2020 MAZDA MODEL CX-30 change key battery

Keyless Entry System
▼Keyless Entry System
This system uses the key buttons to
remotely lock and unlock the doors,
liftgate, and fuel-filler lid, and opens/
closes the liftgate.
The system can start the engine
without having to take the key out of
your purse or pocket.
It can also help you signal 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.
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 Indication/Warning
Light (Red)
Refer to KEY Warning Indication/
Warning Light (Red) on page 7-28.
Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched
Off
(STOP) Warning Beep on page
7-37.
Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-37.
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 6-26).
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.
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.
Before Driving
Keys
3-4
CX-30_8HG6-EA-19I_Edition1_new 2019-6-13 18:45:11

seconds and two more beep sounds
will be heard.
NOTE
The system can be set to unlock all
the doors, liftgate, and fuel-filler lid
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, liftgate, and fuel-filler lid 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 for 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 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.
Power liftgate button
*
To open/close the liftgate, press the
power liftgate button for one second
or longer with the liftgate in the fully
closed/open position.
The hazard warning lights flash twice
and the liftgate opens/closes after the
beep sounds.
For details on the power liftgate
function, refer to Power Liftgate on
page 3-21.
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 is open or
closed.
(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 advanced keyless
entry
*1 and push button start system
functions turn off and the battery
Before Driving
Keys
3-6*Some models.
CX-30_8HG6-EA-19I_Edition1_new 2019-6-13 18:45:11

Index
Storage Compartments.............. 5-41Center console..................... 5-42
Glove compartment..............5-41
Luggage compartment.......... 5-42
Overhead console................ 5-41
Storage pocket..................... 5-41
Storage Pocket.......................... 5-41
Sunshade.................................. 3-42
Sunvisors.................................. 5-34
T
Theft-Deterrent System.............. 3-45
Three-flash Turn Signal...............4-48
Tiedown Hook.......................... 7-20
Tires......................................... 6-28 Replacing a tire.................... 6-30
Replacing a wheel................ 6-31
Snow tires............................ 3-51
Specifications......................... 9-7
Temporary spare tire............. 6-30
Tire chains............................3-51
Tire inflation pressure............6-28
Tire rotation......................... 6-29
Uniform tire quality grading
system (UTQGS)................... 8-20
Tire Information Location of the tire label
(placard).............................. 8-25
Steps for determining the correct
load limit............................. 8-32
Tire labeling......................... 8-22
Tire maintenance.................. 8-27
Vehicle loading.....................8-29
Tire Pressure Monitoring
System.................................... 4-205
Touch Sensor Inoperable Warning
Beep (With the advanced keyless
function)...................................7-37
To w i n g Recreational towing.............. 3-54
Trailer towing....................... 3-54
Towing Description................... 7-19
Traction Control System (TCS).... 4-72 TCS OFF Indicator Light......... 4-72
TCS OFF switch.................... 4-73
TCS/DSC indicator light........4-72
Tra ffi c Jam Assist (TJA).............. 4-132
Close proximity warning...... 4-137
Display indication............... 4-136
Setting the system...............4-138
Shift-up/shift-down request
display............................... 4-144
Stop hold control............... 4-144
Tra ffi c Sign Recognition System
(TSR)........................................ 4-97
Trouble Battery runs out.................... 7-13
Emergency starting................7-16
Flat tire.................................. 7-5
Overheating......................... 7-17
Parking in an emergency......... 7-2
When liftgate cannot be
opened................................ 7-41
Turn and Lane-Change Signals.... 4-47
Turn Signals.............................. 4-47
U
Ultrasonic Sensor.................... 4-199
V
Vehicle Information Labels Chassis number...................... 9-2
Engine number....................... 9-3
Motor vehicle safety standard
label...................................... 9-2
Tire pressure label.................. 9-2
Vehicle emission control
information label.................... 9-2
Ve h i c l e i d e n t i fi c a t i o n
number..................................9-2
10-9
CX-30_8HG6-EA-19I_Edition1_new 2019-6-13 18:45:11