ESP CITROEN C5 2021 Workshop Manual
[x] Cancel search | Manufacturer: CITROEN, Model Year: 2021, Model line: C5, Model: CITROEN C5 2021Pages: 228, PDF Size: 6.78 MB
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108
Driving
4.Activate the speed limiter at the previously 
saved speed setting
Use the speed suggested by the Road signs 
recognition
For more information on the  Road signs 
recognition , refer to the corresponding section.
Information displayed on 
the instrument panel
 
 
5.Speed limiter mode selection indication
6. Speed limiter on (green)/pause (grey) 
indication
7. Speed setting value
8. Speed suggested by the Road signs 
recognition function (depending on version)
Switching on/Pausing
â–º Press  1-LIMIT to select the speed limiter 
mode; the function is paused (grey).
â–º
 
If the limit speed setting is suitable (most 
recent speed setting programmed in the system), 
press
  2-I I> or 4-OK to switch the speed limiter 
on (green).
â–º
 
Pressing 
 2-I I>   again temporarily pauses the 
function.
When the speed setting remains below 
the vehicle's speed for a prolonged 
period of time, an audible warning is emitted.
Adjusting the speed setting
You do not have to switch the speed limiter on in 
order to set the speed.
To change the speed setting using the vehicle’s 
current speed:
â–º
 
For steps of +/- 1 mph (1 km/h), make 
successive short presses upwards/downwards 
on 
3 to increase/decrease.
â–º
 
For steps of +/- 5 mph (5
   km/h), press and 
hold upwards/downwards on  3 to increase/
decrease.
When the function is activated, it is possible to 
modify the cruise speed setting based on the 
speed suggested by the Road signs recognition 
function, as shown on the instrument panel:
–
 
When passing the sign:
â–º Press  4-OK to save the suggested speed. 
This value is then immediately shown as the new 
speed setting on the instrument panel.
–
 
After passing the sign:
â–º
 
Press 
 4-OK. The message "OK?" is 
displayed to confirm the request to save.
â–º
 
Press 
 4-OK again to save the suggested 
speed. The new speed setting value is displayed 
on the instrument panel.
Temporarily exceeding the 
speed setting
â–º Fully depress the accelerator pedal.
The speed limiter is temporarily deactivated and 
the displayed speed setting flashes.
â–º
 
Release the accelerator pedal to return to 
below the speed setting.
When exceeding the speed is not due to the 
driver's action (e.g.
  in case of a steep slope), an 
audible signal is triggered immediately.
On a steep descent or in the event of 
sharp acceleration, the speed limiter will 
not be able to prevent the vehicle from 
exceeding the speed setting.
If necessary, apply the brakes to control your 
vehicle’s speed.
When the vehicle speed returns to the speed 
setting level, the speed limiter operates again: 
the speed setting display becomes fixed again.   
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109
Driving
6Off
â–º Press 1-LIMIT: the speed limiter information 
display disappears.
Malfunction
In the event of a malfunction, dashes are 
displayed flashing and then fixed (orange) 
instead of the speed setting.
Have it checked by a CITROËN dealer or a 
qualified workshop.
Cruise control - Specific 
recommendations
The cruise control function does not  guarantee compliance with the maximum 
authorised speed and the safety distance 
between vehicles, the driver remains 
responsible for their driving.
In the interest of public safety, only use cruise 
control if the traffic conditions enable vehicles 
to drive at a steady speed and maintain an 
adequate safety distance.
Remain vigilant while cruise control is 
activated. If you press and hold one of the 
speed setting modification buttons, your 
vehicle may change speed very abruptly.
When descending a steep hill , the cruise 
control system cannot prevent the vehicle 
from exceeding the set speed. Brake if 
necessary to control the vehicle speed.
On steep climbs or when towing, the set 
speed may not be reached or maintained.
Exceeding the programmed speed 
setting
You can temporarily exceed the speed 
setting by pressing the accelerator pedal (the 
programmed speed flashes).
To return to the speed setting, release the 
accelerator pedal (when the set speed is 
reached again, the displayed speed stops 
flashing).
Operating limits
Never use the system in the following 
situations:
–
 
