coolant temperature MAZDA MAZDA 2023 User Guide

▼Aluminum Wheel Maintenance*
A protective coating is provided over
the aluminum wheels. Special care is
needed to protect this coating.
CAUTION
Do not use any detergent other than
mild detergent. Before using any
detergent, verify the ingredients.
Otherwise, the product could discolor
or stain the aluminum wheels.
NOTE
Do not use a wire brush or any
abrasive cleaner, polishing
compound, or solvent on aluminum
wheels. They may damage the
coating.
Always use a sponge or soft cloth to
clean the wheels.
Rinse the wheels thoroughly with
lukewarm or cold water. Also, be
sure to clean the wheels after driving
on dusty or salted roads to help
prevent corrosion.
Avoid washing your vehicle in an
automatic car wash that uses
high-speed or hard brushes.
▼ Plastic Part Maintenance
When cleaning the plastic lenses of
the lights, do not use gasoline,
kerosene, rectified spirit, paint,
thinner, highly acidic detergents, or
strongly alkaline detergents.
Otherwise, these chemical agents
can discolor or damage the surfaces
resulting in a significant loss in
functionality. If plastic parts become
inadvertently exposed to any of these
chemical agents, flush with water
immediately.
If plastic parts such as the bumpers
become inadvertently exposed to
chemical agents or fluids such as
gasoline, oil, engine coolant, or
battery fluid, it could cause
discoloration, staining, or paint
peeling. Wipe off any such chemical
agents or fluids using a soft cloth
immediately.
High water temperature and high
water pressure car washers are
available depending on the type of
high pressure car washer device. If
the car washer nozzle is put too
close to the vehicle or aimed at one
area for an extended period of time,
it could deform plastic parts or
damage the paint.
Do not use wax containing
compounds (polish). Otherwise, it
could result in paint damage.
In addition, do not use an electrical
or air tool to apply wax. Otherwise,
the frictional heat generated could
result in deformation of plastic parts
or paint damage.
Maintenance and Care
Appearance Care
6-52*Some models.
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10

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.
If Trouble Arises
Overheating
7-21
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

6. Make sure the cooling fan isoperating, 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.
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 6-19).
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_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10

If the light illuminates or the warning
indication is displayed while driving:
1. Drive to the side of the road andpark off the right-of-way on level
ground.
2. Turn off the engine and wait 5 minutes for the oil to drain back
into the oil pan.
3. Inspect the engine oil level (page 6-18). 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
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 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.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-29
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10

▼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
M Hybrid problem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
▼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
Tra ffi c Alert (FCTA)
War n in g Be ep*
The Front Cross Traffic 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)
War n in g Be ep*
The Rear Cross Traffic Alert (RCTA)
warning beep is activated if there is a
possibility of collision with a vehicle
approaching 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.
▼Mazda Radar Cruise Control
(MRCC) System Warnings*
The Mazda Radar Cruise Control
(MRCC) system warnings notify the
driver of system malfunctions and
cautions on use when required.
Check based on the beep sound.
Warning beep type Notification content
The beep sounds 1
time while the Mazda
Radar Cruise Control
(MRCC) is operating The vehicle speed is
slower than 25 km/h
(16 mph) and the
Mazda Radar Cruise
Control (MRCC) sys-
tem has been can-
celed.
The beep sounds in-
termittently while the
Mazda Radar Cruse
Control (MRCC) is op-
erating. The distance between
your vehicle and the
vehicle ahead is too
close. Check the safety
of the surrounding
area and reduce vehi-
cle speed.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-47
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10

Index
Distance-to-empty................4-26
Engine coolant temperature
gauge...................................4-23
Fuel gauge........................... 4-23
Indication/indicator lights..... 4-31
i-ACTIVSENSE display........... 4-27
Message Display................... 4-28
Message indicated on multi-
information display............... 7-40
Multi-information display...... 4-20
Odometer............................ 4-22
Outside temperature
display................................. 4-25
Speedometer....................... 4-18
Tachometer.......................... 4-19
Trip meter............................ 4-22
Warning indication/warning
lights....................................4-29
Interior Care............................. 6-53 Active driving display
maintenance........................ 6-55
Cleaning the floor mats......... 6-55
Cleaning the window
interiors............................... 6-55
Instrument panel top (Soft pad)
maintenance........................ 6-54
Leather upholstery
maintenance........................ 6-54
Panel maintenance............... 6-55
Plastic part maintenance....... 6-54
Seat belt maintenance.......... 6-53
Upholstery maintenance....... 6-54
Vinyl upholstery
maintenance........................ 6-53
Interior Lights............................ 5-40 Luggage compartment light... 5-40
Map lights............................5-40
Overhead lights.................... 5-40
Trunk light............................ 5-40
i-ACTIVSENSE........................... 4-96 Active safety technology........ 4-96Adaptive Front Lighting System
(AFS)................................. 4-101
Blind Spot Monitoring
(BSM)................................ 4-107
Camera and sensors............. 4-97
Distance & Speed Alert
(DSA)................................ 4-118
Driver Attention Alert
(DAA)................................ 4-119
Driver monitoring camera....4-222
Driver Monitoring (DM)...... 4-121
Forward Sensing Camera
(FSC)................................. 4-211
Front camera/side cameras/rear
camera...............................4-221
Front Cross Tra ffi c Alert
(FCTA)............................... 4-123
Front radar sensor...............4-215
Front side radar sensor........ 4-218
High Beam Control System
(HBC)................................ 4-101
i-ACTIVSENSE OFF Switch... 4-100
i-ACTIVSENSE status symbol
(warning/risk avoidance support
system)................................ 4-98
Lane Departure Warning System
(LDWS).............................. 4-103
Lane-keep Assist System
(LAS)..................................4-164
Mazda Radar Cruise Control with
Stop & Go function (MRCC with
Stop & Go function)........... 4-139
Mazda Radar Cruise Control
(MRCC)............................. 4-130
Pre-crash safety technology... 4-97
Rear Cross Traffic Alert
(RCTA)............................... 4-126
Rear side radar sensor......... 4-219
Smart Brake Support (SBS)...4-168
Tra ffi c Jam Assist (TJA)......... 4-150
10-5
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10