2021 MAZDA MODEL CX-3 brake fluid

Owner Maintenance Precautions
The owner or a qualified service technician should make these vehicle inspections at the
indicated intervals to ensure safe and dependable operation.

Bring any problem to the attention of an Authorized Mazda Dealer or qualified service
technician as soon as possible.
When Refueling
Brake and clutch fluid level (page 6-27)
Engine coolant level (page 6-25)
Engine oil level (page 6-24)
Washer fluid level (page 6-27)
At Least Monthly
Tire inflation pressures (page 6-36)
At Least Twice a Year (For Example, Every Spring and Fall)
You can do the following scheduled maintenance items if you have some mechanical ability
and a few basic tools and if you closely follow the directions in this manual.
Engine coolant (page 6-25)
Engine oil (page 6-22)

Improper or incomplete service may result in problems. Th is section gives instructions only
for items that are easy to perform.

As explained in the Introduc tion (page 6-2), several procedures can be done only by a
qualified service technician with special tools.

Improper owner maintenance during the warranty period may affect warranty coverage.
Refer to Introduction (page 6-2) for owner' s responsibility in protecting your investment.
For details, read the separate Mazda Warranty statement provided with the vehicle. If you
are unsure about any servicing or maintenance procedure, have it done by an Authorized
Mazda Dealer.

There are strict environmental laws regarding the disposal of waste oil and fluids. Please
dispose of your waste properly and with due regard to the environment.

We recommend that you entrust the oil and fluid changes of your vehicle to an Authorized
Mazda Dealer.
Maintenance and Care
Owner Maintenance
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Engine Compartment Overview
Windshield washer fluid reservoir
Engine oil-dipstickBattery
Fuse block
Cooling system capEngine coolant reservoir
Engine oil-filler cap
Brake/Clutch fluid reservoir
Maintenance and Care
Owner Maintenance
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Brake/Clutch Fluid
▼Inspecting Brake/Clutch Fluid Level
WARNING
If the brake/clutch fluid level is low, have
the brakes inspected:
A low brake/clutch
fluid level is dangerous.
A low level could indicate brake lining wear
or a brake system leak which could cause
the brakes to fail and lead to an accident.
The brakes and clutch draw fluid from the
same reservoir.
Inspect the fluid leve l in the reservoir
regularly. It should be kept between the
MAX and MIN lines.
The level normally drops with
accumulated distance, a condition
associated with wear of brake and clutch
linings. If it is excessively low, have the
brake/clutch system inspected by an
Authorized Mazda Dealer.
Window Washer Fluid
▼ Inspecting Washer Fluid Level
WA R N I N G
Use only windshield washer fluid or plain
water in the reservoir:
Using radiator antifreeze as washer
fluid is
dangerous. If sprayed on the windshield, it
will dirty the windshield, affect your
visibility, and could result in an accident.
Using Washer Fluid Without Anti-freeze
Protection in Cold Weather:
Operating your vehicle in temperatures
below 4 °C (40 °F) using washer fluid
without anti-freeze prot ection is dangerous
as it could cause impaired windshield
vision and result in an accident. In cold
weather, always use washer fluid with
anti-freeze protection.
NOTE
State or local regulations may restrict the