In an urban area with the risk of 
pedestrians crossing the road.
–
 
In heavy traffic (except versions with the 
Stop & Go function).
–
 
On winding or steep roads.
–
 
On slippery or flooded roads.
–
 
In poor weather conditions.
–
 
In the event of restricted visibility for the 
driver
.
–
 
Driving on a speed circuit.
–
 
Driving on a rolling road.
–
 
When using a ‘space-saver
 ’ type spare 
wheel.
–
 
When using snow chains, non-slip covers 
or studded tyres.
Cruise control
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids  and 
to
 
Cruise control - particular 
recommendations.
This system automatically maintains the  vehicle’s speed at the value programmed 
by the driver (speed setting), without the use of 
the accelerator pedal.
Cruise control is switched on manually.
It requires a minimum vehicle speed of 25 mph 
(40
 
km/h).
With an automatic gearbox, mode
 
D
  or second 
gear or higher in mode
 
M
  must be engaged.
Cruise control remains active after 
changing gear on engines fitted with Stop 
& Start.
Switching off the ignition cancels any 
speed setting.   
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11 0
Driving
Steering-mounted controls 
 
 
 
1. Cruise control ON/OFF
2. Switch on/pause cruise control at the 
previously saved speed setting
3. Increase/Decrease the speed setting (if 
cruise control activated)
Activation of cruise control in progress (if 
cruise control deactivated)
4. Activation of cruise control in progress
Use the speed suggested by the Road signs 
recognition
For more information on the  Road signs 
recognition , refer to the corresponding section.
Information displayed on 
the instrument panel
 
 
5.Cruise control mode selection indication
6. Cruise control on (green)/pause (grey) 
indication
7. Speed setting value
8. Speed suggested by the Road signs 
recognition function (depending on version)
Switching on/pausing
â–º Press button  1 to select the cruise control 
mode; the function is paused (grey).
â–º
 
Press 
 3 upwards/downwards, or press  4-OK 
to activate the cruise control and save a speed 
setting as soon as the vehicle speed reaches the 
desired level (green).
â–º
 
Pressing button  2-I I>
  temporarily pauses the 
function.
â–º Pressing  2-I I> or 4-OK again will reactivate 
cruise control (green).
Cruise control operation is also 
temporarily interrupted (pause):
–
 
by pressing the brake pedal.
–
 
automatically
 , if the electronic stability 
control (ESC) system is triggered.
–
 
by shifting to neutral or engaging reverse 
gear
.
–
 
by using the electric parking brake.
Modifying the speed setting
The cruise control must be active.
To change the speed setting using the vehicle’s 
current speed:
â–º  
For steps of +/- 1 mph (1 km/h), 
make successive short presses upwards/
downwards
  on 3 to increase/decrease.
â–º
 
For steps of +/- 5 mph (5
   km/h), press and 
hold upwards/downwards on  3 to increase/
decrease.
Prolonged pressing and holding 
upwards/downwards on  3 causes a very 
rapid change in vehicle speed.
As a precaution, we recommend setting  a cruise speed fairly close to the current 
speed of your vehicle, to avoid any sudden 
acceleration or deceleration of the vehicle.   
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111
Driving
6When the function is activated, it is possible 
to change the speed setting using the speed 
suggested by the Road signs recognition 
function displayed on the instrument panel:
– 
When passing the sign:
â–º
 
Press 
 4-OK to save the suggested speed. 
This value is then immediately shown as the new 
speed setting on the instrument panel.
–
 
After passing the sign:
â–º
 
Press 
 4-OK. The message "OK?" is 
displayed to confirm the request to save.
â–º
 
