2023 MAZDA MODEL CX-50 battery replacement

Keep all flames and sparks
away from open battery cells because
hydrogen gas is produced from open
battery cells while charging the
battery or adding battery fluid:
Flames and sparks near open battery
cells are dangerou s. Hydrogen gas,
produced during normal battery
operation, could ignite and cause the
battery to explode. An exploding
battery can cause serious burns and
injuries. Keep all flames including
cigarettes and sparks away from open
battery cells.
NOTE
Before performing battery
maintenance, remove the battery
cover.

▼ 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 battery replacement.
Maintenance and Care
Owner Maintenance
6-28
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18

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 battery 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).
The following conditions indicate that
the battery power is low:
A message, “Low Key Fob Battery.
Replace Battery” is displayed on the
multi-information display when the
ignition is switched OFF.
The system does not operate and the
operation indicator light on the
transmitter does not flash when the
buttons are pressed.
The system's operational range is
reduced.
Incorrect battery replacement
operation may damage the key.
Replacing the battery at an Authorized
Mazda Dealer is recommended. If
replacing the battery by yourself,
follow the instruction.
Replacing the key battery
1. Remove the lower cover while sliding the knob in the direction of
the arrow.
2. Press in the tab to unlock the upper
cover.
Maintenance and Care
Owner Maintenance
6-29
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18

Specifications
▼Engine
Item Specification
SKYACTIV-G 2.5 SKYACTIV-G 2.5T
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 89.0 × 100 mm (3.50 × 3.94 in)
Displacement 2,488.5 ml (2,488.5 cc)
Compression ratio 13.010.5
▼Electrical System
Classification
Specification
Battery
*1With i-stop LN3 EFB*2
Without i-stop12V-60Ah/20HR
Spark-plug
number SKYACTIV-G 2.5
Mazda Genuine spark
plug
*3PE5R-18-110 or PE5S-18-110
SKYACTIV-G 2.5T Mazda Genuine spark
plug
*3PY8V-18-110
*1 Check the battery installed on the vehicle and us
e a battery with an equal or higher performance.
However, the performance of the battery may vary even among the same battery types, consult an
Authorized Mazda Dealer for replacement.
*2 LN3 EFB is designed for i-stop system (FOR STOP & START). Only LN3 EFB should be used to ensure correct operation of i-stop system (FOR STOP & START). Consult an Authorized Mazda Dealer for
details.
*3 This spark plug provides the SKYACTIV-G engine with optimum performance. Contact an AuthorizedMazda Dealer for details.
CAUTION
When cleaning the iridium plugs, do no t use a wire brush. The fine particulate
coating on the iridium alloy and platinum tips could be damaged.
▼ Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-16.
Coolant FL-22 type
Automatic transmission fluid
*1Mazda Genuine ATF FZ
Transfer case oil
*2Mazda Long Life Hypoid Gear Oil SG1
Rear differential oil
*2Mazda Long Life Hypoid Gear Oil SG1
Specifications
Specifications
9-4
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18

