2020 MAZDA MODEL MX-5 warning

Supplemental Restraint System Components
Driver/Passenger inflators and air bags
Crash sensors, and diagnostic module (SAS unit)
Seat belt pretensioners (page 2-18)
Front air bag sensors
Side crash sensors
Air bag/seat belt pretensioner system warning light (page 4-27)
Side inflators and air bags
Passenger air bag deactivation indicator light (page 2-49)
Passenger occupant classification sensor (page 2-49)
Passenger occupant classification module
Essential Safety Equipment
SRS Air Bags
2-42
MX-5_8JA4-EA-19K_Edition2 _old 2019-8-29 16:18:06

▼Warning Light/Beep
A system malfunction or operation conditions are indicated by a warning.
Refer to Warning/Indicator Lights on page 4-27.
Refer to Warning Sound is Activated on page 7-48.
Essential Safety Equipment
SRS Air Bags
2-45
MX-5_8JA4-EA-19K_Edition2_old 2019-8-29 16:18:06

Passenger Occupant Classification System
First, please read "Supplemental Restraint System (SRS) Precautions" (page 2-36) carefully.
▼Passenger Occupant Classification Sensor
Your vehicle is equipped with a passenger occupant classification sensor as a part of the
supplemental restraint system. This sensor is equipped in the p assenger's seat cushion. This
sensor measures the electrostatic capacity of the passenger's s eat. The SAS unit is designed
to prevent the passenger front and side air bags and seat belt pretensioner system from
deploying if the passenger air bag deactivation indicator light turns on.
To reduce the chance of injuries caused by deployment of the passenger air bag, the system
deactivates the passenger front and side air bags and also the seat belt pretensioner system
when the passenger air bag deactivation indicator light turns o n. Refer to the following table
for the passenger air bag deactivation indicator light illumina tion conditions.

This system shuts off the passenger front and side air bags and seat belt pretensioner system,
so make sure the passenger air bag deactivation indicator light turns on according to the
following table.

The air bag/seat belt pretension er system warning light flashes and the passenger air bag
deactivation indicator light illu minates if the sensors have a possible malfunction. If this
happens, the passenger front and side air bags and seat belt pr etensioner system will not
deploy.
Passenger air bag deactivation indicator light
This indicator light turns on to remind you that the passenger front and side air bags and seat
belt pretensioner will not deploy during a collision.
Ty p e A
If the passenger occupant classification sensor is normal, the indicator light turns on when
the ignition is switched ON. The light turns off after a few se conds. Then, the indicator light
turns on or is off under the following conditions:
Essential Safety Equipment
SRS Air Bags
2-49
MX-5_8JA4-EA-19K_Edition2 _old 2019-8-29 16:18:06

WARNING
Do not allow an occupant in the passenger's seat to sit with a posture which makes it difficult
for the passenger occupant classification sensor to detect the occupant correctly:
Sitting in the passenger's seat with a posture which makes it difficult for the passenger
occupant classification sensor to detect the occupant correctly is dangerous. If the passenger
occupant classification sensor cannot detect the occupant sitting on the passenger's seat
correctly, the passenger front and side air bags and pretensioner system may not operate
(non-deploy) or they may operate (deploy) accidentally. The passenger will not have the
supplementary protection of the air bags or the accidental operation (deployment) of the air
bags could result in serious injury or death.
Under the following conditions, the passenger occupant classification sensor cannot detect a
passenger sitting on the passenger's seat co rrectly and the deployment/non-deployment of
the air bags cannot be controlled as indicated in the passenger air bag deactivation indicator
light on/off condition chart. For example:
 A passenger is seated as shown in the following figure:
Essential Safety Equipment
SRS Air Bags
2-52
MX-5_8JA4-EA-19K_Edition2 _old 2019-8-29 16:18:06

Constant Monitoring
The following components of the air bag systems are monitored by a diagnostic system:

Front air bag sensors
Crash sensors, and diagnostic module (SAS unit)
Side crash sensors
Air bag modules
Seat belt pretensioners
Air bag/Seat belt pretensioner system warning light
Related wiring
Passenger occupant classification sensor
Passenger occupant classification module
Passenger air bag deactivation indicator light

The diagnostic module continuously monitors the system's readin ess. This begins when the
ignition is switched ON and contin ues while the vehicle is being driven.
Essential Safety Equipment
SRS Air Bags
2-55
MX-5_8JA4-EA-19K_Edition2_old 2019-8-29 16:18:06

Keys
WARNING
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. Children
may find these keys to be an interesting toy
to play with and could cause the power
windows or other controls to operate, or
even make the vehicle move.
CAUTION
Because the key (transmitter) uses
low-intensity radio waves, it may not
function correctly under the following
conditions:
 The key is carried with communication
devices such as cellular phones.
 The key contacts or is covered by a
metal object.
 The key is near electronic devices such
as personal computers.
 Non-Mazda genuine electronic
equipment is installed in the vehicle.
 There is equipment which discharges
radio waves near the vehicle.
 The key (transmitter) may consume
battery power excessively if it receives
high-intensity radio waves. Do not place
the key near electronic devices such as
televisions or personal computers.
To avoid damage to the key
(transmitter), DO NOT:
 Drop the key.
 Get the key wet.
 Disassemble the key.
 Expose the key to high temperatures
on places such as the dashboard or
hood, under direct sunlight.
 Expose the key to any kind of magnetic
field.
 Place heavy objects on the key.
 Put the key in an ultrasonic cleaner.
 Put any magnetized objects close to
the key.
NOTE
The driver must carry the key to ensure the
system functions properly.
Ty p e A
Auxiliary key
Transmitter
Removing the auxiliary key
Pull out the auxiliary key from the
transmitter while pressing the knob.
Knob
Before Driving
Keys
3-2
MX-5_8JA4-EA-19K_Edition2 _old 2019-8-29 16:18:06

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 s ignal 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.
KEY Warning Light (Red)
Refer to Warning/Indicator Lights on
page 4-27.
Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off
(STOP) Warning Beep on page 7-49.
Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-49.
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 key inoperative.
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
The keyless entry system operation may
vary due to local conditions.
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.
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
6-34).
Before Driving
Keys
3-4
MX-5_8JA4-EA-19K_Edition2 _old 2019-8-29 16:18:06

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 4-27),
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.
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.
▼Transmitter
Ty p e A
Operation
buttons
Operation indicator light
Ty p e B
Operation
b
uttons
Operation indicator light
NOTE
The headlights turn on/off by operating
the transmitter. Refer to Leaving Home
Light on page 4-49.
Before Driving
Keys
3-5
MX-5_8JA4-EA-19K_Edition2
_old 2019-8-29 16:18:06