2.31
Electronic stability control
ESC with understeer control
and traction control
Electronic stability control ESC
This system helps you to keep control
of the vehicle in critical driving condi-
tions (avoiding an obstacle, loss of grip
on a bend, etc.).
Operating principle
A sensor in the steering wheel detects
the direction selected by the driver.
Other sensors throughout the vehicle
measure the actual direction.
The system compares driver input to
the actual trajectory of the vehicle and
corrects the trajectory if necessary by
controlling the braking of certain wheels
and/or engine power. In the event that
the system is engaged, indicator light
flashes on the instrument panel.Understeer control
This system optimises the action of the
ESC in the case of pronounced under-
steer (loss of front axle road holding).
Traction control
This system helps to limit wheelspin of
the drive wheels and to control the ve-
hicle when pulling away accelerating or
decelerating.
Operating principle
Using the wheel sensors, the system
measures and compares the speed of
the drive wheels at all times and slows
down their over-rotation. If a wheel is
starting to slip, the system brakes au-
tomatically until the drive supplied be-
comes compatible with the level of grip
under the wheel again.
The system also adjusts the engine
speed to the grip available under the
wheels, independently of the pressure
exerted on the accelerator pedal.
DRIVING CORRECTION DEVICES AND AIDS (3/10)
Operating faults
When the system detects an operat-
ing fault the message “Check ESC” and
warning light
© and appear
on the instrument panel.
In this case, the ESC and traction con-
trol system are deactivated. Consult an
authorised dealer.
2.32
DRIVING CORRECTION DEVICES AND AIDS (4/10)
The traction control system offers ad-
ditional safety. It is recommended that
you do not drive with the function di-
sabled. Correct this as soon as pos-
sible by pressing the switch 1 again.
Note: The function is reactivated auto-
matically when the ignition is switched
on or when a speed of approximately
24 mph (40 km/h) is exceeded.
Emergency brake assistThis system supplements the ABS
and helps reduce vehicle stopping dis-
tances.
Operating principle
The system detects an emergency
braking situation. In this case, the brak-
ing assistance immediately develops
maximum power and may trigger ABS
regulation. ABS braking is maintained
as long as the brake pedal is not re-
leased.
Hazard warning lights illumination
Depending on the vehicle, these may
light up in the event of sudden decel-
eration.
These functions are an ad-
ditional aid in the event of
critical driving conditions,
enabling the vehicle behav-
iour to be adapted to suit the driving
conditions.
However, the functions do not take
the place of the driver. They do
not increase the vehicle’s limits
and should not encourage you
to drive more quickly. Therefore,
they can under no circumstances
replace the vigilance or responsibil-
ity of the driver when manoeuvring
the vehicle (the driver must always
be ready for sudden incidents which
may occur when driving).
Deactivating the function
(depending on vehicle)
In some situations (driving on very wet
ground: snow, mud, etc. or driving with
snow chains fitted), the system may
reduce the engine output to limit wheel-
spin. If this is not required, it is possible
to deactivate the function by pressing
switch 1.
The message “TRACTION CONTROL
OFF” is displayed on the instrument
panel to inform you.
1
2.33
Advanced traction control
If fitted on the vehicle, grip control
makes it easier to control the vehicle on
low grip surfaces (soft ground, etc.).
DRIVING CORRECTION DEVICES AND AIDS (5/10)
For your safety, please re-
spect the speed limit.
When they need to be re-
placed, only tyres of the
same make, size, type and profile
should be used on a single axle.
They must: either have a load ca-
pacity and speed rating at least
equal to those of the original
tyres, or conform to those recom-
mended by an authorised dealer.
Failure to heed these instructions
could endanger your safety and
affect your vehicle’s roadworthi-
ness.
Risk of loss of control of the ve-
hicle.
“Road” mode
When the vehicle is started up, the
warning light
on the selector 2
comes on, along with the instrument
panel message “Automatic mode on”.
This position enables optimal usage
under normal driving conditions (dry-
ness, humidity, light snow, etc.).
