2012 Citroen DS4 ignition

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.

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.

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.

System which prevents the vehicle fromexceeding the speed programmed by the driver.
When the programmed speed limit is reached, pressing the accelerator pedal no longer has any effect.





Speed limiter

The speed limiter cannot, in any circumstances, replace the need to respect speed limits, nor can it replace the need for vigilance and responsibility on the par t of the driver.

The functions of this system are grouped
together on the steering mounted controls.
1
.Speed limiter mode selection wheel.
2. Programmed value decrease button. 3.
Programmed value increase button. 4.Speed limiter on/off button.
5.List of memorised speeds display button.
(see "Memorising speeds")



Steering mounted controls

The programmed information is grouped
together in the instrument panel screen.
6
.Speed limiter on/off indication.
7. Speed limiter mode selection indication. 8.Programmed speed value.9.
Selection of a memorised speed.
(see "Memorising speeds")


Displays in the instrument panel
Operation
The speed limiter is switched onmanually:
it requires a programmed speed of at least
20 mph (30 km/h). The speed limiter is switched off by manual foperation of the control. The programmed speed can be exceeded
temporarily by pressing the accelerator firmly
beyond the point of resistance.
To return to the programmed speed, simply release the accelerator pedal.
The programmed speed remains in the memorywhen the ignition is switched off.

Cruise control
System which automatically maintains thespeed of the vehicle at the value programmed
by the driver, without any action on the accelerator pedal.
The
functions of this system are grouped
together on the steering mounted controls.
1.Cruise control mode selection dial.
2. Speed programming/value decrease button. 3.
Speed programming/value increase button.4.Cruise control off/resume button.
5.Memorised speeds display button.
(see "Memorising speeds")


Steering mounted controls
The cruise control system cannot, in anycircumstances, replace the need to respect speed limits, nor can it replace the need for vigilance and responsibility on the par t of the driver.
You are advised to keep your feet near the pedals at all times.

The programmed information is grouped
together in the instrument panel screen.
6.Cruise control off/resume indication.
7. Cruise control mode selection indication.8.Programmed speed value.9.
Selecting a stored speed.
(see "Storing speeds")

Displays in the instrument panel
Operation
The cruise control is switched on
manually: itrequires a minimum vehicle speed of 25 mph(40 km/h) and engagement of:
- fourth gear on the manual gearbox,
- second gear on the electronic gearbox
system or automatic gearbox, in sequential
drivin
g mode,
- position A
on the electronic gearbox
system or D on an automatic gearbox.
The cruise control is switched offmanuallyfor by pressing the brake or clutch pedal or
on triggering of the ESP system for safety reasons. It is possible to exceed the programmed speed
temporarily by pressing the accelerator pedal.
To return to the pro
grammed speed, simply release the accelerator pedal.
Switching off the ignition cancels any programmed speed value.

227Driving
The function displays the following types of message: The function deselects itself automatically:
- when you engage reverse gear,
- when you switch off the ignition,
- if measuring is not requested,
- within five minutes of selection of thefunction,
- if the vehicle speed exceeds the
threshold of 45 mph
(approx. 70 km/h) for one minute.
If the lateral distance between
your vehicle and
the parking space is too large, the system may not be able to measure the space.
The s
ystem remains available after each
measurement and can therefore measure several spaces in succession.
In poor or wintry weather, ensure that the sensors are free of dir t, ice or snow.
The parking space sensor system deactivates
the front parking sensors when measuring forwards.
Parking possible
Parking difficult
Parking not advised
If there is a fault, have the system checked by a CITROËN dealer or a qualified workshop.