2018 MAZDA MODEL 3 HATCHBACK Electrical

Do not spray water in the engine
compartment. Otherwise, it could result
in engine-starting problems or damage
to electrical parts.
 When washing and waxing the vehicle,
be careful not to apply excessive force to
any single area of the vehicle roof or the
antenna. Otherwise, you could dent the
vehicle or damage the antenna.
To help protect the finish from rust and
deterioration, wash your Mazda
thoroughly and frequently, at least once a
month, with lukewarm or cold water.

If the vehicle is washed improperly, the
paint surface could be scratched. Here are
some examples of how scratching could
occur.

Scratches occur on th e paint surface when:
The vehicle is washed without first
rinsing off dirt and other foreign matter.
The vehicle is washed with a rough, dry,
or dirty cloth.
The vehicle is washed at a car wash that
uses brushes that are dirty or too stiff.
Cleansers or wax containing abrasives
are used.
NOTE
Mazda is not responsible for scratches
caused by automatic car washes or
improper washing.
Scratches are more noticeable on
vehicles with darker paint finishes.
To minimize scratches on the vehicle's
paint finish:
Rinse off any dirt or other foreign matter
using lukewarm or cold water before
washing.
Use plenty of luke warm or cold water
and a soft cloth when washing the
vehicle. Do not use a nylon cloth.
Rub gently when washing or drying the
vehicle.
Take your vehicle only to a car wash
that keeps its brushes well maintained.
Do not use abrasive cleansers or wax
that contain abrasives.
CAUTION
 Do not use steel wool, abrasive cleaners,
or strong detergents containing highly
alkaline or caustic agents on
chrome-plated or anodized aluminum
parts. This may damage the protective
coating; also, cleaners and detergents
may discolor or deteriorate the paint.
Pay special attention to removing salt, dirt,
mud, and other forei gn material from the
underside of the fenders, and make sure
the drain holes in the lower edges of the
doors and rocker panels are clean.

Insects, tar, tree sap, bird droppings,
industrial fallout, and similar deposits can
damage the finish if not removed
immediately. When prompt washing with
plain water is ineffective, use a mild soap
made for use on vehicles.

Maintenance and Care
Appearance Care
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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
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Interior Care
WA R N I N G
Do not spray water into the vehicle cabin:
Spraying water into the vehicle cabin is
dangerous as electrical devices such as the
audio and switches could get wet resulting
in a malfunction or vehicle fire.
NOTE
Do not wipe the interior using alcohol,
chlorine bleach, or organic solvents
such as thinner, benzene, and gasoline.
Otherwise, it may cause discoloration or
stains.
Rubbing hard with a stiff brush or cloth
may cause damage.
If the vehicle interior becomes soiled by
any of the follo wing, wipe it off
immediately using a soft cloth.
Leaving it uncleaned could cause
discoloration, stains , cracks, or peeling of
the coating, and it will make it hard to
wipe off later.
Beverage or fragrance
Grease or oil
Soiling
▼ Seat Belt Maintenance
1. Clean the soiled area by lightly
dabbing it with a soft cloth soaked in a
mild detergent (approx. 5%) diluted
with water.
2. Wipe off the remaining detergent using
a cloth soaked in clean water and
wrung out well.
3. Before retracting seat belts which havebeen pulled out for cleaning, dry them
off thoroughly and make sure there is
no remaining moisture on them.
WA R N I N G
If a seat belt appears frayed or has
abrasions, have it replaced by an
Authorized Mazda Dealer:
If a seat belts is used under such a
condition, it cannot function at its full
capacity which could result in serious injury
or death.
Use a mild detergent to remove soiling
from a seat belt:
If organic solvents are used for cleaning the
seat belts or they become stained or
bleached, there is the possibility of them
becoming weakened and as a result, they
may not function at their full capacity
which could cause serious injury or death.
NOTE
Clean seat belts diligently if they get dirty.
Leaving them uncleaned will make it
difficult to clean them later, and it may
affect the smooth retracting of the seat
belt.
▼Vinyl Upholstery Maintenance
Remove dust and dirt from the vinyl
upholstery using a brush or vacuum.
Remove soiling from
vinyl upholstery
using a leather and vinyl upholstery
cleaner.
Maintenance and Care
Appearance Care
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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
Check Engine LightIf this light illuminates while driving, the vehicle may have a
problem. It is important to
note the driving cond itions when the light illuminated and consult an Authorized Mazda
Dealer.
The check engine light may illumi nate in the following cases:
The fuel tank level being very low or approaching empty.The engine's electrical system has a problem.The emission control system has a problem.The fuel-filler cap is missing or not tightened securely.
If the check engine light remains on, or it flashes continuousl y, do not drive at high speeds
and consult an Authorized Mazd a Dealer as soon as possible.
Automatic Trans-
axle Warning Light*
The indication/light illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning indication/ light illuminates, the transaxle has an electri‐
cal problem. Continuing to drive your Mazda in this condition could cause damage to your
transaxle. Consult an Authorized Mazda Dealer as soon as possible.
(Turns on)
TCS/DSC Indicator
Light If the light stays on, the TCS, DSC or the brake assist system
may have a malfunction and
they may not operate correctly. Take your vehicle to an Authori zed Mazda Dealer.
Air Bag/Seat Belt
Pretensioner System Wa r n i n g L i g h t A system malfunction is
indicated if the warning light constantly flashes, constantly illu-
minates or does not illuminate a t all when the ignition is switched ON. If any of these
occur, consult an Authorized Mazd a Dealer as soon as possible. The system may not oper-
ate in an accident.WARNING
Never tamper with the air bag/pretensioner systems and always have an Authorized Mazda
Dealer perform all servicing and repairs:
Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner could
accidentally activate or become disabled causing serious injury or death.
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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Add-On Non-Genuine Parts and Accessories
Non-genuine parts and accessories for Mazda vehicles can be found in stores.
These may fit your vehicle, but they are not approved by Mazda for use with Mazda
vehicles. When you install non-genuine parts or accessories, th ey could affect your vehicle's
performance or safety systems; th e Mazda warranty doesn't cover this. Before you install
any non-genuine parts or accessories, consult an Authorized Maz da Dealer.
WA R N I N G
Always consult an Authorized Mazda Dealer before you install non-genuine parts or
accessories:
Improperly designed parts or accessories could seriously affect your vehicle's performance or
safety systems. This could cause you to have an accident or increase your chances of injuries
in an accident.
Be very careful in choosing and installing add-on electrical equipment, such as mobile
telephones, two-way radios, stereo systems, and car alarm systems:
Incorrectly choosing or installing improper add-on equipment or choosing an improper
installer is dangerous. Essential systems could be damaged, causing engine stalling, air-bag
(SRS) activation, ABS/TCS/DSC inactivation, or a fire in the vehicle.
Mazda assumes no responsibility for death, injury, or expenses that may result from the
installation of add-on non-genuine parts or accessories.
Customer Information and Reporting Safety Defects
Wa r r an t y
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