Page 440 of 583
SKYACTIV-G 2.5T
1. Engine oil dipstick
2. Brake fluid reservoir
3. Battery
4. Fuse block
5. Cooling system cap
6. Engine oil-filler cap
7. Engine coolant reservoir
8. Windshield washer fluid reservoir
Maintenance and Care
Owner Maintenance
6-15
CX-50_8KB8-EA-22A_Edition2_new
2022-1-6 14:55:18
Page 447 of 583

Body Lubrication
▼Body Lubrication
All moving points of the body, such as
door and hood hinges and locks,
should be lubricated each time the
engine oil is changed. Use a
non-freezing lubricant on locks during
cold weather.
Make sure the hood's secondary latch
keeps the hood from opening when
the primary latch is released.
Wiper Blades
▼ Wiper Blades
CAUTION
Hot waxes applied by automatic car
washers have been known to
affect
the wiper's ability to clean windows.
An operation malfunction may occur
or the wiper
effectiveness may be
reduced if a water-repellent coating
is used.
To prevent damage to the wiper
blades, do not use gasoline,
kerosene, paint thinner, or other
solvents on or near them.
When the wiper lever is in the AUTO
position and the ignition is switched
ON, the wipers may move
automatically in the following cases:
If the windshield above the rain
sensor is touched.
If the windshield above the rain
sensor is wiped with a cloth.
If the windshield is struck with a
hand or other object.
If the rain sensor is struck with a
hand or other object from inside
the vehicle.
Be careful not to pinch hands or fingers as it may cause injury, or
damage the wipers. When washing
or servicing the vehicle, make sure
the wiper lever is in the OFF
position.
Before lifting the windshield wiper
blades off the windshield, always
follow the procedure for moving the
windshield wiper blades. Otherwise,
a wiper blade, wiper arm, or the
hood could be damaged.
Maintenance and Care
Owner Maintenance
6-22
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18
Page 451 of 583
2. Remove the stopper and raise thewiper arm.
3. Firmly rotate the wiper blade to theright until it unlocks, then remove
the blade.
CAUTION
To prevent damage to the rear
window, do not let the wiper arm
fall on it.
4. Pull down the blade rubber and
slide it out of the blade holder.
5. Remove the metal stiffeners fromthe blade rubber and install them in
the new blade.
CAUTION
Do not bend or discard the
stiffeners. You need to use them
again.
6. Carefully insert the new blade
rubber.
Then install the blade assembly in
the reverse order of removal.
Maintenance and Care
Owner Maintenance
6-26
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18
Page 454 of 583

Key Battery Replacement
▼Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not
flash, the battery may be
dead.
Replace with a new battery before the
transmitter becomes unusable.
CAUTION
Make sure the battery is installed
correctly. Battery leakage could occur
if it is not installed correctly.
When replacing the battery, be
careful not to touch any of the
internal circuitry and electrical
terminals, bend the electrical
terminals, or get dirt in the
transmitter as the transmitter could
be damaged.
There is the danger of explosion if
the battery is not correctly replaced.
Dispose of used batteries according
to the following instructions.
Insulate the plus and minus
terminals of the battery using
cellophane or equivalent tape.
Never disassemble.
Never throw the battery into fire or
water.
Never deform or crush.
Replace only with the same type
battery (CR2032 or equivalent).
The following conditions indicate that
the battery power is low:
A message, “Low Key Fob Battery.
Replace Battery” is displayed on the
multi-information display when the
ignition is switched OFF.
The system does not operate and the
operation indicator light on the
transmitter does not flash when the
buttons are pressed.
The system's operational range is
reduced.
Incorrect battery replacement
operation may damage the key.
Replacing the battery at an Authorized
Mazda Dealer is recommended. If
replacing the battery by yourself,
follow the instruction.
Replacing the key battery
1. Remove the lower cover while sliding the knob in the direction of
the arrow.
2. Press in the tab to unlock the upper
cover.
Maintenance and Care
Owner Maintenance
6-29
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18
Page 461 of 583

3. Pull the fuse straight out with thefuse puller provided on the fuse
block located in the engine
compartment.
4. Inspect the fuse and replace it if it is
blown.
1. Normal
2. Blown
5. Insert a new fuse of the same
amperage rating, and make sure it
fits tightly. If it does not
fit tightly,
have an expert install it. Consult an
Authorized Mazda Dealer.
If you have no spare fuses, borrow
one of the same rating from a
circuit not essential to vehicle
operation, such as the audio or
accessory socket circuit.
CAUTION
Always replace a fuse with a
genuine Mazda fuse or equivalent
of the same rating. Otherwise, you
may damage the electric system.
6. Reinstall the cover and make sure that it is securely installed.
Replacing the fuses under the hood
If the headlights or other electrical
components do not work and the fuses
in the cabin are normal, inspect the
fuse block under the hood.
If a fuse is blown, it must be replaced.
Follow these steps:
1. Make sure the ignition is switched
off, and other switches are
off.
2. Remove the fuse block cover.
3. If any fuse but the MAIN fuse is blown, replace it with a new one of
the same amperage rating .
1. Normal
2. Blown
Maintenance and Care
Owner Maintenance
6-36
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18
Page 463 of 583
▼Fuse Panel Description
Fuse block (Engine compartment)
No. FUSE RAT-
ING PROTECTED COMPONENT
F1 ――
F2 20 A Windshield wiper de-icer
*
F330 A Engine control system
F4 20 A S-VT
F5 40 A Engine control system
F6 ――
F7 20 A Fuel pump
Maintenance and Care
Owner Maintenance
6-38*Some models.
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18
Page 466 of 583
Fuse block (Left side)
No.FUSE RAT-
ING PROTECTED COMPONENT
F1 ――
F2 ――
F3 20 A Front seat warmer
*
F415 A Power door locks (Driver)
F5 15 A Power door locks (Passenger)
F6 20 A
Rear seat warmer
*
F7 25 A
Powe r l i ft ga te*
F8 30 A
Power seat (Passenger)*
F9 30 A Power windows (Driver)
F10 30 A Power windows (Passenger)
F11 30 A
Power seat (Driver)
*
F12 ――
F13 15 A Audio
F14 25 A Audio
F15 15 A Liftgate lock
Maintenance and Care
Owner Maintenance
*Some models.6-41
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18
Page 470 of 583

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.
Make sure that the fuel-filler lid is
closed and lock the doors.
Otherwise, the fuel-filler lid may be
forcefully opened by water pressure
causing damage to the vehicle or
fuel-filler lid.
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 the 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 lukewarm 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 foreign 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 finis h if not removed
immediately. When prompt washing
with plain water is ineffective, use a
mild soap made for use on vehicles.
Thoroughly rinse off all soap with
lukewarm or cold water. Do not allow
soap to dry on the finish.
After washing the vehicle, dry it with a
clean chamois to prevent water spots
from forming.
Maintenance and Care
Appearance Care
6-45
CX-50_8KB8-EA-22A_Edition2_new 2022-1-6 14:55:18