2021 MAZDA MODEL CX-3 maintenance

Thank you for choosing a Mazda. We at Mazda design and build vehicles with complete
customer satisfaction in mind.

To help ensure enjoyable and trouble-free operation of your Mazda, read this manual
carefully and follow its recommendations.

An Authorized Mazda Dealer knows your vehicle best. So when maintenance or service is
necessary, that's the place to go.

Our nationwide network of Mazda professionals is dedicated to providing you with the best
possible service.

We assure you that all of us at Mazda have an ongoing interest in your motoring pleasure
and in your full satisfaction with your Mazda product.
Mazda Motor Corporation
HIROSHIMA, JAPAN

Important Notes About This Manual
Keep this manual in the gl ove compartment as a handy reference for th e safe and enjoyable use of your Mazda.
Should you resell the vehicle, leave th is manual with it for the next owner.

All specifications and descriptions are accurate at the time of printing. Because impr ovement is a constant goal
at Mazda, we reserve the right to ma ke changes in specifications at any time without notice and without obliga ‐
tion.

Air Conditioner and the Environment
Your Mazda's genuine air conditioner is filled with a refrigerant that has been found not to damage the earth's
ozone layer. If the air conditione r does not operate properly, cons ult an Authorized Mazda Dealer.
Perchlorate
Certain components of this vehicle su ch as [air bag modules, seat belt pretensioners, lithium batteries,…] may
contain Perchlorate Material-- Special handling may a pply for service or vehicle end of life disposal. See
www.dtsc.ca.gov/hazardouswaste/perchlorate.

Please be aware that this manual applies to all mode ls, equipment and options. As a result, you may find
some explanations for equipment not installed on your vehicle.

©2020 Mazda Motor CorporationJuly 2020 (Print1)
A Word to Mazda Owners
CX-3_8JL1-EA-20G_Edition1_old 2020-5-22 15:31:00

Table of Contents
Pictorial Index
Interior, exterior views and part identification of your Mazda.1
Essential Safety Equipment
Important information about safety e quipment, including seats, seat belt
system, child-restraint systems and SRS air bags.2
Before Driving
Use of various features, including keys, doors, mirrors and windows.3
When Driving
Information concerning safe driving and stopping.4
Interior Features
Use of various features for ride comfort, including air-conditioning and
audio system.5
Maintenance and Care
How to keep your Mazda in top condition.6
If Trouble Arises
Helpful information on what to do if a problem arises with the vehicle.7
Customer Information and Reporting Safety Defects
Important consumer informati on including warranties and add-on
equipment.8
Specifications
Technical information about your Mazda.9
Index10
CX-3_8JL1-EA-20G_Edition1_old 2020-5-22 15:31:00

Do not operate a vehicle with a damaged seat belt:
Using a damaged seat belt is dangerous. An accident could damage the belt webbing of the
seat belt in use. A damaged seat belt cannot pr ovide adequate protection in a collision. Have
an Authorized Mazda Dealer inspect all seat be lt systems in use during an accident before
they are used again.
Have your seat belts changed immediately if the pretensioner or load limiter has been
expended:
Always have an Authorized Mazda Dealer imme diately inspect the seat belt pretensioners
and air bags after any collision. Like the air ba gs, the seat belt pretensioners and load limiters
will only function once and must be replaced aft er any collision that caused them to deploy. A
seat belt with an expended pret ensioner or load limiter is still better than wearing no seat belt
at all; however, if the seat belt pretensioners and load limiters are not replaced, the risk of
injury in a collision will increase.
Positioning the Shoulder Portion of the Seat Belt:
Improper positioning of the shoulder portion of the seat belt is dangerous. Always make sure
the shoulder portion of the seat belt is positioned across your shoulder and near your neck,
but never under your arm, on yo ur neck, or on your upper arm.
Positioning the Lap Portion of the Seat Belt:
The lap portion of the seat belt worn too high is dangerous. In a collision, this would
concentrate the impact force directly on the abdominal area, causing serious injury. Wear the
lap portion of the belt snugly and as low as possible.
CAUTION
Belt retraction may become difficult if the belts and rings are soiled, so try to keep them clean.
For more details about cleaning the seat belts, refer to "Seat Belt Maintenance" (page 6-59).

