check engine MAZDA MODEL 3 HATCHBACK 2018 (in English) Owner's Manual

SignalWarning
Charging System Warn-
ing Light If the warning light illuminates
while driving, it indicates a malfunction of the alter-
nator or of the charging system.
Drive to the side of the road and park off the right-of-way. Co nsult an Authorized
Mazda Dealer.CAUTION
Do not continue driving when the charging system warning light is illuminated be‐
cause the engine could stop unexpectedly.
Engine Oil Warning Light This warning light indicates
low engine oil pressure.
CAUTION
Do not run the engine if the oil pressure is low. Otherwise, it could result in extensive
engine damage.
If the light illuminates or the warning indication is displayed while driving:
1. Drive to the side of the road and park off the right-of-way o n level ground.
2. Turn off the engine and wait 5 minutes for the oil to drain back into the oil pan.
3. Inspect the engine oil level (page 6-24). If it's low, add th e appropriate amount of
engine oil while being careful not to overfill.
CAUTION
Do not run the engine if the oil level is low. Otherwise, it could result in extensive
engine damage.
4. Start the engine and check the warning light.

If the light remains illuminated even though the oil level is normal or after adding oil,
stop the engine immediately and have your vehicle towed to an Authorized Mazda
Dealer.
(Red)
High Engine Coolant
Temperature Warning Light The light flashes when the engine coolant temperature is extrem
ely high, and illumi-
nates when the engine coolant temperature increases further.
Handling Procedure
Flashing light
Drive slowly to reduce engine l oad until you can find a safe place to stop the vehicle
and wait for the engine to cool down.
Illuminated light
This indicates the possibility of overheating. Park the vehicle in a safe place immedi-
ately and stop the engine.
Refer to Overheating on page 7-20.
CAUTION
Do not drive the vehicle with the high engi ne coolant temperature warning light illumi‐
nated. Otherwise, it could result in damage to the engine.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
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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
(Flashing)
Tire Pressure Moni-
toring System Warn-
ing Light
*
If the tire pressure m onitoring system has a malfunction, the t ire pressure warning light
flashes for about 1 minute when the ignition is switched ON and then continues illuminat-
ing. Have your vehicle checked by an Authorized Mazda Dealer as soon as possible.
WARNING
If the tire pressure monitoring system warning light illuminates or flashes, or the tire pres‐
sure warning beep sound is heard, decrease vehicle speed immediately and avoid sudden
maneuvering and braking:
If the tire pressure monitoring system warning light illuminates or flashes, or the tire pres‐
sure warning beep sound is heard, it is dangerous to drive the vehicle at high speeds, or
perform sudden maneuvering or braking. Vehicl e drivability could worsen and result in an
accident.
To determine if you have a slow leak or a flat, pull over to a safe position where you can
check the visual condition of the tire and determine if you have enough air to proceed to a
place where air may be added and the system monitored again by an Authorized Mazda
Dealer or a tire repair station.
Do not ignore the TPMS Warning Light:
Ignoring the TPMS warning light is dangerous, even if you know why it is illuminated. Have
the problem taken care of as soon as possible before it develops into a more serious situa‐
tion that could lead to tire failure and a dangerous accident.
(Red)
(Turns on)
KEY Warning Light If any malfunction occurs in the keyless entry system, it illum
inates continuously.
CAUTION
If the key warning indicator light illuminates or the push button start indicator light (am‐
ber) flashes, the engine may not start. If the en gine cannot be started, try starting it using
the emergency operation for starting the engine , and have the vehicle inspected at an Au‐
thorized Mazda Dealer as soon as possible.
Refer to Emergency Operation for Starting the Engine on page 4- 10.
Security Indicator
Light If the engine does not start with the correct key, and the secu
rity indicator light remains
illuminated or flashing, try the following:
Make sure the key is within the operational range for signal transmission. Switch the igni-
tion off, and then restart the e ngine. If the engine does not s tart after 3 or more tries, con-
tact an Authorized Mazda Dealer.
(Amber)
High Beam Control System (HBC)
Wa r n i n g L i g h t
*
The light remains turned on if th ere is a problem with the system. Have your vehicle in-
spected at an Authorized Mazda Dealer.
NOTE
If the windshield area in fr ont of the Forward Sensing Camera (FSC) is fogged or ob-
structed, the light turns on temporarily. If the light remains turned on, there may be a
problem with the system.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-30*Some models.
