2021 MAZDA MODEL 3 HATCHBACK engine

Specifications
▼ Engine
Item Speci
fication
SKYACTIV -G 2.0 SKYACTIV-G 2.5 SKYACTIV -G 2.5T
Ty p e D O H C-16V in-line, 4-cylinder
Bore × Stroke 83.5 × 91.2 mm (3.29 ×
3.59 in) 89.0 × 100 mm (3.50 × 3.94 in)
Displacement 1,997.6 ml (1,997.6 cc) 2,488.5 ml (2,488.5 cc)
Compression
ratio 13.0 10.5
▼
Electrical System
Item
Classification
Battery
*112V -60Ah/20HR or 12V -65Ah/20HR
Spark-plug num-
ber SKYACTIV
-G 2.0,
SKYACTIV -G 2.5 Mazda Genuine spark
plug
*2PE5R
-18-110 or PE5S -18-110
SKYACTIV -G 2.5T Mazda Genuine spark
plug
*2PY8V
-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 This spark plug provides the SKYACTIV-G engine with optimum performance. Contact 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.
Speci fications
Speci fications
9-4
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▼Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-17.
Coolant FL-22 type
Manual transmission oil Mazda Long Life Gear Oil G7
Automatic transmission fluid Mazda Genuine ATF FZ
Transfer case oil Mazda Long Life Hypoid Gear Oil SG1
Rear di fferential oil Mazda Long Life Hypoid Gear Oil SG1
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your
investment.
▼ Capacities
(Approximate Quantities)
Item
Capacity
Engine oil SKYAC
-
TIV -G 2.0 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)
SKYAC -
TIV -G 2.5 With oil
filter replacement 4.5 L (4.8 US qt, 4.0 Imp qt)
Without oil filter replacement 4.3 L (4.5 US qt, 3.8 Imp qt)
SKYAC -
TIV -G 2.5T With oil
filter replacement 4.8 L (5.1 US qt, 4.2 Imp qt)
Without oil filter replacement 4.6 L (4.9 US qt, 4.0 Imp qt)
Coolant SKYAC
-
TIV -G 2.0 Manual transmission
6.3 L (6.7 US qt, 5.5 Imp qt)
Automatic transmission 6.5 L (6.9 US qt, 5.7 Imp qt)
SKYAC -
TIV -G 2.5 Manual transmission
6.3 L (6.7 US qt, 5.5 Imp qt)
Automatic transmission 6.6 L (7.0 US qt, 5.8 Imp qt)
SKYAC -
TIV -G 2.5T For engine
8.3 L (8.8 US qt, 7.3 Imp qt)
For water-cooled charge air cooler 1.6 L (1.7 US qt, 1.4 Imp qt)
Manual trans-
mission oil SKYACTIV
-G 2.0 1.70 L (1.80 US qt, 1.50 Imp qt)
SKYACTIV -G 2.5 1.65 L (1.74 US qt, 1.45 Imp qt)
Automatic
transmission
fl uid SKYACTIV
-G 2.0 7.6 L (8.0 US qt, 6.7 Imp qt)
SKYAC -
TIV -G 2.5 With Cylinder Deactivation
7.9 L (8.3 US qt, 7.0 Imp qt)
Without Cylinder Deactivation 7.6 L (8.0 US qt, 6.7 Imp qt)
SKYACTIV -G 2.5T 8.0 L (8.5 US qt, 7.0 Imp qt)
Transfer case oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Specifications
Speci fications
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Index
Cruise control switch.......... 4-215
Cruise standby indication (white)/
cruise set indication (green) ..........
