2020 MAZDA MODEL CX-30 overheating

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.
WARNING
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.
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 Trouble Arises
Overheating
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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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4. Start the engine and check thewarning 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 Indicat 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 7-17.
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 off
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
Close proximity warning...... 4-117
Display indication............... 4-116
Setting the system...............4-118
Shift-up/shift-down request
display............................... 4-121
Mazda Radar Cruise Control (MRCC)
System Warnings....................... 7-39
Message Indicated on Multi-
information Display................... 7-33
Meters...................................... 4-11
Mirrors Outside mirrors.................... 3-33
Rearview mirror.................... 3-34
Mirror Defogger........................ 4-54
Moonroof................................. 3-40
Multi-information Display.......... 4-13
O
Off-Road Traction Assist............ 4-75 Off-Road Traction Assist
indicator light....................... 4-75
Off-Road Traction
Assist switch......................... 4-75
Outside Mirrors.........................3-33
Overhead Console.................... 5-41
Overhead Lights........................ 5-35
Overheating.............................. 7-17
Overloading.............................. 3-53
Owner Maintenance Closing the hood..................6-13
Engine compartment
overview.............................. 6-14
Key battery replacement........6-26
Opening the hood................ 6-12
Owner maintenance
precautions.......................... 6-11
P
Parking Brake............................ 4-60
Parking Sensor System............. 4-222
Park assist sensor system
operation........................... 4-225
Sensor detection range........4-224
Power Liftgate........................... 3-21
Power Liftgate Warning Beep...... 7-38
Power Steering.......................... 4-81
Power Windows........................ 3-37
R
Rearview Mirror........................ 3-34
Rear Coat Hooks....................... 5-40
Rear Cross Traffic Alert (RCTA) ...........
.............................................. 4-111
Rear Cross Traffic Alert (RCTA)
Warning Beep........................... 7-39
Rear Door Child Safety Locks..... 3-18
Rear Side Radar Sensor............ 4-197
Rear View Monitor.................. 4-208 Displayable range on the
screen................................ 4-210
Rear view monitor
operation........................... 4-212
Rear view parking camera
location............................. 4-209
Switching to the rear view monitor
display............................... 4-209
Variance between actual road
conditions and displayed
image................................ 4-219
Viewing the display.............4-211
Rear Window Defogger............. 4-53
Rear Window Washer................ 4-52
Rear Window Wiper.................. 4-52
Recommended Oil.................... 6-15
Recording of Vehicle Data..........8-19
Recreational Towing.................. 3-54
Registering Your Vehicle in A Foreign
Country.................................... 8-15
Replacement Fuse..................................... 6-32
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Index
Storage Compartments.............. 5-41Center console..................... 5-42
Glove compartment..............5-41
Luggage compartment.......... 5-42
Overhead console................ 5-41
Storage pocket..................... 5-41
Storage Pocket.......................... 5-41
Sunshade.................................. 3-42
Sunvisors.................................. 5-34
T
Theft-Deterrent System.............. 3-45
Three-flash Turn Signal...............4-48
Tiedown Hook.......................... 7-20
Tires......................................... 6-28 Replacing a tire.................... 6-30
Replacing a wheel................ 6-31
Snow tires............................ 3-51
Specifications......................... 9-7
Temporary spare tire............. 6-30
Tire chains............................3-51
Tire inflation pressure............6-28
Tire rotation......................... 6-29
Uniform tire quality grading
system (UTQGS)................... 8-20
Tire Information Location of the tire label
(placard).............................. 8-25
Steps for determining the correct
load limit............................. 8-32
Tire labeling......................... 8-22
Tire maintenance.................. 8-27
Vehicle loading.....................8-29
Tire Pressure Monitoring
System.................................... 4-205
Touch Sensor Inoperable Warning
Beep (With the advanced keyless
function)...................................7-37
To w i n g Recreational towing.............. 3-54
Trailer towing....................... 3-54
Towing Description................... 7-19
Traction Control System (TCS).... 4-72 TCS OFF Indicator Light......... 4-72
TCS OFF switch.................... 4-73
TCS/DSC indicator light........4-72
Tra ffi c Jam Assist (TJA).............. 4-132
Close proximity warning...... 4-137
Display indication............... 4-136
Setting the system...............4-138
Shift-up/shift-down request
display............................... 4-144
Stop hold control............... 4-144
Tra ffi c Sign Recognition System
(TSR)........................................ 4-97
Trouble Battery runs out.................... 7-13
Emergency starting................7-16
Flat tire.................................. 7-5
Overheating......................... 7-17
Parking in an emergency......... 7-2
When liftgate cannot be
opened................................ 7-41
Turn and Lane-Change Signals.... 4-47
Turn Signals.............................. 4-47
U
Ultrasonic Sensor.................... 4-199
V
Vehicle Information Labels 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 i d e n t i fi c a t i o n
number..................................9-2
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