fuel cap MAZDA MODEL CX-3 2021 Owners Manual

3Before Driving
Use of various features, including keys, doors, mirrors and windows.
Keys.................................................... 3-2 Keys.............................................. 3-2
Keyless Entry System................... 3-4
Advanced Keyless Entry
System.................................................3-9 Advanced Keyless Entry System
*.....
...................................................... 3-9
Operational Range...................... 3-10
Doors and Locks.............................. 3-11 Door Locks................................. 3-11
Liftgate....................................... 3-19
Fuel and Emission........................... 3-23 Fuel and Engine Exhaust
Precautions................................. 3-23
Fuel-Filler Lid and Cap.............. 3-26
Mirrors............................................. 3-28 Mirrors........................................ 3-28
Windows........................................... 3-30 Power Windows..........................3-30
Moonroof*.................................. 3-33
Security System............................... 3-36 Modification and Add-On
Equipment...................................3-36
Immobilizer System....................3-36
Theft-Deterrent System
*.............3-38
Driving Tips..................................... 3-40 Break-In Period.......................... 3-40
Saving Fuel and Protection of the
Environment............................... 3-40
Hazardous Driving.... ..................3-41
Floor Mat.................................... 3-41
Rocking the Vehicle....................3-42
Winter Driving............................3-42
Driving In Flooded Area............ 3-44
Overloading................................ 3-45
Driving on Uneven Road............ 3-46
Towing.............................................. 3-47 Trailer Towing............................ 3-47
Recreational Towing................... 3-47
*Some models.3-1
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Fuel-Filler Lid and Cap
WA R N I N G
When removing the fuel-filler cap, loosen
the cap slightly and wait for any hissing to
stop, then remove it:
Fuel spray is dangerous. Fuel can burn skin
and eyes and cause illness if ingested. Fuel
spray is released when there is pressure in
the fuel tank and the fuel-filler cap is
removed too quickly.
Before refueling, stop the engine, and
always keep sparks and flames away from
the filler neck:
Fuel vapor is dangerous. It could be ignited
by sparks or flames causing serious burns
and injuries.
Additionally, use of the incorrect fuel-filler
cap or not using a fuel-filler cap may result
in a fuel leak, which could result in serious
burns or death in an accident.
Do not continue refueling after the fuel
pump nozzle shuts off automatically:
Continuing to add fuel after the fuel pump
nozzle has shut off automatically is
dangerous because overfilling the fuel tank
may cause fuel overflow or leakage. Fuel
overflow and leakage could damage the
vehicle and if the fuel ignites it could cause
a fire and explosion resulting in serious
injury or death.
CAUTION
Always use only a genuine Mazda fuel-filler
cap or an approved equivalent, available
at an Authorized Mazda Dealer. The wrong
cap can result in a serious malfunction of
the fuel and emission control systems.
(U.S.A. and Canada)
It may also cause the check engine light in
the instrument cluster to illuminate.
▼ Refueling
Before refueling, close all the doors,
windows, and the liftg
ate, and switch the
ignition OFF.
1. To open the fuel-filler lid, pull the remote fuel-filler lid release.

Remote fuel-filler lid release
2. To remove the fuel-filler cap, turn itcounterclockwise.
Before Driving
Fuel and Emission
3-26
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3. Attach the removed cap to the innerside of the fuel-filler lid.

Fuel-filler lid
Fuel-filler cap
4. Insert the refueling nozzle all the way
and begin refueling. Pull out the
refueling nozzle after the refueling
stops automatically.
5. To close the fuel-filler cap, turn it clockwise until a click is heard.
6. To close, press the fuel-filler lid until it locks securely.