Press 
 4-OK again to save the suggested 
speed. The new speed setting value is displayed 
on the instrument panel.
Off
â–º Press  1: the cruise control information display 
disappears.
Malfunction
In the event of a malfunction, dashes are 
displayed flashing and then fixed (orange) 
instead of the speed setting.
Have it checked by a CITROËN dealer or a 
qualified workshop.
Highway  Driver Assist
Only available on versions with automatic 
gearbox.
This system automatically adjusts the speed 
and corrects the trajectory of the vehicle, using 
the Adaptive Cruise Control with Stop&Go in 
conjunction with the Lane Positioning Assist.
These two functions must be activated and in 
operation.
This system is especially suitable for driving on 
motorways and main roads.
For more information on  Adaptive cruise 
control and Lane Positioning Assist, refer to 
the corresponding sections.
The system assists the driver by acting  on the steering, acceleration and braking 
within the physical limits
  and capacities of the 
vehicle. Certain road infrastructure elements 
or vehicles in the surroundings may not be 
properly seen or may be poorly interpreted by 
the camera and radar, resulting in an 
unexpected change in direction, a lack of 
steering correction and/or inappropriate 
management of acceleration or braking.
Selecting/Deselecting the 
system
 
 
 
ASSIST
 
â–º Press this button successively until the 
Highway Driver  Assist mode is displayed on the 
instrument panel.
â–º
 
After a few seconds, the Highway Driver 
Assist mode is selected. 
The Driving aids mini-
view is displayed on the instrument panel.
 
 
The colour of the symbols, representing the 
steering wheel and the side lines, depends on 
the operating state of the system:
(grey)
One or more operating conditions is not 
met; the system is paused.
(green)
All operating conditions are met; the 
system is active.
(orange)
System malfunction.
â–º
 
Press this button successively again until the 
OFF mode is displayed on the instrument panel. 
â–º
 
After a few seconds, the Highway Driver 
Assist mode is deselected. 
The Driving aids 
mini-view disappears.
Highway Driver Assist 2.0
This system automatically regulates the speed  and corrects the trajectory of the vehicle by 
combining the following functions:   
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11 2
Driving
– Highway Driver Assist with Adaptive Cruise 
Control with Stop&Go and Lane positioning 
assist.
–
 
Speed setting advance recommendations.
–
 
Speed adjustment during cornering.
–
 
Semi-automatic lane changing.
By default, these functions are activated; but 
they can be deactivated.
For more information on these functions, refer to 
the corresponding sections.
The availability of the system depends on the 
country you are driving in.
This system is only to be used on eligible 
motorways and main roads.
Selecting/Deselecting the 
system
It is configured in the ADAS touch screen 
application.
The system's status is saved when the ignition is 
switched off.
Adaptive cruise control
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids  and 
to
 
Cruise control - particular 
recommendations.
This system automatically maintains the vehicle 
speed at a value set by the driver (speed 
setting), while respecting a safety distance from 
the vehicle in front (target vehicle) previously set 
by the driver. The system automatically manages 
the acceleration and deceleration of the vehicle.
With the Stop
  &   Go function, the system 
manages braking until the vehicle comes to a 
complete stop and the restarting of the vehicle.
The brake lamps come on if the vehicle  is slowed down by the system.
The system is not operational in the event of 
a brake lamp failure.
 
 
To do this, the system uses a camera fitted at the 
top of the windscreen and a radar fitted in the 
front bumper.
Primarily designed for driving on main 
roads and motorways, this system only 
works with moving vehicles driving in the 
same direction as your vehicle.
If the driver activates the direction 
indicator to overtake a slower vehicle, 
cruise control may temporarily reduce the 
distance to the target vehicle to facilitate 
overtaking, without exceeding the speed 
setting.
Steering-mounted controls 
 
 
 
