2020 MAZDA MODEL CX-9 change key battery

Keyless Entry System
This system uses the key buttons to
remotely lock and unlock the doors and
the liftgate, 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.
For vehicles with the type A/type B
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 Contact Authorized Mazda
Dealer and Have Vehicle Inspected on
page 7-31.
Refer to Taking Action on page 7-37.
Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off
(STOP) Warning Beep on page 7-48.
Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle
Warning Beep on page 7-48.
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/liftgate 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
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Battery life is about 1 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/type B instrument cluster (page
4-13, 4-30), 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 the
Authorized Mazda Dealer when
additional keys are required.
▼Tr a n s m i t t e r
Ty p e A
Operation
buttons
Operation indicator light
Ty p e B
Operation
buttons
Operation indicator light
NOTE
The headlights turn on/off by operating
the transmitter. Refer to Leaving Home
Light on page 4-71.
(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
3-47.
(With the advanced
keyless function)
A beep sound can be heard for
confirmation when the doors and the
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 Personalization Features on
page 9-9.
Use the following procedure to change the
setting.
1. Switch the igniti on off and close all of
the doors and the liftgate.
2. Open the driver's door.
Before Driving
Keys
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Index
Key Left-in-trunk Warning Beep (With
the advanced keyless function)......... 7-49
Key Left-in-vehicle Warning Beep (With
the advanced keyless function)......... 7-49
Key Removed from Vehicle Warning
Beep...................................................7-48
Key Suspend Function........................ 3-9
L
Label Information............................... 9-2
Lane Departure Warning sound........ 7-51
Lane-change Signals......................... 4-74
Lane-keep Assist System (LAS) & Lane
Departure Warning System
(LDWS)........................................... 4-156
Leaving Home Light......................... 4-71
Liftgate.............................................. 3-20When Liftgate Cannot be
Opened......................................... 7-52
Lighting Control................................4-68
Lights-on Reminder.......................... 7-47
Light Bulbs Replacement................................ 6-42
Specifications.................................9-6
Lubricant Quality ................................ 9-4
Luggage Compartment....................5-106 Cargo Securing Loops............... 5-106
Cargo Sub-Compartment........... 5-106
Luggage Compartment Light............ 5-94
M
Maintenance
Information.................................... 6-2
Scheduled.......................................6-4
Maintenance Monitor........................ 6-15
Map Lights........................................ 5-94
Mazda Radar Cruise Control with Stop &
Go function (MRCC with Stop & Go
function).......................................... 4-141 Close proximity warning........... 4-145
Cruise control function.............. 4-153
Display indication......................4-143
Setting the system..................... 4-146
Stop hold control....................... 4-152
Message Indicated in Multi-information
Display.............................................. 7-45
Message Indicated on Display.......... 7-43
Meters................................................ 4-12
Mirrors Outside mirrors..... ....................... 3-34
Rearview mirror.......................... 3-36
Mirror Defogger......... ....................... 4-79
Moonroof...........................................3-42
Multi-information Display (Type
A).......................................................4-14
Multi-information Display (Type
B)....................................................... 4-31
Multi-information Display (Type
C)....................................................... 4-46
O
Off-Road Traction Assist
Off-Road Traction Assist indicator
light............................................ 4-104
Off-Road Traction Assist
switch......................................... 4-105
Outside Mirrors......... ........................ 3-34
Overhead Console........................... 5-104
Overhead Lights................................ 5-94
Overheating....................................... 7-23
Overloading....................................... 3-54
Owner Maintenance Closing the hood...... ................... 6-19
Engine compartment overview.... 6-21
Key battery replacemen t..............6-34
Opening the hood........................ 6-19
Owner maintenance
precautions................................... 6-17
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