......................................... 4-215
Cup Holder.............................. 5-42
Customer Assistance (Canada)..... 8-6
Customer Assistance (Mexico)... 8-10
Customer Assistance (Puerto
Rico).......................................... 8-9
Customer Assistance (U.S.A.)....... 8-2
Cylinder Deactivation................ 4-11
D
Daytime Running Lights............. 4-51
Defogger.................................. 4-58 Mirror.................................. 4-59
Rear window........................ 4-58
Dimensions.................................9-6
Display..................................... 4-12
Distance & Speed Alert (DSA).. 4-108 Indication on display...........4-109
Door Locks............................... 3-11
Door-ajar Warning Beep............ 7-47
Driver Attention Alert (DAA).... 4-109
Driver Monitoring Camera....... 4-214
Driver Monitoring (DM)...........4-111
Drive Selection..........................4-81
Driving In Flooded Area............. 3-49
Driving on Uneven Road............ 3-50
Driving Position Memory........... 2-11
Driving Tips...............................3-44 Automatic transmission......... 4-45
Break-in period.................... 3-44
Driving in flooded area......... 3-49
Driving on uneven road.........3-50
Floor mat............................. 3-46
Hazardous driving.................3-45
Overloading......................... 3-49
Rocking the vehicle...............3-46
Saving fuel and protection of the
environment.........................3-44
Turbocharged vehicles (SKYACTIV -
G 2.5T)................................ 3-50
Winter driving...................... 3-47
Dynamic Stability Control
(DSC)....................................... 4-79 DSC OFF indicator light........ 4-80
DSC OFF switch................... 4-80
TCS/DSC indicator light........4-79
E
Electric Parking Brake (EPB)........ 4-66
Electric Parking Brake (EPB) Warning
Beep.........................................7-45
Emergency StartingPush-starting........................ 7-20
Starting a flooded engine...... 7-20
Emergency Towing Tiedown hooks..................... 7-24
Towing description............... 7-23
Emission Control System............ 3-26
Engine Coolant............................... 6-20
Engine compartment
overview.............................. 6-15
Exhaust gas.......................... 3-26
Hood release....................... 6-13
Oil....................................... 6-17
Starting.................................. 4-5
Essential Information................... 6-2
Event Data Recorder.................. 8-19
Excessive Speed Warning........... 7-47
Exterior Care............................. 6-48 Aluminum wheel
maintenance........................ 6-53
Bright-metal maintenance..... 6-52
Maintaining the finish........... 6-49
Plastic part maintenance....... 6-53
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Index
F
FlasherHazard warning.................... 4-60
Headlights............................4-46
Flat Tire Changing a flat tire................. 7-7
Mounting the spare tire........ 7-12
Removing a flat tire................ 7-8
Floor Mat................................. 3-46
Fluids Brake/Clutch........................6-21
Classi fication.......................... 9-5
Washer................................ 6-22
Foot Brake................................ 4-65
Forward Sensing Camera (FSC) ..........
.............................................. 4-203
Front Camera/Side Cameras/Rear
Camera.................................. 4-213
Front Cross Tra ffic Alert (FCTA) ..........
.............................................. 4-113
Front Cross Traffic Alert (FCTA)
Warning Beep........................... 7-46
Front Radar Sensor.................. 4-207
Front Side Radar Sensor........... 4-209
Fuel Filler lid and cap...................3-27
Requirements....................... 3-25
Tank capacity......................... 9-5
Fuses........................................ 6-40 Panel description.................. 6-43
Replacement........................ 6-40
G
Gauges..................................... 4-12
Glove Compartment..................5-46
H
Hazardous Driving.....................3-45
Hazard Warning Flasher............. 4-60
HeadlightsComing home light...............4-50
Flashing................................4-49
High-low beam.................... 4-49
Leaving home light............... 4-50
Leveling................................4-51
Head Restraint.......................... 2-17
High Beam Control System
(HBC)....................................... 4-90 High Beam Control System (HBC)
indicator light (green)........... 4-91
Hill Launch Assist (HLA)............. 4-75
HomeLink Wireless Control
System...................................... 4-60
Hood Release........................... 6-13
Horn........................................ 4-59
I
If a Warning Light Turns On or
Flashes......................................7-27
If the Active Driving Display Does Not
Operate.................................... 7-50
Ignition Not Switched O ff (STOP)
Warning Beep........................... 7-43
Ignition Switch............................ 4-4
Illuminated Entry System............ 5-41
Immobilizer System................... 3-40
Inside Trunk Release Lever......... 3-24
Inspecting Brake/Clutch Fluid
Level.........................................6-21
Inspecting Coolan t Level............ 6-20
Inspecting Engine Oil Level.........6-19
Inspecting Washer Fluid Level..... 6-22
Instrument Cluster..................... 4-12 Average fuel economy...........4-20
Compass display.................. 4-21
Current fuel economy........... 4-20
Dashboard illumination........ 4-18
Distance-to-empty................4-20
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Index
Engine coolant temperature
gauge...................................4-17
Fuel gauge........................... 4-17
Indication/indicator lights..... 4-25
i-ACTIVSENSE display........... 4-21
Message Display................... 4-22
Message indicated on multi-
information display............... 7-39
Multi-information display...... 4-14
Odometer............................ 4-16
Outside temperature
display................................. 4-19
Speedometer....................... 4-12
Tachometer.......................... 4-13
Trip meter............................ 4-16
Warning indication/warning
lights....................................4-23
Interior Care............................. 6-54 Active driving display
maintenance........................ 6-56
Cleaning the floor mats......... 6-56
Cleaning the window
interiors............................... 6-56
Instrument panel top (Soft pad)
maintenance........................ 6-55
