2020 MAZDA MODEL 3 HATCHBACK warning light

▼Front Passenger Seat Weight
Sensors
Your vehicle is equipped with a front
passenger seat weight sensors as a part of
the supplemental restraint system. These
sensors are located under both of the front
passenger seat rails. These sensors
determine the total
seated weight on the
front passenger seat and monitor the seat
belt buckle for the front passenger seat.
The SAS unit is designed to prevent the
front passenger front and side air bags and
knee air bags, and seat belt pretensioner
system from deploying if the front
passenger air bag deactivation indicator
light illuminates.
To reduce the chance of injuries caused by
deployment of the fr ont passenger air bag,
the system deactivates the front passenger
front and side air bags and knee air bags,
and also the seat belt pretensioner system
when the front passenger air bag
deactivation indicator light illuminates.
Refer to the following table for the front
passenger air bag deactivation indicator
light illumination conditions.

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

The air bag/front seat belt pretensioner
system warning light flashes and the front
passenger air bag deactivation indicator
light illuminates if the sensors have a
possible malfunction. If this happens, the
front passenger front and side air bags and
knee air bags, and seat belt pretensioner
system will not deploy.
Front passenger air bag deactivation
indicator light
This indicator light illuminates to remind
you that the front passenger front and side
air bags and knee air bags, and seat belt
pretensioners will not deploy during a
collision.
If the front passenger weight sensors are
normal, the indicator light illuminates
when the ignition is switched ON. The
light turns off after a few seconds. Then,
the indicator light illuminates or is off
under the following conditions:
Essential Safety Equipment
SRS Air Bags
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A rear passenger steps on the front
passenger seat rails with their feet.
 Luggage or other items are placed on the
seatback or hung on the head restraint.
 Heavy items are placed in the seatback
map pocket.
 The seat is washed.
 Liquids are spilled on the seat.
 The front passenger seat is moved
backward, pushing into luggage or other
items placed behind it.
 The front passenger seatback contacts
the rear seat.
 Luggage or other items are placed
between the front passenger seat and
driver seat.
 Any accessories which might increase the
total seated weight on the front
passenger seat are attached to the front
passenger seat.
CAUTION
To assure proper deployment of the front
air bag and to prevent damage to the
sensors in the front seat bottoms:
 Do not place sharp objects on the front
seat bottoms or leave heavy luggage
on them.
 Do not spill any liquids on the front
seats or under the front seats.
 To allow the sensors to function properly,
always perform the following:
 Adjust the front seats as far back as
possible and always sit upright against
the seatbacks with seat belts worn
properly.
If you place your child on the front
passenger seat, secure the
child-restraint system properly and
slide the front passenger seat as far
back as possible (page 2-47).
NOTE
The system requires about 10 seconds to
alternate between turning the front
passenger front and side air bags and
knee air bags, and seat belt pretensioner
system on or off.
The front passenger air bag deactivation
indicator light may illuminate
repeatedly if luggage or other items are
put on the front passenger seat, or if the
temperature of the vehicle's interior
changes suddenly.
The front passenger air bag deactivation
indicator light may illuminate for 10
seconds if the total seated weight on the
front passenger seat changes.
The air bag/front seat belt pretensioner
system warning light might illuminate if
the front passenger seat receives a
severe impact.
If the front passenger air bag
deactivation indicator light does not
illuminate after installing a
child-restraint system on the front
passenger seat, first, re-install your
child-restraint system according to the
procedure in this owner's manual. Then,
if the front passenger air bag
deactivation indicator light still does not
illuminate, install the child-restraint
system on the rear seat and consult an
Authorized Mazda Dealer as soon as
possible.
Essential Safety Equipment
SRS Air Bags
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If the front passenger air bag
deactivation indicator light illuminates
when an adult is seated in the front
passenger seat, have the passenger
re-adjust their posture by sitting with
their feet on the floor, and then
re-fastening the seat belt. If the front
passenger air bag deactivation indicator
light still illuminates, move the
passenger to the rear seat. If sitting in
the rear seat is not possible, slide the
front passenger seat as far back as
possible. Consult an Authorized Mazda
Dealer as soon as possible.
▼Driver and Front Passenger Buckle
Switches
The buckle switches on the front seat belts
detect whether or not the front seat belts
are securely fastened and further control
the deployment of the air bags.
Constant Monitoring
▼ Constant Monitoring
The following componen
ts 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
Front seat belt pretensioners
Air bag/Front seat belt pretensioner
system warning indi cation/warning light
Related wiring
(With Driver and Front Passenger
Occupant Classifi cation System)
Driver seat slide position sensor
Front passenger occupant classification
sensor
Front passenger occupant classification
module
Front passenger air bag deactivation
indicator light
Front passenger seat belt buckle switch

