Page 518 of 610
Black plate (518,1)
2. Remove the cover.
Left side
Right side
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.
Reverse lights
(4 Door)
1. Make sure the ignition is switched off
and the headlight switch is off.
2. Pull the center of each plastic retainer and remove the retainers and the trunk
lid trim.
InstallationRemoval
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 reverse order of the removal procedure.
(5 Door)
1. Make sure the ignition is switched off and the headlight switch is off.
8-54
Maintenance and Care
Owner Maintenance
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Form No.8CV6-EA-12H
Page 519 of 610
Black plate (519,1)
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.
High-mount brake light
(4 Door)
1. Make sure the ignition is switched offand the headlight switch is off. 2. Pull the center of each plastic retainer
and remove the retainers and the trunk
lid trim.
InstallationRemoval
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 reverse order of the removal procedure.
(5 Door)
LED type
Due to the complexity and difficulty of
the procedure, the LED bulbs must be
replaced by an Authorized Mazda Dealer.
NOTE
LED bulb replacement is not possible because
it is built into the unit. Replace the unit.
Maintenance and Care
Owner Maintenance
8-55
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Form No.8CV6-EA-12H
Page 520 of 610
Black plate (520,1)
Bulb type
1. Make sure the ignition is switched offand the headlight switch is off.
2. Remove the liftgate upper trim.
3. Disconnect the electrical connector from the bulb by pressing the tab on
the connector with your finger and
pulling the connector sideward to the
left.
4. Turn the socket and bulb assemblycounterclockwise and remove it. 5. Disconnect the bulb from the socket.
6. Install the new bulb in the reverse order
of the removal procedure.
License plate lights
1. Make sure the ignition is switched offand the headlight switch is off.
2. Wrap a 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 a
flathead screwdriver.
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Maintenance and Care
Owner Maintenance
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Form No.8CV6-EA-12H
Page 523 of 610

Black plate (523,1)
3. Pull the fuse straight out with the fusepuller provided on the inside of the
engine compartment fuse block cover.
4. Inspect the fuse and replace it if it'sblown.
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. 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 CIGAR circuit.
CAUTION
Always replace a fuse with one 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 .
Normal
Blown
Maintenance and Care
Owner Maintenance
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Form No.8CV6-EA-12H
Page 525 of 610
Black plate (525,1)
qFuse Panel Description
Fuse block (Engine compartment)
32 33 34 35
36 37 38 39
54
1 2 3 678
1312 14 15 16
22
11109
212019
23 24 25
29 30 3127
28
26
17 18
DESCRIPTION
FUSE
RATING PROTECTED COMPONENT
1 DCDC
*1――
FA N 2*240 A Cooling faní
2 ENG MAIN 40 A Engine control system
3 BTN 1 50 A For protection of various circuits
4 A/C MAG 7.5 A Air conditioner
5 H/L HI 20 A Headlight high beam
6 FOG 15 A Fog lights
í
7 H/L WASH ――
8 SUNROOF 15 A Moonroofí
9 HEATER*140 A Air conditioner
F.DEF RH*2――
10 EVVT*120 A Engine control system
F.DEF LH*2――
11 FAN 1 40 A Cooling faní
12 ROOM 15 A Overhead lights
13 TCM 15 A Transaxle control systemí
14DSC 20 A Dynamic Stability Control systemí
Maintenance and Care
Owner Maintenance
8-61íSome models.
Mazda3_8CV6-EA-12H_Edition3 Page525
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Form No.8CV6-EA-12H
Page 527 of 610
Black plate (527,1)
Fuse block (Left side)
1 4 7 101316195 8 11 14 17 20
6 9 12 15 18 2128 30
22 24 26
29 31
23 25 27 32 33 34
2
3
DESCRIPTION
FUSE
RATING PROTECTED COMPONENT
1 BOSE ――
2 P SEAT 30 A Power seat
í
3P.WIND 30 A Power window
4 D.LOCK 25 A Power door lock
5 ―― ―
6 ―― ―
7 ESCL ――
8 SAS 15 A Air bag
9 ―― ―
10 HAZARD 15 A Hazard warning flashers, Turn signal lights 11 METER 15 A Instrument cluster
12 OUTLET 15 A Accessory sockets
13 R.WIPER 15 A Rear window wiper and washer
í
14CIGAR 15 A Accessory sockets
15 ROOM2 ――
16 HEATER 10 A Air conditioner
17 MIRROR 10 A Power control mirror
18 ST SIG 10 A Engine control system
19 ―― ―
Maintenance and Care
Owner Maintenance
8-63íSome models.
Mazda3_8CV6-EA-12H_Edition3 Page527
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Form No.8CV6-EA-12H
Page 597 of 610

Black plate (597,1)
Personalization Features
The following“Personalization Features ”are available. These settings can only be changed by an Authorized
Mazda Dealer.
Item Feature Factory Setting Available Settings
Illumination entry The time required for the interior lamp to turn
off automatically after all doors are closed can
be changed.
15 seconds 7.5/30/60 seconds
The time required for the interior lamp to
illuminate after unlocking any door can be
changed. 30 seconds 7.5/15/60 seconds
The function allowing the interior lamp to
illuminate automatically when the ignition is
switched off can be deactivated. Activated Deactivated
The function allowing the interior lamp to
illuminate automatically when the doors are
unlocked can be deactivated. Activated Deactivated
The function allowing the interior lamp to turn
off automatically when any door is opened
(or not securely closed) can be changed. Activated Deactivated
The time required for the interior lamp to turn
off automatically can be changed
(prevents battery depletion when a door is
open/ajar). 30 minutes 60/10 minutes
Keyless entry The time required for the doors to relock
automatically after unlocking with the
transmitter can be changed.
30 seconds 60/90 seconds
The flashing of the hazard warning lights when
the doors are locked/unlocked can be changed. Activated Deactivated
The function allowing the horn to sound
automatically when the doors are locked by
pressing the transmitter two times consecutively
can be deactivated. Activated Deactivated
Smart turn The function allowing the turn signal lights to
flash three times with a momentary turn switch
operation (when changing lanes) can be
changed. Deactivated Activated
Personalization Features
10-13
Mazda3_8CV6-EA-12H_Edition3 Page597
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Form No.8CV6-EA-12H
Page 598 of 610

Black plate (598,1)
ItemFeatureFactory Setting Available Settings
Advanced keyless
entry and Start
system The method for unlocking the doors using the
request switch can be selected.
Press × 2 Press × 1
The function to automatically lock the doors
when leaving the vehicle while carrying the key
can be activated. Deactivated Activated
The advanced key's remaining battery level
warning light in the instrument cluster can be
deactivated. Activated Deactivated
The volume of the answer-back beep during
keyless entry system operation can be adjusted. High Low/Deactivated
The volume of the warning beep for the
advanced keyless entry system can be adjusted. High
Low
The advanced key function can be deactivated. Activated Deactivated
The function allowing the power supply to turn
off automatically after the ignition has been left
in the ACC position for a long period of time
can be deactivated. Activated Deactivated
The time required for the doors to relock
automatically after unlocking with the request
switch/transmitter can be changed. 30 seconds 60/90 seconds
The order in which the ignition position
transitions when pressing the push button start
can be changed. ON
→Off ON →ACC →Off
Auto headlight on/off The headlight illumination on/off timing based
on surrounding lightness/darkness can be
changed. Standard
(Illuminates
under average
levels of
darkness) Earlier/
Somewhat earlier/ Somewhat later/
Later
10-14
Personalization Features
Mazda3_8CV6-EA-12H_Edition3 Page598
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Form No.8CV6-EA-12H