2013 MITSUBISHI LANCER EVOLUTION brake

Features and controls
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3
ACD (Active center differential system)
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The ACD is a system that improves acceleration performance
and straight-ahead stability by regulating the differential limit-
ing action and power drive distribution of the center differen-
tial.NOTE
If the parking brake lever is pulled up while the vehicle is
moving, the center differential is designed to switch to a
free state condition which will allow the rear wheel to
lock easier.
AYC (Active yaw control system)
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The AYC is a system, with a left-right differential limiting
function and yaw control function, that enhances cornering
performance and stability during cornering by controlling the
left-right drive power difference of the rear wheels, the braking
force of all four wheels, and the vehicle yaw moment. Left-right differential limiting functionThe left-right differential limiting function is a function that
enhances driving performance and vehicle stability by prevent-
ing idle spinning of a wheel when driving on slippery road sur-
faces or when the road surfaces of the left and right wheels are
different.Yaw control functionThe yaw control function is a function that enhances vehicle
cornering performance by controlling the drive power differ-
ence of the left and right wheels and the braking force when the
vehicle does not turn in response to steering input, such as
when the steering wheel is turned quickly or when driving on
slippery road surfaces.
CAUTION
!
Control of the braking force does not enhance the
stopping performance of the vehicle, therefore, pay
careful attention to the safety of your surroundings
when driving.
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3-126 Features and controls
3
NOTE
If the ambient temperature drops and the viscosity of the
AWC control fluid increases, the warning may be dis-
played.
At this time, S-AWC control is temporarily suspended,
but this will not affect normal driving.
After the vehicle is driven for a while, if the engine is
restarted after the AWC control fluid warms up or the
ambient temperature increases, the S-AWC control will
start operating again if the warning display goes out.
Anti-lock braking system
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The anti-lock braking system helps prevent the wheels from
locking up when braking. This helps maintain vehicle drivabil-
ity and steering wheel handling.Driving hints
Always keep a safe distance from the vehicle in front of
you. Even if your vehicle is equipped with the anti-lock
braking system, leave a greater braking distance when:
• Driving on gravel or snow-covered roads.
• Driving on uneven road surfaces.

Operation of anti-lock braking system is not restricted to
situations where brakes are applied suddenly. This system
may also prevent the wheels from locking when you drive
over manholes, steel roadwork plates, road markings, or
any uneven road surface.

When the anti-lock braking system is in use, you may feel
the brake pedal pulsation and the vibrations of the vehicle
body and steering wheel. It may also feel as if the pedal
resists being pressed.
In this situation, simply hold the brake pedal down
firmly. Do not pump the brake, which will result in
reduced braking performance.
CAUTION
!
The system may be malfunctioning.
Park your vehicle in a safe place and stop the engine.
Restart the engine and check whether the warn-
ing display and “SERVICE REQUIRED” go out.
If the warning display and “SERVICE
REQUIRED” go out, there is no abnormal condi-
tion. If the warning display and “SERVICE
REQUIRED” do not go out or appear frequently, it
is not necessary to stop the vehicle immediately, but
we recommend that you have your vehicle inspected.
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Features and controls
3-127
3

An operation noise is emitted from the engine compart-
ment or feel a shock from the brake pedal when start driv-
ing immediately after starting the engine. These are
normal sound or operation that the anti-lock braking sys-
tem makes when performing a self-check. It does not indi-
cate a malfunction.

The anti-lock braking system can be used after the vehicle
has reached a speed over approximately 6 mph (10 km/h).
It stops working when the vehicle slows below approxi-
mately 3 mph (5 km/h).
Anti-lock braking system warning light / display
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Warning light
Warning display
If there is a malfunction in the system, the anti-lock braking
system warning light will come on and the warning display
will appear on the information screen in the multi-information
display.
Under normal conditions, the anti-lock braking system warning
light only comes on when the ignition switch is turned to the
“ON” position and goes off a few seconds later.
CAUTION
!
The anti-lock braking system cannot prevent acci-
dents. It is your responsibility to take safety precau-
tions and to drive carefully.
To prevent failure of the anti-lock braking system,
be sure all 4 wheels and tires are the same size and
the same type.
Do not install any aftermarket limited-slip differen-
tial (LSD) on your vehicle. The anti-lock braking
system may stop functioning properly.
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3-128 Features and controls
3
If the warning light / display comes on while driv-
ing
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If only the anti-lock braking system warning light / dis-
play comes onAvoid hard braking and high-speed driving. Stop the vehicle in
a safe place.
Test the system by restarting the engine and driving at a speed
of about 12 mph (20 km/h) or higher.
If the warning light / display then remain off during driving,
there is no abnormal condition.
However, if the warning light / display do not disappear, or if
they come on again when the vehicle is driven, have the vehi-
cle checked by an authorized Mitsubishi Motors dealer or
repair facility of your choice as soon as possible.
CAUTION
!
Any of the following indicates that the anti-lock
braking system is not functioning and only the stan-
dard brake system is working. (The standard brake
system is functioning normally.) If this happens,
take your vehicle to an authorized Mitsubishi
Motors dealer or a repair facility of your choice.
• When the ignition switch is in the “ON” position,
the warning light does not come on or it remains
on and does not go off.
• The warning light comes on while driving.
• The warning display appears while driving.
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Features and controls
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3
If the anti-lock braking system warning light / display
and brake warning light / display come on at the same
timeWarning light


