battery MAZDA MODEL 3 4-DOOR 2018 Workshop Manual

5. Remove the battery cap, then removethe battery.
CAUTION
Be careful not to allow the rubber
ring shown in the figure to be
scratched or damaged.
 If the rubber ring detaches, reattach
it before inserting a new battery.
Rubber ring
6. Insert a new battery with the positive
pole facing up, and then cover the
battery with the battery cap.
7. Close the cover.
8. Reinsert the auxiliary key.
Maintenance and Care
Owner Maintenance
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▼Aluminum Wheel Maintenance*
A protective coating is provided over the
aluminum wheels. Special care is needed
to protect t
his 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 wate r. 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 plast ic parts or paint
damage.
Maintenance and Care
Appearance Care
6-68*Some models.
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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
*Some models.7-1
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Jump-Starting
Jump-starting is dangerous if done incorrectly. So follow the procedure carefully. If you feel
unsure about jump-starting, we strongly recommend that you have a competent service
technician do the work.
WA R N I N G
Follow These Precautions Carefully:
To ensure safe and correct handling of the ba ttery, read the following precautions carefully
before using the battery or inspecting it.
Do not allow the positive () terminal to contact any other metal object that could
cause sparks:
Flames and sparks near open battery cells are dangerous. Hydrogen gas, produced during
normal battery operation, could ignite and caus e the battery to explode. An exploding battery
can cause serious burns and injuries. When working near a battery, do not allow metal tools
to contact the positive (
) or negative () terminal of the battery.
Keep all flames, including cigarettes, and sparks away from open battery cells:
Flames and sparks near open battery cells are dangerous. Hydrogen gas, produced during
normal battery operation, could ignite and caus e the battery to explode. An exploding battery
can cause serious burns and injuries.
Do not jump-start a frozen battery or one with a low fluid level:
Jump-starting a frozen battery or one with a lo w fluid level is dangerous. It may rupture or
explode, causing serious injury.
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 pa rts (cooling fans, belts) is dangerous. The
cable could get caught when the engine starts and cause serious injury.
If Trouble Arises
Battery Runs Out
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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).

Connect cables in numerical order and disconnect in reverse order.Jumper cables
Booster battery
Discharged battery
If Trouble Arises
Battery Runs Out
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1. Remove the battery cover.
2. Make sure the booster battery is 12 Vand that its negative terminal is
grounded.
3. If the booster battery is in another vehicle, do not allow both vehicles to
touch. Turn off the engine of the
vehicle with the booster battery and all
unnecessary electrical loads in both
vehicles.
4. Connect the jumper cables in the exact
sequence as in the illustration.
Connect one end of a cable to the
positive terminal on the discharged
battery (1).
Attach the other e nd to the positive
terminal on the booster battery (2).
Connect one end of the other cable
to the negative terminal of the
booster battery (3).
Connect the other end to the ground
point indicated in the illustration
away from the discharged battery
(4).
5. Start the engine of the booster vehicle
and run it a few minutes. Then start the
engine of the other vehicle.
6. (With i-ELOOP system)
The i-ELOOP indicator light may flash
after the engine is started. The
indicator light turns off when the
engine is running and the charging is
completed. Make sure the i-ELOOP
indicator light is turns off before
driving.

NOTE
If the vehicle is driven with the
i-ELOOP indicator light flashing, a
beep sound is heard.
If the steering wheel is operated with
the i-ELOOP indicator light
flashing, it may feel heavier than
normal, however, this does not
indicate a malfunction. The steering
operation will return to normal when
the i-ELOOP indicator light turns
off.
Do not remove the jumper cables
while the i-ELOOP indicator light is
flashing.
7. When finished, carefully disconnect the cables in the reverse order
described in the illustration.
8. If the battery cover has been removed,
install it in the reverse order of
removal.
NOTE
Verify that the covers are securely
installed.
If Trouble Arises
Battery Runs Out
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SignalWarning
Power Steering Mal-
function Indicator Light The light illuminates/flashes if the electric power steering ha
s a malfunction.
If the light illuminates/flashes, stop the vehicle in a safe pl ace and do not operate the
steering wheel. There is no problem if the light turns off afte r a while. Contact an Au-
thorized Mazda Dealer if the lig ht illuminates/flashes continuously.
NOTE
If the indicator light illuminates/flashes, the power steering will not operate normal-
ly. In this happens, the st eering wheel can still be oper ated, however, the operation
may feel heavy compar ed to normal, or the steering wheel could vibrate when turn-
ing.
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.
▼ Contact Authorized Mazda Deal
er and Have Vehicle Inspected
If any of the following warning lights o r the indicator light turns on/flashes, the system may
have a malfunction. Contact an Authorized Mazda Dealer to have your vehicle inspected.
SignalWarning
ABS Warning LightIf the ABS warning light stays on while you're driving, the ABS
control unit has detected
a system malfunction. If this occurs, your brakes will function normally as if the vehicle
had no ABS.
Should this happen, consult an A uthorized Mazda Dealer as soon as possible.
NOTE
When the engine is jump-started to charge the battery, uneven rpm occurs and the ABS
warning light may illuminate. If this occurs, it is the result of the weak battery and does
not indicate an ABS malfunction.
The brake assist system does not operate while the ABS warning light is illuminated.
Master Warning
Light
(Vehicles with type B audio)
The light turns on when the system has a malfunction.
Operate the center display and verify the content.
Refer to If a Warning Light Turns On or Flashes on page 7-25.
(Vehicles without type B audio)
The light illuminates continuously if any one of the following occurs. Consult an Au-
thorized Mazda Dealer.
There is a malfunction in the battery management system.There is a malfunction in the brake switch.
Electric Parking
Brake (EPB) Warn-
ing Light
*
The warning light illuminates when the system has a malfunction . Have your vehicle in-
spected at an Authorized Mazda Dealer.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-28*Some models.
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SignalWarning Action to be taken
Low Washer
Fluid Level Wa r n i n g
Light
*
This warning light indicates that little washer
fluid remains. Add washer fluid (page 6-27).
Door-Ajar
Wa r n i n g Light The light turns on if a
ny door/liftgate is not
closed securely. Close the door/liftgate securely.

