the
key's functions, perform the applicable
procedure (page 3-7 ).
Power Steering Warning Buzzer
If the power steering system has
a malfunction, the power steering
malfunction light turns on or flashes and
the buzzer operates at the same time.
Refer to Warning Indication/Warning
Lights on page 4-26 .
MX-5_8FR4-EA-16J_Edition1.indb 50 2016/08/11 20:30:07