ignition MAZDA MODEL 3 HATCHBACK 2020 (in English) Repair Manual

If there is a problem with the brake
system (foot brake) while driving the
vehicle, continually pulling up the EPB
switch will apply the brakes and
decelerate or stop the vehicle. The
parking brake on-reminder sound is
activated while the brake is applied. In
addition, when releasing the switch, the
brake is released and the sound stops.
If the parking brake is applied with the
ignition switched OFF or in ACC, the
EPB indicator light in the instrument
cluster and the indicator light in the
switch may turn on for 15 seconds.
When using an automatic car wash
which moves the vehicle with the front
tires mounted, it is necessary to cancel
the parking brake auto operation before
the vehicle enters the automatic car
wash. For details, refer to Canceling the
parking brake automatic operation.
Manual operation
Applying the parki ng 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 a nd 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 sw itch 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 Disp lay on page 7-38.
Auto operation
Applying the parking brake
automatically
When the ignition is switched from ON to
ACC or OFF, the par king 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.
When Driving
Brake
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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
If the accelerator pedal is depressed with
the parking brake ap plied 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 i n a position other
than neutral.
The clutch pedal is depressed halfway.
(Automatic trans mission vehicle)
The selector lever is in the D, M, or R
position.
NOTE
If something such as the driver's foot
contacts the accelerator pedal with the
engine running and the parking brake
applied, the parking brake might be
released automatically. If you do not
intend to start driving the vehicle
immediately, shift the shift lever to the
neutral position for a manual
transmission, or shift 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. Turn off the AUTOHOLD.
3. Press the EPB switch continuously for 2 seconds or longer (until a sound is
activated).
4. Release the EPB switch and switch the ignition OFF within 5 seconds after the
sound was activated.
After the auto opera tion is canceled, a
sound is activated one time, and the
EPB switch indicato r light switches
from illumination t o flashing, and then
turns off afte r 3 seconds.
Auto operation cancel method 2
1. Switch the ignition ON.
2. Turn off the AUTOHOLD.
3. Switch the ignition OFF with the EPB switch pressed.
When the auto operation is canceled, a
sound is activated one time, and the
EPB switch indicator light from
normal flashing to faster flashing, and
then turns off after 3 seconds.
NOTE
When canceling the parking brake auto
operation and parking the vehicle, shift
the shift lever to the 1st gear or the R
position for a manual transmission, or
shift the selector l ever to the P position
for an automatic transmission, and then
use wheel blocks.
When Driving
Brake
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The auto operation may not cancel if the
vehicle is parked on a steep slope.
When the ignition is switched ON, the
parking brake auto operation is restored.
▼ Warning Light
The warning light turns on when the
system has a malfunction.
Refer to Brake System Warning
Indication/Warning Li
ght on page 7-27.
▼Brake Pad Wear Indicator
When the disc brake pads become worn,
the built-in wear indicators contact the
disc plates. This causes a screeching noise
to warn that the pads should be replaced.
When you hear this noise, consult an
Authorized Mazda Dealer as soon as
possible.
WA R N I N G
Do not drive with worn disc pads:
Driving with worn disc pads is dangerous.
The brakes could fail and cause a serious
accident. As soon as you hear a screeching
noise consult an Authorized Mazda Dealer.
NOTE
In high humidity weather conditions,
brake noises, such as brake squeak or
brake squeal can be heard. It does not
indicate a malfunction.
▼Brake Assist
During emergency braking situations
when it is necessary to depress the brake
pedal with greater force, the brake assist
system provides braking assistance, thus
enhancing braking performance.

