engine coolant MAZDA MODEL 3 HATCHBACK 2021 Owner's Manual

6. Make sure the cooling fan isoperating, then turn o ff 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.
SKYACTIV -G 2.0 and SKYACTIV -G
2.5
1. Cooling system cap
2. Cooling fan
3. Coolant reservoir

SKYACTIV -G 2.5T
1. Coolant reservoir
2. Cooling fan
3. Cooling system cap

If you
find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required
(page 6-20).
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
7-22
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

3. Inspect the engine oil level (page6-19). If it's low, add the
appropriate amount of engine oil
while being careful not to over fill.
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
War n in g I nd ic at ion
Displays if the engine coolant
temperature has increased excessively.
“Elevated Engine Coolant Temp. Drive
Slowly” displayed
Drive slowly to reduce 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 Overheating 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. There is no
problem if the indication turns o
ff
when the engine is restarted after
some time has passed. If the indication
displays even after the engine is
restarted, 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.
Repeatedly jerking the steering
wheel left and right while the vehicle
is stopped or moving extremely
slowly will cause the power steering
system to go into protective mode
which will make the steering feel
heavy, but this does not indicate a
problem. If this occurs, park the
vehicle safely and wait several
minutes for the system to return to
normal.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-29
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

▼Low Fuel Warning Beep
When the low fuel warning light
fl
ashes, a warning beep is activated
once at the same time.
▼ Brake Override Warning Beep
A warning beep is activated when the
accelerator pedal and brake pedal are
depressed at the same time while
driving. Only depress the brake pedal.
▼Shift Position Warning Beep
A sound is activated when the push
button start is pressed while the
selector lever is in a position other
than P, and the ignition is switched to
ACC. Check the selector lever
position.
▼Electric Parking Brake (EPB)
War n in g Be ep
The warning buzzer is activated under
the following conditions:
The vehicle is driven with the parking
brake applied.
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 switch is operated.
Because a problem with AUTOHOLD
function has occurred, AUTOHOLD
function does not operate even if
AUTOHOLD switch 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 instrument 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 pressure decreaseEngine coolant temperature increaseEngine system problem
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-45
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34

▼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
9-5
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

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
10-3
Mazda3_8JM2-EA -20H_Edition1_new 2020-7-10 17:21:34

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
10-5
Mazda3_8JM2-EA
-20H_Edition1_new 2020-7-10 17:21:34