Page 139 of 316
2.27
DRIVER CORRECTION DEVICES AND AIDS (2/12)
Operating faults:
–
© and x lit up on the in-
strument panel alongside mes-
sages “Check ABS”, “Check braking
system” and “Check ESC”: indicates
the ABS, ESC and emergency brake
assist are deactivated. Braking is
always enabled;
–
x, D, © and ® lit
up on the instrument panel alongside
the message “Braking system fault”:
this indicates a fault in the braking
system.
In both cases, consult an approved
dealer.
Your braking systems
are partially operational.
However, it is dangerous
to brake suddenly and
it is essential to stop immediately,
as soon as traffic conditions allow.
Contact an approved dealer.Warning light ® re-
quires you to stop immedi-
ately, for your own safety,
as soon as traffic conditions allow.
Switch off the engine and do not re-
start it. Contact an approved Dealer.
Page 140 of 316

2.28
DRIVER CORRECTION DEVICES AND AIDS (3/12)
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.
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.
Page 141 of 316

2.29
DRIVER CORRECTION DEVICES AND AIDS (4/12)
Emergency brake assist
This system supplements the ABS
and helps reduce vehicle stopping dis-
tances.
Operating principle
The system is for detecting an emer-
gency braking situation. In this case,
the braking assistance immediately de-
velops maximum power and may trig-
ger ABS regulation.
ABS braking is maintained as long as
the brake pedal is applied.
Hazard warning lights switching on
Depending on the vehicle, these may
light up in the event of sudden decel-
eration. Braking anticipation
Depending on the vehicle, when you
rapidly release the accelerator, the
system anticipates the braking ma-
noeuvre in order to reduce stopping
distances.
Special cases
When using the cruise control:
– if you use the accelerator, when you
release it, the system may be trig-
gered;
– if you do not use the accelerator, the system will not be triggered.
Operating faults
When the system detects an operat-
ing fault the message “Check brak-
ing system” appears on the instrument
panel along with the
© warning
light.
Consult an approved dealer.
Page 142 of 316

2.30
DRIVER CORRECTION DEVICES AND AIDS (5/12)
Advanced traction control
If fitted on the vehicle, grip control
makes it easier to control the vehicle on
low grip surfaces (soft ground, etc.).
Tyres
When they need to be re-
placed, only tyres of the
same make, size, type and
profile should be used.
Tyres fitted to the vehicle should
either be identical to those fitted
originally or conform to those
recommended by your approved
dealer.
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).
Activating or deactivating the
system
From the multifunction screen, select
menu “Vehicle”, “Driving assistance”,
“Traction control” then select the mode:
« Auto »
The “Auto Advanced Traction Control”
message is shown on the instrument
panel for approximately 15 seconds.
This position enables optimal usage
under normal driving conditions (dry-
ness, humidity, light snow, etc.).
« Expert »
This position enables optimal usage on
soft ground (mud, sand, dead leaves,
etc.). “Expert” mode uses traction con-
trol functions.
The system automatically switches to
“Auto” mode at speeds above 30 mph
(50 km/h), and warning light “Auto
Advanced Traction Control” is dis-
played on the instrument panel for ap-
proximately 15 seconds. Note: The system’s default mode is
“Auto” mode.
Page 143 of 316

2.31
DRIVER CORRECTION DEVICES AND AIDS (6/12)
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 1, 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 sensor 1 is
not obscured (by dirt, mud, snow, etc.).
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, warning light 2 will be displayed
on the instrument panel in red and, de-
pending on the vehicle, on the head-up
display, 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.
12
Page 144 of 316
2.32
Conditions for non-activation of the
system
The system cannot be activated:
– when the gear lever is in neutral;
– when the parking brake is activated;
– while cornering.
Activating or deactivating the
system
From the multifunction screen 3, select
menu “Vehicle”, “Driving assistance”,
“Active braking” then choose “ON” or
“OFF”.
Warning light
is displayed on the
instrument panel when the system is
deactivated.
This system is reactivated each time
the ignition is switched on.
DRIVER CORRECTION DEVICES AND AIDS (7/12)
You can access the “Driving as-
sistance” menu directly from the
button 4
\b.
Operating faults
When the system detects an operating
fault, warning light “
” appears on
the instrument panel along with warning
light
© and the message “Check
Active braking”.
Consult an approved dealer.
3
4
Page 147 of 316

2.35
Operating principle
The function stabilises the vehicle by:
– asymmetric braking of the front wheels to reduce shaking caused by
the trailer;
– braking of all four wheels and limita- tion on engine torque to reduce the
vehicle speed until the shaking has
stopped.
Warning light
flashes on the in-
strument panel to inform the driver.
DRIVER CORRECTION DEVICES AND AIDS (10/12)
Driver assistance with a
trailer
This system helps to maintain control
over the vehicle while using a trailer.
It detects shaking caused by towing a
trailer under certain driving conditions.
Operating conditions
– The function should be activated by an authorised dealer;
– the towbar must be approved by an authorised dealer;
– the wiring must be approved by an authorised dealer;
– the towbar must be connected to the vehicle.
If the towbar wiring is
plugged in but no trailer
is attached (bicycle car-
rier, luggage carrier with
lighting, etc.), the function may act
under certain rutted road conditions.
Risk of vehicle deceleration.
Page 149 of 316

2.37
Rear wheel steering
On equipped vehicles, this system,
when the vehicle is being driven, steers
the rear wheels according to driving
conditions: at low speed this system
offers manoeuvrability, at higher speeds
it optimises stability.
When driving at low speeds, the rear
wheels steer in the opposite direction to
the front wheels (figure A) to increase
the vehicle’s manoeuvrability. This is
used when driving in towns, on winding
roads, during parking manoeuvres, etc. When driving at higher speeds, the rear
wheels steer in the same direction as
the front wheels (figure B
) to optimise
the vehicle’s stability. This is useful
when changing lanes or when corner-
ing etc.
Note: The system configuration (agil-
ity, etc.) depends on the mode selected
in the “Multi-Sense” menu (please refer
to the information on “Multi-Sense” in
Section 2). Operating faults
– If the
© warning light, together
with the message “Check power
steering”, is displayed on the instru-
ment panel: please contact an au-
thorised dealer.
– If the warning light
®, together
with the message “Power steering
fault”, is displayed on the instrument
panel, this indicates a fault in the
system.
DRIVER CORRECTION DEVICES AND AIDS (12/12)
AB
® requires you to stop
as soon as traffic conditions
allow. Contact an approved
Dealer.
An impact to the underside of the
vehicle (e.g.: striking a post, raised
kerb or other street furniture) may
result in damage to the vehicle (e.g.:
deformation of an axle).
To avoid any risk of accident, have
your vehicle checked by an ap-
proved Dealer.