2020 MAZDA MODEL 3 HATCHBACK engine

NOTE
When raising the jack head into the
jacking position and aligning the
groove in the jack head with the rail
under the vehicle body, the top of the
jack head contacts the vehicle's
underbody without the rail contacting
the bottom of the groove.
7. Insert the jack lever and attach the lug wrench to tire jack.

8. Turn the jack handle clockwise and
raise the vehicle high enough so that
the spare tire can be installed. Before
removing the lug nuts, make sure your
Mazda is firmly in position and that it
cannot slip or move.

WA R N I N G
Do not jack up the vehicle higher than
is necessary:
Jacking up the vehicle higher than is
necessary is dangerous as it could
destabilize the vehicle resulting in an
accident.
Do not start the engine or shake the
vehicle while it is jacked up:
Starting the engine or shaking the
vehicle while it is jacked up is
dangerous as it could cause the vehicle
to fall off the jack resulting in an
accident.
Never go under the vehicle while it is
jacked up:
Going under the vehicle while it is
jacked up is dangerous as it could result
in death or serious injury if the vehicle
were to fall off the jack.
9. Remove the lug nuts by turning them counterclockwise; then remove the
wheel and center cap.
▼Locking Lug Nuts
If your Mazda is equipped with the
optional antitheft wheel lug nuts, a special
key must be used to unlock the locking lug
nut for each wheel. The key is stored in
the glove compartment, center console
storage, storage box, o
r trunk. Register the
key and lug nuts with the lock
manufacturer by filling out the registration
card and mailing it in using the
accompanying envelope. If the key is lost,
consult an Authorized Mazda Dealer or
use the lock manufacturer’s order form to
order a new key.
If Trouble Arises
Flat Tire
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Connect the negative cable to a good ground point away from the battery:
Connecting the end of the second jumper cable to the negative (–) terminal of the discharged
battery is dangerous.
A spark could cause the gas around the battery to explode and injure someone.
Route the jumper cables away from parts that will be moving:
Connecting a jumper cable near or to moving parts (cooling fans, belts) is dangerous. The
cable could get caught when the engine starts and cause serious injury.
CAUTION
Use only a 12 V booster system. You can damage a 12 V starter, ignition system, and other
electrical parts beyond repair with a 24 V power supply (two 12 V batteries in series or a 24 V
motor generator set).
1. Move the booster vehicle so that its battery is as close as p ossible to your vehicle's
battery.
2. Make sure that the power such as for the headlights and air c onditioner is turned off.
3. Remove the battery cover.
4. Turn off the booster vehicle's engine and connect the jumper cables in the following
order.
Make sure that the jumper cables are securely connected so that they do not disconnect
due to engine vibrations.
1st lead
Positive (+) terminal o n the discharged battery
Positive (+) terminal on booster vehicle's battery
2nd lead
Negative (-) terminal on booster vehicle's battery
If Trouble Arises
Battery Runs Out
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Location shown in the figure (do not connect to the negative (-) terminal of the
battery)
5. Start the booster vehicle's engine and rev the engine.
6. Start the engine of your vehicle. Run the engines for about 3 minutes to temporarily
charge the battery of your vehicle.
7. Disconnect the jumper cables in the reverse order of their co nnection.
8. Install the battery cover.
9. Have your vehicle inspected by an Authorized Mazda Dealer as soon as possible.
If Trouble Arises
Battery Runs Out
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Starting a Flooded Engine
▼Starting a Flooded Engine
If the engine fails to start, it may be
flooded (excessive fuel in the engine).

Follow this procedure:

1. If the engine does not start within 5
seconds on the first try, wait 10
seconds and try again.
2. Make sure the parking brake is on.
3. Depress the accelerator all the way and hold it there.
4. Depress the clutch pedal (manual
transmission) or the brake pedal
(automatic transmission), then press
the push button start. If the engine
starts, release the accelerator
immediately because the engine will
suddenly rev up.
5. If the engine fails to start, crank it
without depressing the accelerator.

If the engine still does not start using the
previous procedure, have your vehicle
inspected by an Authorized Mazda Dealer.
Push-Starting
▼ Push-Starting
Do not push-start your Mazda.
WA R N I N G
Never tow a vehicle to start it:
Towing a vehicle to start it is dangerous.
The vehicle being towed could surge
forward when its engine starts, causing the
2 vehicles to collide. The occupants could
be injured.
CAUTION
Do not push-start a vehicle that has a
manual transmission. It can damage the
emission control system.
NOTE
You cannot start a vehicle with an
automatic transmission by pushing it.
If Trouble Arises
Emergency Starting
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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.
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 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
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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 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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If a Warning Light TurnsOn or Flashes
▼If a Warning Light Turns On or
Flashes
If any warning light turns on/flashes, take
appropriate action for each light. There is
no problem if the light turns off, however
if the light does not
turn off or turns on/
flashes again, consult an Authorized
Mazda Dealer.
The details for some warnings can be
viewed on the center display or
multi-information display in the
instrument cluster.
Center display
1. Select “Information” on the home
screen.
2. Select “Vehicle Status Monitor”.
3. Select the applicable warning to view the warning details.
NOTE
You can also display the currently
occurring warning by sliding the
commander knob to the left while on the
home screen of the center display.
Multi-information display
1. Press the INFO switch on the steeringswitch to displa y the warning
indication screen.
Refer to Multi-information Display on
page 4-14.
▼ Brake System Warning Indication/
War ni ng L i gh t
This warning has the following functions:
Warning light inspection
For an operation check
, make sure that the
light turns on when the ignition is
switched on, and turns off a few seconds
later or when the engine is started.
When the light turns on
If the brake system warning light remains
illuminated the brak e fluid may be low or
there could be a problem with the brake
system. Park the vehicle in a safe place
immediately and contact an Authorized
Mazda Dealer.
Refer to Inspecting Brake/Clutch Fluid
Level on page 6-19.
WA R N I N G
Do not drive with the brake system
warning light illuminated. Contact an
Authorized Mazda Dealer to have the
brakes inspected as soon as possible:
Driving with the brake system warning
light illuminated is dangerous. It indicates
that your brakes may not work at all or
that they could completely fail at any time.
If this light remains illuminated, after
checking that the parking brake is fully
released, have the brakes inspected
immediately.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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CAUTION
In addition, the
effectiveness of the
braking may diminish so you may need
to depress the brake pedal more strongly
than normal to stop the vehicle.

▼ Electronic Brake Force Distribution
System Warning
If the electronic brake force distribution
control unit determines that some
components are operating incorrectly, the
control unit may illuminate the brake
system warning light and the ABS
warning light simultaneously. The
problem is likely to be
the electronic brake
force distribution system.
WA R N I N G
Do not drive with both the brake system
warning light and ABS warning light
illuminated. Have the vehicle towed to an
Authorized Mazda Dealer to have the
brakes inspected as soon as possible:
Driving when the brake system warning
light and ABS warning light are illuminated
simultaneously is dangerous.
When both lights are illuminated, the rear
wheels could lock more quickly in an
emergency stop than under normal
circumstances.
▼ Charging System Warning
Indication/Warning Light
If the warning light
illuminates while
driving, it indicates a malfunction of the
alternator or of the charging system.
Drive to the side of the road and park off
the right-of-way. Consult an Authorized
Mazda Dealer.
CAUTION
Do not continue driving when the charging
system warning light is illuminated
because the engine could stop
unexpectedly.
▼ Engine Oil Warning Indication/
Wa r n i n g L i g h t
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-wa y on level ground.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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