1. Selection of cruise control alone or Highway 
Driver Assist (depending on version)/
Deselection
2. Switch on/pause cruise control at the 
previously saved speed setting
Confirmation of vehicle restart after automatic 
stop
3. Increase/Decrease the speed setting (if 
cruise control activated)
Activation of cruise control in progress (if 
cruise control deactivated)
Display and configuration of the inter-vehicle 
distance setting
4. Activation of cruise control in progress
Use the speed suggested by the Road signs 
recognition
For more information on the  Road signs 
recognition , refer to the corresponding section.   
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11 6
Driving
– When entering a tunnel or crossing a 
bridge.
If any of the following malfunctions 
occurs, do not use the system:
–
 
Following an impact on the windscreen 
close to the camera or on the front bumper
.
–
 
In case of a brake lamp failure.
If the vehicle has undergone any of the 
following modifications, do not use the 
system:
–
 
Carrying long objects on roof bars.
–
 
Towing.
–
 
Front end of the vehicle modified (for 
example by adding long-range headlamps or 
painting the front bumper).
–
 
Obstructed radar
 .
Malfunction
In the event of a malfunction, dashes are 
displayed (orange) instead of the speed setting.
This warning lamp comes on, accompanied by a message and an 
audible signal, to confirm the malfunction.
Have it checked by a CITROËN dealer or a 
qualified workshop.
Lane positioning assist
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids .
 
 
The system identifies the limits of the traffic 
lane and steers the vehicle inside this lane to 
maintain it in the lateral position chosen by the 
driver.
To do this, the system uses a camera placed on 
the upper part of the windscreen.
This function is primarily suitable for driving on 
motorways and main roads.
Activation/Deactivation
Lane positioning assist is automatically activated, 
after selecting
  Highway Driver Assist   mode.
For more information on Highway Driver Assist, 
refer to the corresponding section.
The selection is confirmed by the display of the 
symbols on the instrument panel, representing 
the steering wheel and the side lines.
The colour of the symbols depends on the 
operating state of the system:
(grey)
One or more operating conditions is not met; the 
system is paused.
(green)
All operating conditions are met; the 
system is active.
(orange)
System malfunction.
If the driver no longer wishes to use the system 
for some time, they can deactivate it by pressing 
the ASSIST button again (confirmed by the 
disappearance of the Driving aids mini-view on 
the instrument panel).
The system status is saved when the  ignition is switched off.
Operating conditions
– Adaptive  cruise control active.
–  ESC system operational.
–
 
ASR system activated.
–
 
No trailer detected.
–
 
No 'space-saver' spare wheel in use.
–
 
V
 ehicle not subject to strong lateral g-forces.
–
 
Direction indicators off upon activation of the 
system.
Cruise control
The driver must hold the steering wheel properly.
When cruise control is activated, the symbols are 
displayed in green: with small steering inputs, 
the system steers the vehicle and keeps it in the 
position chosen by the driver in the traffic lane.    
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11 7
Driving
6This position is not necessarily the centre of the 
lane.
You can feel the steering wheel moving.
At any time, the driver can change the position of 
the vehicle by intervening on the steering wheel 
and maintaining the position until the system has 
taken it into account. If the chosen position is too 
off-centre, an automatic re-centering manoeuvre 
can occur. The system adjusts to the newly 
defined position.
Pausing/Suspending the 
system
The driver must act promptly if they believe that the traffic conditions or the 
state of the road surface require their 
intervention, by moving the steering wheel to 
temporarily suspend system operation. Any 
intervention on the brake pedal that causes 
the Adaptive cruise control to pause will also 
cause the system to pause.
If the system detects that the driver is not 
holding the wheel firmly enough, it 
triggers a series of gradual alerts and then 
deactivates itself if there is no response from 
the driver.
If the function is suspended due to the 
prolonged release of the force holding 
the steering wheel, the system must be 
reactivated by pressing the  ASSIST button 
again.
Automatic pause
Pausing the system is accompanied by a specific 
audible signal. –
 
