fuel MAZDA MODEL 3 4-DOOR 2018 Service Manual

SignalWarning
Check Engine LightIf this light illuminates while driving, the vehicle may have a
problem. It is important to
note the driving cond itions when the light illuminated and consult an Authorized Mazda
Dealer.
The check engine light may illumi nate in the following cases:
The fuel tank level being very low or approaching empty.The engine's electrical system has a problem.The emission control system has a problem.The fuel-filler cap is missing or not tightened securely.
If the check engine light remains on, or it flashes continuousl y, do not drive at high speeds
and consult an Authorized Mazd a Dealer as soon as possible.
Automatic Trans-
axle Warning Light*
The indication/light illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning indication/ light illuminates, the transaxle has an electri‐
cal problem. Continuing to drive your Mazda in this condition could cause damage to your
transaxle. Consult an Authorized Mazda Dealer as soon as possible.
(Turns on)
TCS/DSC Indicator
Light If the light stays on, the TCS, DSC or the brake assist system
may have a malfunction and
they may not operate correctly. Take your vehicle to an Authori zed Mazda Dealer.
Air Bag/Seat Belt
Pretensioner System Wa r n i n g L i g h t A system malfunction is
indicated if the warning light constantly flashes, constantly illu-
minates or does not illuminate a t all when the ignition is switched ON. If any of these
occur, consult an Authorized Mazd a Dealer as soon as possible. The system may not oper-
ate in an accident.WARNING
Never tamper with the air bag/pretensioner systems and always have an Authorized Mazda
Dealer perform all servicing and repairs:
Self-servicing or tampering with the systems is dangerous. An air bag/pretensioner could
accidentally activate or become disabled causing serious injury or death.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-29
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SignalWarning Action to be taken
Smart Brake
Support/
Smart City
Brake Sup- port (SBS/
SCBS)Smart City Brake Support(SCBS)
Wa r n i n g
Light
*
The light turns on if the windshield or the radar
sensor are dirty, or there is a malfunction in the
system. The light turns on if the windshield is
dirty or there is a ma lfunction in the system. Verify the reason why the warning light is illu-
minated on the center display.
If the reason why the warning light is illuminat-
ed is due to a dirty windshield, clean the wind-
shield.
If the warning light is illuminated because of a
dirty radar sensor, cl
ean the front emblem.
For any other reasons, have the vehicle inspect-
ed at an Authorized Mazda Dealer.
Low Fuel Wa r n i n g Light The light turns on when the remaining fuel is
about 9.0 L (2.3 US gal, 1.9 Imp gal).NOTE
The light illumination tim
ing may vary because
fuel inside the fuel tank moves around accord-
ing to the driving conditions and the vehicle
posture. Add fuel.
Check Fuel
Cap Warning Light If the check fuel cap warning light illuminates
while driving, the fuel-f
iller cap may not be in-
stalled properly. Stop the engine and reinst
all the fuel-filler cap.
Refer to Fuel-Filler Cap on page 3-29
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-33
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Outside the United States/Canada
Government regulations in the United States/Canada require that automobiles meet specific
emission regulations and safety standards. Therefore, vehicles built for use in the United
States/Canada may differ from those sold in other countries.

The differences may make it difficult or even impossible for yo ur vehicle to receive
satisfactory servicing in other countries. We strongly recommend that you NOT take your
Mazda outside the United States/Canada.

United States
However, in the event that you are moving to Canada permanently, Mazda vehicles built for
use in the United States could be eligible for exportation to C anada with specific vehicle
modifications to comply with the Canadian Motor Vehicle Safety Standards (CMVSS).

