2018 MAZDA MODEL 3 4-DOOR overheating

Do not install two floor mats, one on top of
the other, on the driver's side:
Installing two floor mats, one on top of the
other, on the driver's side is dangerous as
the retention pins can only keep one floor
mat from sliding forward.
Loose floor mat(s) will interfere with the
foot pedals and could result in an accident.
If using an all-weather mat for winter use
always remove the original floor mat.
When setting a floor mat, position the
floor mat so that its grommets or retainers
are inserted over the pointed end of the
retention posts.
Rocking the Vehicle
WA R N I N G
Do not spin the wheels at more than 56
km/h (35 mph), and do not allow anyone
to stand behind a wheel when pushing the
vehic le:
When the vehicle is stuck, spinning the
wheels at high speed is dangerous. The
spinning tire could overheat and explode.
This could cause serious injuries.
CAUTION
Too much rocking may cause engine
overheating, transaxle failure, and tire
damage.
If you must rock the vehicle to free it from
snow, sand or mud, depress the accelerator
slightly and slowly move the shift lever/
selector lever from 1 (D) to R.
Before Driving
Driving Tips
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Driving Tips
WA R N I N G
Do not let the vehicle move in a direction
opposite to the direction selected by the
selector lever:
Do not let the vehicle move backward with
the selector lever in a forward position, or
do not let the vehicle move forward with
the selector lever in the reverse position.
Otherwise, the engine may stop, causing
the loss of the power brake and power
steering functions, and make it difficult to
control the vehicle which could result in an
accident.
Passing
For extra power when passing another
vehicle or climbing steep grades, depress
the accelerator fully. The transaxle will
shift to a lower gear, depending on vehicle
speed.
NOTE
(Some models)
The accelerator pedal may initially feel
heavy as it is being depressed, then feel
lighter as it is depressed further. This
change in pedal force aids the engine
control system in determining how much
the accelerator pedal has been
depressed for performing kickdown, and
functions to control whether or not
kickdown should be performed.
While the selector lever is in the M
position and the DSC is turned off,
manual shift mode does not switch to
automatic shift mode even if the
accelerator pedal is completely
depressed. Operate the selector lever.
Climbing steep gra des from a stop
To climb a steep grade from a stopped
position:
1. Depress the brake pedal.
2. Shift to D or M1, depending on the load weight and grade steepness.
3. Release the brake pedal while gradually accelerating.
Descending steep grades
When descending a steep grade, shift to
lower gears, depending on load weight and
grade steepness. Descend slowly, using the
brakes only occasionally to prevent them
from overheating.
When Driving
Automatic Transaxle
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NOTE
To program the remaining two HomeLink
buttons, begin with “Programming”―
step 1
For questions or comments, please contact
HomeLink at www.homelink.com or
1-800-355-3515 .
▼Gate operator/Canadian
Programming
Canadian radio-frequency laws require
transmitter signals to “time-out” (or quit)
after several seconds of transmission ―
which may not be long enough for
HomeLink to pick up the signal during
programming. Simila
r to this Canadian
law, some U.S. gate ope rators are designed
to “time-out” in the same manner.