T
 riggering of the ESC.
–  
Insufficient lane detection. In this case, the 
Active lane departure warning system function 
can take over
 , and the system will reactivate 
itself once the operating conditions are met 
again.
Suspension by the driver
– Travelling outside the lane limits.
–  T oo tight a grip on the steering wheel or 
dynamic action on the steering wheel.
–
 
Action on the brake pedal (resulting in a pause 
until cruise control is reactivated) or accelerator 
pedal (suspension for as long as the pedal is 
depressed).
–
 
Pausing of 
 Adaptive cruise control.
–
 
Deactivation of the 
 ASR.
Driving situations and related alerts
The tables below describe the displays associated with the main driving situations.  The actual order of display of these alerts may be different.
Steering wheel-mounted 
controls Symbols
Comments
ASSIST or I I>
 
 
(grey) / (grey) Cruise control paused.
Highway Driver Assist switched off.   
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11 9
Driving
6MessagesDriving situations
"Hold the steering wheel "
(framed in red) Simultaneous loss of cruise control and lane positioning assist.
Operating limits
The system may issue an alert when the 
vehicle is travelling on a long, straight 
road with smooth road surface even if the 
driver thinks they are holding the steering 
wheel correctly.
The system may not operate or may produce 
unsuitable corrections to the steering in the 
following situations:
–
 
W
earing thick gloves (with Highway Driver 
Assist 2.0).
–
 
Poor visibility (insufficient road lighting, 
snowfall, rain, fog).
–
 
Dazzle (headlamps of an oncoming vehicle, 
low sun, reflections on a wet road surface, 
leaving a tunnel, alternating light and shade).
–
 
Windscreen area in front of the camera 
dirty
, misted up, frost-covered, snow-covered, 
damaged or covered by a sticker.
–
 
Lane markings eroded, partially hidden (snow
 , 
mud) or multiple (roadworks, surface joints).
–
 
T
ravelling in a tight bend.
–
 
Winding roads.
–
 
Road surface repairs.
Risk of undesirable operation
The system should be deactivated in the  following situations:
–
 
When changing a wheel or working near a 
wheel.
–
 
T
owing or with a bicycle carrier on a towing 
device, especially with trailer not plugged in or 
not approved.
–
 
Adverse weather conditions.
–
 
Road with low grip (risk of aquaplaning, 
snow
, ice).
–
 
Road works and toll areas.
–
 
Driving on racing circuits.
–
 
Driving on a rolling road.
Malfunction
In the event of a malfunction, the 
Service warning lamp comes on 
and this (orange) symbol appears on the 
instrument panel, accompanied by the display of 
a message and an audible signal.
Have it checked by a CITROËN dealer or a 
qualified workshop.
Speed adjustment during 
cornering
(with Highway Driver Assist 2.0)
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids  and the 
Cruise control - particular 
recommendations.
In addition to Adaptive Cruise Control with 
Stop&Go and Lane positioning assist systems, 
this system regulates the speed of the vehicle in 
bends.
It adapts the speed, with or without target 
vehicle, in certain bends on motorways or main 
roads.
The speed is only adjusted if the vehicle speed is 
not compatible with the angle of the bend.
The reduction in speed on a bend is adapted 
to the situation in order to ensure the bend is 
navigated comfortably.
In the presence of a target vehicle, it also 
maintains the inter-vehicle distance.
This system does not manage bends that  are too tight ("hairpin bend" for example).   
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120
Driving
Operating conditions
– Eligible roads: roads with separate 
carriageways with prohibited access for 
pedestrians and cyclists.
–
 
