ECU MAZDA MODEL 3 4-DOOR 2015 Workshop Manual

7–6
If Trouble Arises
Flat Tire
To remove the spare tire
1. Lift the trunk/luggage compartment mat.
Trunk/Luggage compartment mat
2. Turn the spare tire hold-down bolt counterclockwise.
Spare tire hold-down bolt
To secure the spare tire
Store the spare tire in the reverse order
of removal. After storing, verify that the
spare tire is stored securely.
Changing a Flat Tire
NOTE
If the following occurs while driving, it
could indicate a fl at tire.
 y Steering becomes diffi cult. y The vehicle begins to vibrate
excessively.
 y The vehicle pulls in one direction.
If you have a fl at tire, drive slowly to a
level spot that is well off the road and out
of the way of traffi c to change the tire.
Stopping in traffi c or on the shoulder of a
busy road is dangerous.
WARNING
Be sure to follow the directions for
changing a tire: Changing a tire is dangerous if not
done properly. The vehicle can slip off
the jack and seriously injure someone.
No person should place any portion
of their body under a vehicle that is
supported by a jack.

Never allow anyone inside a vehicle
supported by a jack: Allowing someone to remain in
a vehicle supported by a jack is
dangerous. The occupant could cause
the vehicle to fall resulting in serious
injury.
NOTE
Make sure the jack is well lubricated
before using it.
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7–12
If Trouble Arises
Flat Tire
4. Turn the lug wrench counterclockwise and lower the vehicle. Use the lug
wrench to tighten the nuts in the order
shown.
If you are unsure of how tight the nuts should be, have them inspected at an
Authorized Mazda Dealer.
Nut tightening torque
N·m (kgf·m, ft·lbf) 108—147
(12—14, 80—108)
WARNING
Always securely and correctly tighten
the lug nuts:
Improperly or loosely tightened lug
nuts are dangerous. The wheel could
wobble or come off . This could result
in loss of vehicle control and cause a
serious accident.

Be sure to reinstall the same nuts you
removed or replace them with metric
nuts of the same confi guration:
Because the wheel studs and lug nuts
on your Mazda have metric threads,
using a non-metric nut is dangerous.
On a metric stud, it would not secure
the wheel and would damage the stud,
which could cause the wheel to slip off
and cause an accident.
5. Open the trunk/luggage compartment mat.
Trunk/Luggage compartment mat
6. Remove the belt for securing the fl at
tire.
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7–14
If Trouble Arises
Flat Tire
11. Pass the buckle through the wheel as shown in the fi gure and secure it so that
the buckle does not contact the wheel.
(Aluminum wheel)
(Steel wheel)
12. Pass the belt through the buckle, then pull the belt end to secure the fl at tire.
13. (Split-folding type seat)
Return the rear seatback on the right
side of the rear seatback to its original
position.
14. Remove the tire blocks and store the tools and jack.
15. Check the infl ation pressure. Refer to
Tires on page 9-10 .
16. Have the fl at tire repaired or replaced
as soon as possible.
NOTE
Do not press the tire pressure monitoring
system set switch after installing the spare
tire. The switch is only to be pressed after
installing the repaired fl at tire or installing
a replacement tire (page 4-20 ).
WARNING
Do not drive with any tires that have
incorrect air pressure:
Driving on tires with incorrect air
pressure is dangerous. Tires with
incorrect pressure could aff ect
handling and result in an accident.
When you check the regular tires' air
pressure, check the spare tire, too.
NOTE
To prevent the jack and tool from rattling,
store them properly.
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7–17
If Trouble Arises
Battery Runs Out
1. Remove the battery cover.
2. Make sure the booster battery is 12 V and that its negative terminal is
grounded.
3. If the booster battery is in another vehicle, do not allow both vehicles
to touch. Turn off the engine of the
vehicle with the booster battery and
all unnecessary electrical loads in both
vehicles.
4. Connect the jumper cables in the exact sequence as in the illustration.
y Connect one end of a cable to the positive terminal on the discharged
battery (1).
y Attach the other end to the positive terminal on the booster battery (2).
y Connect one end of the other cable to the negative terminal of the booster
battery (3).
y Connect the other end to the ground point indicated in the illustration away
from the discharged battery (4).
