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qBrake System Warning Light
This warning has the following functions:
Parking brake warning
The light comes on when the parking
brake is applied with the ignition switch
in the START or ON position. It goes off
when the parking brake is fully released.
Low brake fluid level warning
If the light stays on after the parking brake
is fully released, you may have a brake
problem.
Drive to the side of the road and park off
the right-of-way.
You may notice that the pedal is harder to
push or that it may go closer to the floor.
In either case, it will take longer to stop
the vehicle.
1. With the engine stopped, check the
brake fluid level immediately and add
fluid as required (page 8-23).
2. After adding fluid, check the light
again.
If the warning light remains on, or if the
brakes do not operate properly, do not
drive the vehicle. Have it towed to an
Authorized Mazda Dealer.
Even if the light goes out have your brake
system inspected as soon as possible by
an Authorized Mazda Dealer.NOTE
Having to add brake fluid is sometimes an
indicator of leakage. Consult an Authorized
Mazda Dealer as soon as possible even if the
brake light is no longer illuminated.
WARNING
Do not drive with the brake system
warning light illuminated. Contact an
Authorized Mazda Dealer to have the
brakes inspected as soon as possible:
Driving with the brake system
warning light illuminated is
dangerous. It indicates that your
brakes may not work at all or that
they could completely fail at any
time. If this light remains
illuminated, after checking that the
parking brake is fully released, have
the brakes inspected immediately.
qABS Warning Lightí
The warning light stays on for a few
seconds when the ignition switch is turned
to the ON position.
If the ABS warning light stays on while
you're driving, the ABS control unit has
detected a system malfunction. If this
occurs, your brakes will function normally
as if the vehicle had no ABS.
Should this happen, consult an Authorized
Mazda Dealer as soon as possible.
Driving Your Mazda
Warning/Indicator Lights and Beep Sounds
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Form No.8X41-EA-07F
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NOTE
When the engine is jump-started to charge the
battery, uneven rpm occurs and the ABS
warning light comes on. This is due to a weak
battery, not a malfunction.
Recharge the battery.
qElectronic Brake Force
Distribution System Warningí
If the electronic brake force distribution
control unit determines that some
components are operating incorrectly, the
control unit may turn the brake system
warning light and the ABS warning light
on at the same time. The problem is likely
to be the electronic brake force
distribution system.
WARNING
Do not drive with both the ABS warning
light and brake warning light
illuminated. Have the vehicle towed to
an Authorized Mazda Dealer to have
the brakes inspected as soon as
possible:
Driving when the brake system
warning light and ABS warning light
are illuminated at the same time is
dangerous.
When both lights are illuminated, the
rear wheels could lock more quickly
in an emergency stop than under
normal circumstances.
qCharging System Warning Light
This warning light illuminates when the
ignition switch is turned to the ON
position and turns off when the engine is
started.
If the warning light illuminates while
driving, it indicates a malfunction of the
alternator or of the charging system.
Drive to the side of the road and park off
the right-of-way. Consult an Authorized
Mazda Dealer.
CAUTION
Don't continue driving when the
charging system warning light is
illuminated because the engine could
stop unexpectedly.
qEngine Oil Pressure Warning Light
This warning light illuminates when the
ignition switch is turned to the ON
position and turns off when the engine is
started.
This warning light indicates low engine
oil pressure.
5-40
Driving Your Mazda
íSome models.
Warning/Indicator Lights and Beep Sounds
Mazda3_8X41-EA-07F_Edition2 Page158
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Form No.8X41-EA-07F
Page 321 of 394
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qFuse Panel Description
Fuse block (Engine compartment)
12 3 45 6
789 10
11 12
13 14
15 16
17 18
1920 2122 23
24 25 26
27 2829
3031 3233 3435 36
Without turbocharger
DESCRIPTION FUSE RATING PROTECTED COMPONENT
1 FAN 40A Cooling fan
2 P/ST 80A Power steering
3 BTN 40A For protection of various circuits
4 HEAD 40A Headlights
5 PTC――
6 GLOW――
7 ABS 1 30A ABS
í, DSCí
8 ABS 2 20A ABSí, DSCí
9 ENGINE 30A For protection of various circuits
10―― ―
11 IG KEY 1 30A Ignition switch
12 STARTER 20A Starter clutch
13 IG KEY 2 30A Ignition switch
14 GLOW 1――
15 HEATER 40A Blower motor
16 GLOW 2――
17 DEFOG 40A Rear window defroster
Maintenance and Care
Owner Maintenance
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Form No.8X41-EA-07F
Page 322 of 394