Canada
However, in the event that you a re moving to the United States permanently, Mazda
vehicles built for use in Canada could be eligible for exportat ion to the United States with
specific vehicle modifications t o comply with the United States Federal Motor Vehicle
Safety Standards (FMVSS).
NOTE
The above is applicable for a permanent import/export situation and not related to travelers
on vacation.
You may have the following problems if you do take your vehicle outside of the United
States/Canada:
Recommended fuel may be unavailable. Any kind of leaded fuel or low-octane fuel will
affect vehicle performance and damage the emission controls and engine.
Proper repair facilities, tools, testing equipment, and replacement parts may not be
available.
Please refer to your Manufacturer's Warranty Booklet for more information.
Customer Information and Reporting Safety Defects
Wa r r an t y
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Registering Your Vehicle in A Foreign Country (Except
United States and Canada)
Registering your vehicle in a foreign country may be problemati c depending on whether it
meets the specific emission and safety standards o f the country in which the vehicle will be
driven. Consequently, your vehicle may require modifications at personal expense in order
to meet the regulations.
In addition, you should be awa re of the following issues:
Satisfactory vehicle servicing ma y be difficult or impossible in another country.

The fuel specified for your vehicle may be unavailable.

Parts, servicing techniques, and tools necessary to maintain an d repair your vehicle may be
unavailable.

There might not be an Authorized Mazda Dealer in the country yo u plan to take your
vehicle.

The Mazda warranty is valid only in certain countries.
Customer Information and Reporting Safety Defects
War r a n ty
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Base Curb Weight is the weight of the vehicle including a full tank of fuel and all
standard equipment. It does not include passengers, cargo, or optional equipment.

Vehicle Curb Weight is the weight of your new vehicle when you picked it up from y our
dealer plus any aftermarket equipment.

PAYLOAD
Payload is the combination weight of cargo and passengers that the veh icle is designed to
carry. The maximum payload for your vehicle can be found on the Tire and Load
Information label on t he driver's door frame or door pillar. Look for “THE COMBINATION
WEIGHT OF OCCUPANTS AND CARGO SHOULD NEVER EXCEED XXX kg or XXX
lbs” for your maximum payload. The payload listed on the tire l abel is the maximum
payload for the vehicle as built by the assembly plant. If any aftermarket or dealer installed
equipment has been installed on the vehicle, the weight of the equipment must be subtracted
from the payload listed on the tire label in order to be accura te.

