engine MAZDA MAZDA 2023 Repair Manual

Charging the M Hybrid battery
The M Hybrid battery is charged
automatically during engine operation
and by deceleration regeneration.
Therefore, it is not necessary to charge
the battery from outside of the vehicle.
CAUTION
Drive the vehicle for about 30 minutes
once every few months because
self-discharge occurs gradually if the
vehicle is not driven for a long period
of time. If the M Hybrid battery
becomes completely discharged and
M Hybrid cannot be activated, contact
an Authorized Mazda Dealer.
▼M Hybrid Precautions
For vehicle maintenance or repairs, or
when scrapping the vehicle, consult an
Authorized Mazda Dealer.
Handling the M Hybrid battery
Technical knowledge and skill are
necessary in handling the M Hybrid
battery.
WARNING
To ensure safe and correct handling of
the M Hybrid battery, always heed the
following precautions:

Do not remove the M Hybrid battery.
 Do not resell, transfer, or modify the
M Hybrid battery.
 Do not use the battery on vehicles
other than those equipped with the
M Hybrid battery.
If the M Hybrid battery is not handled
properly, the following may occur and
cause serious injury:
 Touching an unattended or illegally
abandoned M Hybrid battery may
cause electrocution.
 If the M Hybrid battery is used on a
vehicle other than one equipped
with M Hybrid (including modified
vehicles), accidents such as
electrocution, heat generation,
smoking , combustion, and
explosions, or an electrolyte leakage
may occur.
Scrapping Your Vehicle and Disposing
of the M Hybrid battery
The M Hybrid battery must be recycled
to prevent accidents involving it. When
scrapping your vehicle, replacing the M
Hybrid battery, or disposing of the M
Hybrid battery, consult an Authorized
Mazda Dealer. Please cooperate in
ensuring that the vehicle's M Hybrid
battery is recycled.
WARNING
Dispose of the M Hybrid battery
appropriately:
If the M Hybrid battery is not recycled
appropriately, such as by leaving it
unattended or illegally abandoning it,
some other person may touch it which
could cause electrocution leading to
serious injury.
If an Accident Occurs
If the vehicle is involved in a collision,
M Hybrid may stop operating. In this
case, the charging sy stem warning light
turns on and M Hybrid cannot activate.
Park the vehicle in a safe place
immediately and contact an
Authorized Mazda Dealer.
When Driving
M Hybrid
4-55
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Lighting Control
▼Headlights
Turn the headlight switch to turn the headli
ghts and other exterior lights on or off.
When the taillights, parking lights, license plate lights, and the side-marker lights are
turned on, the lights-on indicator ligh t in the instrument cluster turns on.

NOTE
If the light switch is left on, the lights will automatically switch off approximately
30 seconds after switching the ignition off.
The time setting can be changed.
Refer to the Settings section in the Mazda Connect Owner's Manual.
To prevent discharging the battery, do not leave the lights on while the engine is
off unless safety requires them.
Without auto-light control
Switch Position OFF
Headlights OffOff
On*1
Daytime running lights On*2On*2Off
Taillights
Parking lights
License plate lights
Side-marker lights Off
On
*3On*1
*1 When the ignition is switched from ON to ACC or OFF, the headlights turn off if the auto headlight
off function has been canceled. If the auto headlight
off function is enabled, the lights turn on for the
set period using the auto headlight off function, and then they turn
off.
When Driving
Switches and Controls
4-57
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

*2 When the light switch is switched to a different position from the OFF, position while the
vehicle is stopped, the daytime running lights turn off. When starting to drive the vehicle, the daytime
running lights turn on again.
*3 When the ignition is switched from ON to ACC or OFF, the headlights remain on if the auto headlight off function has been canceled. If the auto headlight
off function is enabled, the lights turn on for the
set period using the auto headlight off function, and then they turn off.
With auto-light control
Switch Position OFF*1
AUTO
Surround-
ings are
bright
*2
Surround- ings are
dark
*3
Surround- ings are
bright
*2
Surround- ings are
dark
*3
Headlights Off Off On Off
On*4*5On*6
Daytime running lights OffOn*7OffOn*8Off Off
Taillights
Parking lights
License plate lights
Side-marker lights Off Off
On
On
*9On*9On*6
*1 When the light switch is switched to OFF while the vehicle is stopped, the lights turn off. The light
switch returns automatically to the AUTO position and the headlights change to AUTO operation
when you start driving the vehicle.
*2 The level of brightness around the vehicle is of a sufficient level.*3 The level of brightness around the vehicle is of an insufficient level.*4 The daytime running lights can be disabled usin g the personalization features (page 4-62). If the
daytime running lights are disabled, the headlights turn off directly after starting the engine. The
headlights turn on when you begin driving the vehicle.
*5 When the light switch is switched from the OFF, AUTO, or position to the position while
the vehicle is stopped, the headlights turn off. When starting to drive the vehicle, the headlights turn
on again.
*6 When the ignition is switched from ON to ACC or OFF, the headlights turn off if the auto headlight off function has been canceled. If the auto headlight off function is enabled, the lights turn on for the
set period using the auto headlight off function, and then they turn off.
When Driving
Switches and Controls
4-58
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