Ring
▼ Pregnant Women and Persons with Serious Medical Conditions
Pregnant women should always wear seat belts. Ask your doctor for specific
recommendations.
The lap belt should be worn SNUGLY AND AS LOW AS POSSIBLE OVER THE HIPS.
Essential Safety Equipment
Seat Belt Systems
2-22
CX-3_8JL1-EA-20G_Edition1_old
2020-5-22 15:31:00

NOTE
Power window system initialization
procedure
If the battery was disconnected during
vehicle maintenance, or for other reasons
(such as a switch continues to be operated
after the window is fully open/closed), the
window will not fully open and close
automatically.
The power window auto function will only
resume on a power window that has been
reset.
1. Switch the ignition ON.
2. Make sure that the power window lockswitch located on the driver's door is
not depressed.
3. Press the switch and fully open the
window.
4. Pull up the switch to fully close the window and continue holding the
switch for about 2 seconds after the
window fully closed.
5. Make sure that the power windows operate correctly using the door
switches.
▼Jam-safe Window
If foreign matter is detected between the
window and the window frame while the
window is closing automatically (refer to
Auto-opening/Closing on page 3-31), the
window stops closing and automatically
opens partway.
NOTE
The jam-safe function may operate
under the following conditions:
A strong impact is detected while the
window is closing automatically.
Window is closing automatically in
very low temperatures.
In the event the jam-safe function
activates and the power window cannot
be closed automatically, pull and hold
the switch and the window will close.
The jam-safe window function does not
operate until the system has been reset.
Before Driving
Windows
3-32
CX-3_8JL1-EA-20G_Edition1_old
2020-5-22 15:31:00

Break-In Period
No special break-in is necessary, but a few
precautions in the first 1,000 km (600
miles) may add to the performance,
economy, and life of the vehicle.
Do not race the engine.
Do not maintain one constant speed,
either slow or fast, for a long period of
time.
Do not drive constantly at full-throttle or
high engine rpm for extended periods of
time.
Avoid unnecessary hard stops.
Avoid full-throttle starts.
Saving Fuel and Protectionof the Environment
How you operate your Mazda determines
how far it will travel on a tank of fuel. Use
these suggestions to help save fuel and
reduce CO
2.
Avoid long warm-ups. Once the engine
runs smoothly, begin driving.
Avoid fast starts.
Drive at lower speeds.
Anticipate when to apply the brakes
(avoid sudden braking).
Follow the maintenance schedule (page
6-4) and have an Authorized Mazda
Dealer perform inspections and
servicing.
Use the air conditioner only when
necessary.
Slow down on rough roads.
Keep the tires properly inflated.
Do not carry unnecessary weight.
Do not rest your foot on the brake pedal
while driving.
Keep the wheels in correct alignment.
Keep windows closed at high speeds.
Slow down when driving in crosswinds
and headwinds.
WA R N I N G
Never stop the engine when going down a
hill:
Stopping the engine when going down a
hill is dangerous. This causes the loss of
power steering and power brake control,
and may cause damage to the drivetrain.
Any loss of steering or braking control
could cause an accident.
Before Driving
Driving Tips
3-40
CX-3_8JL1-EA-20G_Edition1_old 2020-5-22 15:31:00