If you live in Canada or you are having
difficulties progra mming a gate operator
by using the “Programming” procedures
(regardless of where you live), replace
“Programming HomeLink” step 3 with
the following:
NOTE
If programming a garage door opener or
gate operator, it is advised to unplug the
device during the “cycling” process to
prevent possible overheating.
Continue to press and hold the HomeLink
button while you press and release ―
every two seconds (“cycle”) your
hand-held transmitter until the frequency
signal has successfully been accepted by
HomeLink. (The indicator light will flash
slowly and then rapidly.)
Proceed with “Programming” step 4 to
complete.
▼ Operating the HomeLink System
Press the programmed HomeLink button
to operate a programmed device. The code
will continue being transmitted for a
maximum of 20 seconds.
▼Reprogramming the HomeLink
system
To program a device to HomeLink using a
HomeLink button previously trained,
follow these steps:
1. Press and hold the desired HomeLink
button. DO NOT release the button.
2. The indicator light will begin to flash after 20 seconds. Without releasing the
HomeLink button, proceed with
“Programming” - step 1.
▼Erasing Programmed HomeLink
Buttons
To erase the existing programming from
all three operating
channels, press and
hold the two outside buttons (
, ) on
the auto-dimming mirror until the
HomeLink indicator light begins to flash
after approximately 10 seconds.
Verify that the programming has been
erased when you re sell the vehicle.
When Driving
Switches and Controls
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CAUTION
If the air conditioner is used while driving
up long hills or in heavy traffic, monitor the
high engine coolant temperature warning
light to see if it is illuminated or flashing
(page 4-23).
The air conditioner may cause engine
overheating. If the warning light is
illuminated or flashing, turn the air
conditioner off (page 7-20).
NOTE
When maximum cooling is desired, set
the temperature control dial to the
extreme cold position and set the air
intake selector to the recirculated air
position, then turn the fan control dial
fully clockwise.
If warmer air is desired at floor level,
set the mode selector dial at the
position and adjust the temperature
control dial to maintain maximum
comfort.
The air to the floor is warmer than air
to the face (except wh en the temperature
control dial is set at the extreme hot or
cold position).
▼ Ventilation
1. Set the mode sel
ector dial to the
position.
2. Set the air intake selector to the outside air position.
3. Set the temperature control dial to the
desired position.
4. Set the fan control dial to the desired speed.
▼Windshield Defrosting and
Defogging
1. Set the mode selector dial to the
position.
2. Set the temperature control dial to the desired position.
3. Set the fan control dial to the desired speed.
4. If dehumidified heating is desired, turn
on the air conditioner.
WA R N I N G
Do not defog the windshield using the
position with the temperature control set to
the cold position:
Using the
position with the temperature
control set to the cold position is dangerous
as it will cause the outside of the
windshield to fog up. Your vision will be
hampered, which could lead to a serious
accident. Set the temperature control to the
hot or warm position when using the
position.
NOTE
For maximum defrosting, turn on the air
conditioner, set the temperature control
dial to the extreme hot position, and turn
the fan control dial fully clockwise.
If warm air is desired at the floor, set the
mode selector dial to the
position.
In the or position, the air
conditioner is automatically turned on
and the outside air position is
automatically selected to defrost the
windshield. In the
or position, the
outside air position cannot be changed
to the recirculated air position.
Interior Features
Climate Control System
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7If Trouble Arises
Helpful information on what to do if a problem arises with the vehicle.
Parking in an Emergency................. 7-2 Parking in an Emergency..............7-2
Flat Tire.............................................. 7-3 Spare Tire and Tool Storage......... 7-3
Changing a Flat Tire..................... 7-6
Battery Runs Out............................ 7-16 Jump-Starting............................. 7-16
Emergency Starting.........................7-19 Starting a Flooded Engine.......... 7-19
Push-Starting.............................. 7-19
Overheating......................................7-20 Overheating................................ 7-20
Emergency Towing.......................... 7-22 Towing Description.................... 7-22
Tiedown Hooks
*......................... 7-23
Warning/Indicator Lights and
Warning Sounds.............................. 7-25If a Warning Light Turns On or
Flashes........................................ 7-25
Message Indicated on Display
*..........
.................................................... 7-36
Warning Sound is Activated....... 7-38
When Liftgate/Trunk Lid Cannot be
Opened..............................................7-43 When Liftgate/Trunk Lid Cannot be
Opened........................................7-43
Active Driving Display Does Not
Operate
*........................................... 7-45
If the Active Driving Display Does
Not Operate................................ 7-45
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Overheating
If the high engine coolant temperature
warning light turns on, 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 high engine coolant temperature
warning light turns on:

1. Drive safely to the side of the road and
park off the right-of-way.
2. Put a vehicle with an automatic transaxle in park (P), a manual
transaxle 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 it is low, look for coolant leaks from
the radiator and hoses.

If Trouble Arises
Overheating
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If you find a leak or other damage, or if
coolant is still leaking:
Stop the engine and call an Authorized
Mazda Dealer.
Cooling system cap
Coolant reservoir
Cooling fan
If you find no problems, the engine is
cool, and no leaks are obvious:
Carefully add coolant as required (page
6-25).
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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SignalWarning
Charging System Warn-
ing Light If the warning light illuminates
while driving, it indicates a malfunction of the alter-
nator or of the charging system.
Drive to the side of the road and park off the right-of-way. Co nsult an Authorized
Mazda Dealer.CAUTION
Do not continue driving when the charging system warning light is illuminated be‐
cause the engine could stop unexpectedly.
Engine Oil Warning Light This warning light indicates
low engine oil pressure.
CAUTION
Do not run the engine if the oil pressure is low. Otherwise, it could result in extensive
engine damage.
If the light illuminates or the warning indication is displayed while driving:
1. Drive to the side of the road and park off the right-of-way o n 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 6-24). If it's low, add th e 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.
(Red)
High Engine Coolant
Temperature Warning Light The light flashes when the engine coolant temperature is extrem
ely high, and illumi-
nates when the engine coolant temperature increases further.
Handling Procedure
Flashing light
Drive slowly to reduce engine l oad until you can find a safe place to stop the vehicle
and wait for the engine to cool down.
Illuminated light
This indicates the possibility of overheating. Park the vehicle in a safe place immedi-
ately and stop the engine.
Refer to Overheating on page 7-20.
CAUTION
Do not drive the vehicle with the high engi ne coolant temperature warning light illumi‐
nated. Otherwise, it could result in damage to the engine.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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