lights Citroen C4 PICASSO 2008.5 1.G Owner's Guide

116
VIII
S A F E T Y
BRAKING ASSISTANCE SYSTEMS
Group of supplementary systems
which help you to obtain optimum
braking in complete safety in emer-
gency situations:
- the anti-lock braking system (ABS),
- the electronic brake force distri- bution (EBFD),
- the emergency braking assist- ance (EBA).
Anti-lock braking system
and electronic brake force
distribution
Linked systems which improve the
stability and manoeuvrability of your
vehicle when braking, in particular
on poor or slippery surfaces.
Activation
The anti-lock braking system comes
into operation automatically when
there is a risk of wheel lock.
Normal operation of the ABS may
make itself felt by slight vibration of
the brake pedal. Operating fault
When braking in an emergency,
press very fi rmly without releasing
the pressure. If this warning light comes
on, accompanied by an au-
dible signal and a message
on the multi-function display,
it indicates a malfunction of the anti-
lock braking system which could re-
sult in loss of control of the vehicle
when braking.
If this warning light comes on,
together with the STOP and

ABS warning lights, accom-
panied by an audible signal
and a message on the multifunction
display, it indicates a malfunction of
the electronic brake force distribution
which could result in loss of control of
the vehicle when braking.

You MUST stop as soon as it is
safe to do so.
In both cases, contact a CITROËN
dealer.
When replacing wheels (tyres and
rims), ensure that they conform to
the manufacturer's recommenda-
tions. Emergency braking assistance
System which, in an emergency,
enables you to obtain the optimum
braking pressure more quickly, thus
reducing the stopping distance.
Activation
It is triggered by the speed at which
the brake pedal is pressed.
The effect of this is a reduction in
the resistance of the pedal and an
increase in braking effi ciency.
When braking in an emergency,
press fi rmly without releasing the
pressure.

123
VIII
S A F E T Y
Deactivation
This warning light comes
on on the instrument panel
when the ignition is on and
until the air bag is re-armed.
To guarantee the safety of your child,
it is imperative that the passenger
air bag is disarmed when you install
a "rearwards-facing" child seat on
the front passenger seat.
Otherwise, the child would risk be-
ing seriously injured or killed if the
air bag were triggered. Reactivation
When you remove the child seat,
turn switch
1 to the "ON" position to
re-arm the air bag and so guarantee
the safety of your front passenger in
the event of an impact.
Operating fault
If this warning light comes on on
the instrument panel, accompa-
nied by an audible warning and
a message on the multifunction
display, contact a CITROËN dealer to
have the system checked. The air bags
may no longer be triggered in the event
of a serious impact.
If this warning light fl ashes,
contact a CITROËN dealer.
If both air bag warning lights come
on continuously, do not install a
"rearwards-facing" child seat on
the front passenger seat.
Have it checked by a CITROËN
dealer.
Only the front passenger's air bag
can be disarmed:

 with the ignition off , insert the
key in the passenger air bag dis-
arming switch 1 ,

 turn it to the "OFF" position,

 then, remove the key keeping
the switch in this position.

136
IX
D R I V I N G
Automatic mode
Changing to automatic
mode
To change to automatic mode, move
the selector to A .
Manual mode
Changing to manual
mode
Manual mode activates when you
move the selector to M .

 Pull the lever " + " to change up a
gear.

 Pull the lever " - " to change down
a gear.
When the engine is running,
before accelerating to move
the vehicle, make sure that
the position engaged on the
selector grille or in the instrument
panel is either: R , A or M
Do not leave the vehicle with the
engine running in R , A or M . Operation in automatic mode

 Move the selector to
position A . The warning
lamp A lights up in the
instrument panel to con-
fi rm the selection.
The gearbox then functions in auto-
matic mode, without any interven-
tion on your part.
It constantly selects the gear that is
best suited to the following param-
eters:
- driving style,
- road profi le,
- optimum fuel consumption. By pulling either of the levers "
+ " or
" - ", you can exercise temporary con-
trol over the changing of gears.
The request to change gear will be
taken into account. You will still be
in automatic mode. The warning
lamp A remains lit up in the instru-
ment panel.
This function enables you to antici-
pate certain situations such as the
approach of a bend or the need to
overtake another vehicle.
Cancellation of automatic
mode
The change from position A (driv-
ing in automatic mode) to position

M (driving in manual mode) or vice
versa can be made at any time. The
warning lamp A disappears in the in-
strument panel.
Temporary manual operation
when in automatic mode

154
IX
D R I V I N G
PNEUMATIC SUSPENSION

Grand C4
Picasso
C4 Picasso
The rear pneumatic suspension en-
hances driving comfort by maintain-
ing a constant body height whatever
the vehicle load. Operation
- If there is an increase in vehi-
cle load, a sinking of the rear of
the vehicle is detected and the
pneumatic springs infl ate in or-
der to compensate for the extra
weight.
- If there is a decrease in load, a rising of the rear of the vehicle is
detected and so the pneumatic
springs defl ate to return the ve-
hicle to its nominal height.
- If the vehicle has been unused for a long period, the pneumatic
springs may infl ate if necessary
when you unlock or open a door,
so as to return the vehicle to its
nominal height.
If you do not reactivate the system
manually, the automatic correction
will be activated as soon as the ve-
hicle starts to move. During the cor-
rection, the service warning lamp
lights up and a message on the
screen reminds you not to exceed
10 km/h (6 mph).
The automatic correction does not
function if the doors or the boot are
open.
The automatic correction operates
even if your vehicle is in power
economy mode. Activation/Deactivation
The automatic correction can be de-
activated :

 press on the button B for approxi-
mately two seconds,

 release the button when you
hear a beep. Deactivation is con-
fi rmed by the lighting of the indi-
cator lamp on the button B .