*7 When the light switch is switched to a different position from the AUTO position while the vehicle isstopped, the daytime running lights turn off. When starting to drive the vehicle, the daytime running
lights turn on again.
*8 If one of the following operations is done from the position while the vehicle is stopped, the
daytime running lights turn off.
Switch the light switch to the OFF position.
Switch the light switch to the AUTO position, and then to the position again.
Switch the light switch to the position.
When starting to drive the vehicle, the daytime running lights turn on again.
*9 When the ignition is switched from ON to ACC or OFF, the headlights remain on if the auto headlight off function has been canceled. If the auto headlight off function is enabled, the lights turn on for the
set period using the auto headlight off function, and then they turn off.
Auto-light control
When the headlight switch is in the AUTO position and the ignition is switched ON,
the light sensor senses the surrounding ligh tness or darkness and automatically turns
the headlights and other exterior lights on or
off.
CAUTION
Do not shade the light sensor by adhering a sticker or a label on the windshield.
Otherwise the light sensor will not operate correctly.
 The light sensor also works as a rain sensor for the auto-wiper control. Keep hands
and scrapers clear of the windshield when the wiper lever is in the AUTO position
and the ignition is switched ON as fingers could be pinched or the wipers and
wiper blades could be damaged when the wipers activate automatically. If you are
going to clean the windshield, be sure the wipers are turned off completely when
it is particularly tempting to leave the engine running. This is particularly important
when clearing ice and snow.
When Driving
Switches and Controls
4-59
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Brake System
▼Foot Brake
This vehicle has power-assisted brakes
that adjust automatically through
normal use.
Should power-assist fail, you can stop
by applying greater force than normal
to the brake pedal. But the distance
required to stop will be greater than
usual.
WARNING
Do not coast with the engine stalled
or turned off, find a safe place to stop:
Coasting with the engine stalled or
turned
off is dangerous. Braking will
require more effort, and the brake's
power-assist could be depleted if you
pump the brake. This will cause longer
stopping distances or even an
accident.
Shift to a lower gear when going
down steep hills:
Driving with your foot continuously on
the brake pedal or steadily applying
the brakes for long distances is
dangerous. This causes overheated
brakes, resulting in longer stopping
distances or even total brake failure.
This could cause loss of vehicle control
and a serious accident. Avoid
continuous application of the brakes.
Dry off brakes that have become wet
by driving slowly, releasing the
accelerator pedal and lightly applying
the brakes several times until the
brake performance returns to normal:
Driving with wet brakes is dangerous.
Increased stopping distance or the
vehicle pulling to one side when
braking could result in a serious
accident. Light braking will indicate
whether the brakes have been
affected.
CAUTION
 Do not drive with your foot held on
the clutch pedal or brake pedal, or
hold the clutch pedal depressed
halfway unnecessarily. Doing so
could result in the following:
 The clutch and brake parts will
wear out more quickly.
 The brakes can overheat and
adversely
affect brake
performance.
 Always depress the brake pedal with
the right foot. Applying the brakes
with the unaccustomed left foot
could slow your reaction time to an
emergency situation resulting in
insufficient braking operation.
 Wear shoes appropriate for driving in
order to avoid your shoe contacting
the brake pedal when depressing the
accelerator pedal.
When Driving
Brake
4-76
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Manual operation
Applying the parking brake manually
When the brake pedal is firmly
depressed and the EPB switch is pulled
up, the parking brake is applied
regardless of the ignition position.
When the parking brake is applied, the
EPB indicator light in the instrument
cluster and the EPB switch indicator
light turn on.
Releasing the parking brake manually
When the brake pedal is firmly
depressed and the EPB switch is
pressed while the ignition is switched
ON or the engine is running, the
parking brake is released. When the
parking brake is released, the EPB
indicator light in the instrument cluster
and the EPB switch indicator light turn
off.
If the EPB switch is pressed without
depressing the brake pedal, a message
is displayed on the multi-information
display to notify the driver to depress
the brake pedal.
Refer to Message Indicated on
Multi-information Display on page
7-40.
Auto operation
Applying the parking brake
automatically
When the ignition is switched from ON
to ACC or OFF, the parking brake will
be applied automatically. When the
parking brake is applied, the EPB
indicator light in the instrument cluster
and the EPB switch indicator light turn
on.
NOTE
To release the parking brake when the
ignition is switched OFF, it is necessary
to cancel the parking brake auto
operation. For details, refer to
Canceling the parking brake automatic
operation.
Releasing the parking brake
automatically
(Shift interlock release (Automatic
transmission vehicle))
CAUTION
Firmly depress the brake pedal and
perform the shift operation.
Otherwise, the vehicle may move
unexpectedly.
If the selector lever is shifted from the
P position to a position other than P
with the parking brake applied and all
of the following conditions met, the
parking brake is released automatically.
When the parking brake is released,
the EPB indicator light in the
instrument cluster and the EPB switch
indicator light turn off.
When Driving
Brake
4-78
Mazda3_8LC2-EA-22G_Edition1_new2022-5-20 11:26:10