SignalIndicator Lights Page
(Green)
*Mazda Radar Cruise Control with Stop & Go function
(MRCC with Stop & Go function) Set Indicator Light 4-107
(Red)
*Smart Brake Support/Smart C
ity Brake Support (SBS/SCBS)
Indicator Light*1
Advanced Smart City Brake Support (Ad ‐
vanced SCBS)
4-118
Smart City Brake Sup ‐
port (SCBS) 4-122
Smart Brake Support (SBS)4-125
*Smart Brake Support/Smart C ity Brake Support (SBS/SCBS)
OFF Indicator Light*1
Advanced Smart City Brake Support (Ad ‐
vanced SCBS)
4-118
Smart City Brake Sup ‐
port (SCBS) 4-122
Smart Brake Support (SBS)4-125
(White)
*Cruise Main Indication 4-137
(White/Green)
*Cruise Set Indication/Indicator Light4-137
*1 The light turns on when the ignition is switched on for an operatio
n check, and turns off
a few seconds later or when the engine is star ted. If the light does not turn on or remains
turned on, have the vehicle inspected at an Authorized Mazda Dealer.
▼ Wrench Indicator Light
When the ignition is switched ON, the
wrench indicator light turns on and then
turns off after a few seconds.

The wrench indicator light turns on when
the preset maintenance period arrives.
Verify the content and perform
maintenance.
Refer to Maintenance Monitor on page
6-14.
When Driving
Instrument Cluster and Display
*Some models.4-25
CX-3_8JL1-EA-20G_Edition1_old
2020-5-22 15:31:00

As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pre ssure telltale when one or more of your tires is
significantly under-inflated. Accordingly, when th e low tire pressure telltale illuminates, you
should stop and check your tires as soon as possible, and inflate them to the proper
pressure. Driving on a significantly under-in flated tire causes the tire to overheat and can
lead to tire failure. Under-inflation also reduce s fuel efficiency and tire tread life, and may
affect the vehicle's handling and stopping ability.
Please note that the TPMS is not a substitute for proper tire maintenance, and it is the
driver's responsibility to maintain correct ti re 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 wi ll 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 th at 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 regi ster a rapid tire deflation or blow out.
▼System Error Activation
When the warning light flashes, there may
be a system malfunction. Consult an
Authorized Mazda Dealer.
A system error activation may occur in the
following cases:
When there is equipment or a device
near the vehicle using the same radio
frequency as that of the tire pressure
sensors.
When a metallic device such as a
non-genuine navigation system is
equipped near the center of the
dashboard, which may block radio
signals from the tire pressure sensor to
the receiver unit.
When using the following devices in the
vehicle that may cause radio
interference with the receiver unit.
A digital device such as a personal
computer.
A current converter device such as a
DC-AC converter.
When excess snow or ice adheres to the
vehicle, especially around the wheels.
When the tire pressure sensor batteries
are exhausted.
When using a wheel with no tire
pressure sensor installed.
When using tires with steel wire
reinforcement in
the sidewalls.
When using tire chains.
When Driving
Tire Pressure Monitoring System
4-141
CX-3_8JL1-EA-20G_Edition1_old 2020-5-22 15:31:00

Operating Tips
Operate the climate control system with
the engine running.
To prevent the battery from being
discharged, do not leave the fan control
dial on for a long period of time with the
ignition switched ON when the engine is
not running.
Clear all obstructions such as leaves,
snow and ice from the hood and the air
inlet in the cowl grille to improve the
system efficiency.
Use the climate control system to defog
the windows and dehumidify the air.
The recirculate mode should be used
when driving through tunnels or while
in a traffic jam, or when you would like
to shut off outside air for quick cooling
of the interior.
Use the outside air position for
ventilation or windshield defrosting.
If the vehicle has been parked in direct
sunlight during hot weather, open the
windows to let warm air escape, then
run the climate control system.
Run the air conditioner about 10
minutes at least once a month to keep
internal parts lubricated.
Have the air conditioner checked before
the weather gets hot. Lack of refrigerant
may make the air conditioner less
efficient.
The refrigerant specifications are
indicated on a label attached to the
inside of the engine compartment. If the
wrong type of refrigerant is used, it
could result in a serious malfunction of
the air conditioner. Consult a
professional, government certified
repairer for the inspection or repair
because a special device is required for
the air conditioner maintenance.
For details, consult an Authorized
Mazda Dealer.
Label
Interior Features
Climate Control System
5-4
CX-3_8JL1-EA-20G_Edition1_old 2020-5-22 15:31:00