MAZDA MODEL CX-3 2021 Owners Manual

tire. This tire should be used only for an
emergency and only for a short distance.

Use the temporary spare tire only until the
conventional tire is repaired, which should
be as soon as possible.
Refer to Tires on page 9-7.

CAUTION
Do not use your temporary spare tire rim
with a snow tire or a conventional tire.
Neither will properly fit and could
damage both tire and rim.
 The temporary spare tire has a tread life
of less than 5,000 km (3,000 miles). The
tread life may be shorter depending on
driving conditions.
 The temporary spare tire is for limited
use, however, if the tread wear
solid-band indicator appears, replace the
tire with the same type of temporary
spare (page 6-38).
NOTE
Tires degrade over time, even when they
are not being used on the road. It is
recommended that tires generally be
replaced when they are 6 years or older.
Heat caused by hot climates or frequent
high loading conditions can accelerate the
aging process. You should replace the
spare tire when you replace the other road
tires due to the aging of the spare tire. The
period in which the tire was manufactured
(both week and year) is indicated by a
4-digit number.
Refer to Tire Labeling on page 8-25.
▼ Replacing a Wheel
WA R N I N G
Always use wheels of the correct size on
your vehicle:
Using a wrong-sized wheel is dangerous.
Braking and handling could be
affected,
leading to loss of control and an accident.
CAUTION
A wrong-sized wheel may adversely affect:
 Tire fit
 Wheel and bearing life
 Ground clearance
 Snow-chain clearance
 Speedometer calibration
 Headlight aim
 Bumper height
 Tire Pressure Monitoring System
*
NOTE
When replacing a wheel, make sure the
new one is the same as the original
factory wheel in diameter, rim width,
and offset (inset/outset).
For details, contact an Authorized
Mazda Dealer.

Proper tire balancing provides the best
riding comfort and helps reduce tread
wear. Out-of-balance tires can cause
vibration and uneven wear, such as
cupping and flat spots.
Maintenance and Care
Owner Maintenance
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Light Bulbs
With LED HeadlightsWith Halogen Headlights
Overhead lights (Front) /Map lights
Overhead lights (Rear)Overhead lights (Front) /Map lights
Headlights (High
beam)/Daytime running
lights
Headlights (Low beam)
Parking lights/Daytime
running lights Side turn signal lights
Fog lights
Parking lights/Front
side-marker lights
Front side-marker lights
Front turn signal lights
Luggage compartment light
License plate lights Reverse lights Taillights
Rear turn signal lights Rear side-marker lights
Brake lights/Taillights High-mount brake light
Some models.
Side turn signal lights
Headlights (High beam)
Headlights (Low beam)
Fog lights
Front turn signal lights
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Owner Maintenance
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WARNING
Never touch the glass portion of a halogen
bulb with your bare hands and always
wear eye protection when handling or
working around the bulbs:
When a halogen bulb breaks, it is
dangerous. These bulbs contain
pressurized gas. If one is broken, it will
explode and serious injuries could be
caused by the flying glass.
If the glass portion is touched with bare
hands, body oil could cause the bulb to
overheat and explode when lit.
Always keep halogen bulbs out of the reach
of children:
Playing with a halogen bulb is dangerous.
Serious injuries could be caused by
dropping a halogen bulb or breaking it
some other way.
CAUTION
When removing the lens or lamp unit using
a flathead screwdriver, make sure that the
flathead screwdriver does not contact the
interior terminal. If the flathead screwdriver
contacts the terminal, a short circuit may
occur.
NOTE
To replace the bulb, contact an
Authorized Mazda Dealer.
If the halogen bulb is accidentally
touched, it should be cleaned with
rubbing alcohol before being used.
Use the protective cover and carton for
the replacement bulb to dispose of the
old bulb promptly and out of the reach
of children.
▼Replacing Exterior Light Bulbs
Headlights (With LED headlights)
The LED bulb cannot be replaced as a
single unit because it is an integrated unit.
The LED bulb has to be replaced with the
unit. We recommend an Authorized
Mazda Dealer when the replacement is
necessary.
Headlights/Daytime running lights
(With halogen headlights)
High-beams bulbs/Daytime running
lights
1. Make sure the ignition is switched off,
and the headlight switch is off.
2. Lift the hood.
3. Disconnect the connector from the unit by pressing the tab on the connector
with your finger and pulling the
connector downward.

4. Turn the socket and bulb assembly toremove it. Carefully remove the bulb
from its socket in the reflector by
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Owner Maintenance
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gently pulling it straight backward out
of the socket.

5. Install the new bulb in the reverseorder of the removal procedure.
Low-beam bulbs
1. Make sure the ignition is switched off, and the headlight switch is off.
2. Lift the hood.
3. Disconnect the connector from the unit by pressing the tab on the connector
with your finger and pulling the
connector downward.

