2022 MAZDA MODEL 3 SEDAN ECU

(Vehicles with flat tire hold-down
bolt (excluding vehicles with
sub-woofer for 5-door))
1. Spread apart the tabs on thespare tire hold-down bolt that
was removed when removing
the spare tire and remove the
bolt for securing the spare tire.
1. Tabs
2. Bolt for securing spare tire
3. Spare tire hold-down bolt

2. Remove the bolt for securing the
flat tire from its stored position
and install it in place of the
removed spare tire hold-down
bolt.
1. Bolt for securing the flat tire
2. Spare tire hold-down bolt

NOTE
The longer bolt is used as the
bolt for securing the flat tire,
and the shorter one is used as
the bolt for securing the spare
tire. When installing a bolt,
check the bolt's length.
3. Secure the damaged tire to the vehicle using the flat tire
hold-down bolt.
(Vehicles with flat tire hold-down
bolt and with sub-woofer for
5-door))
1. Remove the bolt for securing theflat tire from its stored position.
2. Secure the damaged tire to the vehicle using the flat tire
hold-down bolt.
1. Flat tire hold-down bolt
2. Sub-woofer

If Trouble Arises
Flat Tire
7-14
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22

(Vehicles without flat tire
hold-down bolt)
1. Secure the damaged tire to thevehicle using the spare tire
hold-down bolt removed when
removing the spare tire.
9. Place the trunk mat (4-door) orluggage mat (5-door) on the
damaged tire.
10.Remove the tire blocks and store
the tools and jack.
11.Check the inflation pressure. Refer to Tires on page 9-10.
12.Have the flat tire repaired or replaced as soon as possible.
13.After repairing or replacing the flat tire, install the wheel cover
(vehicles with steel wheels) or
center cap (vehicles with aluminum
wheels) using the following
procedure.
(Wheel cover)
1. Align the notch on the wheel cover with the tire valve of the
wheel and install the wheel
cover to the wheel.
1. Notch
2. Tire valve
CAUTION
Always align the notch on the
wheel cover with the tire valve
of the wheel. Otherwise, it
could cause damage to the
wheel cover and the tire valve.
(Center cap)
1. Align the center cap with the center hole of the wheel and
install the center cap to the
wheel.
If Trouble Arises
Flat Tire
7-15
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22

Do not tow with sling-type
equipment. This could damage your
vehicle. Use wheel-lift or flatbed
equipment.
If the parking brake cannot be
released when towing the vehicle,
transport the vehicle with all front
and rear wheels raised off the ground
as shown in the figure. If the vehicle
is towed without raising the wheels
off the ground, the brake system
could be damaged.
1. Wheel dollies
Tiedown Hooks*
▼ 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.
1. Remove the tiedown eyelet and the
lug wrench from the luggage
compartment (page 7-3).
2. Wrap a flathead 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
(4–Door)
If Trouble Arises
Emergency Towing
7-24*Some models.
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22

(5–Door)
Rear
(4–Door)
(5–Door)
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
(4–Door)
1. Lug wrench
2. Tiedown eyelet

(5–Door)
1. Lug wrench
2. Tiedown eyelet

If Trouble Arises
Emergency Towing
7-25
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22

Rear
(4–Door)
1. Lug wrench
2. Tiedown eyelet

(5–Door)
1. Lug wrench
2. 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.
If Trouble Arises
Emergency Towing
7-26
Mazda3_8KH1-EA-21K_Edition1_new 2021-7-27 16:02:22

▼Brake Override Warning Indication
This message is displayed when the
accelerator pedal and brake pedal are
depressed at the same time while
driving.
Release the accelerator pedal and
depress the brake pedal.
▼Check Engine Indication/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:
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.
The fuel tank level being very low or
approaching empty.
If the check engine light remains on, or
it flashes continuously , do not drive at
high speeds and consult an Authorized
Mazda Dealer as soon as possible.
WARNING
If the check engine light turns on, do
not disconnect the battery cables.
If the battery cables are disconnected
and then reconnected, the engine
could be damaged and catch on fire.
▼i-stop Warning Indication/
Warning Light (Amber)*
The light turns
on/flashes
continuously if the system has a
problem.
Have the vehicle inspected by an
Authorized Mazda Dealer.
▼ Automatic Transmission Warning
Indication/Warning Light*
The indication/light illuminates when
the transmission has a problem.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-31
Mazda3_8KH1-EA-21K_Edition1_new
2021-7-27 16:02:22

▼KEY Warning Indication/Warning
Light (Red)
“Keyless Entry System Malfunction.
Have the Vehicle Inspected” is
displayed
This message is displayed if the
advanced keyless entry & push button
start system has a problem.
Contact an Authorized Mazda Dealer.
CAUTION
If the message is indicated, or the push
button start indicator light (amber)
flashes, the engine may not start. If the
engine cannot be started, try starting it
using the emergency operation for
starting the engine, and have the
vehicle inspected at an Authorized
Mazda Dealer as soon as possible.
Refer to Emergency Operation for
Starting the Engine on page 4-9.
“Key Not Detected” is displayed
If the presence of the key cannot be
detected (dead battery, battery
malfunction, no key), it is displayed
when the driver attempts to start the
engine (push button start operation,
brake pedal depression).
Displayed when it is determined that
a key that was in the vehicle has
been removed from the vehicle. (Key
taken out warning. Other than
IG-OFF).
▼ Security Indicator Light
If the security indicator light flashes
continuously while you are driving, do
not shut off the engine. Go to an
Authorized Mazda Dealer and have it
checked. If the engine is shut off while
the indicator light is flashing, you will
not be able to restart it.
Make sure the key is within the
operational range for signal
transmission. Switch the ignition off,
and then restart the engine. If the
engine does not start after 3 or more
tries, contact an Authorized Mazda
Dealer.
NOTE
Because the electronic codes are reset
when the immobilizer system is
repaired, the keys are needed. Make
sure to bring all the keys to an
Authorized Mazda Dealer so that they
can be programmed.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
7-34
Mazda3_8KH1-EA-21K_Edition1_new
2021-7-27 16:02:22

Action to be taken
Fasten the seat belts.
▼Seat Belt Warning Light (Rear seat)
(Red)
If the rear seat belts are not fastened
while the ignition is switched ON , the
driver and the passenger are alerted by
the warning light.
The warning light operates even if there
is no passenger on the rear seat.
NOTE
If a rear seat belt is not fastened by a
certain period of time after the engine
has been started, the warning light
turns off.
Action to be taken
Fasten the seat belts.
▼
Low Washer Fluid Level Warning
Indication/Warning Light*
This warning light indicates that little
washer fluid remains.
Action to be taken
Add washer fluid (page 6-21).
▼Door-Ajar/Trunk lid-Ajar/
Liftgate-Ajar Warning Indication/
Warning Light
The light turns on if any door/trunk
lid/liftgate is not closed securely.
Action to be taken
Close the door/trunk lid/liftgate
securely.
▼Tire Pressure Monitoring System
(TPMS) Warning Indication/
Warning Light (Turns on)
If a tire pressure decreases below the
specified air pressure, the TPMS
warning light turns on.
At the same time, a message and the
tire pressure of each tire are displayed
on the multi-information display
alternately. In addition, the tire (s) with
low air pressure is displayed in yellow.
If Trouble Arises
Warning/Indicator Lights and Warning Sounds
*Some models.7-37
Mazda3_8KH1-EA-21K_Edition1_new
2021-7-27 16:02:22