2019 MAZDA MODEL 3 HATCHBACK Owners Manual (in English)

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 6-32).
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 8-22.
▼ 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
6-33
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

Light Bulbs
▼Light Bulbs
Front
Ty p e A
1. Vanity mirror lights*
2. Overhead lights/ Front map lights
3. Side turn signal lights
*
4. Front side-marker lights
5. Parking lights
6. Headlights (High/Low beam)/ Daytime
running lights
7. Front turn signal lights
Ty p e B
1. Vanity mirror lights*
2. Overhead lights/ Front map lights
3. Side turn signal lights
*
4. Parking lights/Front side-marker lights
5. Headlights (High/Low beam)/ Daytime running lights
6. Front turn signal lights
Rear
4–Door
1. Trunk light
2. High-mount brake light
3. Overhead light (Rear)
4. Rear side-marker lights
5. Brake lights/Taillights
*
6. Rear turn signal lights
7. Brake lights/Taillights
8. Taillights
*
9. Reverse lights
10. License plate lights
5–Door
1. Luggage compartment light
2. High-mount brake light
3. Overhead light (Rear)
4. Rear side-marker lights
5. Rear turn signal lights
6. Brake lights/Taillights
7. Taillights
*
8. Reverse lights
9. License plate lights
Maintenance and Care
Owner Maintenance
6-34*Some models.
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

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
When replacing a bulb, contact an
Authorized Mazda Dealer if necessary.
Use the protective cover and carton for
the replacement bulb to dispose of the
old bulb promptly and out of the reach
of children.
For details regarding the installation
positions of the interior lights, refer to
the following:
Vanity mirror lights
Refer to Vanity Mirrors on page 5-33.
Overhead Lights/front map lights,
overhead light (rear), trunk light, and
luggage compartment light
Refer to Interior Lights on page 5-34.
▼ Replacing Exterior Light Bulbs
The exterior lights have either LEDs or
normal bulbs.
Only the bulb for a parking lights/front
side-marker lights (type B) can be
replaced.
LED type
Headlights
Daytime running lights
Parking lights (Type A)
Front turn signal lights
Front side-marker lights (Type A)
Side turn signal lights*
High-mount brake light
Rear turn signal lights
Rear side-marker lights
Brake lights
Taillights
Reverse lights
License plate lights
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.
Bulb type
Parking lights/Front side-marker lights
(Type B)
1. Make sure the ignition is switched off, and the headlight switch is off.
2. If you are changing the left bulb, start
the engine, turn the steering wheel all
the way to the right, and turn off
engine. If you are changing the right
bulb, turn the steering wheel to the left.
3. Pull the center of each plastic retainer
and remove the retainers.
1. Removal
2. Installation

Maintenance and Care
Owner Maintenance
*Some models.6-35
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

4. Pull the center of each plastic retainer
and remove the retainers.
1. Removal
2. Installation

5. Turn the screw counterclockwise and remove it, and then partially peel back
the mudguard.
6. Turn the socket and bulb assembly
counterclockwise and remove it.
7. Disconnect the bulb from the socket.
8. Install the new bulb in the reverseorder of the removal procedure.
▼Replacing Interior Light Bulbs
Overhead lights/Front map lights,
Overhead light (Rear), Vanity mirror
lights, Luggage compartment light (5–
Door)
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.
Trunk light (4–Door)
1. Press both sides of the lens cap to remove it.
2. Disconnect the bulb by pulling it out.
3. Install the new bulb in the reverse
order of the removal procedure.
Maintenance and Care
Owner Maintenance
6-36
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

Fuses
▼Fuses
Your vehicle's electrical system is
protected by fuses.

If any lights, accessori
es, 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.
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. We recommend 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.
Maintenance and Care
Owner Maintenance
6-37
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

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

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
6-38
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

▼Fuse Panel Description
Fuse block (Engine compartment)
No. FUSE RAT‐
ING PROTECTED COMPONENT
F1 ― ―
F2 20 A
Windshield wiper de-icer
*
F3 30 A Engine control system
20 A
―
F4 20 A S-VT
F5 40 A Engine control system
F6 20 A ―
Maintenance and Care
Owner Maintenance
*Some models.6-39
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10

No.FUSE RAT‐
ING PROTECTED COMPONENT
F7 15 A ―
20 A Fuel pump
F8 15 A Engine control system
F9 15 A Transmission control system
*
F1015 A Engine control system
F11 7.5 A Air conditioner
F12 15 A Engine control system
F13 15 A ―
F14 20 A
Front seat warmer
*
F15 20 A ―
F16 15 A For protectio n of various circuits
F17 ― ―
F18 15 A Accessory sockets
F19 60 A Power steering system
F20 15 A Headlight (LH) 1
F21 15 A Headlight (RH) 1
F22 15 A For protectio n of various circuits
F23 30 A ABS, Dynamic stability control system
F24 15 A Headlight (LH) 2
F25 15 A Headlight (RH) 2
F26 7.5 A On board diagnostics
F27 25 A For protectio n of various circuits
F28 25 A For protectio n of various circuits
F29 15 A Windscreen washer
F30 15 A Accessory sockets
F31 15 A Horn
F32 ― ―
F33 ― ―
F34 ― ―
F35 50A ABS, Dynamic stability control system
F36 ― ―
F37 40 A Rear window defogger
F38 50 A For protectio n of various circuits
F39 ― ―
F40 40 A Air conditioner
Maintenance and Care
Owner Maintenance
6-40*Some models.
Mazda3_8HE9-EA-18K_Edition1 2018-10-17 19:05:10