Leather upholstery
maintenance........................ 6-55
Panel maintenance............... 6-56
Plastic part maintenance....... 6-55
Seat belt maintenance.......... 6-54
Upholstery maintenance....... 6-55
Vinyl upholstery
maintenance........................ 6-54
Interior Lights............................ 5-39 Luggage compartment light... 5-39
Map lights............................5-39
Overhead lights.................... 5-39
Trunk light............................ 5-39
i-ACTIVSENSE........................... 4-85 Active safety technology........ 4-85Adaptive Front Lighting System
(AFS)................................... 4-90
Blind Spot Monitoring
(BSM).................................. 4-96
Camera and sensors............. 4-86
Distance & Speed Alert
(DSA)................................ 4-108
Driver Attention Alert
(DAA)................................ 4-109
Driver monitoring camera....4-214
Driver Monitoring (DM)...... 4-111
Forward Sensing Camera
(FSC)................................. 4-203
Front camera/side cameras/rear
camera...............................4-213
Front Cross Traffic Alert
(FCTA)............................... 4-113
Front radar sensor...............4-207
Front side radar sensor........ 4-209
High Beam Control System
(HBC).................................. 4-90
i-ACTIVSENSE OFF Switch..... 4-89
i-ACTIVSENSE status symbol
(warning/risk avoidance support
system)................................ 4-87
Lane Departure Warning System
(LDWS)................................ 4-92
Lane-keep Assist System
(LAS)..................................4-154
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)........... 4-128
Mazda Radar Cruise Control
(MRCC)............................. 4-120
Pre-crash safety technology... 4-86
Rear Cross Tra ffic Alert
(RCTA)............................... 4-116
Rear side radar sensor......... 4-211
Smart Brake Support (SBS)...4-158
Smart Brake Support [Rear
Crossing] (SBS-RC)............. 4-164
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Index
Smart Brake Support [Rear]
(SBS-R).............................. 4-160
Tra ffic Jam Assist (TJA)......... 4-139
Tra ffic Sign Recognition
System (TSR)...................... 4-101
Ultrasonic sensor................ 4-212
360°view monitor...............4-168
i-ACTIV AWD Operation........... 4-83
J
Jack............................................ 7-3
Jump-Starting............................ 7-17
K
Keyless Entry System.................... 3-4
Keys........................................... 3-2 Key suspend function..............3-8
Transmitter............................. 3-5
Key Left-in-luggage Compartment/
Trunk Warning Beep (With the
advanced keyless function)........ 7-44
Key Left-in-vehicle Warning Beep
(With the advanced keyless
function)...................................7-44
Key Removed from Vehicle Warning
Beep.........................................7-43
Key Suspend Function................. 3-8
L
Label Information Chassis number...................... 9-2
Engine number....................... 9-3
Motor vehicle safety standard
label...................................... 9-2
Tire pressure label.................. 9-2
Vehicle emission control
information label.................... 9-2
Ve h i c l e identification
number..................................9-2
Lane Departure Warning sound.. 7-46
Lane Departure Warning System
(LDWS).....................................4-92
Lane-change Signals.................. 4-52
Lane-keep Assist System (LAS) ...........
.............................................. 4-154
Leaving Home Light................... 4-50
Liftgate..................................... 3-19 Luggage compartment.......... 3-22
When liftgate/trunk lid cannot be
opened................................ 7-48
Liftgate Door-lock Switch Inoperable
Warning Beep........................... 7-44
Lights-on Reminder................... 7-42
Light Bulbs Replacement........................ 6-37
Speci fications ......................... 9-9
Low Fuel Warning Beep............. 7-45
Lubricant Quality......................... 9-5
Luggage Compartment.............. 5-47
Luggage Compartment Light...... 5-39
M
Maintenance Information............................ 6-2
Scheduled (Canada)............... 6-6
Scheduled (Mexico)................6-9
Scheduled (U.S.A. and Puerto
Rico)......................................6-4
Manual Transmission Shift
Pattern...................................... 4-33
Map Lights................................ 5-39
Mazda Connect........................ 5-15 Appendix............................. 5-29
Connected Service................5-37
Mazda Connect Basic
Operations........................... 5-19
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function)........................4-128 Close proximity warning...... 4-132
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Index
Display indication............... 4-131
Setting the system...............4-133
Stop hold control............... 4-138
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) System
Warnings.................................. 7-46
Mazda Radar Cruise Control
(MRCC).................................. 4-120 Close proximity warning...... 4-123
Display indication............... 4-122
Setting the system...............4-124
Shift-up/shift-down request
display............................... 4-128
Mazda Radar Cruise Control (MRCC)
System Warnings....................... 7-46
Message Indicated on Multi-
information Display................... 7-39
Meters...................................... 4-12
Mirrors Outside mirrors.................... 3-30
Rearview mirror.................... 3-32
Mirror Defogger........................ 4-59
Moonroof................................. 3-37
Multi-information Display.......... 4-14
O
Outside Mirrors.........................3-30
Overhead Console.................... 5-46
Overhead Lights........................ 5-39
Overheating.............................. 7-21
Overloading.............................. 3-49
Owner Maintenance Closing the hood..................6-14
Engine compartment
overview.............................. 6-15
Key battery replacement........6-31
Opening the hood................ 6-13
Owner maintenance
precautions.......................... 6-12
P
Parking Brake............................ 4-66
Parking Sensor System............. 4-238Parking Sensor OFF Switch... 4-242
Sensor detection range........4-240
Power Steering.......................... 4-84
Power Windows........................ 3-34
R
Rearview Mirror........................ 3-32
Rear Coat Hooks....................... 5-45
Rear Cross Tra ffic Alert (RCTA) ...........