In the event of the system mal-
functioning, alert messages,
always in association with the
service warning lamp, will dis-
play in the instrument panel
.
Consult a CITROËN dealer.
It is essential that you should deactivate
the system in the following instances:
- working under the vehicle,
- changing a wheel,
- transporting the vehicle on a truck or on a boot.
To reactivate the automatic correc-
tion:

 press again on the button B for
approximately two seconds,

 release the button when you hear
a beep. Activation is confi rmed
by the extinction of the indicator
lamp on the button B .

155
IX
D R I V I N G
Loading/unloading
assistance

Grand C4
Picasso
C4 Picasso
The pneumatic suspension has an
additional function associated with
it : the possibility to raise or lower
the height of the rear of the vehicle
when stationary, in order to facilitate
loading/unloading of the boot. Increasing the height of the boot
sill

 Press continuously at the top of
the control A , which is located in
the boot, on the left-hand side.
This action will be accompanied by
a sound signal. You can stop the
movement at any time by releasing
the control.
3 beeps will confi rm that the move-
ment has gone as far as it can.

Returning to the nominal height

 Press briefl y twice at the bottom
of the control A .
Decreasing the height of the boot
sill

 Press continuously at the bottom
of the control A .
This action will be accompanied by
a sound signal. You can stop the
movement at any time by releasing
the control.
3 beeps will confi rm that the move-
ment has gone as far as it can.
Returning to the nominal height

 Press briefl y twice at the top of
the control A .
Driving with the boot sill in
a low position may damage
the components located un-
der the bodyshell.

Special features
- If you start the vehicle without having returned it to the nominal
height, the automatic correction
will activate as soon as the ve-
hicle starts to move. During the
correction, the service warning
lamp lights up and a message
on the screen reminds you not to
exceed 10 km/h (6 mph).
-
The loading assistance does not
function in the following instances:
- If the button B is lit up,
- in power economy mode,
- when you fi rst use the function, press for two seconds on the
control A to initialise the system.
All subsequent actions will be
followed immediately by the de-
sired results.

178
XI
P R A C T I C A L I N F O R M A T I O N
Rear lamps
(Grand C4 Picasso)

1. Direction indicators
(PY21 W)

2. Stoplamps
(P21 W)

3. Reversing lamp
(P21 W)

4. Sidelamps (diodes)
For this type of lamp, contact a CITROËN dealer. Changing lamps

 Identify the bulb that is faulty.

 With the tailgate open, undo the
3 screws located on the side of
the lens unit and pull it rearwards
to detach.

 Disconnect the connector linking
the lens unit to the boot. Do not
disconnect the diodes.

 Remove the seal.

 Remove the bulb-holder.

 Replace the bulbs.
To remove a bulb, rotate it a quarter turn.
To fi t the bulb, rotate it a quarter turn in the other direction.

 Reposition the bulb-holder.

 Put back the seal.

 Reconnect the connector to the
lens unit.

 Stow the harness in the opening
provided in the bodywork.

 Reattach the lens unit on the bod-
ywork and do up the 3 screws. Changing number plate lights
(W 5 W)

 Insert a thin screwdriver into one
of the external holes of the lens.

 Push it outwards to unclip it.

 Remove the lens.

 Change the faulty bulb.

189
XI
P R A C T I C A L I N F O R M A T I O N
TOWING A TRAILER, A CARAVAN, ETC.
Towbar suited to the attachment of a
trailer or caravan with additional sig-
nalling and lighting.
Your vehicle is primarily designed
for transporting people and luggage,
but it may also be used for towing a
trailer. We recommend the use of original
CITROËN towbars and their har-
nesses that have been tested and
approved from the design stage
of your vehicle, and that the fi t-
ting of the towbar is entrusted to a
CITROËN dealer.
If the trailer is not fi tted by a
CITROËN dealer, it is imperative
that it is fi tted using the electrical
pre-equipment installed at the rear
of the vehicle, in accordance with
the manufacturer's instructions. Driving advice
Distribution of loads

 Distribute the load in the trailer
so that the heaviest items are as
close as possible to the axle and
the nose weight approaches the
maximum permitted without ex-
ceeding it.
Air density decreases with altitude,
thus reducing engine performance.
Above 1 000 metres, the maximum
towing load must be reduced by
10 % and so on for every 1 000 me-
tres of altitude.
Refer to the "Technical Data" section
for details of the weights and towing
loads which apply to your vehicle.
Side wind

 Take into account the increased
sensitivity to side wind.
 To lower the engine speed, re-
duce your speed.
The maximum towing load on a long
slope depends on the gradient and
the outside temperature.
In all cases, pay attention to the
coolant temperature.

 If the warning light and
the STOP warning light
come on, stop the vehicle
and switch off the engine
as soon as possible.
Braking
Towing a trailer increases the brak-
ing distance.
Tyres

 Check the tyre pressures of the
towing vehicle and of the trailer,
observing the recommended
pressures.
Lights

 Check the electrical signalling on
the trailer.
The rear parking assistance will
be deactivated automatically if an
original CITROËN towbar is used.
Driving with a trailer subjects the
towing vehicle to more signifi cant
stress and its driver must be particu-
larly careful.
Cooling
Towing a trailer on a slope increases
the temperature of the coolant.
As the fan is electrically controlled,
its cooling capacity is not dependent
on the engine speed.