5. Start the engine of the booster vehicle and run it a few minutes. Then start the
engine of the other vehicle. 6. (With i-ELOOP system)
The i-ELOOP indicator light may fl
ash
after the engine is started. The indicator
light turns off when the engine is
running and the charging is completed.
Make sure the i-ELOOP indicator light
is turns off before driving.
NOTE
 y  If the vehicle is driven with the
i-ELOOP indicator light fl ashing, a
beep sound is heard.
 y If the steering wheel is operated with
the i-ELOOP indicator light fl ashing, it
may feel heavier than normal, however,
this does not indicate a malfunction.
The steering operation will return to
normal when the i-ELOOP indicator
light turns off.
 y  Do not remove the jumper cables while
the i-ELOOP indicator light is fl ashing.
7. When fi nished, carefully disconnect the
cables in the reverse order described in
the illustration.
8. If the battery cover has been removed, install it in the reverse order of
removal.
NOTE
Verify that the covers are securely
installed.
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*Some models.7–22
If Trouble Arises
Emergency Towing
Tiedown Hooks *
CAUTION
Do not use the front and rear tiedown
eyelets for towing the vehicle.
They have been designed only for
securing the vehicle to a transport
vessel during shipping.
Using the eyelets for any other purpose
could result in the vehicle being
damaged.
Tiedown Hooks
1. Remove the tiedown eyelet and the lug wrench from the luggage compartment
(page 7-3 ).
2. Wrap a fl athead screwdriver or similar
tool with a soft cloth to prevent damage
to a painted bumper, and open the cap
located on the front or rear bumper.
Front
Rear
CAUTION
Do not use excessive force as it may
damage the cap or scratch the painted
bumper surface.
NOTE
Remove the cap completely and store it so
as not to lose it.
3. Securely install the tiedown eyelet using the lug wrench.
Front
Lug wrench
Tiedown eyelet
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7–23
If Trouble Arises
Emergency Towing
Rear
Lug wrench
Tiedown eyelet
4. Hook the tying rope to the tiedown eyelet.
CAUTION
If the tiedown eyelet is not securely
tightened, it may loosen or disengage
from the bumper when tying the
vehicle. Make sure that the tiedown
eyelet is securely tightened to the
bumper.
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*Some models.7–27
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Signal Warning
ABS Warning Light 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 a\
s if the vehicle had
no ABS.
Should this happen, consult an Authorized Mazda Dealer as soon as possible. NOTE
yWhen the engine is jump-started to charge the battery, uneven rpm occurs and the ABS
warning light may illuminate. If this occurs, it is the result of the weak battery and does
not indicate an ABS malfunction.
Recharge the battery.
yThe brake assist system does not operate while the ABS warning light is illuminated.
Check Engine Light If this light illuminates while driving, the vehicle may have a problem.\
It is important to
note the driving conditions when the light illuminated and consult an Authorized Mazda
Dealer.
The check engine light may illuminate in the following cases:
y The fuel tank level being very low or approaching empty. y The engine's electrical system has a problem. y The emission control system has a problem. y The fuel-fi
ller cap is missing or not tightened securely.
If the check engine light remains on, or it fl ashes continuously , do not drive at high speeds
and consult an Authorized Mazda Dealer as soon as possible.
Automatic
Transaxle Warning Light
*
The light/indication illuminates when the transaxle has a problem.
CAUTION
If the automatic transaxle warning light illuminates, the transaxle has an electrical
problem. Continuing to drive your Mazda in this condition could cause damage to your
transaxle. Consult an Authorized Mazda Dealer as soon as possible.
Air Bag/Seat
Belt Pretensioner System Warning Light A system malfunction is indicated if the warning light constantly fl
ashes, constantly
illuminates or does not illuminate at all when the ignition is switched \
ON. If any of these
occur, consult an Authorized Mazda Dealer as soon as possible. The system may not operate
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.
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*Some models.7–30
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
Signal Warning Action to be taken
Seat Belt
Warning Light
The seat belt warning light illuminates if the driver or front passenger\
's seat is occupied and the
seat belt is not fastened with the ignition switched ON.
Seat belt reminder
If the vehicle is driven with the driver or front passenger's seat belt \
unfastened, the seat belt
warning light illuminates and a warning beep sounds.
