CITROEN C4 PICASSO 2010 Owners Manual
Page 141 of 352
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DRIVING
ELECTRIC PARKING BRAKE 
  The electric parking brake operates 
as follows: 
   
 
-   automatic application/release 
   
  Application is automatic when 
the engine stops, release is au-
tomatic on use of the accelerator 
(active by default). 
   
-   manual application/release 
   
  Manual application/release of 
the parking brake is possible 
by pulling control lever  A 
 while 
pressing the brake pedal.  
 
 
Manual application 
 
With the vehicle stationary, to apply 
the parking brake whether the en-
gine is running or not,  pull 
 control 
lever  A 
. 
 
 
Manual release 
 
With the ignition on or the engine 
running, to release the parking 
brake, press on the brake pedal, or 
the accelerator,  pull then release 
 
control lever  A 
. 
   
 
-   the warning lamp  P 
 in con-
trol lever  A 
 and in the in-
strument panel going off, 
   
-   the display of a message 
"Parking brake off" in the multi-
function screen.     The application of the parking brake 
is confi rmed by: 
   
 
-  
the illumination of the warn-
ing lamp  P 
 in control lever  A 
 
and in the instrument panel, 
   
-   the display of a message 
"Parking brake on" in the multi-
function screen.  
  When the driver’s door is 
opened with the engine run-
ning, a beep is heard and a 
message displayed if the parking 
brake has not been applied. 
  Before getting out of the vehicle, 
check that the warning lamp  P 
 is 
on fi xed in the instrument panel 
(not fl ashing).    The full application of the parking 
brake is confi rmed by: 
  If you pull control lever  A 
 
without pressing the brake 
pedal, the parking brake 
will not be released and 
the "Foot on brake" warn-
ing lamp will come on in 
the instrument panel.    
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DRIVING
   
Automatic application, 
engine off 
  With the vehicle stationary, the park-
ing brake  is automatically applied 
when the engine is switched off. 
 
  The application of the parking brake 
is confi rmed by: 
   
 
-  
the illumination of warning 
lamp  P 
 in control lever  A 
 
and in the instrument panel, 
   
Automatic release 
 
The electric parking brake  releases 
automatically and progressively 
 
when you press the accelerator: 
   
 
 ) 
  Manual gearbox 
 (fi rst gear or 
reverse gear engaged): press 
down fully on the clutch pedal 
then press on the accelerator 
pedal and move off. 
   
 ) 
  Automatic gearbox 
: accelerate 
with the selector in position  D 
,  M 
 
or  R 
. 
   
 ) 
  Electronic gearbox 
: accelerate 
with the selector in position  A 
,  M 
 
or  R 
.  
  Full release of the parking brake is 
confi rmed by: 
   
 
-   the warning lamp  P 
 in con-
trol lever  A 
 and in the in-
strument panel going off, 
   
-   the display of a message "Parking 
brake off" in the multifunction 
screen.  
 
When stationary, with the engine 
running, do not press the acceler-
ator pedal unnecessarily, as you 
may release the parking brake.  
 
 
Maximum application 
 
If necessary, you can use  maximum 
application 
 of the parking brake. It 
is obtained by means of a  long pull 
 
on control lever  A 
, until you see the 
message "Parking brake on" and an 
audible signal is heard. 
   
Maximum application is essential: 
 
   
 
-   when towing a caravan or a trail-
er, if the automatic functions are 
activated but you are applying 
the parking brake manually, 
   
-   when the gradient you are parked 
on is variable in its effect (e.g. on 
a ferry, in a lorry, during towing),  
   
 
-   when towing, when loaded or 
when parking on a gradient, turn 
the front wheels towards the 
pavement and engage a gear 
when you park, 
   
-   after a maximum application, the 
release time will be longer.  
 
  Before leaving the vehicle, 
check that warning lamp  P 
 
in the instrument panel is 
on fi xed, not fl ashing. 
  Never leave a child alone inside the 
vehicle with the ignition on, as they 
could release the parking brake.      
-   the display of a message 
"Parking brake on" in the multi-
function screen.  
  The normal operating sound will con-
fi rm to you the application/release of 
the electric parking brake.   
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DRIVING
   
To immobilise the vehicle, 
engine running 
  To immobilise the vehicle when sta-
tionary with the engine running, you 
must apply the parking brake manu-
ally by  pulling 
 on control lever  A 
. 
  The application of the parking brake 
is confi rmed by: 
   
 
-   the illumination of warning 
lamp  P 
 in control  A 
 and in 
the instrument panel, 
   
-   the display of a message 
"Parking brake on" in the multi-
function screen.  
  When the driver’s door is opened, a 
beep is heard and a message dis-
played if the parking brake has not 
been applied. 
  Before leaving the vehicle, 
check that warning lamp  P 
 
in the instrument panel is 
on fi xed (not fl ashing).  
 
