MAZDA MODEL MX-5 MIATA 2021 Owners Manual

NOTE
The remote release button cannot be
disabled by locking the doors using the
door-lock switch/door-lock knob.
Refer to Locking, Unlocking with
Door-Lock Switch on page 3-17.
Refer to Locking, Unlocking with
Door-Lock Knob on page 3-18.
Using the electric trunk lid opener
(With the advanced keyless function)
A trunk lid can also be opened while the
key is being carried.
Press the electric trunk lid opener and
raise the trunk lid when the latch releases.

Electric trunk lid
opener
NOTE
When opening the trunk lid with the
doors locked, it may require a few
seconds for the trunk lid latch to release
after the electric trunk lid opener is
pressed.
The trunk lid can be closed when the
doors are locked with the key left in the
vehicle. However, to prevent locking the
key in the vehicle, the trunk lid can be
opened by pressing the electric trunk lid
opener. If the trunk lid cannot be opened
despite doing this procedure, first push
the trunk lid completely closed, then
press the electric trunk lid opener to
fully open the trunk lid.
If the vehicle battery is dead or there is
a malfunction in the electrical system
and the trunk lid cannot be unlocked,
the trunk lid can be opened by
performing the emergency procedure.
Refer to When Trunk Lid Cannot be
Opened on page 7-52.
Closing the trunk lid
Use both hands to push the trunk lid down
until the lock snaps s hut. Do not slam it.
Pull up on the trunk lid to make sure it is
secure.
Before Driving
Doors and Locks
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Inside Trunk ReleaseLever
*
Your vehicle is equipped with an inside
trunk release lever that provides a means
of escape for children and adults in the
event they become locked inside the trunk.

No matter how careful adults might be
with keys and locking their cars, parents
should be aware that children may be
tempted to play around vehicles and use
the trunk as a hiding place.

Adults are advised to familiarize
themselves with the operation and location
of the inside trunk release lever so that all
children can be told about it in an
appropriate way, keeping in mind that
most vehicles do not have such levers.
WARNING
Close the trunk lid, do not allow children to
play inside the trunk:
Leaving the trunk lid open or leaving
children in the vehicle with the keys is
dangerous. Children could open the trunk
lid and climb inside resulting in possible
injury or death from heat exposure.
Always keep the car from being a tempting
place to play by latching the doors and the
trunk, and keeping the keys where children
can not play with them:
Leaving children or animals unattended in
a parked vehicle is dangerous. Babies left
sleeping and children who lock themselves
in cars or trunks can die very quickly from
heat prostration. Do not leave your
children or pets alone in a car at any time.
Do not leave the car, the trunk unlocked.
▼ Opening the Trunk Lid from the
Inside
Slide the inside trunk release lever in the
direction of the arrow. The lever is made
of material that will glow for hours in the
darkness of the trunk following a brief
exposure to ambient light.

The inside trunk release lever is located on
the inside of the trunk lid.
Before Driving
Doors and Locks
*Some models.3-21
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Fuel and Engine Exhaust Precautions
▼Fuel Requirements
Vehicles with catalytic converters or oxygen sensors must use O
NLY UNLEADED FUEL,
which will reduce exhaust emissions and keep spark plug fouling to a minimum.

To achieve maximum engine performance, use the specified fuel.
Fuel Octane Rating*1 (Anti-knock index)
Premium unleaded fuel 91 [(R+M)/2 method] or above (96 RON or ab ove)
*1 U.S. federal law requires that octane ratings be posted on gas station pumps.
Regular unleaded fuel with an octane rating from 87 to 90 (91 t o 95 RON) can be used, but
this will reduce perform ance slightly, such as reduced engine o utput, and engine knocking.
Fuel with a rating lower than 87 octane (91 RON) will negatively affect the emission control
system performance and could also cause engine knocking and ser ious engine damage.
CAUTION
USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic co nverter and oxygen sensors and will lead to
deterioration of the emission control system and or failures.
 This vehicle can only use oxygenated fuels containing no more than 10 % ethanol by
volume. Damage to the vehicle may occur when ethanol exceeds this recommendation, or
if the gasoline contains any methanol. Stop using gasohol of any kind if your vehicle engine
is performing poorly.
 Never add fuel system additives other than a Mazda genuine product, otherwise the
emission control system could be damaged. Consult an Authorized Mazda Dealer for
details.
Gasoline blended with oxygenates such as alcohol or ether compo unds are generally
referred to as oxygenated fuels. The common gasoline blend that can be used with your
vehicle is ethanol blended at no more than 10 %. Gasoline conta ining alcohol, such as
ethanol or methanol, may be marketed under the name "Gasohol".