Customer Information and Reporting Safety Defects
Tire Information (U.S.A.)
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▼Capacities
(Approximate Quantities)
Item
Capacity
Engine oil SKYACTIV-G
2.0
With oil filter replacement
4.2 L (4.4 US qt, 3.7 Imp qt)
Without oil filter replacement 4.0 L (4.2 US qt, 3.5 Imp qt)
SKYACTIV-G
2.5 With oil filter replacement
4.5 L (4.8 US qt, 4.0 Imp qt)
Without oil filter replacement 4.3 L (4.5 US qt, 3.8 Imp qt)
Coolant SKYACTIV-G
2.0
For vehicle identi-
fication number
beginning with
JM1
*1
Manual transaxle 6.3 L (6.7 US qt, 5.5 Imp qt)
Automatic transaxle 6.5 L (6.9 US qt, 5.7 Imp qt)
For vehicle identi-
fication number
beginning with
3MZ
*1
Manual transaxle 6.2 L (6.6 US qt, 5.5 Imp qt)
Automatic transaxle 6.5 L (6.9 US qt, 5.7 Imp qt)
SKYACTIV-G
2.5 For vehicle identi-
fication number
beginning with
JM1
*1
Manual transaxle 6.5 L (6.9 US qt, 5.7 Imp qt)
Automatic transaxle
(U.S.A. and Canada)
6.8 L (7.2 US qt, 6.0 Imp qt)/ (Mexico)
6.7 L (7.1 US qt, 5.9 Imp qt)
For vehicle identi-
fication number
beginning with
3MZ
*1
Manual transaxle 6.5 L (6.9 US qt, 5.7 Imp qt)
Automatic transaxle 6.7 L (7.1 US qt, 5.9 Imp qt)
Manual transaxle oil SKYACTIV-G 2.0 1.70 L (1.80 US qt, 1.50 Imp qt)
SKYACTIV-G 2.5 1.65 L (1.74 US qt, 1.45 Imp qt)
Automatic transaxle fluid 7.8 L (8.2 US qt, 6.9 Imp qt)
Fuel tank U.S.A. and Canada 50.0 L (13.2 US gal, 11.0 Imp gal)
Mexico 51.0 L (13.5 US gal, 11.2 Imp gal)
Check oil and fluid levels with d
ipsticks or reservoir gauges.*1 Check the vehicle identificati on number on the vehicle identification number plate. Refer to Vehicle
Identification Number on page 9-2.
Specifications
Specifications
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Personalization Features
The following personalization features can be set or changed by the customer or an Author-
ized Mazda Dealer. Consult an Authorized Mazda Dealer for detai ls.
Additionally, some of the personalization features can be chang ed by the customer depend-
ing on the feature.
Personalization features and settings which can be changed diff er depending on the market
and specification.
Settings Change Method
Settings can be changed by oper ating the center display screen.
A: Refer to Settings on page 5-50.
B: Refer to Fuel Economy Monitor on page 4-72.
C: Refer to Active Driving Display on page 4-20.
Settings can be changed by op erating the vehicle switches.
D: Refer to Auto Lock/Unlock Function on page 3-16.
E: Refer to Transmitter on page 3-4.
F: Refer to Locking, Unlocking with Request Switch (With the ad vanced keyless function)
on page 3-13.
Settings can be changed by an Authorized Mazda Dealer.
Item FeatureFactory Set-
ting Available Set-
tings Settings
Change
Method
Safety
Smart Brake
Support (SBS)
(page 4-128) The system can be ch
anged so that Smart
Brake Support (SBS) does not operate.
*1On On/Off A ―
The distance at which the collision warning ac-
tivates can be changed. Med Far/Med/Near A ―
The volume of the collision warning can be
changed.High High/Low/Off A ―
Smart City
Brake Support
(SCBS) (page
4-124)The system can be chan
ged so that Smart City
Brake Support (SCBS) does not operate.
*1On On/Off A ―
Specifications
Personalization Features
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ItemFeatureFactory Set-
ting Available Set-
tings Settings
Change
Method
Adaptive Front
Lighting System
(AFS) (page
4-80) Operational/non-operational
*1On On/Off A ―
Lights-on re-
minder*7 (page
7-38) Warning beep volume High High/Low/Off A ―
Coming home
light (page 4-46)
Time until headlights
turn off 30 seconds 120 seconds/
90 seconds/
60 seconds/
30 seconds/ Off A―
Leaving home
light (page 4-47)
Operational/non-operational On On/Off A ―
Turn signal indi-
cator (page 4-
48)Beep volume High High/Low A ―
Three-flash turn
signal (page
4-49)Operational/non-operational On On/Off A ―
Rear window
defogger (page
4-53)The operation time for th
e rear window defog-
ger can be changed. 15 minutes15 minutes/
Continuous
*8――
System
Language Language indicated in display US EnglishDepends on
market
*9A―
Temperature Temperature unit indicated in display °F or °C °F/°C A ―
Distance Distance unit indicated in display miles or km miles/km A ―
Fuel Economy Monitor (page 4-72)
Ending display Display/non-display Off On/Off B ―
Fuel economy
resetting proce-
dureLinkage/non-linkage with fuel economy reset
and trip meter A reset
Off On/Off B ―
Specifications
Personalization Features
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Index
Aluminum Wheel Maintenance... 6-68
Bright-Metal Maintenance...........6-67
Maintaining the Finish................ 6-64
Plastic Part Maintenance............. 6-68
F
FlasherHazard warning........................... 4-56
Headlights.................................... 4-43
Flat Tire............................................... 7-3 Mounting the Spare Tire..............7-11
Removing a Flat Tire.................... 7-7
Floor Mat.......................................... 3-46
Fluid Brake/Clutch................................ 6-27
Washer......................................... 6-27
Fluids Classification................................. 9-4
Fog Lights......................................... 4-48
Foot Brake.........................................4-60
Forward Sensing Camera (FSC)..... 4-131
Front Seat............................................ 2-5
Fuel Filler lid and cap......................... 3-28
Gauge........................................... 4-15
Requirements............................... 3-25
Tank capacity.................................9-5
Fuel Consumption Display............... 4-72
