battery replacement MAZDA MODEL 3 HATCHBACK 2019 Owners Manual (in English)

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 7-32.
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
6-27).
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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Operational Range
▼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 3-4.
▼Locking, Unlocking the Doors
1. Exterior antenna
2. 80 cm (31 in)
3. Operational range

NOTE
The system may not operate if you are
too close to the windows or door
handles.
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.
Around the dashboard
In the storage compartments such as
the glove compartment or the center
console
On the rear parcel shelf (4–door)
Next to a communication device such
as a mobile phone
▼ Opening the Liftgate/Trunk Lid
1. Exterior antenna
2. 80 cm (31 in)
3. Operational range
Before Driving
Advanced Keyless Entry System
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Turning the Engine Off
▼Turning the Engine Off
WA R N I N G
Do not stop the engine while the vehicle is
moving:
Stopping the engine while the vehicle is
moving for any reason other than in an
emergency is dangerous. Stopping the
engine while the vehicle is moving will
result in reduced braking ability due to the
loss of power braking, which could cause
an accident and serious injury.
1. Stop the vehicle completely.
2.
(Manual transmission)
Shift into neutral an d set the parking
brake.
(Automatic transmission)
Shift the selector lever to the P
position and set the parking brake.
3. Press the push button start to turn off
the engine. The ignition position is off.
CAUTION
When leaving the vehicle, make sure the
push button start is off.
NOTE
The cooling fan in the engine
compartment could turn on for a few
minutes after the i gnition is switched
from ON to OFF, whether or not the A/C
is on or off, to cool the engine
compartment quickly.
If the system detects that the remaining
battery power of the key is low when the
ignition is switched from ON to ACC or
OFF, the following is indicated.
Replace with a new battery before the
key becomes unusable.
Refer to Key Battery Replacement on
page 6-27.
A message is indicated in the display of
the instrument cluster.
Refer to KEY Warning Indication/
Warning Light (Red) on page 7-32.
(Automatic transmission)
If the engine is turned off while the
selector lever is in a position other than
P, the ignition switches to ACC.
▼ Emergency Engine Stop
Continuously pressing the push button
start or quickly pressi
ng it any number of
times while the engin e is running or the
vehicle is being drive n will turn the engine
off immediately. The ignition switches to
ACC.
When Driving
Start/Stop Engine
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Cylinder Deactivation*
▼Cylinder Deactivation
The cylinder deactivation is a function
designed to reduce fuel consumption and
improve fuel economy by deactivating 2
out of the 4 cylinders while driving. The
function constantly determines which is
better for driving; 4 cylinders or 2
cylinders, regardless of the driver's
operations, and it performs the switching
automatically.
When the cylinder de
activation function
does not operate
The cylinder deactivation function does
not operate under the following
conditions.
The selector lever is in the P, N, or R
position (automatic transmission), or 1st
gear (manual transmission).
The engine oil temperature or engine
coolant temperature is low.
After disconnecting the battery
terminals for some reason, such as for
battery replacement.
When Driving
Start/Stop Engine
*Some models.4-11
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Please note that the TPMS is not a
substitute for proper tire maintenance,
and it is the driver's responsibility to
maintain correct tire pressure, even if
under-inflation has not reached the level
to trigger illumination of the TPMS low
tire pressure telltale.
Your vehicle has also been equipped with
a TPMS malfunction indicator to indicate
when the system is not operating
properly.
The TPMS malfunction indicator is
combined with the low tire pressure
telltale. When the system detects a
malfunction, the telltale will flash for
approximately one minute and then
remain continuously illuminated. This
sequence will continue upon subsequent
vehicle start-ups as long as the
malfunction exists. When the
malfunction indicator is illuminated, the
system may not be able to detect or
signal low tire pressure as intended.
TPMS malfunctions may occur for a
variety of reasons, including the
installation of replacement or alternate
tires or wheels on the vehicle that
prevent the TPMS from functioning
properly. Always check the TPMS
malfunction telltale after replacing one
or more tires or wheels on your vehicle to
ensure that the replacement or alternate
tires and wheels allow the TPMS to
continue to function properly.