Index
A
Accessory Socket....................... 5-41
Active Driving Display................4-35
Adaptive Front Lighting System
(AFS)........................................ 4-93
Add-On Non-Genuine Parts and
Accessories............................... 8-16
Advanced KeyAdvanced keyless entry
system................................... 3-9
Operational range................ 3-10
Advanced Keyless Entry System..... 3-9
Antilock Brake System (ABS).......4-78
Assist Grips............................... 5-48
AUTOHOLD.............................. 4-73
AUTOHOLD Warning Beep........ 7-39
Automatic Transmission Active Adaptive Shift (AAS)... 4-40
Automatic transmission
controls................................4-37
Direct mode.........................4-47
Driving tips.......................... 4-48
Manual shift mode............... 4-41
Shift-lock system...................4-38
Transmission ranges.............. 4-39
B
Battery...................................... 6-27Maintenance........................ 6-28
Replacement........................ 6-28
Specifications......................... 9-4
Battery Runs Out....................... 7-11
Jump-starting....................... 7-11
Blind Spot Assist......................4-141
Blind Spot Monitoring (BSM)..... 4-99
Canceling operation of Blind Spot
Monitoring (BSM)...............4-103
Blind Spot Monitoring (BSM) Warning
Beep.........................................7-39
Body Lubrication....................... 6-22
Bottle Holder............................ 5-48
Brakes
Brake assist.......................... 4-72
Brake override system........... 4-72
Electric Parking Brake (EPB)....4-68
Foot brake............................4-67
Pad wear indicator................4-72
Parking brake....................... 4-68
Warning light........................4-72
Brake Override System............... 4-72
Brake Override Warning Beep.....7-38
Break-In Period......................... 3-46
C
Capacities...................................9-5
Cell Phones.............................. 8-17
Center Console......................... 5-50
Child Restraint Categories of child-restraint
systems................................ 2-36
Child-restraint precautions.... 2-31
Child-restraint system
installation........................... 2-36
Child-restraint system suitability
for various seat positions
table.................................... 2-38
Installing child-restraint
systems................................ 2-41
ISOFIX child-restraint systems
(Mexico).............................. 2-47
LATCH child-restraint systems
(Except Mexico)................... 2-47
Climate Control System Fully automatic type..............5-10
Manual type...........................5-6
Operating tips........................ 5-2
Vent operation....................... 5-3
Collision warning...................... 7-40
Coming Home Light.................. 4-52
10-2
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18

Index
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) System
Warnings.................................. 7-40
Message Indicated on Multi-
information Display................... 7-32
Meters...................................... 4-18
MirrorsOutside mirrors.................... 3-32
Rearview mirror.................... 3-34
Mirror Defogger........................ 4-60
Multi-information Display.......... 4-20
O
Outside Mirrors.........................3-32
Overhead Console.................... 5-49
Overhead Lights........................ 5-39
Overheating.............................. 7-15
Overloading.............................. 3-51
Owner Maintenance Closing the hood..................6-13
Engine compartment
overview.............................. 6-14
Key battery replacement........6-29
Opening the hood................ 6-12
Owner maintenance
precautions.......................... 6-11
P
Panorama sunroof..................... 3-39
Parking Brake............................ 4-68
Parking Sensor System............. 4-215
Power Liftgate........................... 3-22
Power Liftgate Warning Beep...... 7-38
Power Steering.......................... 4-88
Power Windows........................ 3-36
R
Rearview Mirror........................ 3-34
Rear Coat Hooks....................... 5-49
Rear Cross Tra ffi c Alert (RCTA) ...........
.............................................. 4-113
Rear Cross Traffic Alert (RCTA)
Warning Beep........................... 7-39
Rear Door Child Safety Locks..... 3-18
Rear Side Radar Sensor............ 4-195
Rear View Monitor.................. 4-206 Displayable range on the
screen................................ 4-208
Rear view monitor
operation........................... 4-210
Rear view parking camera
location............................. 4-207
Switching to the rear view monitor
display............................... 4-208
Variance between actual road
conditions and displayed
image................................ 4-213
Viewing the display.............4-209
Rear Window Defogger............. 4-59
Rear Window Washer................ 4-58
Rear Window Wiper.................. 4-58
Recommended Oil.................... 6-16
Recording of Vehicle Data..........8-19
Recreational Towing.................. 3-61
Registering Your Vehicle in A Foreign
Country.................................... 8-15
Replacement Fuse..................................... 6-35
Key battery........................... 6-29
Light bulbs........................... 6-34
Tires.....................................6-32
Wheel.................................. 6-34
Wiper.................................. 6-22
Road Keep Assist.....................4-144
Rocking the Vehicle................... 3-49
S
Safety Defects, Reporting
(Canada).................................. 8-13
10-7
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18