use of volatile organic compounds
(VOCs), which are commonly used as
anti-freeze agents in washer fluid. A
washer fluid with limited VOC content
should be used only if it provides adequate
freeze resistance for all regions and
climates in which the vehicle will be
operated.
Maintenance and Care
Owner Maintenance
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SignalWarning
Brake System Warning
Light This warning has the
following functions:
Parking brake warning/Warning light inspection
The light illuminates when the parking brake is applied w ith the ignition switched to
START or ON. It turns off when the parking brake is released.
When the light turns on
If the brake system warning light remains turned on even though the parking brake is
released, the brake fluid may be low or th ere could be a problem with the brake sys ‐
tem. Park the vehicle in a safe place i mmediately and contact an Authorized Mazda
Dealer.
When the light is flashing
The light flashes if the Electric Pa rking Brake (EPB) has a malfunction.
If the light remains flashing even if th e Electric Parking Brake (EPB) switch is oper ‐
ated, consult an Authorized Mazd a Dealer as soon as possible.
WA R N I N G
Do not drive with the brake system warning light illuminated. Contact an Authorized
Mazda Dealer to have the brakes inspected as soon as possible:
Driving with the brake system warning light illuminated is dangerous. It indicates that
your brakes may not work at all or that they could completely fail at any time. If this
light remains illuminated, after checking that the parking brake is fully released, have
the brakes inspected immediately.
CAUTION
In addition, the effectiveness of the braking may diminish so you may need to depress
the brake pedal more st rongly than normal to stop the vehicle.
Electronic Brake Force
Distribution System Wa r n i n g If the electronic brake force distribution
control unit determines that some compo ‐
nents are operating incorrectly, the control unit may illuminate the brake system
warning light and the ABS warning light si multaneously. The problem is likely to be
the electronic brake forc e distribution system.
WA R N I N G
Do not drive with both the ABS warning light and brake warning light illuminated.
Have the vehicle towed to an Authorized Mazda Dealer to have the brakes inspected as
soon as possible:
Driving when the brake system warning lig ht and ABS warning light are illuminated
simultaneously is dangerous.
When both lights are illuminated, the rear wheels could lock more quickly in an emer‐
gency stop than under normal circumstances.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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Specifications
▼Engine
Item
Specification
Type DOHC-16V in-line, 4-cylinder
Bore × Stroke 83.5 × 91.2 mm (3.29 × 3.59 in)
Displacement 1,997.6 ml (1,997.6 cc)
Compression ratio 13.0
▼Electrical System
Item
Specification
Battery
*1Canada 12V-65Ah/20HR
Except Canada 12V-60Ah/20HR or 12V-65Ah/20HR
Spark-plug number Mazda Genuine spark
plug
*2PE5R-18-110 or PE5S-18-110
*1 Check the battery installed on the vehicle and use a battery
with an equal or higher performance. However, the
performance of the battery may vary even among the sa me battery types, consult an Authorized Mazda Dealer
for replacement.
*2 The spark plugs provide the SKYACTIV-G its optimum performance. Consult an Authorized Mazda Dealer
for details.