Vehicle damage and drivability pr oblems resulting from the use of the following may not be
covered by the warranty.
Gasohol containing more than 10 % ethanol.
Gasoline or gasohol containing methanol.
Leaded fuel or leaded gasohol.
Before Driving
Fuel and Emission
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▼Emission Control System
This vehicle is equipp
ed with an emission co ntrol system (the catalytic converter is part of
this system) that enables the ve hicle to comply with existing exhaust emissions
requirements.
WARNING
Never park over or near anything flammable:
Parking over or near anything flammable, such as dry grass, is dangerous. Even with the
engine turned off, the exhaust system remains very hot after normal use and could ignite
anything flammable. A resulting fire could cause serious injury or death.
CAUTION
Ignoring the following precautions could cause lead to accumulate on the catalyst inside the
converter or cause the converter to get very hot. Either condition will damage the converter
and cause poor performance.
 USE ONLY UNLEADED FUEL.
 Do not drive your Mazda with any sign of engine malfunction.
 Do not coast with the ignition switched off.
 Do not descend steep grades in ge ar with the ignition switched
off.
 Do not operate the engine at high idle for more than 2 minutes.
 Do not tamper with the emission control system. All inspections and adjustments must be
made by a qualified technician.
 Do not push-start or tow-start this vehicle.
NOTE
Under U.S. federal law, any modification to the original-equipment emission control
system before the first sale and registration of a vehicle is subject to penalties. In some
states, such modification made on a used vehicle is also subject to penalties.
While the engine is off, the sound of a valve opening and closing can be heard at the rear
of the vehicle, however this does not indicate an abnormality. The vehicle has a
self-checking device and it operates while the engine is off.
Before Driving
Fuel and Emission
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▼Engine Exhaust (Carbon monoxide)
WA R N I N G
Do not drive your vehicle if you smell exhaust gas inside the vehicle:
Engine exhaust gas is dangerous. This gas contai
ns carbon monoxide (CO), which is colorless,
odorless, and poisonous. When inhaled, it can cause loss of consciousness and death. If you
smell exhaust gas inside the vehicle, keep a ll windows fully open and contact an Authorized
Mazda Dealer immediately.
Do not run the engine when inside an enclosed area:
Running the engine inside an enclosed area, such as a garage, is dangerous. Exhaust gas,
which contains poisonous carbon monoxide , could easily enter the cabin. Loss of
consciousness or even death could occur.
Open the windows or adjust the heating or cooling system to draw fresh air when idling the
engine:
Exhaust gas is dangerous. When the vehicle is stopped with the windows closed and the
engine running for a long time even in an op en area, exhaust gas, which contains poisonous
carbon monoxide, could enter the cabin. Loss of consciousness or even death could occur.
Clear snow from underneath and around your vehicle, particularly the tail pipe, before
starting the engine:
Running the engine when a vehi cle is stopped in deep snow is dangerous. The exhaust pipe
could be blocked by the snow, allowing exhaust gas to enter the cabin. Because exhaust gas
contains poisonous carbon monoxide, it could cause loss of consciousness or even death to
occupants in the cabin.
Before Driving
Fuel and Emission
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Fuel-Filler Lid and Cap
WARNING
When removing the fuel-filler cap, loosen
the cap slightly and wait for any hissing to
stop, then remove it:
Fuel spray is dangerous. Fuel can burn skin
and eyes and cause illness if ingested. Fuel
spray is released when there is pressure in
the fuel tank and the fuel-filler cap is
removed too quickly.
Before refueling, stop the engine, and
always keep sparks and flames away from
the filler neck:
Fuel vapor is dangerous. It could be ignited
by sparks or flames causing serious burns
and injuries.
Additionally, use of the incorrect fuel-filler
cap or not using a fuel-filler cap may result
in a fuel leak, which could result in serious
burns or death in an accident.
Do not continue refueling after the fuel
pump nozzle shuts off automatically:
Continuing to add fuel after the fuel pump
nozzle has shut off automatically is
dangerous because overfilling the fuel tank
may cause fuel overflow or leakage. Fuel
overflow and leakage could damage the
vehicle and if the fuel ignites it could cause
a fire and explosion resulting in serious
injury or death.
CAUTION
Always use only a genuine Mazda fuel-filler
cap or an approved equivalent, available
at an Authorized Mazda Dealer. The wrong
cap can result in a serious malfunction of
the fuel and emission control systems.
(U.S.A. and Canada)
It may also cause the check engine light in
the instrument cluster to illuminate.
▼ Refueling
Before refueling, close both the doors,
windows, and the trunk lid, and switch the
ignition OFF.
1. To open the fuel-filler lid, pressed the
edge of the lid with the doors
unlocked.

