2012 Citroen DS4 warning

Stop & Start The Stop & Start system puts the engine temporarily into standby - STOP mode - during stops in the traffic (red lights, traffic jams, or other...). The engine restar ts automatically - START mode - as soon as you want to move off. The restar t takes place instantly, quickly and silently.
Per
fect for urban use, the Stop & Star t system reduces fuel consumption and exhaust emissions as well as the noise level when stationary.
Operation
Going into engine STOP mode
With the electronic gearbox system, for your comfor t during parking maoeuvres, STOP mode is not available for a few seconds after coming out of reverse gear.STOP mode does not affect the functionality of the vehicle, such asbraking, power steering, for example.
Never refuel with the engine in STOPmode; you must switch off the ignition with the key. Th
e "ECO"warning lamp comes on
in the instrument panel and the engine goes into standby automatically:
-with a manual gearbox , at speeds below
12 mph (20 km/h), when you put the gear lever into neutral and release the clutchpedal,
- with the 6-speed electronic gearbox
system, at a speed below 5 mph (8 km/h),
when you press the brake pedal or put thegear lever into position N.
If your vehicle is fitted with the system, a time counter calculates
the sum o
f the periods in STOP
mode during a journey. It resets
itself to zero every time the ignition
is switched on with the key.
STOP mode is not invoked when:


- the driver's door is open,

- the driver's seat belt is not
fastened,

- the vehicle has not exceeded 6 mph (10 km/h)since the last engine star t using the key,

- the electric parking brake is applied or
bein
g applied,

- the engine is needed to maintain acomfortable temperature in the passenger compartment,

- demisting is active,

- some special conditions (battery charge, engine temperature, braking assistance,ambient temperature...) where the engine isneeded to assure control of a system.


Special cases: STOP modeunavailable

In this case, the "ECO"warning lamp
flashes for a few seconds, then goes off.
This operation is per fectly normal.

215
Driving

Going into engine START mode
The "ECO"warning lamp goes off and the engine star ts automatically:
-with a manual gearbox
, when you fullydepress the clutch pedal,-with the 6-speed electronic gearbox
system:●
gear lever in position Aor M
, when yourelease the brake pedal,
●
or gear lever in position Nand the brake pedal released, when you move the gear lever to position A
or M,●
or when you engage reverse gear.


Special cases: START invoked automatically

If the system has been deactivatedin STOP mode, the engine restar ts immediately.

With a manual gearbox in STOP mode,if a gear is engaged without fullydepressing the clutch pedal, a warninglamp comes on or an aler t message is displayed asking you to depress the clutch pedal to restar t the engine.

At any time, press the "ECO OFF"
switch todeactivate the system.
This is confirmed by the switch warning lamp coming on accompanied by the display of amessage.


Deactivation
In this case the "ECO"
warning lampflashes for few seconds, then goes off.
This operation is per fectly normal.
For safety reasons or to ensure smooth
operation, START mode is invoked
automatically when:
- you open the driver's door,
- you unfasten the driver's seat belt,
- the speed of the vehicle exceeds 15 mph (25 km/h) with a manual gearbox or 7 mph (11 k m/h) with the 6 -speed electronic
gearbox system,
- the electric parkin
g brake is being applied,
- some special conditions (battery charge,engine temperature, braking assistance,
ambient temperature...
) where the engine is
needed to assure control of a system.

The system is reactivated automaticallyat every new star t using the key.
Reactivation

This system requires a specific battery with aspecial specification and technology (reference numbers available from a CITROËN dealer or a qualified workshop).
Fitting a battery not listed by CITROËN
introduces the risk of malfunction of the system. In the event of a malfunction with the s
ystem,
the "ECO OFF"switch warning lamp flashes,
then comes on continuously.
Have it checked by a CITROËN dealer or aqualified workshop.


Operating fault
Maintenance

Before doing anything under the bonnet, deactivate the Stop & Start system to avoid any risk of injury resulting from automatic operation of STA R T mode.

The Stop & Star t system makes use of advanced technology. All work on this type of battery must be done only by a CITROËN dealer or a qualifiedworkshop. Pr
ess the "ECO OFF"switch again.
The system is active again; this is confirmed
by the switch warning lamp going off and the
display of a message.
In the event of a fault in STOP mode, thevehicle may stall. All of the instrumentpanel warning lamps come on.Depending on version, an alert message may also be displayed askingyou to put the gear lever into position Nand put your foot on the brake pedal.
It is then necessary to switch off the ignition, then restart the engine using the key.

217Driving





Lane departure warning system

System which detects the involuntary crossing
of longitudinal traffic lane markings on the ground (solid or broken line).
Sensors, fitted below the front bumper, trigger a
warning if the vehicle drifts over a lane marking (speed higher than 50 mph (80 km/h)).
This system is par ticularly useful on motor waysand main roads.
Activation
)Press this button, the indicator lamp comes on.