The anti-lock braking system and brake force distribution func-
tion may not work, so hard braking could make the vehicle
unstable.
Avoid hard braking and high-speed driving. Stop the vehicle in
a safe place and contact an authorized Mitsubishi Motors
dealer or repair facility of your choice.NOTE
The anti-lock braking system warning light and brake
warning light illuminate at the same time and the warning
displays appear alternately on the information screen in
the multi-information display.
After driving on icy roads
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After driving on snow or icy roads, remove any snow and ice
which may have been left around the wheels. On vehicles that
have an anti-lock braking system, be careful not to damage the
wheel speed sensors (A) or the cables located at each wheel.Front
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Features and controls
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3
NOTE
An operation noise may be emitted from the engine com-
partment in the following situations. The sound is associ-
ated with checking the operations of the ASC. At this
time, you may feel a shock from the brake pedal if you
depress it. These do not indicate a malfunction.
• When the ignition switch is set to the “ON” position.
• When the vehicle is driven for a while after the engine is
turned on.

When the ASC is activated, you may feel a vibration in
the vehicle body or hear a whining sound from the engine
compartment.
This indicates that the system is operating normally. It
does not indicate a malfunction.

When the anti-lock braking system warning light is illu-
minated, the ASC is not active.
Traction control function
N00559200021
On slippery surfaces, the traction control function prevents the
drive wheels from spinning excessive, thus helping the vehicle
to start moving from a stopped condition. It also provides suffi-
cient driving force and steering performance as the vehicle
turns while pressing the acceleration pedal.Skid control function
N00546800010
The skid control function is designed to help the driver main-
tain control of the vehicle on slippery roads or during rapid
steering maneuvers. It works by controlling the engine output
and the brake on each wheel.NOTE
The skid control function operates at speeds of about
9 mph (15 km/h) or higher.
CAUTION
!
When driving a vehicle on a snowy or icy road, be
sure to install snow tires and drive the vehicle at
moderate speeds.
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3-134 Features and controls
3Limited-slip differential
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A limited-slip differential is applied for front wheel differen-
tial. The features of this limited-slip differential are described
below:
Just as with a conventional differential, the wheel on one side
is allowed to turn at a different speed from the wheel on the
other side when the vehicle is cornering. The difference
between the limited-slip differential and a conventional differ-
ential is that if the wheel on one side of the vehicle loses trac-
tion, a greater amount of torque is applied to the wheel on the
other side to improve traction.NOTE
Even if there is a difference in the amount of traction the
wheels can get, if both of them are spinning, the limited-
slip differential will not be effective.
Service brake
N00517500291
Brake pedalOveruse of the brake can cause poor brake response and pre-
mature wear of the brake pads.
When driving down a long or steep hill, use engine braking by
downshifting.
CAUTION
!
Never start the engine while one of the front or rear
wheels is jacked up and the other in contact with the
ground; doing so may cause the vehicle to jump for-
ward.
Continuously attempting to extract the vehicle from
snow, mud, etc. while using high engine rpm may
damage the limited-slip differential.
Using a compact spare wheel will adversely affect
the limited-slip differential; replace the compact
spare wheel with a standard size wheel as soon as
possible.
WA R N I N G
!
Do not leave any objects near the brake pedal or let
a floor mat slide under it; doing so could prevent the
full pedal stroke that would be necessary in an emer-
gency. Make sure that the pedal can be operated
freely at all times. Make sure the floor mat is
securely held in place.
CAUTION
!
It is important not to drive the vehicle with your foot
resting on the brake pedal when braking is not
required. This practice can result in very high brake
temperatures, premature pad wear, and possible
damage to the brakes.
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Features and controls
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3
Power brakes
N00517600380
Your vehicle is equipped with power brakes for more braking
force with minimal brake pedal effort.
Your brakes are designed to operate at full capacity, even if the
power assist is lost.
If the power assist is lost, the effort needed to press the brake
pedal is greater.
If you lose the power assist for some reason, the brakes will
still work.
If the power brake unit or either of the two brake hydraulic sys-
tems stops working properly, the rest of the brake system will
still work, but the vehicle will not slow down as quickly.
You will know this has happened if you find you need to
depress the brake pedal down further, or harder when slowing
down or stopping, or if the brake warning light and the warning
display in the multi-information display come on.
Brake pad wear alarm
N00532500117
The disc brakes have an alarm that makes a metallic squeal
when the brake pads have worn down enough to need service.
If you hear this sound continuously, have the brake pads
inspected at an authorized Mitsubishi Motors dealer or a repair
facility of your choice.NOTE
When the brakes are applied, a faint noise may be heard,
but this is a characteristic of high-performance brakes; it
does not indicate a problem.
WA R N I N G
!
Never coast downhill with the engine OFF. Keep the
engine running whenever your vehicle is in motion.
If you turn off the engine while driving, the power
brake booster will stop working and your brakes
will not work as well.
If the power assist is lost or if either brake hydraulic
system stops working properly, take your vehicle to
an authorized Mitsubishi Motors dealer or a repair
facility of your choice immediately.
WA R N I N G
!
Driving with worn brake pads will make it harder to
stop, and can cause an accident.
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