“Road” mode uses traction control func-
tions. “Soft ground” mode
Turn the selector 2
: the integrated
warning light
\b comes on, along
with the instrument panel message
“Non grip road mode on”. This position
enables optimal usage on soft ground
(mud, sand, dead leaves, etc.). “Soft
ground” mode uses traction control
functions. The system automatically
switches to “Road” mode above around
25 mph (40 km/h), and the integrated
warning light
on the selector 2
comes on.
“Expert” mode
Turn the selector 2 : the integrated
warning light
comes on, ac-
companied by a message on the in-
strument panel “Expert mode on”. This
position enables optimum usage in ex-
treme conditions (very snowy or muddy
roads). The engine speed is left under
the control of the driver.
The system automatically switches to
“Road” mode above around 25 mph
(40 km/h), and the integrated warning
light
on the selector 2 comes on.
2
2.34
DRIVING CORRECTION DEVICES AND AIDS (6/10)
If the driver depresses the brake pedal
and the system still detects a risk of col-
lision, the brake force is increased.
If the driver fails to react following
an alert of an imminent collision, the
system activates the brakes.
Active emergency braking
Using the sensor 3, the system calcu-
lates the distance separating the vehi-
cle from the one in front and alerts the
driver if there is a risk of a front-end col-
lision. The driver can then brake the ve-
hicle to limit the damage arising from a
collision.
Note: make sure that the radar 3 is not
obscured (by dirt, mud, snow etc. or by
the fitting of accessories such as bull
bars).
Operation
While driving (at speeds of between 20
and 85 mph (30 and 140 km/h)), if there
is a risk of collision with the vehicle in
front, the warning light 4 will be dis-
played on the instrument panel in red,
alongside a beep.
The system only detects vehicles
driving in the same direction of traf-
fic. The system cannot detect mo-
torcycles because of the difficulty in
forecasting their trajectory.
34
2.35
Activating or deactivating the
system
For vehicles fitted with a navigation
system
On the multifunction screen 5, select
the “Vehicle” menu, “Driving assist-
ance”, and “Active braking”, and then
choose “ON” or “OFF”.
DRIVING CORRECTION DEVICES AND AIDS (7/10)
Press the switch 7 OK again to activate
or deactivate the function:
= function activated
< function deactivated
The warning light
is displayed on
the instrument panel when the system
is deactivated. This system is reacti-
vated each time the ignition is switched
on.
Conditions for non-activation of the
system
The system does not activate:
– when the gear lever is in neutral;
– when the parking brake is activated;
– while cornering;
– for 4-wheel drive vehicles, when Electronic Stability Programme
(ESC) with understeer and trac-
tion control are deactivated (please
see “Electronic Stability Programme
(ESC) with understeer and traction
control” above). Warning light
comes on.
5
8
7
For vehicle not fitted with a
navigation system
– With the vehicle at a standstill, press and hold the switch 7 OK to access
the settings menu,
– repeatedly press the control 8 up or
down until you reach the “Driving as-
sistance” menu. Press the switch 7
OK;
– repeatedly press control 8 up or down
until you reach the “Active braking”
menu, then press the switch 7 OK.
You can access menu “Driving as-
sistance” directly from button 6
.
6
2.36
DRIVING CORRECTION DEVICES AND AIDS (8/10)
Active emergency braking
This function is an additional driving aid. However, this function is not
under any circumstances intended to replace the due care and attention
of the driver, who should at all times be in control of the vehicle.
System servicing/repairs
– In the event of an impact, the sensor alignment may become changed, and \
its operation will consequently be affected. Deactivate the function, then consult
an authorised dealer.
– Any work in the area where the radar is located (repairs, replacements,\
touch- ing up of paintwork) must be carried out by a qualified professional.
– Fitting accessories which may block the radar is prohibited (bull bars \
etc.).
Only an authorised dealer is qualified to service the system.