 To avoid false readings, the system
samples for a little while before
indicating a problem. As a result it will
not instantaneously register a rapid tire
deflation or blow out.▼ If there is a problem with the Tire
Pressure Monitoring System
(TPMS)
If the TPMS warning light flashes, there
may be a problem with the system.
Consult an Authorized Mazda Dealer to
have the system inspected.
Refer to Tire Pressu
re Monitoring System
(TPMS) Warning Indication/Warning
Light (Flashing) on page 7-32.
In the following cases, the system cannot
recognize the tire pressures correctly and
the TPMS warning light may flash.
There is equipment or a device nearby
emitting radio signals the same as a tire
pressure sensor.
A metallic object such as a non-genuine
electronic device is installed near the
center of the dashboard (obstructs the
radio signals from the tire pressure
sensors to the receiver).
A device such as one of the following is
used in the cabin.
Electronic devices such as a computer.
Converter devices such as a DC-AC
converter.
There is a large accumulation of snow or
ice around the vehicle tires.
The battery in a tir e pressure sensor is
dead.
A wheel not equipped with a tire
pressure sensor is used.
Tires employing steel in the sidewall of
the tire are installed.
Tire chains are used.
When Driving
Tire Pressure Monitoring System (TPMS)
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6Maintenance and Care
How to keep your Mazda in top condition.
Essential Information........................6-2 Introduction.................................. 6-2
Scheduled Maintenance.................... 6-4 Scheduled Maintenance................ 6-4
Owner Maintenance........................ 6-11 Owner Maintenance
Precautions..................................6-11
Hood........................................... 6-12
Engine Compartment
Overview.................................... 6-14
Engine Oil...................................6-15
Engine Coolant........................... 6-17
Brake/Clutch Fluid ..................... 6-18
Washer Fluid............................... 6-19
Body Lubrication...... .................. 6-20
Wiper Blades.............................. 6-20
Battery........................................ 6-25
Key Battery Replacement........... 6-27
Tires............................................ 6-30
Light Bulbs................................. 6-34
Fuses........................................... 6-37
Appearance Care............................. 6-43
Exterior Care.............................. 6-43
Interior Care................................6-49
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▼Battery Maintenance
To get the best service from a battery:
Keep it securely mounted.
Keep the top clean and dry.
Keep terminals and connections clean,
tight, and coated with
petroleum jelly or
terminal grease.
Rinse off spilled electrolyte immediately
with a solution of water and baking
soda.
If the vehicle will not be used for an
extended time, disconnect the battery
cables and charge the battery every 6
weeks.
▼ Battery Replacement
Contact an Authorized Mazda Dealer for a
battery replacement purchase.
Key Battery Replacement
▼Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not flash, the battery may be
dead.
Replace with a new b
attery before the
transmitter becomes unusable.
CAUTION
 Make sure the battery is installed
correctly. Battery leakage could occur if it
is not installed correctly.
 When replacing the battery, be careful
not to touch any of the internal circuitry
and electrical terminals, bend the
electrical terminals, or get dirt in the
transmitter as the transmitter could be
damaged.
 There is the danger of explosion if the
battery is not correctly replaced.
 Dispose of used batteries according to
the following instructions.
 Insulate the plus and minus terminals
of the battery using cellophane or
equivalent tape.
 Never disassemble.
 Never throw the battery into fire or
water.
 Never deform or crush.
 Replace only with the same type battery
(CR2032 or equivalent).