The lane depar ture warning systemcannot, in any circumstances, replacethe need for vigilance and responsibility on the par t of the driver.
Deactivation
You are warned by the vibration of the driver's seat cushion:
- on the right-hand side, if the marking on theground has been crossed on the right,
- on the left-hand side, if the marking on the ground has been crossed on the left.
No warning is transmitted while the direction indicator is active and for approximately 20 seconds after the direction indicator is
switched off.
A warning may be transmitted if a direction
marking (e.g. arrow) or non-standard marking(e.g. graffiti) is crossed.
Detection
Operatin
g fault


The detection may be impeded:


- if the sensors are dir ty (mud, snow...),

- if the markings on the ground are worn,

- if there is little contrast between themarkings on the ground and the road surface.
)
Press this button again, the indicator lampgoes off.
The status of the system remains in the
memory when the ignition is switched off. In the event of a malfunction,
the ser vice warnin
g lamp comes
on, accompanied by an audible signal and a message in the screen.
Contact a CITROËN dealer or a qualified
workshop.

Blind spot sensors
of the presence of another vehicle in the blind spot angle of their vehicle (areas masked from
the driver's field of vision), as soon as thispresents a potential danger.

Operation


This system is designed to improve safety when driving and is in no circumstances a substitute for the use of the interior rear view mirror and door mirrors. It is the driver'sresponsibility to constantly check the traffic, to asses the distances and relative speeds of other vehicles and to predict their movements before deciding whether to change lane.
The blind spot sensor system can never replace the vigilance and responsibility of thedriver.

)On switching on the ignition, or enginerunning, press this button to activate the function; the warning lamp comes on.
Sensors fitted in the front and rear bumpers
monitor the blind spots. A warnin
g lamp appears in the door mirror on
the side in question:


- immediatel
y, when being overtaken,

- after a delay of about one second, whenover taking a vehicle slowly.

219Driving
No aler t will be given in the following situations:
- in the presence of stationary objects (parked vehicles, barriers, street lamps,road signs...),
- with vehicles moving in the opposite
direction,
- drivin
g on a sinuous road or a sharp corner,
The alert is given by a warning lamp whichcomes on in the door mirror on the side inquestion as soon as a vehicle - car, lorry,cycle - is detected and the following conditions are fulfilled:


- all the vehicles must be moving in the same
direction,

- the speed of
your vehicle is between 7 and
75 mph (12 and 140 km/h),

- the difference in speed between your
vehicle and the other vehicles must be lessthan 6 mph (10 km/h),

- the traffic must be flowing normally,

- in the case of an over taking manoeuvre,
if this is prolonged and the vehicle beingover taken remains in the blind spot,

-
you are driving on a straight or slightly curved road,

- your vehicle is not pulling a trailer, a caravan...

- when overtakin
g (or being over taken by) a
very long vehicle (lorry, coach...) which is at the same time detected at the rear in theblind spot angle and present in the driver's
for ward field of vision,

- in ver
y heavy traffic: vehicles detected in
front and behind are confused with a lorryor a stationary object,

- when overtaking quickly.

Operating fault

In the event of a fault, the warning lamp in thebutton flashes then goes off.
Have it checked by a CITROËN dealer or aqualified workshop.


The system may suffer temporary interference in certain weather conditions(rain, hail...).
In par ticular, driving on a wet surface or moving from a dry area to a wet area can cause false alerts (for example, the presence of a fog of water droplets in the blind spot angle is interpreted as avehicle).
In bad or wintry weather, ensure thatthe sensors are not covered by mud, ice or snow. Take care not to cover the warning zone in the door mirrors or the detection zones on the front and rear bumpers with adhesive labels or other objects; they may hamper the correct operation of the system.

)To deactivate the system, press this button again; the warning lamp goes off.
The state of the system remains in memory on switching off the ignition.
The system is automatically deactivated when towing with a towbar approved by CITROËN.

Parking space sensors
System which measures the parking spaceavailable between two vehicles or obstacles.
It measures the size of the space and gives you
information on:
- the possibility of fitting into a free space,
depending on the dimensions of your
vehicle and the distances needed for manoeuvring,
- the level of difficulty of the manoeuvre to
be performed.
The s
ystem does not measure spaces which
are clearly much smaller or larger than the sizeof the vehicle.

Displays in the instrument panel
You have identified a parking space: )Press button Ato select the function. )Operate the direction indicator on theside where the space is to be measured; a message is displayed to confirm thatmeasurement is in progress.)During measurement, go for ward the
length of the space, at a speed less than
12 mph (approx. 20 km/h), to prepare for your manoeuvre. )Once the measurement has beencompleted, the system informs you of
the level of difficulty of the manoeuvre
by a message in the multifunction screen accompanied by an audible signal.


Operation
The parking space sensor function
warning lamp can have two differentstates:


-
on fixed:the function is selected by a
press on control A .
-
off:
the function is not selected,