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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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▼Blind Spot Monitoring (BSM)
Warning Beep*
Driving forward
The warning beep operates when the turn
signal lever is operated to the side where
the Blind Spot Monit
oring (BSM) warning
light is illuminated.
NOTE
A personalized function is available to
change the Blind Spot Monitoring (BSM)
warning beep sound volume.
Refer to Personalization Features on page
9-12.
Reversing
The Blind Spot Monitoring (BSM)
warning sound is activated if there is a
possibility of collision with a vehicle
approaching from behind and from the
rear on the left and right sides of the
vehicle.
▼ Excessive Speed Warning
If the vehicle speed exceeds the speed
limit sign displayed on the active driving
display, the warning sound is activated and
the area around the speed limit sign
displayed on the active driving display
flashes 3 times in amber, and if the vehicle
speed continues to exceed the displayed
speed limit sign, the indication stops
flashing and remains on.
▼Mazda Radar Cruise Control
(MRCC) System Warnings*
The Mazda Radar Cruise Control (MRCC)
system warnings notify the driver of
system malfunctions and cautions on use
when required.
Check based on the beep sound.
Cautions
What to check
The beep sounds 1 time
while the Mazda Radar
Cruise Control (MRCC)
is operating The vehicle speed is
slower than 25 km/h (16
mph) and the Mazda Ra-
dar Cruise Control
(MRCC) system has
been canceled.
The beep sounds contin-
uously while driving The distance between
your vehicle and the ve-
hicle ahead is too close.
Verify the safety of the
surrounding area and re-
duce vehicle speed.
When the Mazda Radar
Cruise Control (MRCC)
is operating, the beep
sounds and the Mazda
Radar Cruise Control
(MRCC) warning light
(amber) in the instru-
ment cluster turns on. A malfunction in the
system may be indicated.
Have your vehicle in-
spected at an Authorized
Mazda Dealer.
▼
Collision warning*
If there is a possibility
of a collision with a
vehicle ahead or an obs truction at the rear
of the vehicle, the warning light in the
instrument cluster flashes at the same time
as the warning indication is displayed in
the active driving display, and a warning
sound is activated intermittently.
▼ Power Steering Warning Buzzer
If the power steering system has a
malfunction, the power steering
malfunction light turns on or flashes and
the buzzer operates at the same time.
Refer to Warning Lights on page 4-24.
▼
Over Rev. Buzzer*
The buzzer sounds to not
ify the driver if
the engine speed is about to exceed the
permissible engine speed.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-41
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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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SKYACTIV-G 2.5
ItemWeight
GVW (Gross Vehicle Weight) Total
1,865 kg (4,112 lbs)
Front 970 kg (2,138 lbs)
Rear 895 kg (1,973 lbs)
GAW (Permissible axle load) Front
995 kg (2,194 lbs)
Rear 945 kg (2,083 lbs)
▼Air Conditioner
The type of refrigerant used is indicated on a label attached t
o the inside of the engine com-
partment. Check the label before recharging the refrigerant. Refer to Climate Control Sys-
tem on page 5-2.
Item Classification
Refrigerant Type HFC134a (R-134a)
▼Light Bulbs
Exterior light
Light bulb Category
Wat t a ge UNECE*1 (SAE)
Headlights Halogen
High beam 65 HB3 (9005)
Low beam
55H11 (H11)
LED High/Low beam
LED
*2― (―)
Daytime running lights With halogen bulb headlights 65 HB3 (9005)
With LED headlights
LED
*2― (―)
Parking lights (Front side-marker
lights) With halogen bulb headlights 5 WY5W (―)
Front side-marker lights With LED headlights LED
*2― (―)
Parking lights With LED headlights LED
*2― (―)
Front turn signal lights 21 WY21W (7443NA)
Fog lights
*LED*2― (―)
Side turn signal lights
*LED*2― (―)
High-mount brake light LED
*2― (―)
Rear turn signal lights 21 WY21W (7443NA)
Brake lights/Taillights/Rear
side-marker lights LED type
LED
*2― (―)
Bulb type 21/5 W21/5W (7443)
Taillights (Liftgate side/Trunk lid side)
*LED*2― (―)
Specifications
Specifications
*Some models.9-9
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