Highway Driver 
 Assist 2.0 activated.
–
 
V
 ehicle speed between 43 and 112 mph (70 
and 180 km/h).
Operation
The vehicle is moving at the 
speed setting and is monitoring 
bends.
The system gradually decreases 
the speed in the bend to 
negotiate it comfortably.
Temporary driver intervention
If the driver believes that the speed is too slow or 
too fast, they can act on the pedals.
Pressing the brake pedal deactivates Highway 
Driver Assist 2.0, while pressing the accelerator 
pedal temporarily suspends it.
Semi-automatic lane 
changing
(with Highway Driver Assist 2.0)
For more information, refer to the 
General recommendations on the use 
of driving and manoeuvring aids .
This system assists the driver in changing lanes.
To do this, it uses the camera located at the top 
of the windscreen, the radar located at the front 
and the four angle radars fitted in the bumpers.
The steering wheel is equipped with a  hands-on detection system to avoid 
distraction on the part of the driver.
For more information on the  Hands-on 
detection, refer to the corresponding section.
The system cannot in any circumstances  replace the need for vigilance on the part 
of the driver. The driver remains responsible 
for their driving by monitoring their 
surroundings and keeping their hands on the 
steering wheel.
The driver must act promptly if they believe 
that the traffic conditions or the state of the 
road surface require their intervention, by 
moving the steering wheel to temporarily 
suspend system operation.
Any intervention on the brake pedal or the 
accelerator pedal that causes the adaptive 
cruise control to be paused or suspended will 
also cause the system to deactivate.
System selection
Two possibilities:
–  Either , when the vehicle is already driving on 
an eligible road, the driver selects the system via 
the Highway Driver Assist 2.0 system activation.
–
 
Or
 , when the driver is already using Highway 
Driver Assist, the vehicle suggests selecting 
the system upon arriving at an eligible road by 
pressing the  OK button.
Activation/Deactivation 
 
â–º Activate the direction indicator on the side 
corresponding to the lane change, whether or 
not passing the resistance point of the lighting 
control stalk.
The driver can regain control of the vehicle at 
any time:
–
 
by deactivating the direction indicator if the 
vehicle has not yet crossed the line.
–
 
by firmly holding the steering wheel.   
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121
Driving
6– by acting on the pedals.
For more information on the  Direction 
indicators
, refer to the corresponding section.
Operating conditions
– Eligible roads: roads with separate 
carriageways with prohibited access for 
pedestrians and cyclists.
–
 
The line separating the lanes must be clear 
enough to be identified by the system.
–
 
The position and speed of other vehicles must 
enable the system to safely change lanes.
–
 
Highway Driver 
 Assist 2.0 activated.
–
 
Lane positioning assist activated.
–
 
V
 ehicle speed between 43 and 112 mph (70 
and 180 km/h).
Authorised lane change  request
When operating the direction indicator, if the 
necessary conditions are met, the message 
"OK?" is displayed on the instrument panel, 
accompanied by an audible signal.
 
 
 
 
â–º After checking the surroundings, press 
2-OK  to confirm the start of the lane change 
manoeuvre.
The message "Stay alert"
  is displayed as a 
reminder that the driver is responsible for the 
manoeuvre.
 
 
The system then proceeds with the vehicle’s 
lane change.
Once the manoeuvre has been carried out, the 
system is automatically deactivated and the lane 
positioning assist takes over.
If the direction indicator has been set beyond the 
point of resistance, the driver must pull it back.
The driver must hold the steering wheel  correctly.
As soon as the semi-automatic lane change 
begins, the system directs the vehicle to the 
target lane by small actions on the steering to 
position it in the destination lane.
You can feel the steering wheel moving.
Interruption of lane change
It is possible that during a lane change, the 
necessary conditions for the functioning of the 
system may no longer be met.
 
 
If this occurs before either wheel has crossed 
the line between the two lanes, the system will 
automatically return the vehicle to its original 
lane (confirmed by displaying a manoeuvre 
cancellation message on the digital instrument 
panel and an audible signal). Then the system 
automatically deactivates itself.
 
 
If this occurs while the lane change has begun, 
the system asks the driver to immediately 
regain control of the vehicle (confirmed by the 
display of a message on the digital instrument