2021 MAZDA MODEL 3 HATCHBACK overheating

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
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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
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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
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Index
Horn.................................... 4-59
Storage Compartments.............. 5-45 Center console..................... 5-46
Glove compartment..............5-46
Overhead console................ 5-46
Storage pocket..................... 5-46
Storage Pocket.......................... 5-46
Sunshade.................................. 3-39
Sunvisors.................................. 5-38
T
Theft-Deterrent System.............. 3-42
Three- flash Turn Signal...............4-52
Tiedown Hook.......................... 7-24
Tires......................................... 6-33 Replacing a tire.................... 6-35
Replacing a wheel................ 6-37
Snow tires............................ 3-47
Speci fications....................... 9-10
Temporary spare tire............. 6-36
Tire chains............................3-48
Tire in flation pressure............6-34
Tire rotation......................... 6-34
Uniform tire quality grading
system (UTQGS)................... 8-21
Tire Information Location of the tire label
(placard).............................. 8-27
Steps for determining the correct
load limit............................. 8-34
Tire labeling......................... 8-23
Tire maintenance.................. 8-29
Vehicle loading.....................8-31
Tire Pressure Monitoring
System.................................... 4-219
Touch Sensor Inoperable Warning
Beep (With the advanced keyless
function)...................................7-44
To w i n g Recreational towing.............. 3-51
Trailer towing....................... 3-51
Towing Description................... 7-23
Traction Control System (TCS).... 4-78 TCS/DSC indicator light........4-78
Tra ffic Jam Assist (TJA).............. 4-139
Close proximity warning...... 4-145
Display indication............... 4-143
Setting the system...............4-146
Shift-up/shift-down request
display............................... 4-153
Stop hold control............... 4-153
Tra ffic Sign Recognition System
(TSR)...................................... 4-101
Trouble Battery runs out.................... 7-17
Emergency starting................7-20
Flat tire.................................. 7-7
Overheating......................... 7-21
Parking in an emergency......... 7-2
When liftgate/trunk lid cannot be
opened................................ 7-48
Trunk Lid...................................3-19 Inside trunk release lever....... 3-24
When liftgate/trunk lid cannot be
opened................................ 7-48
Trunk Light................................ 5-39
Turn and Lane-Change Signals.... 4-52
Turn Signals.............................. 4-52
U
Ultrasonic Sensor.................... 4-212
V
Vehicle Information Labels Chassis number...................... 9-2
Engine number....................... 9-3
Motor vehicle safety standard
label...................................... 9-2
Tire pressure label.................. 9-2
10-9
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