When the brake pedal is depressed hard or
depressed more quickly, the brakes apply
more firmly.
NOTE
When the brake pedal is depressed hard
or depressed more quickly, the pedal
will feel softer but
the brakes will apply
more firmly. This is a normal effect of
the brake assist operation and does not
indicate a malfunction.
When the brake pedal is depressed hard
or depressed more quickly, a motor/
pump operation noise may be heard.
This is a normal effect of the brake
assist and does not indicate a
malfunction.
The brake assist equipment does not
supersede the functionality of the
vehicle's main braking system.
▼ Brake Override System
The brake override system applies the
brake first for safety if the brake pedal and
accelerator pedal are depressed at the same
time.
When Driving
Brake
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CAUTION
If you stop operating the accelerator pedal before the vehicle starts moving, the force holding
the vehicle in the stopped position may weaken. Firmly depress the brake pedal or depress the
accelerator pedal to accelerate the vehicle.
NOTE
Under the following conditions, a problem wi th the AUTOHOLD is occurring. Have your
vehicle inspected at an Authorized Mazda Dealer as soon as possible.
A message is indicated on the multi-information display and a warning sound is
activated for about 5 seconds while the AUTOHOLD is operating or when you press the
AUTOHOLD switch.
If you switch the ignition OFF while the AUTOHOLD is operating, the parking brake is
applied automatically to assist you with parking the vehicle.
The AUTOHOLD is canceled when the selector lever/shift lever is shifted to R position
while the vehicle is on level ground, or facing up a hill or grade (as shown below).
Vehicle posture and road surface gradient AUTOHOLD operation status
Vehicle tilts forward
Operates
Level ground
Does not operate, canceled
Vehicle tilts rearward
Does not operate, canceled
: Reverse driving (selector lever/sh ift lever in the reverse (R) position)
When Driving
Brake
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▼AUTOHOLD System is Turned On
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).
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 indicator light in the instrument cluster turns on
and the brakes are held.
3. The vehicle is held in its stopped
position 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 swit ched ON (engine is
running).
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
Parking Brake (EPB) function.
(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 do any of the following actions to
resume driving the vehicle, the brakes will
be released automatically and the
AUTOHOLD active indi cator light turns
off.
(Manual transmission vehicle)
You start to release the clutch pedal with
the shift lever shifted to a position other
than the neutral position
(Automatic transmission vehicle)
The accelerator pedal is depressed.
When Driving
Brake
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If the AUTOHOLD switch is pressed
without depressing the brake pedal
while AUTOHOLD is operating
(AUTOHOLD active indicator light in
instrument cluster is turned on), the
message “Depress Brake Pedal and
Operate Switch to Release” is indicated
on the multi-information display to
notify the driver to depress the brake
pedal.
If any of the follow ing conditions occurs
while the AUTOHOLD function is
operating (AUTOHOLD active indicator
light is turned on), the parking brake is
applied automatically and the
AUTOHOLD function turns off. For the
Electric Parking Brake (EPB)
operation, refer to the Electric Parking
Brake (EPB) on page 4-64.
The ignition is switched OFF.
There is a problem with the
AUTOHOLD function.
Hill Launch Assist (HLA)
▼ Hill Launch Assist (HLA)
The HLA functions to assist in
accelerating the vehicle from a stop on
slopes. When releasing the brake pedal
and depressing the accelerator pedal to
accelerate the vehicle from a stop while on
a slope, the function prevents the vehicle
from rolling. The HLA also operates when
reversing on a slope.
The braking force is maintained
automatically after releasing the brake
pedal on a steep slope.
For manual transmission vehicles, the
HLA operates when the vehicle is tilted
rearward with the shift lever in a forward
gear, and operates when the vehicle is
tilted forward with th
e shift lever in the R
position.
For automatic transmi ssion vehicles, the
HLA operates when the vehicle is tilted
rearward with the s elector lever in a
forward gear, and operates when the
vehicle is tilted forward with the selector
lever in the R position.
WA R N I N G
Do not rely completely on HLA:
HLA is an auxiliary device for accelerating
from a stop on a slope. The system only
operates for about 2 seconds and
therefore, relying only on the system, when
accelerating from a stop is dangerous
because the vehicle may move (roll)
unexpectedly and cause an accident.
When Driving
Brake
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Traction Control System(TCS)
▼Traction Control System (TCS)
The Traction Control System (TCS)
enhances traction and safety by controlling
engine torque and braking. When the TCS
detects driving wheel slippage, it lowers
engine torque and operates the brakes to
prevent loss of traction.

This means that on a slick surface, the
engine adjusts autom
atically to provide
optimum power to th e drive wheels,
limiting wheel spin a nd loss of traction.

The warning light turns on when the
system has a malfunction.
Refer to TCS/DSC I ndication/Indicator
Light (Turns on) on page 7-32.
WA R N I N G
Do not rely on the Traction Control System
(TCS) as a substitute for safe driving:
The Traction Control System (TCS) cannot
compensate for unsafe and reckless
driving, excessive speed, tailgating
(following another vehicle too closely), and
hydroplaning (reduced tire friction and
road contact because of water on the road
surface). You can still have an accident.
Use snow tires or tire chains and drive at
reduced speeds when roads are covered
with ice and/or snow:
Driving without proper traction devices on
snow and/or ice-covered roads is
dangerous. The Traction Control System
(TCS) alone cannot provide adequate
traction and you could still have an
accident.
NOTE
To turn off the TCS, press the DSC OFF
switch (page 4-78).
▼ TCS/DSC Indicator Light
This indicator light stays on for a few
seconds when the ignition is switched ON.
If the TCS or DSC is operating, the
indicator light flashes.

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
Authorized Mazda Dealer.
NOTE
In addition to the indicator light
flashing, a slight lugging sound will
come from the engine. This indicates
that the TCS/DSC is operating properly.
On slippery surfaces, such as fresh
snow, it will be impossible to achieve
high rpm when the TCS is on.
When Driving
ABS/TCS/DSC
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Dynamic Stability Control(DSC)
▼Dynamic Stability Control (DSC)
The Dynamic Stability Control (DSC)
automatically controls braking and engine
torque in conjunction with systems such as
ABS and TCS to help control side slip
when driving on slippery surfaces, or
during sudden or evasive maneuvering,
enhancing vehicle safety.