The engine is running.The driver's door is closed.Shift interlock release is enabled.The brake pedal is being depressed.
When performing the following
operations, shift interlock release can
be enabled/disabled.
1. Switch the ignition ON.
2. Pull the EPB switch continuously for 4 seconds or longer.
3. Release the EPB switch once and then pull it again continuously for 4
seconds or longer within 3 seconds.
(Switching from disable to enable
shift interlock release)
When shift interlock release is
enabled, a sound is activated 2
times and the EPB switch indicator
changes to fast flashing , and flashes
for 3 seconds.
(Switching from enable to disable
shift interlock release)
When shift interlock release is
disabled, a sound is activated 2
times and the EPB switch indicator
light changes to slow flashing, and
flashes for 4 seconds.
NOTE
When the ignition is switched OFF,
the system setting before it was
turned off is maintained.
(Accelerator interlock release)
If the accelerator pedal is depressed
with the parking brake applied and all
of the following conditions met, the
parking brake is released automatically.
When the parking brake is released,
the EPB indicator light in the
instrument cluster and the EPB switch
indicator light turn off.
The engine is running.The driver's door is closed.The driver's seat belt is fastened.(Manual transmission vehicle)
The shift lever is in a position other
than neutral.
The clutch pedal is depressed
halfway.
(Automatic transmission vehicle)
The selector lever is in the D, M, or R
position.
CAUTION
If something such as the driver’s foot
contacts the accelerator pedal with the
engine running and the parking brake
applied, the parking brake may be
released automatically and the vehicle
may move unexpectedly. If you do not
intend to start driving the vehicle
immediately, shift the shift lever to the
neutral position for a manual
transmission, or shif t the selector lever
to the P or N position for an automatic
transmission.
Canceling the parking brake
automatic operation
The parking brake automatic operation
can be canceled by doing any of the
following after switching the ignition
from ON to OFF.
Auto operation cancel method 1
1. Switch the ignition ON.
2. Release the parking brake manually.
3. Turn off the AUTOHOLD.
4. Press the EPB switch continuously for 2 seconds or longer (until a
sound is activated).
5. Release the EPB switch and switch
the ignition OFF within 5 seconds
after the sound was activated.
After the auto operation is
canceled, a sound is activated one
time, and the EPB switch indicator
light switches from illumination to
flashing , and then turns off after 3
seconds.
When Driving
Brake
4-79
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