NOTE
The fuel-filler lid operates in
conjunction with the door locking/
unlocking mechanism.
2. To remove the fuel-filler cap, turn it
counterclockwise.
Before Driving
Fuel and Emission
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3. Attach the removed cap to the innerside of the fuel-filler lid.

Fuel-filler lid
Fuel-filler cap
4. Insert the refueling nozzle all the wayand begin refueling. Pull out the
refueling nozzle a fter the refueling
stops automatically.
5. To close the fuel-filler cap, turn it clockwise until a click is heard.
6. To close, press the fuel-filler lid until a
click sound is heard.

7. Make sure to lock both the doors whenleaving the vehicle.
Refer to Door Locks on page 3-12.
NOTE
Lock the doors after closing the
fuel-filler lid.
If the fuel-filler lid is closed after
locking the doors, the fuel-filler lid
cannot be locked.
CAUTION
(U.S.A. and Canada)
If the check fuel cap warning light
illuminates, the fuel-filler cap may not be
properly installed. If the warning light
illuminates, park your vehicle safely off the
right-of-way, remove the fuel-filler cap and
reinstall it correctly. After the cap has been
correctly installed, the fuel cap warning
light may continue to illuminate until a
number of driving cycles have been
completed. A drive cycle consists of starting
the engine (after four or more hours with
the engine off) and driving the vehicle on
city and highway roads.
Continuing to drive with the check fuel cap
warning light illuminated could cause the
check engine light to illuminate as well.
Before Driving
Fuel and Emission
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Mirrors
Before driving, adjust the inside and
outside mirrors.
▼Outside Mirrors
WARNING
Be sure to look over your shoulder before
changing lanes:
Changing lanes without taking into
account the actual distance of the vehicle
in the convex mirror is dangerous. You
could have a serious accident. What you
see in the convex mirror is closer than it
appears.
Mirror type
Flat type (driver's side)
Flat surface mirror.
Convex type (passenger side)
The mirror has single curvature on its
surface.
Power mirror adjustment
The ignition must be switched to ACC or
ON position.

To adjust:
1. Rotate the mirror
switch to the left
or
right
to choose the left or right side
mirror.
2. Press the mirror switch in the
appropriate direction.
Center position
Mirror switch
After adjusting the m irror, lock the control
by rotating the switch in the center
position.
Folding mirror
WA R N I N G
Always return the outside mirrors to the
driving position before you start driving:
Driving with the outside mirrors folded in is
dangerous. Your rear view will be
restricted, and you could have an accident.
Manually fold the outside mirror rearward
until it is flush w ith the vehicle.
Before Driving
Mirrors
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Driver's side auto-dimming door
mirror*
The movement of the auto-dimming door
mirror is interlocked with the
auto-dimming rearview mirror in the
interior to automatically reduce glare from
rear on-coming vehicles.
Refer to Rearview Mirror on page 3-28.
NOTE
The passenger-side door mirror does not
have the auto-dimming feature.
▼Rearview Mirror
WA R N I N G
Do not stack cargo or objects higher than
the seatbacks:
Cargo stacked higher than the seatbacks is
dangerous. It can block your view in the
rearview mirror, which might cause you to
hit another car when changing lanes.
Rearview mirror adjustment
Before driving, adjust
the rearview mirror
to center on the scene through the rear
window.

NOTE
For the manual day/night mirror, perform
the adjustment with the day/night lever in
the day position.
Reducing glare from headlights
Manual day/night mirror
Push the day/night lever forward for day
driving. Pull it back to reduce glare of
headlights from vehi cles at the rear.

Day/Night lever
Day
Night
Auto-dimming mirror
The auto-dim ming mirror automatically
reduces the glare of headlights from
vehicles at the rear when the ignition is
switched ON.

Press the OFF button (
) to cancel the
auto-dimming function. The indicator light
will turn off.
To reactivate the auto-dimming function,
press the ON button (
). The indicator
light will illuminate.
Indicator lightOFF button
ON button

Before Driving
Mirrors
3-28*Some models.
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NOTE
Do not use glass cleaner or suspend
objects on or around the light sensor.
Otherwise, light sensor sensitivity will
be affected and may not operate
normally.

Light sensor
For information regarding the 3 buttons
(
,,) on the auto-dimming
mirror.
Refer to HomeLink Wireless Control
System on page 4-58.
The auto-dimming function is canceled
when the ignition is switched ON and
the shift/selector lever is in reverse (R).
Before Driving
Mirrors
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