 
Particular situations 
 
In certain situations (e.g. starting 
the engine), the parking brake can 
automatically alter its force. This is 
normal operation. 
  To move your vehicle without start-
ing the engine (towing, etc...), but 
with the  ignition on 
, press the brake 
pedal and release the parking brake 
  by pulling 
 then  releasing 
 control 
lever  A 
. 
  The full release of the parking brake 
is confi rmed by the warning lamp  P 
 
(red) in the instrument panel going 
off and the display of a message 
"Parking brake off" in the multifunc-
tion screen. 
  If the parking brake malfunctions 
  while applied or if the battery 
 runs 
fl at, an emergency release remains 
possible.  
 
 
Activation/Deactivation of the 
automatic functions *  
 
The automatic application when 
the engine is switched off and the 
automatic release when you press 
the accelerator can be deactivated. 
Activation/deactivation is performed 
using the confi guration menu of the 
multifunction screen. To do so, se-
lect "Vehicle parameters/Comfort/
Automatic handbrake." 
  The deactivation of these 
functions is confi rmed by the 
lighting of this warning lamp 
in the instrument panel.
   
*   According to country   With the automatic functions deac-
tivated, the application and release 
of the parking brake are done manu-
ally.    
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DRIVING
   
Dynamic emergency braking  
 
In the event of a failure of the vehi-
cle’s main braking system or in an 
exceptional situation (e.g. driver tak-
en ill, under instruction, etc) a con-
tinuous pull on the control lever  A 
 
will stop the vehicle. 
  The electronic stability programme 
(ESP) provides stability during dy-
namic emergency braking. 
  If the dynamic emergency braking 
malfunctions, one of the following 
messages will be displayed in the 
multifunction screen: 
   
 
-   "Parking brake faulty". 
   
-   "Parking brake control faulty".    If a failure of the ESP sys-
tem is signalled by the il-
lumination of this warning 
lamp, then braking stability 
is not guaranteed. In this event, sta-
bility must be assured by the driver 
by repeating alternate "pull-release" 
actions on control lever  A 
. 
  The dynamic emergency 
braking must only be used in 
exceptional circumstances.   
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DRIVING
   
Emergency release   
In the event of a malfunction of the 
electric parking brake or the battery 
running fl at, an emergency mecha-
nism can release the parking brake. 
   
 
 ) 
  Immobilise the vehicle, with the 
engine running, by engaging fi rst 
gear (manual gearbox), posi-
tion  P 
 (automatic gearbox) or  M 
 
or  R 
 (6-speed electronic gearbox 
system). 
   
 ) 
  Switch off the engine, but leave 
the ignition on.  
  If the vehicle cannot be immo-
bilised, do not do anything and 
contact a CITROËN dealer or a 
qualifi ed workshop without delay. 
   
 ) 
  Fetch the vehicle blocks  E 
 and 
the release tool  F 
 (handle) from 
the toolbox. 
   
 ) 
  If on a gradient: chock the vehi-
cle by placing the blocks in front 
of or behind the front wheels, on 
the falling side of the gradient.  
  If on level ground: chock the 
vehicle by placing the blocks in 
front of and behind one of the 
front wheels.    
 ) 
 Slide the front left-hand seat 
back as far as possible. 
   
 ) 
  Lift up the fl oor plug 
  B 
  on the 
carpet in front of the seat. 
 
   
 ) 
  Pierce the tab  C 
 on the tube  D 
 
with the release tool  F 
. 
   
 ) 
  Place the end of the handle  F 
 in 
the tube  D 
. 
   
 ) 
  Turn the release tool  F clock-
wise. 
  For safety reasons 
, it is 
  essential 
 to continue turning the 
device as far as it will go. The 
parking brake is released. 
   
 ) 
  Remove the release tool  F 
 and 
store it with the blocks  E 
 in the 
toolbox.  
 
 
 
-   The operation of the parking 
brake reinitialises itself when 
the ignition is switched off then 
on again. If the reinitialisation of 
the parking brake proves impos-
sible, contact a CITROËN dealer 
or a qualifi ed workshop. 
   
-   The subsequent time required 
for application may be longer 
than during normal operation.  
   