CAUTION
When cleaning the iridium plugs, do not 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 6-22.
Coolant FL-22 type
Manual transaxle oil Mazda Long Life Gear Oil G7
*1
Automatic transaxle fluid Mazda Genuine ATF-FZ
Transfer case oil Mazda Long Life Hypoid Gear Oil SG1
Rear differential oil Mazda Long Life Hypoid Gear Oil SG1
Brake fluid/Clutch fluid SAE J1703 or FMVSS116 DOT-3
*1 Mazda Long Life Gear Oil G7 is superior oil for low fuel cost and optimum shift-feel. Using Mazda Long Life
Gear Oil G7 is recommended.
If Mazda Long Life Gear Oil G7 cannot be obtained, use standard oil (API Service GL-4 (SAE 75W-80)).
Specifications
Specifications
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Index
Break-in period............................ 3-40
Driving in flooded area............... 3-44
Driving on uneven road...............3-46
Floor mat..................................... 3-41
Hazardous driving... .................... 3-41
Overloading................................. 3-45
Rocking the vehicle..................... 3-42
Saving fuel and protection of the
environment................................. 3-40
Winter driving............................. 3-42
Dynamic Stability Control (DSC)..... 4-68 TCS/DSC Indicator Light............4-68
E
Electric Parking Brake (EPB)........... 4-55
Electric Parking Brake (EPB) Warning
Beep...................................................7-44
Emergency StartingPush-Starting............................... 7-20
Starting a Flooded Engine........... 7-20
Emergency Towing Tiedown Hooks....... .................... 7-24
Towing Description..................... 7-23
Emission Control System..................3-24
Ending Screen Display......................4-70
Engine Coolant.........................................6-25
Engine Compartment
Overview..................................... 6-21
Exhaust gas.................................. 3-25
Hood release............. ................... 6-19
Oil................................................ 6-22
Essential information.......................... 6-2
Event Data Recorder......................... 8-21
Excessive Speed Warning................. 7-45
Exhaust Gas...................................... 3-25
Exterior Care..................................... 6-53 Aluminum Wheel Maintenance... 6-57
Bright-Metal Maintenance...........6-57
Maintaining the Finish................ 6-54
Plastic Part Maintenance............. 6-58
F
FlasherHazard warning........................... 4-54
Headlights.................................... 4-40
Flat Tire............................................... 7-3 Mounting the Spare Tire............. 7-13
Removing a Flat Tire.................... 7-9
Floor Mat.......................................... 3-41
Fluid Brake/Clutch................................ 6-27
Washer......................................... 6-27
Fluids Classification................................. 9-4
Fog Lights......................................... 4-46
Foot Brake.........................................4-55
Forward Sensing Camera (FSC)..... 4-126
Front Seat............................................ 2-5
Fuel Filler lid and cap......................... 3-26
Gauge........................................... 4-13
Requirements............................... 3-23
Tank capacity.................................9-5
Fuel Consumption Display............... 4-69
Fuel Economy Monitor..................... 4-69 Ending screen display................. 4-70
Fuel consumption di splay............4-69
Fuses.................................................. 6-47 Panel description......................... 6-49
Replacement................................ 6-47
G
Gauges............................................... 4-11
Glove Compartment... ..................... 5-148
H
Hazardous Driving............................ 3-41
Hazard Warning Flasher....................4-54
Headlights
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Index
Coming home light......................4-44
Control......................................... 4-40
Flashing....................................... 4-44
High-low beam............................ 4-44
Leaving home light..................... 4-45
Leveling....................................... 4-45
Head Restraint................................... 2-17
High Beam Control System
(HBC)................................................ 4-79
Hill Launch Assist (H LA)................ 4-63
Hood Release.................................... 6-19
Horn...................................................4-53
I
If a Warning Light Turns On or
Flashes............................................... 7-26
If the Active Driving Display does not
operate............................................... 7-48
Ignition Switch............................................ 4-4
Ignition not switched off (STOP)
warning beep..................................... 7-43
Illuminated Entry System............... 5-143
Immobilizer System.......................... 3-36
Indicator Lights................................. 4-23 Low engine coolant
temperature.................................. 4-26
Wrench......................................... 4-25
Inspecting Brake/Clutch Fluid
Level.................................................. 6-27
Inspecting Coolant Leve l.................. 6-25
Inspecting Engine Oil Level............. 6-24
Inspecting Washer Fluid Level......... 6-27
Instrument Cluster... .......................... 4-11
Interior Care...................................... 6-59 Active driving display
maintenance................................. 6-61
Cleaning the floor mats............... 6-61
Cleaning the window interiors.....6-61
Instrument panel top
maintenance................................. 6-60
Leather upholstery
maintenance................................. 6-60
Panel maintenance....................... 6-61
Plastic part maintenance.............. 6-60
Seat belt maintenance..................6-59
Upholstery and synthetic leather
maintenance................................. 6-59
Vinyl upholstery maintenance..... 6-59
Interior Lights................................. 5-142 Luggage Compartment Light.....5-142
Map Lights................................ 5-142
Overhead Lights........................ 5-142
i-ACTIVSENSE................................ 4-75 Active Safety Technology........... 4-75
Adaptive Front Lighting System
(AFS)........................................... 4-78
Advanced Smart City Brake Support
(Advanced SCBS)..................... 4-116
Blind Spot Monitoring (BSM).....4-87
Camera and sensors..................... 4-76
Distance Recognition Support System
(DRSS).........................................4-99
Forward Sensing Camera
(FSC)......................................... 4-126
High Beam Control System
(HBC).......................................... 4-79
Lane Departure Warning System
(LDWS)....................................... 4-82
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)..................4-104
Pre-Crash Safety Technology...... 4-75
Radar Sensors (Rear).................4-134
Radar sensor (front)...................4-131
Rear Cross Traffic Alert
(RCTA)...................................... 4-101
Smart Brake Support (SBS)...... 4-123
Smart City Brake Support
(SCBS)....................................... 4-120
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