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DESCRIPTION FUSE RATING PROTECTED COMPONENT
18 AUDIO 30AAudio system
(BOSE Sound System-equipped model)
19 ABS IG 10A ABS
í, DSCí
20 FOG 15A Front fog lightsí
21 HORN 15A Horn
22 DRL 10A DRLí
23 H/CLEAN――
24 F/PUMP 15A Fuel pump
25 P/ST IG 10A Power steering
26 A/C MAG 10A Air conditioner
í
27 ALT/TCM 10A/15A TCMí
28 GLOW SIG――
29 P.OUTLET―Power outlet
30 ENG +B 10A PCM
31 ROOM 15A Interior lights
32 ENG BAR 4 10A O
2sensorsí
33 ENG BAR 3 10A O2sensors
34 EGI INJ 10A Injector
35 ENG BAR 1 10A For protection of various circuits
36 ENG BAR 2 10A PCM, Fuel pump
With turbocharger
DESCRIPTION FUSE RATING PROTECTED COMPONENT
1 FAN 70A Cooling fan
2―― ―
3 BTN 40A For protection of various circuits
4 HEAD 40A Headlights
5 F/PUMP 30A Fuel pump
6―― ―
7 ABS 1 30A ABS, DSC
8 ABS 2 20A ABS, DSC
9 ENGINE 30A For protection of various circuits
10 INJECTOR 30A Fuel injector
11 IG KEY1 30A Ignition switch
12 STARTER 20A Starter clutch
13 IG KEY2 30A Ignition switch
14―― ―
15 HEATER 40A Blower motor
16―― ―
17 DEFOG 40A Rear window defroster
18 AUDIO 30AAudio system
(BOSE Sound System-equipped model)
8-54
Maintenance and Care
íSome models.
Owner Maintenance
Mazda3_8X41-EA-07F_Edition2 Page322
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Form No.8X41-EA-07F
Page 323 of 394
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DESCRIPTION FUSE RATING PROTECTED COMPONENT
19 ABS IG 10A ABS
20 FOG 15A Front fog lights
21 HORN 15A Horn
22 DRL 10A DRL
í
23 H/CLEAN――
24 ETC 10A Elec. throttle valve
25―― ―
26 A/C MAG 10A Air conditioner
27―― ―
28―― ―
29 P.OUTLET 15A Power outlet
30 ENG +B 10A PCM
31 ROOM 15A Interior lights
32―― ―
33 ENG BAR 3 10A O
2sensors
34―― ―
35 ENG BAR 1 15A For protection of various circuits
36 ENG BAR 2 10A PCM, Fuel pump
Maintenance and Care
Owner Maintenance
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Form No.8X41-EA-07F
Page 325 of 394

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DESCRIPTION FUSE RATING PROTECTED COMPONENT
56 P/WIND L――
57 ALARM――
58 M/DEF 7.5A Mirror Defroster
í
59―― ―
60 HEAD LOW R 15A Headlight low beam (RH), Headlight leveling
61 HEAD LOW L 15A Headlight low beam (LH)
62―― ―
63―― ―
64―― ―
65 SAS 10A Supplemental restraint system
66 METER 10A Instrument cluster, Immobilizer system
67 IGNITION 20A ABS
í, DSCí, Power steering
68 WIPER 20A Windshield wiper and washer
69 ENGINE 20A For protection of various circuits
70 IG SIG 10A Auto wiper
í, Power window switchí
71 SAS 2 7.5A Seat weight sensor
72―― ―
73―― ―
74 SEAT WARM 20A Seat warmer
í
75 D/LOCK 1 25A Power door lockí
76 A/C 10A Air conditionerí, Heater control unit
77 P/WIND L 30A Power window (LH)í
78 P/WIND R 30A Power window (RH)í
79 BACK 10A Reverse lights
80 SUN ROOF 7.5A Moonroofí
81 TAIL L 7.5A Taillight (LH), Parking light (LH)
82 ILLUMI 7.5A Illumination
83―― ―
84―― ―
85―― ―
86―― ―
Maintenance and Care
Owner Maintenance
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Form No.8X41-EA-07F
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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, they could affect your
vehicle's performance or safety systems; the Mazda warranty doesn't cover this. Before you
install any non-genuine parts or accessories, consult an Authorized Mazda Dealer.
WARNING
Always consult an Authorized Mazda Dealer before you install non-genuine parts or
accessories:
Installation of non-genuine parts or accessories is dangerous. 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 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.
9-16
Customer Information and Reporting Safety Defects
Warranty
Mazda3_8X41-EA-07F_Edition2 Page348
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Form No.8X41-EA-07F
Page 366 of 394

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Vehicle Loading
WARNING
Do not taw a trailer with this vehicle:
Towing a trailer with this vehicle is dangerous because it has not been designed to
tow a trailer and doing so will affect the drive system which could result in vehicle
damage.
This section will guide you in the proper loading of your vehicle and/or trailer, to keep
your loaded vehicle weight within its design rating capability, with or without a trailer.
Properly loading your vehicle will provide maximum return of vehicle design performance.
Before loading your vehicle, familiarize yourself with the following terms for determining
your vehicle's weight ratings, with or without a trailer, from the vehicle's Safety
Certification Label and Tire and Load Information Label:
WARNING
Overloaded Vehicle:
Overloading a vehicle is dangerous. The results of overloading can have serious
consequences in terms of passenger safety. Too much weight on a vehicle's
suspension system can cause spring or shock absorber failure, brake failure,
handling or steering problems, irregular tire wear, tire failure or other damage.
Overloading makes a vehicle harder to drive and control. It also increases the
distance required for stopping. In cases of serious overloading, brakes can fail
completely, particularly on steep grades. The load a tire will carry safely is a
combination of the size of the tire, its load range, and corresponding inflation
pressure.
Never overload the vehicle and always observe the vehicle's weight ratings from the
vehicle's Safety Certification and Tire and Load Information labels.
9-34
Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
Mazda3_8X41-EA-07F_Edition2 Page366
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Form No.8X41-EA-07F