.............................................. 4-116
Rear Cross Traffic Alert (RCTA)
Warning Beep........................... 7-46
Rear Door Child Safety Locks..... 3-19
Rear Side Radar Sensor............ 4-211
Rear View Monitor.................. 4-223 Displayable range on the
screen................................ 4-225
Rear view monitor
operation........................... 4-228
Rear view parking camera
location............................. 4-224
Switching to the rear view monitor
display............................... 4-225
Variance between actual road
conditions and displayed
image................................ 4-235
Viewing the display.............4-226
Rear Window Defogger............. 4-58
Rear Window Washer................ 4-57
Rear Window Wiper.................. 4-57
Recommended Oil.................... 6-17
Recording of Vehicle Data..........8-20
Recreational Towing.................. 3-51
Registering Your Vehicle in A Foreign
Country.................................... 8-16
Replacement
10-7
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Index
Fuse..................................... 6-40
Key battery........................... 6-31
Light bulbs........................... 6-37
Tires.....................................6-35
Wheel.................................. 6-37
Wiper.................................. 6-23
Rocking the Vehicle................... 3-46
S
Safety Defects, Reporting
(Canada).................................. 8-14
Safety Defects, Reporting
(U.S.A.).................................... 8-12
Saving Fuel and Protection of the
Environment............................. 3-44
Scheduled Maintenance Canada.................................. 6-6
Mexico.................................. 6-9
U.S.A. and Puerto Rico........... 6-4
Seats Driver's seat........................... 2-5
Front passenger's seat........... 2-13
Front seat............................... 2-5
Head restraint...................... 2-17
Rear seat.............................. 2-14
Seat warmer......................... 2-20
Seat Belt System Automatic locking................ 2-25
Emergency locking................ 2-25
Extender.............................. 2-30
Pregnant women.................. 2-25
Seat belt precautions............ 2-23
Seat Belt Warning Beep............. 7-42
Security System Immobilizer system............... 3-40
Theft-deterrent system.......... 3-42
Shift Position Warning Beep....... 7-45
Smart Brake Support (SBS)....... 4-158 Collision warning................ 4-159
Stopping the Smart Brake Support
(SBS) system operation........4-160
Smart Brake Support [Rear Crossing]
(SBS- RC).................................4-164
Collision warning................ 4-167
Stopping the Smart Brake Support
[Rear Crossing] (SBS-RC) system
operation........................... 4-168
Smart Brake Support [Rear] (SBS -
R) ........................................... 4-160
Collision warning................ 4-163
Stopping the Smart Brake Support
[Rear] (SBS-R) system
operation........................... 4-163
Spare Tire................................... 7-5
Spare Tire and Tool Storage.......... 7-3
Speci fications
Capacities.............................. 9-5
Dimensions............................ 9-6
Electrical system..................... 9-4
Engine................................... 9-4
Light bulbs............................. 9-9
Lubricant quality..................... 9-5
Tires.....................................9-10
Weights................................. 9-7
SRS Air Bags Driver and front passenger
occupant classification
system................................. 2-70
How the SRS air bags work.... 2-63
Limitations to SRS air bag...... 2-69
Monitoring........................... 2-75
SRS air bag deployment
criteria................................. 2-67
Supplemental restraint system
components......................... 2-61
Supplemental restraint system
(SRS) precautions................. 2-55
Starting the Engine...................... 4-5
Steering Wheel Heated steering wheel.......... 2-21
10-8
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