2011 MITSUBISHI LANCER EVOLUTION traction control

3-116 Features and controls
3All-wheel drive system
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All-wheel drive vehicles are propelled by engine power distrib-
uted constantly and appropriately to all four wheels.
Not only does this ensure enhanced handling on dry, paved
roads but also permits better traction when driving on slippery,
wet or snow-covered roads and when moving out of mud.
These vehicles, however, are not designed for off-road use,
and are unsuitable for driving on bumpy ground that may
cause excessive strain. All-wheel drive vehicles should be
driven only under the same conditions as are suitable for ordi-
nary front-wheel drive vehicles.
Cautions on handling of all-wheel drive
vehicles
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Tires and wheelsSince driving torque can be applied to all four wheels, the per-
formance of the vehicle when operating in all-wheel drive is
greatly affected by the condition of the tires.
Pay close attention to the tires.

Install specified tires on all wheels. Refer to “Tires and
wheels” on page 9-8.

Be sure to fit all four tires and wheels of the same size and
type.
When replacement of any of the tires or wheels is neces-
sary, replace all of them.

All tires should be rotated whenever the wear difference
between the front and rear tires is recognizable.
Good vehicle performance cannot be expected if there is a dif-
ference in wear between tires. Refer to “Tire rotation” on page
7-26.

Check the tire inflation pressure regularly.
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3-118 Features and controls
3
Jacking up all-wheel drive vehicles
S-AWC (Super-All Wheel Control)
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S-AWC is an integrated vehicle dynamics control system that
helps enhance driving performance, cornering performance,
and vehicle stability over a wide range of driving conditions
through integrated management of the ACD, the AYC, the anti-
lock braking system, and the active stability control (ASC).
Please read this section in conjunction with the following sec-
tions.
ACD (Active center differential system) → P. 3 - 1 1 9
AYC (Active yaw control system) → P. 3 - 1 1 9
Anti-lock braking system → P. 3 - 1 2 4
Active stability control (ASC) → P.3-128
WA R N I N G
!
Do not start or run the engine while the vehicle is on
the jack.
The jack could slip out of position and result in an
accident.
CAUTION
!
Do not over-rely on the S-AWC. Even the S-AWC
cannot prevent the natural laws of physics from act-
ing on the vehicle. This system, like any other sys-
tem, has limits and cannot help you to maintain
traction and control of the vehicle in all circum-
stances. Reckless driving can lead to accidents. It is
the driver’s responsibility to drive carefully. This
means taking into account the traffic, road and envi-
ronmental conditions.
Be sure to use tires that are the same specified size,
type, and brand, and have no difference in the
amount of wear for all four wheels. Otherwise, the
S-AWC may not work properly.
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Features and controls
3-123
3
Display exampleThe S-AWC operation status is displayed.
S-AWC warning display
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When there is a malfunction in the system, the warning dis-
play will appear on the information screen in the multi-infor-
mation display.
In addition, the S-AWC control mode display in section A will
go out at the same time.
AYC operation display
The amount of the yaw moment added by AYC is displayed as a
bar graph.
A, D- Clockwise yaw moment about the vehicle’s center of
gravity
B, C- Counterclockwise yaw moment about the vehicle’s center
of gravity
ACD operation display
The strength of the differential limiting action (center differen-
tial) of the ACD is displayed in section E of the meter as a bar
graph.
WA R N I N G
!
Always concentrate on your driving first. Keep your
eyes and mind on the road. Distractions while driv-
ing can lead to an accident.
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3-128 Features and controls
3Active stability control (ASC)
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The active stability control (ASC) takes overall control of the
anti-lock braking system, traction control function and skid
control function to help maintain the vehicle’s control and trac-
tion. Please read this section in conjunction with the pages on
the anti-lock braking system, traction control function and skid
control function.
Anti-lock braking system → P. 3 - 1 2 4
Traction control function → P.3-129
Skid control function → P.3-129
Rear
CAUTION
!
Do not over-rely on the ASC. Even the ASC cannot
prevent the natural laws of physics from acting on
the vehicle. This system, like any other system, has
limits and cannot help you to maintain traction and
control of the vehicle in all circumstances. Reckless
driving can lead to accidents. It is the driver’s
responsibility to drive carefully. This means taking
into account the traffic, road and environmental
conditions.
Be sure to use the same specified type and size of tire
on all four wheels. Otherwise, the ASC may not
work properly.
Do not install any aftermarket limited-slip differen-
tial (LSD) on your vehicle. The ASC may stop func-
tioning properly.
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Features and controls
3-129
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
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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
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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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3-130 Features and controls
3
ASC OFF switch
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When the ignition switch is turned to the “ON” position, the
ASC automatically turns ON. If the ASC OFF switch is
pressed to turn OFF the ASC, the display in the meter
comes on. Press the switch again to turn ON the ASC.
NOTE
When moving out of mud, sand or fresh snow, pressing
the accelerator pedal may not allow the engine speed to
increase. In such situations, temporarily turning off the
ASC with the “ASC OFF” switch will make it easier to
move out your vehicle.

By pressing the ASC OFF switch, both the skid control
function and the traction control function are turned OFF.

By pressing down the “ASC OFF” switch for 3 seconds or
longer, you can deactivate the ASC and the braking con-
trol of the AYC.
At this time, the display will appear for a few sec-
onds.
Then, the previous screen will return and the “!” mark will
come on.
Press the ASC OFF switch again to turn ON the ASC.

If the ASC OFF switch is continuously pressed after the
ASC has been turned OFF or the ASC and the braking
control of AYC have been turned off, an erroneous opera-
tion prevention function operates and the ASC is automat-
ically turned ON.
CAUTION
!
For safety reasons, press the ASC OFF switch when
the vehicle is stopped.
Be sure to turn ON the ASC for normal driving.
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3-132 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
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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
3-165
3
Momentary fuel consumption displayWhile driving, the momentary fuel consumption is shown with
a bar graph.
When the momentary fuel consumption surpasses the average
fuel consumption, the momentary fuel consumption is dis-
played with a green bar graph.
Be conscious of maintaining the momentary fuel consumption
above the average fuel consumption, it can help you drive with
the better fuel consumption.NOTE
When the momentary fuel consumption cannot be mea-
sured, a bar graph is not shown.

The display setting can be changed to the preferred units
{mpg (US), mpg (UK), L/100km or km/L}.
Refer to “Changing the function settings (With ignition
switch in the “ON” position)” on page 3-172.

It is possible to cancel the green bar graph.
Refer to “Changing the function settings (With ignition
switch in the “ON” position)” on page 3-172.S-AWC operation displayThe S-AWC operation status is displayed.
For further details, refer to “S-AWC operation display” on
page 3-122.
Function setting screenThe “Display language”, “Temperature unit”, “Fuel consump-
tion unit”, and “Average fuel consumption and speed reset
method” settings can be modified as desired.
For further details, refer to “Changing the function settings
(With ignition switch in the “ON” position)” on page 3-172.
WA R N I N G
!
Always concentrate on your driving first. Keep your
eyes and mind on the road. Distractions while driv-
ing can lead to an accident.
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