When the release tool  F 
 is engaged, do not operate the control lever or the ignition switch. 
  Immobilisation of the vehicle is no longer assured once the manual emergency release has been used. 
  The emergency release system cannot be used to apply the parking brake mechanically. 
  Take care not to allow moisture or dust in the proximity of the plug. 
  For safety reasons, contact a CITROËN dealer or a qualifi ed workshop as soon as possible to have the plug replaced.    
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DRIVING
   
 
SITUATION 
 
   
 
CONSEQUENCES 
 
 
   
 
1 
 
   Electric parking brake fault and display of 
message " Parking brake faulty 
" and the fol-
lowing warning lamps:   If the electric parking brake fault warning lamp and the service 
warning lamp come on, position the vehicle in a safe location (on 
fl at ground, with a gear engaged). 
   
 
2 
 
    
Display of message " Parking brake faulty 
" 
and the following warning lamps:     
 
-   The automatic functions are deactivated. 
   
-   Hill start assist is not available. 
   
-   The electric parking brake is only available manually.  
   
 
3 
 
   Display of message " Parking brake faulty 
" 
and the following warning lamps:    
 
-   The manual release of the electric parking brake is not avail-
able. 
   
-   Hill start assist is not available. 
   
-   The automatic functions and manual application are still available.      
If any of these instances arises, contact a CITROËN dealer or a qualifi ed workshop as soon as possible.  
 
 
Operating faults    
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DRIVING
   
 
SITUATION 
 
   
 
CONSEQUENCES 
 
 
   
 
4 
 
   Display of message " Parking brake faulty 
" 
and the following warning lamps: 
  and/or   fl ashing    
 
-   The automatic functions are deactivated. 
   
-   Hill start assist is not available.  
  To apply the electric parking brake: 
   
 
 ) 
  Immobilise the vehicle and switch off the ignition 
   
 ) 
  Pull the control lever for at least 5 seconds or until maximum 
application. 
   
 ) 
  Switch on the ignition and check that the electric parking brake 
warning lamps are on.  
   
 
-   Application may take longer than in normal operation. 
   
-   If warning lamp  P 
 fl ashes or if the warning lamps do not come 
on when the ignition is switched on, this method does not work. 
Have it checked by a CITROËN dealer or a qualifi ed  work-
shop.  
  To release the electric parking brake: 
   
 
 ) 
  Switch on the ignition. 
   
 ) 
  Pull the control lever and hold it for approximately 3 seconds.  
   
 
5 
 
   Display of message " Parking brake control 
faulty – auto parking brake activated 
" and 
the following warning lamps: 
  and/or   fl ashing    
 
-   Only the functions for automatic application on switching off the 
engine and automatic release on acceleration are available. 
   
-   Manual application/release of the electric parking brake and dy-
namic emergency braking are unavailable.  
   
 
6 
 
   Battery fault    
 
-   Lighting of the battery warning lamp makes it essential to stop 
the vehicle as soon as traffi c allows. Stop and immobilise your 
vehicle. 
   
-   Apply the electric parking brake before switching off the engine.    
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DRIVING
HILL START ASSIST 
  System which holds your vehicle tem-
porarily (approximately 2 seconds) 
when starting on a slope, the time it 
takes to move your foot from the brake 
pedal to the accelerator pedal. 
  This function is only active when: 
   
 
-   the vehicle is completely station-
ary, with your foot on the brake 
pedal, 
   
-   in particular conditions on a 
slope, 
   
-   with the driver’s door closed.  
  The hill start assist cannot be deac-
tivated. 
   
Operation 
   
Operating fault  
 
If a malfunction of the system oc-
curs, these warning lamps come 
on. Contact a CITROËN dealer or a 
qualifi ed workshop to have the sys-
tem checked.     
On an ascending slope, with the 
vehicle stationary, the vehicle is 
held for a brief moment when you 
release the brake pedal: 
 
   
 
-   provided you are in fi rst gear or 
neutral on a manual gearbox, 
   
-   provided you are in position  A 
 
or  M 
 with the electronic gearbox 
system, 
   
-   provided you are in position  D 
 or 
  M 
 on an automatic gearbox.     
On a descending slope, with the 
vehicle stationary and reverse 
gear engaged, the vehicle is held 
momentarily when you release 
the brake pedal. 
 
 
   
Do not exit the vehicle while 
it is being held in the hill 
start assist phase. 
  If you need to exit the ve-
hicle with the engine running, man-
ually apply the parking brake and 
ensure that the warning lamp  P 
 
(red) in the instrument panel is on 
(not fl ashing).