KEY Warning Light
Take the appropriate action and verify that the warning light t
urns off.
SignalCause Action to be taken
(Red)
(Flashing) The key battery is dead. Replace the key battery (page 6-35).
The key is not within the operation range.
Bring the key into the operation range
(page 3-7).
The key is placed in areas inside the cabin
where it is difficult for the key to be detect-
ed.
A key from another manufacturer similar to
the key is in the operation range. Take the key from another manufacturer
similar to the key out of the operation
range.
Without the ignition switched off, the key is
taken out of the cabin, and then all the
doors are closed. Bring the key back into the cabin.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-35
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NOTE
To allow the front passenger occupant
classification sensor to function
properly, do not place and sit on an
additional seat cushion on the front
passenger seat. The sensor may not
function properly because the additional
seat cushion could cause sensor
interference.
When a small child sits on the front
passenger seat, it is possible that the
warning beep will not operate.
▼Ignition Not Switched Off (STOP)
Warning Beep
If the driver's door is opened with the
ignition switched to
ACC, a beep will be
heard continuously in the cabin to notify
the driver that the ignition has not been
switched OFF (STOP). Under this
condition, the keyless entry system will
not operate, the vehicle cannot be locked,
and the battery voltage will be depleted.
▼ Key Removed from Vehicle Warning
Beep
Vehicles with advanc
ed keyless function
If the key is taken out of the vehicle while
the ignition is not switched OFF and all
the doors are closed, the beep which
sounds outside of the vehicle will be heard
6 times, the beep which sounds inside the
vehicle will be heard 6 times, and the
KEY warning light (red) in the instrument
cluster flashes continuously to notify the
driver that the ignition has not been
switched OFF.
Vehicles without advanced keyless
function
If the key is taken out of the vehicle while
the ignition is not switched OFF and all
the doors are closed, a beep will be heard
in the cabin 6 times and the KEY warning
light (red) in the ins trument cluster turns
on continuously to notify the driver that
the ignition has not been switched OFF.
NOTE
Because the key utilizes low-intensity
radio waves, the Key Removed From
Vehicle Warning may activate if the key is
carried together with a metal object or it
is placed in a poor si gnal reception area.
▼Request Switch Inoperable Warning
Beep (With the advanced keyless
function)
If the request switch is pressed with the
door open or ajar, or the ignition is not
switched OFF with a key being carried, a
beep will be heard outside for about 2
seconds to notify the driver that the door
or liftgate/trunk lid cannot be locked.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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When Liftgate/Trunk LidCannot be Opened
If the battery is dead, the liftgate/trunk lid
cannot be unlocked and opened.
In this case, the liftgate/trunk lid can be
unlocked by taking care of the dead
battery situation.
Refer to Jump-Starting on page 7-16.
If the liftgate/trunk lid cannot be unlocked
even if the dead battery situation has been
resolved, the electrical system may have a
malfunction.
In this case, the liftgate/trunk lid can be
opened using the following procedure as
an emergency measure.
(5–door)
1. Wrap the end of a flathead screwdriver
in a cloth and remove the cap on the
interior surface of th e liftgate using it.

Cap
2. Turn the lever to the right to unlock the liftgate.

Lever
Cap
(4–door)
1. Open the cover.
2. (With theft-prevention cover)
Open the cap.

Cover
Cap
If Trouble Arises
When Liftgate/Trunk Lid Cannot be Opened
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