engine coolant MAZDA MODEL 3 HATCHBACK 2020 (in English) Owner's Manual

Overheating
▼Overheating
If the engine coolant temperature gauge
indicates overheating and the high engine
coolant temperature
warning indication is
displayed, the vehicle loses power or you
hear a loud knocking or pinging noise, the
engine is probably too hot.
WA R N I N G
Pull over to a safe location, then switch
the ignition off and make sure the fan is
not running before attempting to work
near the cooling fan:
Working near the cooling fan when it is
running is dangerous. The fan could
continue running indefinitely even if the
engine has stopped and the engine
compartment temperature is high. You
could be hit by the fan and seriously
injured.
Do not remove either cooling
system cap when the engine and radiator
are hot:
When the engine and radiator are hot,
scalding coolant and steam may shoot out
under pressure and cause serious injury.
Open the hood ONLY after steam is no
longer escaping from the engine:
Steam from an overheated engine is
dangerous. The escaping steam could
seriously burn you.
If the engine coolant temperature gauge
indicates overheating and the high engine
coolant temperature warning indication is
displayed:

1. Drive safely to the side of the road and park off the right-of-way.
2. Put a vehicle with an automatic
transmission in park (P), a manual
transmission in neutral.
3. Apply the parking brake.
4. Turn off the air conditioner.
5. Check whether coolant or steam is escaping from the engine
compartment.

If steam is coming from the engine
compartment:
Do not go near the front of the vehicle.
Stop the engine.
Wait until the steam dissipates, then
open the hood and start the engine.

If neither coolant nor steam is
escaping:
Open the hood and idle the engine
until it cools.
CAUTION
If the cooling fan does not operate
while the engine is running, the engine
temperature will increase. Stop the
engine and call an Authorized Mazda
Dealer.
If Trouble Arises
Overheating
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6. Make sure the cooling fan is operating,then turn off the engine after the
temperature has decreased.
7. When cool, check the coolant level. If it is low, look for coolant leaks from
the radiator and hoses.

If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
1. Cooling system cap
2. Cooling fan
3. Coolant reservoir

If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
6-17).
CAUTION
If the engine continues to overheat or
frequently overheats, have the cooling
system inspected. The engine could be
seriously damaged unless repairs are
made. Consult an Authorized Mazda
Dealer.
If Trouble Arises
Overheating
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2. Turn off the engine and wait 5 minutesfor the oil to drain back into the oil
pan.
3. Inspect the engine oil level (page 6-16). If it's low, add the appropriate
amount of engine oil while being
careful not to overfill.
CAUTION
Do not run the engine if the oil level is
low. Otherwise, it could result in
extensive engine damage.
4. Start the engine and check the warning light.

If the light remains illuminated even
though the oil level is normal or after
adding oil, stop the engine immediately
and have your vehicle towed to an
Authorized Mazda Dealer.
▼ High Engine Coolant Temperature
Warning Indication
Displays if the engine coolant temperature
has increased excessively.
“Elevated Engine Coolant Temp. Drive
Slowly” displayed
Drive slowly to redu
ce engine load until
you can find a safe place to stop the
vehicle and wait for the engine to cool
down.
“Excessive Engine Coolant Temp. Stop
the Vehicle in a Safe Location”
displayed
This indicates the possibility of
overheating. Park the vehicle in a safe
place immediately and stop the engine.
Refer to Overheati ng on page 7-21.
CAUTION
Do not drive the vehicle with the high
engine coolant temperature warning light
illuminated. Otherwise, it could result in
damage to the engine.
▼Power Steering Malfunction
Indication/Indicator Light
The message is displayed if the electric
power steering has a malfunction.
If the message is displayed, stop the
vehicle in a safe place and do not operate
the steering wheel. Contact an Authorized
Mazda Dealer if the message is displayed
continuously.
NOTE
If the message is displayed, the power
steering will not operate normally. In
this case, the steering wheel can still be
operated, however, the operation may
feel heavy compared to normal, or the
steering wheel could vibrate when
turning.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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The Electric Parking Brake (EPB)
switch is pulled while the vehicle is
driven.
You attempt to start driving the vehicle
while the conditions for releasing the
Electric Parking Brake (EPB)
automatically have not been met.
▼AUTOHOLD Warning Beep
Warning light flashes/message is displayed
and beep sound is activated
simultaneously for about 5 seconds when
using AUTOHOLD function or when
AUTOHOLD switc
h is operated.
Because a problem with AUTOHOLD
function has occurred, AUTOHOLD
function does not operate even if
AUTOHOLD switc h is operated.