The diagnostic module continuously
monitors the system's readiness. This
begins when the igni tion is switched ON
and continues while the vehicle is being
driven.
Essential Safety Equipment
SRS Air Bags
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Keyless Entry System
▼Keyless Entry System
This system uses the key buttons to
remotely lock and unlock the doors,
liftgate, and fuel-fill
er 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 fo llowing warning lights
or beeps.
Check the displaye d message for more
information and, if necessary, have the
vehicle inspected at an Authorized Mazda
Dealer, according to the indication.
KEY Warning Indicat ion/Warning Light
(Red)
Refer to KEY Warning Indication/
Warning Light (Red) on page 7-33.
Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off
(STOP) Warning Beep on page 7-42.
Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-42.
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 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
6-28).
Battery life is about 1 year. Replace the
battery with a new one if the messages
are displayed in the instrument cluster.
Replacing the battery about once a year
is recommended because the KEY
warning indication may not display
depending on the rate of battery
depletion.
Before Driving
Keys
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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.
▼Tr a n s m i t t e r
1. Operation indicator light
2. Lock button (
)
3. Unlock button (
)
4. Trunk button (4–door) (
)
5. Panic button (
)
NOTE
The headlights turn on/off by operating
the transmitter. Refer to Leaving Home
Light on page 4-48.
(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
3-42.
(With the advanced keyless function)
A beep sound can be heard for
confirmation when the doors, fuel-filler
lid and liftgate 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 the Settings section in the
Mazda Connect Owner's Manual.
The operation indicator light flashes when
the buttons are pressed.
Lock button
To lock the doors, fuel-filler lid and
liftgate, 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 all the doors, fuel-filler lid
and liftgate have been locked, press the
lock button again within 5 seconds. If they
are closed and locked, the horn will sound.
NOTE
If the lock button is pressed with any
door or liftgate/trunk lid open, any
closed door can be locked. Close any
open door and liftgate/trunk lid to lock.
Confirm that all the doors, fuel-filler lid
and liftgate are locked visually or
audibly by use of the double click.
Make sure all the doors, fuel-filler lid
and liftgate are locked after pressing the
button.
Before Driving
Keys
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(With theft-deterrent system)
If the lock button is pressed with all the
doors and liftgate closed, the hazard
warning lights will flash and the
theft-deterrent system is armed.
Unlock button
To unlock the driver's door and fuel-filler
lid, press the unlock button and the hazard
warning lights will flash twice.
(With the advanced keyless function)
A beep sound will be heard twice.

To unlock the other doors and liftgate,
press the unlock button again within 5
seconds and two more beep sounds will be
heard.
NOTE
The system can be set to unlock all the
doors, fuel-filler lid and liftgate when
pressing the unlock button once.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
(Auto re-lock function)
After unlocking with the key, all the
doors, fuel-filler lid and liftgate 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 fo r the doors to lock
automatically can be changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
A door or the liftgate/trunk lid is
opened.
The ignition is switched to any
position other than off.
(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.
Trunk button (4–door)
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 liftgate/trunk lid is open or
closed.
Before Driving
Keys
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(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:
The horn sounds intermittently.
The hazard warning lights flash.
(Turning off the alarm)
The alarm stops by pressing any button on
the key.
Power saving function
By turning on the transmitter power saving
function, the advan ced keyless entry
*1 and
push button start system functions turn off
and the battery power consumption of the
transmitter is restricted.
The remote control function is operational
by operating the transmitter switch even
while the power saving function is turned
on. However, the operation indicator light
of the transmitter does not turn on/flash.
Turning on the power saving function
After you have turned on the power saving
function according to the following
procedure, the hazard warning lights and
sound operate
*1 one time.
1. Press the lock button on the transmitter 4 times within 3 seconds to turn on the
operation indicator light.
2. Press the lock button continuously for 1.5 seconds or longer while the
operation indicator light turns on (for 5
seconds).
3. Press any of the buttons on the
transmitter to make sure that the
operation indicator light does not turn
on/flash.
Turning off the power saving function
After you have turned off the power
saving function according to the following
procedure, the hazard warning lights and
sound operate
*1 one time.
1. Press any of the buttons on the
transmitter to make sure that the
operation indicator light does not turn
on/flash.
2. Press the lock button on the transmitter 4 times within 3 seconds to turn on the
operation indicator light.
3. Press the lock button continuously for 1.5 seconds or longer while the
operation indicator light turns on (for 5
seconds).
*1 With the advanced keyless function
▼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
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.
The luggage compartment/trunk is out of
the assured operational range, however,
if the key (transmitter) is operable the
engine will start.
Before Driving
Keys
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You touch the sensing area of the
touch sensor while wearing gloves.
Foreign matter such as snow or dirt is
stuck on the sensing area of the touch
sensor.
You pull the door handle just after
touching the sensing area of the touch
sensor.
The system may operate if the outer side
door handle of a front door is splashed
with water by a car wash or rain while
the transmitter is in the operation range.
If the system does not operate even
though you touch the sensing area of the
touch sensor correctly, release the touch
sensor once, and then touch the sensing
area of the touch sensor again after
waiting about 3 seconds.
Locking
When locking, touch the sensing area of
the door lock touch sensor with all of the
following conditions met.
The ignition is switched OFF.
All the doors are closed.
You are carrying the transmitter.
The following locations are locked by
touching the sensing area of the door lock
touch sensor.
All doors
Fuel-filler lid
Liftgate
When locking, the hazard warning lights
and sound operate one time.
Unlocking
When unlocking, touch the sensing area of
the door release touch sensor with all of
the following conditions met.
The ignition is switched OFF.
The driver’s door is locked.
Three seconds or longer have passed
since the doors were locked.
You are carrying the transmitter.
(Unlocking from the driver's door)
The following locations are unlocked by
touching the sensing area of the door
release touch sensor of the driver's door.
Driver’s door
Fuel-filler lid
NOTE
The location to be unlocked can be
changed.
Refer to the Settings section in the
Mazda Connect Owner's Manual.
When unlocking, the hazard warning
lights and sound operate two times.

(Unlocking from the front passenger’s
door)
The following locations are unlocked by
touching the sensing area of the door
release touch sensor of the front
passenger's door.
All doors
Fuel-filler lid
Liftgate
When unlocking, the hazard warning
lights and sound operate two times.
NOTE
Confirm that all the doors and liftgate/
trunk lid are securely locked.
For the liftgate/trunk lid, move it
without pressing the electric liftgate/
trunk lid opener to verify that the
liftgate/trunk lid has not been left ajar.
Before Driving
Doors and Locks
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