Refer to ABS (page 4
-75) and TCS (page
4-76).

DSC operation is possible at speeds
greater than 20 km/h (12 mph).

The warning light turns on when the
system has a malfunction.
Refer to TCS/DSC Indication/Indicator
Light (Turns on) on page 7-32.
WA R N I N G
Do not rely on the Dynamic Stability
Control as a substitute for safe driving:
The Dynamic Stability Control (DSC)
cannot compensate for unsafe and reckless
driving, excessive speed, tailgating
(following another vehicle too closely), and
hydroplaning (reduced tire friction and
road contact because of water on the road
surface). You can still have an accident.
CAUTION
 The DSC may not operate correctly
unless the following are observed:
 Use tires of the correct size
specified for
your Mazda on all 4 wheels.
 Use tires of the same manufacturer,
brand and tread pattern on all 4
wheels.
 Do not mix worn tires.
 The DSC may not operate correctly when
tire chains are used or a temporary spare
tire is installed because the tire diameter
changes.
NOTE
If there is a problem with the DSC, the Hill
Launch Assist (HLA) may not operate.
Refer to Hill Launch Assist (HLA) on page
4-73.
▼ TCS/DSC Indicator Light
This indicator light stays on for a few
seconds when the ignition is switched ON.
If the TCS or DSC
is operating, the
indicator light flashes.

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
Authorized Mazda Dealer.
When Driving
ABS/TCS/DSC
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▼DSC OFF Indicator Light
This indicator light
stays on for a few
seconds when the ignition is switched ON.
It also illuminates when the DSC OFF
switch is pressed and TCS/DSC is
switched off.
Refer to DSC OFF Switch on page 4-78.

If the light remains illuminated and the
TCS/DSC is not switched off, take your
vehicle to an Authorized Mazda Dealer.
The DSC may have a malfunction.
▼ DSC OFF Switch
Press the DSC OFF switch to turn off the
TCS/DSC. The DSC OFF indicator light
in the instrument cluster and the DSC OFF
switch indicator lig
ht will illuminate.
1. DSC OFF switch indicator light

Press the switch again to turn the
TCS/DSC back on. The DSC OFF
indicator light and the DSC OFF switch
indicator light will turn off.
NOTE
When DSC is on and you attempt to free
the vehicle when it is stuck, or drive it
out of freshly fallen snow, the TCS (part
of the DSC system) will activate.
Depressing the accelerator will not
increase engine power and freeing the
vehicle may be difficult. When this
happens, turn off the TCS/DSC.
If the TCS/DSC is off when the engine is
turned off, it aut omatically activates
when the ignition is switched ON.
Leaving the TCS/DSC on will provide
the best traction.
If the DSC OFF switch is pressed and
held for 10 seconds or more, the DSC
OFF switch malfunction detection
function operates and the DSC system
activates automatically. The DSC OFF
indicator light turns off while the DSC
system is operative.
(Vehicles with Smart Brake Support
(SBS))
If the Smart Brake Support (SBS)
operates with the TCS/DSC turned off,
the TCS/DSC becomes operational
automatically.
When Driving
ABS/TCS/DSC
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Drive Selection*
▼Drive Selection
Drive selection is a system to switch the
vehicle's drive mode. When the sport
mode is selected, vehicle's response
against accelerator operation is enhanced.
This provides additional quick
acceleration which may be needed to
safely make maneuvers such as lane
changes, merging onto freeways, or
passing other vehicles.
CAUTION
Do not use the sport mode when driving on
slippery roads such as wet or snow-covered
roads. It may cause tire slipping.
NOTE
When the sport mode is selected, driving
at higher engine speeds increases and it
may increase fuel consumption. Mazda
recommends that you cancel the sport
mode on normal driving.
Drive mode cannot be switched in the
following conditions:
ABS/TCS/DSC is operating
Cruise control* is operating.
The Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) System
* is operating.
Traffic Jam Assist (TJA)* is operating.
Steering wheel is being operated
abruptly
▼Drive Selection Switch
Press the drive sele
ction switch forward
(SPORT) to select the sport mode.
Pull the drive selecti on switch back (OFF)
to cancel the sport mode.

NOTE
In the following cases, the drive
selection is canceled.
The ignition is switched OFF.
Cruise Control is set.
Mazda Radar Cruise Control with
Stop & Go function (MRCC with Stop
& Go function) is set.
Traffic Jam Assist (TJA) is set.
Depending on the driving conditions
when sport mode is selected, the vehicle
may perform shift-down or slightly
accelerate.
When Driving
Drive Selection
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