Maintenance and Care
Owner Maintenance
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Index
A
Accessory Socket.............................. 5-36
Active Driving Display..................... 4-28
Adaptive Front Lighting System
(AFS)................................................. 4-87
Add-On Non-Genuine Parts and
Accessories........................................ 8-16
Advanced Key
Advanced keyless entry system..... 3-9
Operational range........................ 3-10
Advanced Keyless Entry System........ 3-9
Air Bag/Front Seat Belt Pretensioner
System Warning Beep....................... 7-41
Antilock Brake System (ABS).......... 4-74
Assist Grips....................................... 5-39
AUTOHOLD..................................... 4-68
AUTOHOLD Warning Beep.............7-44
Automatic Transmission
Active Adaptive Shift (AAS)...... 4-35
Automatic transmission
controls........................................ 4-32
Direct mode................................. 4-41
Driving tips..................................4-42
Manual shift mode.......................4-35
Shift-lock system......................... 4-33
Transmission ranges.................... 4-34
B
Battery............................................... 6-25Maintenance.................................6-27
Replacement................................ 6-27
Specifications.................................9-4
Battery Runs Out.............................. 7-16 Jump-starting............................... 7-16
Blind Spot Monitoring (BSM).......... 4-93 Canceling operation of Blind Spot
Monitoring (BSM).......................4-97
Blind Spot Monitoring (BSM) Warning
Beep...................................................7-44
Body Lubrication.............................. 6-20
Bottle Holder..................................... 5-39
Brakes Brake assist.................................. 4-66
Brake override system................. 4-66
Electric Parking Brake (EPB)......4-63
Foot brake....................................4-62
Pad wear indicator....................... 4-66
Parking brake...............................4-63
Warning light............................... 4-66
Brake Override System..................... 4-66
Break-In Period................................. 3-43
C
Capacities............................................ 9-5
Cell Phones....................................... 8-17
Center Console.................................. 5-41
Child Restraint Categories of child-restraint
systems.........................................2-37
Child-restraint precautions.......... 2-32
Child-restraint system
installation................................... 2-37
Child-restraint system suitability for
various seat positions table..........2-39
Installing child-restraint
systems.........................................2-42
ISOFIX child-restraint systems
(Mexico)...................................... 2-50
LATCH child-restraint systems
(Except Mexico).......................... 2-50
Climate Control System Fully automatic type......................5-9
Gas specifications.......................... 9-8
Manual type................................... 5-5
Operating tips................................ 5-2
Vent operation................................5-3
Collision warning.............................. 7-45
Coming Home Light......................... 4-47
Cruise Control................................. 4-210
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Index
Message Indicated on Multi-information
Display.............................................. 7-38
Meters................................................ 4-12
MirrorsOutside mirrors..... ....................... 3-29
Rearview mirror.......................... 3-31
Mirror Defogger......... ....................... 4-56
Moonroof...........................................3-36
Multi-information Display................ 4-14
O
Outside Mirrors......... ........................ 3-29
Overhead Console............................. 5-41
Overhead Lights................................ 5-34
Overheating....................................... 7-20
Overloading....................................... 3-48
Owner Maintenance Closing the hood...... ................... 6-13
Engine compartment overview.... 6-14
Key battery replacemen t..............6-27
Opening the hood........................ 6-12
Owner maintenance
precautions................................... 6-11
P
Parking Brake....................................4-63
Parking Sensor System................... 4-233 Park assist sensor system
operation.................................... 4-237
Sensor detection range.............. 4-235
Power Steering.................................. 4-81
Power Windows............. ................... 3-33
R
Rearview Mirror........ ........................3-31
Rear Coat Hooks....... ........................ 5-40
Rear Cross Traffic Alert (RCTA).... 4-112
Rear Door Child Safet y Locks.......... 3-18
Rear Side Radar Sensor.................. 4-206
Rear View Monitor......................... 4-218
Displayable range on the
screen......................................... 4-220
Rear view monitor operation..... 4-223
Rear view parking camera
location...................................... 4-219
Switching to the rear view monitor
display........................................4-219
Variance between actual road
conditions and displayed
image......................................... 4-230
Viewing the display................... 4-221
Rear Window Defogger. ................... 4-55
Rear Window Washer....................... 4-54
Rear Window Wiper.... ..................... 4-54
Recommended Oil.............................6-15
Recording of Vehicle Data................ 8-19
Recreational Towing......................... 3-50
Registering Your Vehicle in A Foreign
Country.............................................. 8-15
Replacement Fuse..............................................6-37
Key battery.................................. 6-27
Light bulbs...................................6-34
Tires............................................. 6-32
Wheel........................................... 6-33
Wiper........................................... 6-20
Rocking the Vehicle.......................... 3-45
S
Safety Defects, Reporting
(Canada)............................................ 8-13
Safety Defects, Repor ting (U.S.A.)... 8-12
Saving Fuel and Protection of the
Environment...................................... 3-43
Scheduled Maintenance Canada........................................... 6-6
Mexico........................................... 6-8
U.S.A. and Puerto Rico................. 6-4
Seats Driver's seat................................... 2-5
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