If the warning light flashes/message is
displayed and the beep sound is activated
simultaneously, have your vehicle
inspected at an Authorized Mazda Dealer.
▼ Vehicle Problem Warning Beep
If any of the
following problems occur, a
warning beep is activated. Check the
information regarding the warning
indication in the inst rument cluster or on
the center display.
Automatic transmission problem
Increase in automatic transmission
internal temperature
Brake fluid amount decrease
Engine oil level sensor problem
Electric Parking Brake (EPB) problem
Engine hydraulic p ressure decrease
Engine coolant temperature increase
Engine system problem
▼Blind Spot Monitoring (BSM)
System Warning Beep*
The Blind Spot Monitoring (BSM)
warning beep operates when the turn
signal lever is operated to the side where
the Blind Spot Monitoring (BSM) warning
light is illuminated.
▼Front Cross Traffic Alert (FCTA)
Warning Beep*
The Front Cross Tr
affic Alert (FCTA)
warning beep is activated if there is a
possibility of collision with a vehicle
approaching from the front on the left and
right sides of the vehicle.
▼ Rear Cross Traffic Alert (RCTA)
Warning Beep*
The Rear Cross Traffic Alert (RCTA)
warning beep is activated if there is a
possibility of collision with a vehicle
approaching from behind and from the
rear on the left and right sides of the
vehicle.
▼
Lane Departure Warning Sound*
While the system is operating, if the
system determines that the vehicle may
depart from the lane, it sounds a warning
sound.
NOTE
The volume of the Lane Departure
Warning System (LDWS) warning sound
can be changed.
Refer to the Settings section in the Mazda
Connect Owner's Manual.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-44*Some models.
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Specifications
▼Engine
Item Specification
SKYACTIV-G 2.0 SKYACTIV-G 2.5
Type DOHC-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
▼Electrical System
Item
Classification
Battery 12V-60Ah/20HR or 12V-65Ah/20HR
Spark-plug number Mazda Genuine spark plug
*1PE5R-18-110 or PE5S-18-110
*1 This spark plug provides the SK YACTIV-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.
▼ Lubricant Quality
Lubricant
Classification
Engine oil Refer to Recommended Oil on page 6-15.
Coolant FL-22 type
Manual transmission oil Mazda Long Life Gear Oil G7
Automatic transmission f luid 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/Clutch fluid SAE J1703 or FMVSS116 DOT-3
NOTE
Refer to Introduction on (page 6-2) for owner's responsibility in protecting your investment.
Specifications
Specifications
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▼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)
Coolant Manual transmission
6.3 L (6.7 US qt, 5.5 Imp qt)
Automatic
transmission SKYACTIV-G 2.0
6.5 L (6.9 US qt, 5.7 Imp qt)
SKYACTIV-G 2.5 6.6 L (7.0 US qt, 5.8 Imp qt)
Manual transmis‐
sion 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 trans‐
mission fluid SKYACTIV-G 2.0
7.6 L (8.0 US qt, 6.7 Imp qt)
SKYAC‐
TIV-G 2.5 U.S.A. and
CanadaWith Cylinder Deactiva‐
tion
7.9 L (8.3 US qt, 7.0 Imp qt)
Without Cylinder Deacti‐
vation 7.6 L (8.0 US qt, 6.7 Imp qt)
Mexico 7.6 L (8.0 US qt, 6.7 Imp qt)
Transfer case oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Rear differential oil 0.35 L (0.37 US qt, 0.31 Imp qt)
Fuel tank U.S.A. and
CanadaFWD
50.0 L (13.2 US gal, 11.0 Imp gal)
AWD 48.0 L (12.7 US gal, 10.6 Imp gal)
Mexico 51.0 L (13.5 US gal, 11.2 Imp gal)
Check oil and fluid levels with dipsticks or reservoir gauges.
Specifications
Specifications
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Index
Cruise Control................................. 4-212Cruise control switc h.................4-212
Cruise standby indication (white)/
cruise set indication (green)...... 4-212
Cup Holder........................................ 5-38
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................... 4-49
Defogger........... ................................. 4-56
Mirror...........................................4-57
Rear window........... .................... 4-56
Dimensions.......................................... 9-6
Display.............................................. 4-12
Distance & Speed Alert (DSA)....... 4-106 Indication on display................. 4-107
Door Locks........................................ 3-11
Door-ajar Warning Beep................... 7-45
Driver Attention Aler t (DAA).........4-107
Driver Monitoring Cam era..............4-211
Driver Monitoring (DM)................. 4-109
Drive Selection..................................4-79
Driving In Flooded Ar ea...................3-49
Driving on Uneven Road.................. 3-50
Driving Position Memo ry................. 2-10