In the event of system disturbance
Some conditions can disturb or damage the operation of the system, such \
as:
– a complex environment (metal bridge, etc.);
– poor weather conditions (snow, hail, black ice, etc.).
Risk of inadvertent braking.
Operating faults
When the system detects an operating
fault, the
warning light lights up
on the instrument panel, with the mes-
sage “Active braking disconnected”.
There are two possibilities:
– the system is temporarily disrupted (for example: radar obscured by
dirt, mud, snow etc.). In this case,
park the vehicle and switch off the
engine. Clean the detection zone of
the radar. When you next start the
engine, the warning light and the
message go out
– if this is not the case, this may arise from another cause; contact an
Approved Dealer.
2.39
Mode selector
Depending on the road conditions, turn-
ing the selector 1 enables the following
modes to be selected:
– AUTO ;
– 2WD ;
– 4WD Lock.
“AUTO" mode
To activate this mode, turn selector 1 to
the “AUTO” position.
Operating principle
“AUTO” mode automatically distributes
the engine torque between the front and
rear axles according to the road condi-
tions and the vehicle speed. This po-
sition optimises roadholding. Use this
mode on any type of road (dry, snow-
covered, slippery, etc.) or when towing
(trailer or caravan). This mode is not in-
dicated on the instrument panel.
TRANSMISSION: 4-wheel drive (4WD) (1/4)“2WD" mode
To activate this mode, turn the selec-
tor 1 to the “2WD” position. The warn-
ing light
‘ on the instrument panel
will come on.
Operating principle
The “2WD” mode uses the front wheels
only. Use this mode on dry roads with
good grip.
To deactivate this mode, turn the selec-
tor 1 to the “AUTO” position. Warning
light
‘ goes out on the instrument
panel.
Remember that driving a vehicle off-
road is very different to driving it on
the road.
To make the most of your vehicle
in an off-road situation, we recom-
mend that you are trained to drive a
4x4 (4WD) vehicle.
The safety of both you and your
passengers is your responsibility,
and depends on your skill and the
care you take when driving off-road.
1
2.40
TRANSMISSION: 4-wheel drive (4WD) (2/4)
This problem may be resolved by
changing the tyres. Always use four
identical tyres (same brand, profile,
etc.) and with similar wear.
In the event of excessive wheelspin, the
mechanical components may overheat.
If this happens:
– at first, the
’ warning light
flashes. “4WD Lock” mode is still
active – however we recommend
that you stop as soon as possible to
allow the system to cool down (until
the warning light stops flashing);
– if the wheels still spin, the system au- tomatically switches to “2WD” mode
to protect the mechanical compo-
nents.
The
‘ warning light flashes. The
mode cannot be changed while the
light is flashing.
After one minute, the system switches
to “2WD” or “AUTO” mode depending
on the position of the selector.
Note: If the vehicle speed exceeds
approximately 24.8 mph (40 km/h) in
"4WD Lock" mode, the system auto-
matically switches back to "AUTO"
mode. The warning light
’ goes
out.
Special features of the
4-wheel drive transmission
The vehicle may make more noise when
the “AUTO" or "4WD Lock" modes are
activated. This is normal. If the system
detects a difference in the dimensions
of the front and rear wheels (eg. un-
derinflation, severe wear on an axle),
the system automatically switches to
"2WD" mode.
The warning lights
‘ and ©
are displayed on the instrument panel.
Drive as soon as possible at a moder-
ate speed to an approved dealer.
“4WD Lock" mode
To activate this mode, turn selector 1 to
the “4WD Lock” position. The selector
the returns to the “AUTO” position. The
’ indicator light will light up on the
instrument panel.
Operating principle
“4WD Lock” mode distributes the
engine torque between the front and
rear axles in order to optimise the per-
formance capacity of the vehicle in off-
road situations. This mode should only
be used in extreme driving conditions
(mud, steep slopes, sand).
To deactivate this mode, turn selector 1
to the “4WD Lock” position again. The
indicator light on the instrument panel
goes out. When the engine is switched
off, the system stays in “4WD Lock”
mode for one minute.