Fuel Economy Monitor..................... 4-72 Control status display.................. 4-73
Ending screen display................. 4-73
Fuel consumption display............4-72
Fuses.................................................. 6-57 Panel description......................... 6-59
Replacement................................ 6-57
G
Gauges............................................... 4-12
Glove Compartment........................ 5-136
H
Hazardous Driving............................ 3-46
Hazard Warning Flasher....................4-56
HeadlightsComing home light......................4-46
Control......................................... 4-43
Flashing....................................... 4-46
High-low beam............................ 4-46
Leaving home light..................... 4-47
Leveling....................................... 4-47
Head Restraint................................... 2-10
High Beam Control System
(HBC)................................................ 4-81 High Beam Control System (HBC)
indicator light (green)..................4-82
Hill Launch Assist (HL A)................ 4-64
HomeLink Wireless Control
System............................................... 4-56
Hood Release............. ....................... 6-20
Horn...................................................4-55
I
If a Warning Light Turns On or
Flashes............................................... 7-25
If the Active Driving Display does not
operate............................................... 7-45
Ignition
Switch............................................ 4-4
Ignition not switched off (STOP)
warning beep..................................... 7-39
Immobilizer System..... ..................... 3-41
Indicator Lights................................. 4-25 Low engine coolant
temperature.................................. 4-28
Wrench......................................... 4-28
Inside Trunk Release Lever.............. 3-24
Inspecting Brake/Clutch Fluid
Level.................................................. 6-27
Inspecting Coolant Level.................. 6-25
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Index
Viewing the display................... 4-153
Rear Window Defogger. ................... 4-53
Rear Window Washer....................... 4-53
Rear Window Wiper.... ..................... 4-53
Recommended Oil.............................6-23
Recording of Vehicle Data................ 8-22
Recreational Towing......................... 3-52
Registering Your Vehicle in A Foreign
Country.............................................. 8-18
Replacement Fuse..............................................6-57
Key battery.................................. 6-35
Light Bulbs.................................. 6-42
Tires............................................. 6-40
Wheel........................................... 6-41
Wiper........................................... 6-29
Rocking the Vehicle.......................... 3-47
S
Safety Defects, Reporting................. 8-14
Satellite Radio................................... 5-44
Saving Fuel and Protection of the
Environment...................................... 3-45
Scheduled Maintenance...................... 6-4
Seats Front seat....................................... 2-5
Head restraint.............................. 2-10
Rear seat........................................ 2-7
Seat warmer................................... 2-6
Seat Belt System Automatic locking....................... 2-14
Emergency locking...................... 2-14
Extender....................................... 2-18
Pregnant women.......................... 2-14
3-point type................................. 2-15
Seat belt warning beep...................... 7-38
Security System Immobilizer system..................... 3-41
Theft-deterrent system................. 3-43
Smart Brake Support (SBS)............ 4-128
Collision warning...................... 4-130
Smart Brake Support (SBS) indicator
light (red)................................... 4-130
Stopping the Smart Brake Support
(SBS) system operation............. 4-130
Smart City Brake Support
(SCBS)............................................ 4-124
Collision warning...................... 4-126
Smart City Brake Support (SCBS)
Indicator Light (Red).................4-126
Stopping the Smart City Brake
Support (SCBS) System
Operation................................... 4-127
Spare Tire............................................ 7-5
Specifications...................................... 9-4
Speedometer...................................... 4-13
Speed Unit Selector.......................... 4-13
SRS Air Bags Front passenger occupant
classification system.................... 2-61
How the SRS air bags work........ 2-53
Limitations to SRS air bag.......... 2-59
Monitoring................................... 2-65
SRS air bag deployment
criteria.......................................... 2-58
Supplemental restraint system
components.................................. 2-51
Starting the Engine..............................4-5
Steering Wheel.................................. 3-30
Horn............................................. 4-55
Storage Compartments.................... 5-136
Center console........................... 5-136
Glove compartment................... 5-136
Overhead console...................... 5-136
Rear coat hooks......................... 5-138
Sunshade............................................3-40
Sunvisors......................................... 5-129
T
Tachometer........................................ 4-15
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