Driving Tips...................................... 3-44 Automatic transmission............... 4-43
Break-in period............................ 3-44
Driving in flooded a rea............... 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
Winter driving............................. 3-47
Dynamic Stability Control (DSC)..... 4-77 DSC OFF indicator light............. 4-78
DSC OFF switch......................... 4-78
TCS/DSC indicator light............. 4-77
E
Electric Parking Brak e (EPB)........... 4-64
Electric Parking Brake (EPB) Warning
Beep...................................................7-43
Emergency Starting Push-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.........................................6-17
Engine compartment overview.... 6-14
Exhaust gas..................................3-26
Hood release................................ 6-12
Oil................................................ 6-15
Starting...........................................4-5
Essential Information.......................... 6-2
Event Data Recorder......................... 8-19
Excessive Speed Warning................. 7-45
Exterior Care..................................... 6-44 Aluminum wheel maintenance.... 6-49
Bright-metal maint enance........... 6-48
Maintaining the fini sh................. 6-45
Plastic part maintenance.............. 6-49
F
Flasher
Hazard warning........................... 4-58
Headlights.................................... 4-44
Flat Tire
Changing a flat tire........................7-7
Mounting the spare tire............... 7-12
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Index
Removing a flat tire...................... 7-8
Floor Mat.......................................... 3-46
Fluids Brake/Clutch................................ 6-19
Classification................................. 9-4
Washer......................................... 6-19
Foot Brake.........................................4-63
Forward Sensing Camera (FSC)..... 4-200
Front Camera/Side Cameras/Rear
Camera............................................ 4-210
Front Cross Traffic Alert (FCTA)....4-111
Front Cross Traffic Alert (FCTA)
Warning Beep.................................... 7-44
Front Radar Sensor...... ................... 4-204
Front Side Radar Sensor................. 4-206
Fuel
Filler lid and cap......................... 3-27
Requirements............................... 3-25
Tank capacity.................................9-5
Fuses.................................................. 6-38 Panel description......................... 6-40
Replacement................................ 6-38
G
Gauges............................................... 4-12
Glove Compartment.......................... 5-42
H
Hazardous Driving............................ 3-45
Hazard Warning Flasher....................4-58
HeadlightsComing home light......................4-48
Flashing....................................... 4-47
High-low beam............................ 4-47
Leaving home light..................... 4-48
Leveling....................................... 4-49
Head Restraint................................... 2-17
High Beam Control System
(HBC)................................................ 4-88
High Beam Control System (HBC)
indicator light (green)..................4-89
Hill Launch Assist (HL A)................ 4-73
HomeLink Wireless Control
System............................................... 4-58
Hood Release............. ....................... 6-12
Horn...................................................4-57
I
If a Warning Light Turns On or
Flashes............................................... 7-27
If the Active Driving Display Does Not
Operate.............................................. 7-48
Ignition Not Switched Off (STOP)
Warning Beep.................................... 7-42
Ignition Switch.................................... 4-4
Illuminated Entry System................. 5-36
Immobilizer System..... ..................... 3-40
Inside Trunk Release Lever.............. 3-23
Inspecting Brake/Clutch Fluid
Level.................................................. 6-19
Inspecting Coolant Level.................. 6-17
Inspecting Engine Oil Level............. 6-16
Inspecting Washer Fluid Level......... 6-19
Instrument Cluster............................. 4-12 Average fuel econom y.................4-20
Compass display.......................... 4-21
Current fuel economy. .................4-20
Dashboard illuminati on............... 4-18
Distance-to-empty... .................... 4-20
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......................7-38
Multi-information display........... 4-14
Odometer..................................... 4-16
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