NOTE
If the driver or front passenger's seat belt is unfastened (only when the front passenger seat is
occupied) and the vehicle is driven at a speed faster than about 20 km/\
h (12 mph), the warning
light will fl ash and a beep sound will be heard. After a short time, the warning light stops fl ashing,
but remains illuminated, and the beep sound stops.
Until a seat belt is fastened or a given period of time has elapsed, the\
beep sound will not stop even
if the vehicle speed falls below 20 km/h (12 mph).
NOTE
yThe warning light fl ashes and a beep sound will be heard for about 6 seconds if the driver's seat
belt is not fastened when the ignition is switched ON.
yIf a driver or front passenger's seat belt is unfastened after the beep sound turns off (\
warning light remains illuminated), and the vehicle speed exceeds 20 km/h (12 mph), \
the warning light fl ashes
and beep sound activates again.
yPlacing heavy items on the front passenger seat may cause the front passenger seat belt warning function to operate depending on the weight of the item.
yTo allow the front passenger seat weight sensor to function properly, do not place and sit on an additional seat cushion on the front passenger seat. The sensor may not function properly because
the additional seat cushion could cause sensor interference.
yWhen a small child sits on the front passenger seat, it is possible that the warning light will not operate.
Door-Ajar Warning Light The light turns on if any door is not closed
securely.
Close the door securely.
Low Washer
Fluid Level Warning Light
*
This warning light indicates that little washer
fl uid remains. Add washer fl
uid (page 6-31 ).
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10–7
Index
Security System Immobilizer system ....................... 3-41
Theft-deterrent system .................. 3-43
Sensor Radar Sensor ................................. 4-64
Service Publications ............................ 8-50
Smart City Brake Support (SCBS) ..... 4-71
Deactivating the Smart City Brake
Support (SCBS) System operation
... 4-77
Laser sensor handling .................... 4-75
Smart City Brake Support (SCBS)
Indicator Light (Red)..................... 4-77
Spare Tire .............................................. 7-5
Specifi cations ........................................ 9-4
Speed Unit Selector ............................. 4-12
Speedometer ........................................ 4-12
Starting the Engine ................................ 4-5
Steering Wheel .................................... 3-32 Horn............................................... 4-57
Storage Compartments ...................... 5-140 Center console ............................. 5-141
Glove compartment ..................... 5-140
Overhead console ........................ 5-140
Rear coat hooks ........................... 5-141
Sunshade ............................................. 3-40
Sunvisors ........................................... 5-134
T
Tachometer .......................................... 4-13
Theft-Deterrent System ....................... 3-43
Tiedown Hook .............................................. 7-22
Tire Information .................................. 8-24
Tire Pressure Monitoring System ..... 4-103
Tire infl ation pressure warning beep ... 7-37 Tires .................................................... 6-42
Flat Tire ........................................... 7-3
Replacing a Tire ............................ 6-44
Replacing a Wheel ........................ 6-45
Snow tires ...................................... 3-48
Specifi cations ................................ 9-10
Temporary Spare Tire .................... 6-44
Tire Infl ation Pressure ................... 6-42
Tire Rotation ................................. 6-43
Tire chains ..................................... 3-48
Uniform tire quality grading system
(UTQGS) ....................................... 8-22
Towing Recreational towing ...................... 3-52
Trailer Towing ............................... 3-52
Towing Description ............................. 7-21
Traction Control System (TCS) .......... 4-79 TCS/DSC Indicator Light ............. 4-79
Transmitter ............................................ 3-4
Trip Computer ..................................... 4-16
Trip Meter ........................................... 4-12
Trouble Battery runs out ............................. 7-15
Emergency Starting ....................... 7-18
Emergency Towing........................ 7-21
Flat Tire ........................................... 7-3
Overheating ................................... 7-19
Parking in an Emergency ................ 7-2
When liftgate/trunk lid cannot be
opened ........................................... 7-39
Trunk Lid ............................................ 3-20
Inside trunk release lever .............. 3-25
When liftgate/trunk lid cannot be
opened ........................................... 7-39
V
Vanity Mirrors ................................... 5-134
Vehicle Information Labels ................... 9-2
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