The brake pedal response may change, sound may occur from the brakes, or the
brake pedal could vibrate from the operation of the AUTOHOLD function.
However, this does not indicate a malfunction.
▼To Turn On AUTOHOLD System
Press the AUTOHOLD switch and
when the AUTOHOLD standby
indicator light turns on, the
AUTOHOLD function turns on.
1. AUTOHOLD standby indicator light
NOTE
When all of the following conditions
are met, the AUTOHOLD standby
indicator light turns on when the
AUTOHOLD switch is pressed and the
AUTOHOLD function turns on.
The ignition is switched ON (engine
is running or stopped by i-stop).
The driver's seat belt is fastened.The driver's door is closed.There is no problem with the
AUTOHOLD function.
To operate AUTOHOLD and hold the
brakes
1. Depress the brake pedal and bring the vehicle to a complete stop.
2. The AUTOHOLD active indicatorlight in the instrument cluster turns
on and the brakes are held.
When Driving
Brake
4-84
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

3. The vehicle is held in its stoppedposition even with the brake pedal
released.
NOTE
When all of the following conditions
are met, the AUTOHOLD operates and
the brakes are held.
The ignition is switched ON (engine
is running or stopped by i-stop).
The vehicle is stopped.The brake pedal is being depressed.The AUTOHOLD active indicator
light turns on.
The accelerator pedal is not
depressed.
The driver's seat belt is fastened.The driver's door is closed.There is no problem with the
AUTOHOLD function.
The parking brake is released.There is no problem with the Electric
Pa r k i n g B ra ke ( E P B ) f u n c t i o n .
(Automatic transmission vehicle)
The selector lever is in a position
other than R position or the vehicle
tilts forward with the selector lever in
the R position.
To release AUTOHOLD and start
driving the vehicle
If you try to resume driving the vehicle,
the brakes will be released
automatically and the AUTOHOLD
active indicator light turns off.
NOTE
If the Electric Parking Brake (EPB)
switch is pulled while the
AUTOHOLD is operating, the
parking brake is applied and the
AUTOHOLD is released. In addition,
if the parking brake is released under
this condition, the AUTOHOLD
operates to hold the brakes.
Under the following conditions, the
parking brake is automatically
applied and the AUTOHOLD is
released. The AUTOHOLD is
re-enabled when the conditions
before the AUTOHOLD is released
are restored.
The driver’s seat belt is unfastened.The driver’s door is opened.When about 10 minutes or longer
have passed since the AUTOHOLD
operation started, the parking brake
is automatically applied. Because the
AUTOHOLD is restored when
releasing the parking brake, the hold
on the brakes by AUTOHOLD
function resumes.
(Manual transmission vehicle)
When starting to drive the vehicle
forward or in reverse on a down
slope, depress the clutch pedal and
shift the shift lever to the appropriate
position for driving in the desired
direction, and then depress the
accelerator pedal to release the
AUTOHOLD.
The AUTOHOLD can be canceled
forcibly by fully depressing the
accelerator pedal for 1 second or
longer while the AUTOHOLD is
operating. Forcibly cancel the
AUTOHOLD only when the
AUTOHOLD cannot be canceled due
to a system malfunction or it is
necessary to cancel the AUTOHOLD
in an emergency.
When Driving
Brake
4-85
Mazda3_8LC2-EA-22G_Edition1_new 2022-5-20 11:26:10

Antilock Brake System(ABS)
▼Antilock Brake System (ABS)
The ABS control unit continuously
monitors the speed of each wheel. If
one wheel is about to lock up, the ABS
responds by automatically releasing
and reapplying that wheel's brake.
The driver will feel a slight vibration in
the brake pedal and may hear a
chattering noise from the brake system.
This is normal ABS system operation.
Continue to depress the brake pedal
without pumping the brakes.
The warning light turns on when the
system has a malfunction.
Refer to ABS Warning Indication/
Warning Light on page 7-30.
WARNING
Do not rely on ABS as a substitute for
safe driving:
The ABS cannot compensate for unsafe
and reckless driving, excessive speed,
tailgating (following another vehicle
too closely), driving on ice and snow,
and hydroplaning (reduced tire friction
and road contact because of water on
the road surface). You can still have an
accident.
NOTE
Braking distances may be longer on
loose surfaces (snow or gravel, for
example) which usually have a hard
foundation. A vehicle with a normal
braking system may require less
distance to stop under these
conditions because the tires will
build up a wedge of surface layer
when the wheels skid.
The sound of the ABS operating may
be heard when starting the engine or
immediately after starting the
vehicle, however, it does not indicate
a malfunction.
When Driving
ABS/TCS/DSC
4-88
Mazda3_8LC2-EA-22G_Edition1_new
2022-5-20 11:26:10