4. Turn the socket and bulb assembly toremove it. Carefully remove the bulb
from its socket in the reflector by
gently pulling it straight backward out
of the socket.

5. Install the new bulb in the reverse
order of the removal procedure.
Parking lights/Daytime running lights/
Front side-marker lights (With LED
headlights)
The LED bulb cannot be replaced as a
single unit because it is an integrated unit.
The LED bulb has to be replaced with the
unit. We recommend an Authorized
Mazda Dealer when the replacement is
necessary.
Parking lights/Front side-marker lights
(With halogen headlights)
1. Make sure the ignition is switched off, and the headlight switch is off.
2. Turn the socket and bulb assembly counterclockwise and remove it.
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Owner Maintenance
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3. Disconnect the bulb from the socket.
4. Install the new bulb in the reverseorder of the removal procedure.
Front turn signal lights
1. Make sure the ignition is switched off, and the headlight switch is off.
2. Turn the screw counterclockwise and remove it, and then partially peel back
the mudguard.

3. Turn the socket and bulb assembly
counterclockwise and remove it.
4. Disconnect the bulb from the socket.
5. Install the new bulb in the reverseorder of the removal procedure.
Fog lights
*, Side turn signal lights*,
Brake lights/Taillights (LED type), Rear
side-marker lights (LED type),Taillights
(LED type)*, High-mount brake light,
Reverse lights (LED type)
The LED bulb cannot be replaced as a
single unit because it is an integrated unit.
The LED bulb has to be replaced with the
unit. We recommend an Authorized
Mazda Dealer when the replacement is
necessary.
Rear turn signal lights, Brake lights/
Taillights (Bulb type), Rear side-marker
lights (Bulb type)
1. Make sure the ignition is switched off, and the headlight switch is off.
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2. Turn the bolts counterclockwise andremove them.

3. Pull the unit rearward to remove it.
4. Turn the socket and bulb assemblycounterclockwise and remove it.
5. Disconnect the bulb from the socket.
Rear turn signal lights

Brake lights/Taillights

Rear side-marker lights

6. Install the new bulb in the reverse order of the removal procedure.
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Reverse lights (Bulb type)
1. Make sure the ignition is switched off,and the headlight switch is off.
2. Remove the cover.
3. Turn the socket and bulb assembly
counterclockwise and remove it.
4. Disconnect the bulb from the socket.

5. Install the new bulb in the reverseorder of the removal procedure.
License plate lights
1. Make sure the ignition is switched off, and the headlight switch is off.
2. Remove the cover.

3. Turn the socket and bulb assemblycounterclockwise and remove it.

4. Disconnect the bulb from the socket.
5. Install the new bulb in the reverse
order of the removal procedure.
▼Replacing Interior Light Bulbs
Overhead lights (Front)/Map lights,
Overhead lights (Rear)
1. Wrap a small flathead screwdriver with
a soft cloth to prevent damage to the
lens, and then remove the lens by
carefully prying on the edge of the lens
with the flathead screwdriver.
2. Disconnect the bulb by pulling it out.
Maintenance and Care
Owner Maintenance
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Overhead lights (Front)/Map lights


Overhead lights (Rear)

Edge
3. Install the new bulb in the reverseorder of the removal procedure.
Luggage compartment light
1. Wrap a small flathead screwdriver with
a soft cloth to prevent damage to the
lens and remove the lens unit by
carefully prying on the edge of the lens
unit with the fla thead screwdriver.
2. Disconnect the bulb by pulling it out.
3. Install the new bulb in the reverse
order of the removal procedure.
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Fuses
Your vehicle's electrical system is
protected by fuses.

If any lights, accessories, or controls do
not work, inspect the appropriate circuit
protector. If a fuse has blown, the inside
element will be melted.

If the same fuse blows again, avoid using
that system and consult an Authorized
Mazda Dealer as soon as possible.
▼ Fuse Replacement
Replacing the fuses on the vehicle's left
side
If the electrical system does not work, first
inspect the fuses on the vehicle's left side.

1. Make sure the ignition is switched off,
and other switches are off.
2. Open the fuse panel cover.
3. Pull the fuse straight out with the fuse puller provided on the fuse block
located in the engine compartment.
4. Inspect the fuse and replace it if it isblown.
Normal 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 OUTLET 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.
Maintenance and Care
Owner Maintenance
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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 .
Normal
Blown
WARNING
Do not replace the main fuse by
yourself. Have an Authorized Mazda
Dealer perform the replacement:
Replacing the fuse by yourself is
dangerous because the MAIN fuse is a
high current fuse. Incorrect
replacement could cause an electrical
shock or a short circuit resulting in a
fire.
4. Reinstall the cover and make sure that it is securely installed.
Maintenance and Care
Owner Maintenance
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