CAUTION
(U.S.A. and Canada)
If the check fuel cap warning light
illuminates, the fuel-filler cap may not be
properly installed. If the warning light
illuminates, park your vehicle safely off the
right-of-way, remove th e fuel-filler cap and
reinstall it correctly. After the cap has been
correctly installed, the fuel cap warning
light may continue to illuminate until a
number of driving cycles have been
completed. A drive cycle consists of starting
the engine (after four or more hours with
the engine off) and driving the vehicle on
city and highway roads.
Continuing to drive with the check fuel cap
warning light illuminated could cause the
check engine light to illuminate as well.
Before Driving
Fuel and Emission
3-27
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SignalWarning Lights Page
Low Fuel Warning Light 7-33
Check Fuel Cap Warning Light*17-33
Seat Belt Warning Light (Front seat) 7-33
Door-Ajar Warning Light7-33
*Low Washer Fluid Level Warning Light7-33
(Amber)
*Smart Brake Support/Smart C
ity Brake Support (SBS/SCBS)
Wa r n i n g L i g h t 7-33
*1 The light turns on when the ignition is switched on for an operation check, and turns off a few seconds later or
when the engine is started. If the light does not turn on or remains turned on, have the vehicle inspected at an
Authorized Mazda Dealer.
*2 The light turns on continuously when the parking brake is applied.
▼ Indicator Lights
These lights turn on or flash to notify the us
er of the system operation status or a system
malfunction.
Signal Indicator Lights Page
*Front Passenger Air Bag Deactivation Indicator Light*12-66
(Green)KEY Indicator Light 3-9
Security Indicator Light*13-37
Wrench Indicator Light*14-25
(Blue)
Low Engine Coolant Temperature Indicator Light 4-26
*Shift Position Indication
4-31
Lights-On Indicator Light
4-40
When Driving
Instrument Cluster and Display
*Some models.4-23
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7. Insert a new battery into the transmitter
so that the positive pole is facing up.
8. Install the cap.
9. Install the upper cover.
10. Insert the tabs of the lower cover into
the slots of the transmitter and install
the lower cover.
Tires
For reasons of proper performance, safety,
and better fuel economy, always maintain
recommended tire inflation pressures and
stay within the recommended load limits
and weight distribution.
WA R N I N G
Using Different Tire Types:
Driving your vehicle with different types of
tires is dangerous. It could cause poor
handling and poor braking; leading to loss
of control.
Except for the limited use of the temporary
spare tire, use only the same type tires
(radial, bias-belted, bias-type) on all four
wheels.
Using Wrong-Sized Tires:
Using any other tire size than what is
specified for the vehicle (page 9-7) is
dangerous. It could seriously affect ride,
handling, ground clearance, tire clearance,
and speedometer calibration. This could
cause you to have an accident. Use only
tires that are the correct size specified for
the vehicle.
▼ Tire Inflation Pressure
WA R N I N G
Always inflate the tires to the correct
pressure:
Overinflation or underinflation of tires is
dangerous. Adverse handling or
unexpected tire failure could result in a
serious accident.
Refer to Tires on page 9-7.
Maintenance and Care
Owner Maintenance
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Use only a Mazda-genuine tire valve cap:
Use of a non-genuine part is dangerous as
the correct tire air pressure cannot be
maintained if the tire valve becomes
damaged. If the vehicle is driven under this
condition, the tire air pressure will decrease
which could result in a serious accident. Do
not use any part for the tire valve cap that
is not a Mazda-genuine part.
Inspect all tire pressures monthly
(including the spare) when the tires are
cold. Maintain recommended pressures for
the best ride, handlin g, and minimum tire
wear.
Refer to the specification charts (page
9-7).
NOTE
Always check tire pressure when tires
are cold.
Warm tires normally exceed
recommended pressures. Do not release
air from warm tires to adjust the
pressure.
Underinflation can cause reduced fuel
economy, uneven and accelerated tire
wear, and poor sealing of the tire bead,
which will deform the wheel and cause
separation of tire from rim.
Overinflation can produce a harsh ride,
uneven and accelerated tire wear, and a
greater possibility of damage from road
hazards.
Keep your tire pressure at the correct
levels. If one frequently needs inflating,
have it inspected.
▼ Tire Rotation
WA R N I N G
Rotate tires periodically:
Irregular tire wear is dangerous. To
equalize tread wear for maintaining good
performance in handling and braking,
rotate the tires every 12,000 km (7,500
miles). However Mazda recommends to
rotate every 8,000 km (5,000 miles) to help
increase tire life and distribute wear more
evenly.
Refer to Scheduled Maintenance on page
6-4.

During rotation, inspect them for correct
balance.

Do not include (TEMPORARY USE ONLY)
spare tire in rotation.Forward
Also, inspect them for uneven wear and
damage. Abnormal wear is usually caused
by one or a combination of the following:

Incorrect tire pressure
Improper wheel alignment
Out-of-balance wheel
Maintenance and Care
Owner Maintenance
6-37
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SignalWarning
(Red)
Brake Pedal Opera ‐
tion Demand Warn ‐
ing Light When only flashing
Flashes if there is the possibility of the vehi
cle not being held in the stopped position by
the AUTOHOLD function, such as on steep slopes. Depress and hold your foot on the
brake pedal.
When flashing and beep sound is activated at the same time
The warning light flashes and the beep sound is activated for about five seconds if there is
a problem with the system. If the warning light flashes and the warning sound is activated,
immediately depress the brake pedal and st op using the AUTOHOLD function then con ‐
tact an Authorized Mazda Dealer.
WARNING
Immediately depress the brake pedal if the warning light flashes and the beep sound is acti‐
vated while using the AUTOHOLD function:
Because the AUTOHOLD function is canceled forcibly, the vehicle may move unexpectedly
and result in an accident.
Check Engine Light If this light illuminates while driving, the ve
hicle may have a problem. It is important to
note the driving conditions wh en the light illuminated and consult an Authorized Mazda
Dealer.
The check engine light may illu minate in the following cases:
The fuel tank level being very low or approaching empty.The engine's electrical system has a problem.The emission control system has a problem.The fuel-filler cap is missing or not tightened securely.
If the check engine light remains on, or it flashes continuously , do not drive at high
speeds and consult an Authorized M azda Dealer as soon as possible.
Automatic Trans‐
axle Warning Light*
The light illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning light illuminates, the transaxle has an electrical prob‐
lem. Continuing to drive your Mazda in this condition could cause damage to your trans‐
axle. Consult an Authorized Mazda Dealer as soon as possible.
(Turns on)
TCS/DSC Indicator Light If the light stays on, the TCS, DSC or the brak
e assist system may have a malfunction and
they may not operate correctly . Take your vehicle to an Authorized Mazda Dealer.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-30*Some models.
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SignalWarning
(Amber)
Mazda Radar Cruise Control with Stop & Go function
(MRCC with Stop & Go function)
Warning Light
*
The warning light turns on if there is a malf unction in the system while the Mazda Radar
Cruise Control with Stop & Go function (MRCC with Stop & Go function) system is on.
Have your vehicle inspected at an Authorized Mazda Dealer.
Blind Spot Monitor ‐
ing (BSM) OFF In ‐
dicator Light
*
A problem in the system may be indicated under the following conditions.
Have your vehicle inspected at an Authorized Mazda Dealer.
The light does not turn on when the ignition is switched ON.The light remains on even wh en the Blind Spot Monitoring (BSM) system can be oper ‐
ated.
The light turns on while driving the vehicle.
NOTE
If the vehicle is driven on a road with less traffic and few vehicles that the radar sensors
can detect, the system may pause (The Blin d Spot Monitoring (BSM) OFF indicator light
in the instrument cluster illuminates). However, it does not indicate a malfunction.
LED Headlight
Warning Light*
This light illuminates if ther e is a malfunction in the LED headlight. Have your vehicle
inspected by an Authorized Mazda Dealer.
▼ Taking Action
Take the appropriate action and verify that the warning light turns off.
Signal
Warning Action to be taken
Low Fuel Warning
Light The light turns on wh
en the remaining fuel
is about 9.0 L (2.3 US gal, 1.9 Imp gal).
NOTE
The light illumination timing may vary be‐
cause fuel inside the fuel tank moves around
according to the driving conditions and the
vehicle posture. Add fuel.
Check Fuel Cap Warn
‐
ing Light If the check fuel cap warning light illumi‐
nates while driving, the fuel-filler cap may
not be installed properly.
Stop the engine and re
install the fuel-filler
cap.
Refer to Refueling on page 3-26.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-33
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NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your investment.
▼Capacities
(Approximate Quantities)
Item
Capacity
Engine oil With oil filter replacement
4.2 L (4.4 US qt, 3.7 Imp qt)
Without oil filter replacement 4.0 L (4.2 US qt, 3.5 Imp qt)
Coolant Manual transaxle
5.5 L (5.8 US qt, 4.8 Imp qt)
Automatic transaxle U.S.A. and Canada
5.8 L (6.1 US qt, 5.1 Imp qt)
Mexico 6.0 L (6.3 US qt, 5.3 Imp qt)
Manual transaxle fluid 1.70 L (1.80 US qt, 1.50 Imp qt)
Automatic transaxle fluid 7.8 L (8.2 US qt, 6.9 Imp qt)
Transfer case oil 0.40 L (0.42 US qt, 0.35 Imp qt)
Rear differential oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Fuel tank FWD
48.0 L (12.7 US gal, 10.6 Imp gal)
AWD 45.0 L (11.9 US gal, 9.90 Imp gal)
Check oil and fluid levels with dipsticks or reservoir gauges.
▼Dimensions
U.S.A. and Canada
Item
Vehicle specification
Overall length 4,275 mm (168.3 in)
Overall width 1,765 mm (69.5 in)
Overall height 1,550 mm (61.0 in)
Front tread 1,525 mm (60.0 in)
Rear tread 1,520 mm (59.8 in)
Wheelbase 2,570 mm (101.2 in)

Mexico
ItemVehicle specification
Overall length 4,275 mm (168.3 in)
Overall width 1,765 mm (69.5 in)
Overall height 1,545 mm (60.8 in)
Front tread 1,525 mm (60.0 in)
Rear tread 1,520 mm (59.8 in)
Specifications
Specifications
9-5
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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
10-4
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