CITROEN C5 AIRCROSS 2020 Handbook (in English)
Manufacturer: CITROEN, Model Year: 2020, Model line: C5 AIRCROSS, Model: CITROEN C5 AIRCROSS 2020Pages: 292, PDF Size: 8.59 MB
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139
The units for the speed limits (mph or 
km/h) depend on the country you are 
driving in.
It should be taken into account so that you 
obser ve the speed limit.
For the system to operate correctly when 
you change country, the units for speed in 
the instrument panel must be those for the 
country you are driving in.
Speed limit for vehicles whose gross vehicle 
weight or gross train weight is less than 
3.5
 
tonnes
56   mph (90   km/h) (for example)
Speed limit in snow
Example: If the exterior temperature is below 3°C:
19  mph (30   km/h) (for example)
with a "snowflake" symbol
Speed limit at cer tain times
Example: 19  mph (30   km/h) (for example)
with a "clock" symbol
The automatic reading of road signs is 
a   driving aid system and does not always 
display speed limits correctly.
The speed limit signs present on the road 
always take priority in comparison with the 
display by the system.
The system is designed to detect signs 
that conform to the Vienna Convention on 
road signs. Specific speed limits, such as those for 
heavy goods vehicles, are not displayed.
The display of the speed limit in the 
instrument panel is updated as you pass 
a
  speed limit sign intended for cars (light 
vehicles).
6 
Driving  
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140
Activation/Deactivation
By default, the system is automatically 
activated at every engine start.The function is activated and 
deactivated in the Driving /Vehicle  
menu of the touch screen.
Displays in the instrument panel
1. Detected speed limit indication.
or
2. Indication of the end of the speed limit.
The system is active but is not detecting speed 
limit information. On detection of speed limit information, the 
system displays the value.Operating limits
The legislation on speed limits is specific to 
each country.
The system does not take account of reduced 
speed limits in the following cases:
-
 
p
 oor weather (rain, snow),
-
 a
tmospheric pollution,
-
 w
hen towing,
-
 
d
 riving with a   space-saver type spare wheel 
or snow chains fitted,
-
 p
uncture repair using the temporary repair 
kit,
-
 y
oung drivers, etc. The following situations may interfere with 
the operation of the system or prevent it from 
working:
-
 
p
 oor visibility (inadequate street lighting, 
falling snow, rain, fog),
-  
w
 indscreen area located in front of the 
camera dirty, misted, frost-covered, snow-
covered, damaged or covered by a   sticker,
-  
f
 ault with the camera,
-  
o
 bsolete or incorrect mapping,
-  
o
 bstructed road signs (by other vehicles, 
vegetation, snow),
-  
s
 peed limit signs that do not conform to the 
standard, are damaged or distorted.
Recommendation
For a suggested maximum speed, the first 
t ime that the vehicle's speed exceeds it by 
more than 3
  mph (5   km/h) (example: 59   mph 
(95
  km/h)), the speed flashes for 10   seconds.
In addition to Speed Limit recognition and 
recommendation , the driver can select the 
speed displayed as a
  speed setting for the 
speed limiter or cruise control using the speed 
limiter or cruise control storage button. 
Driving  
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141
For more information on the Speed 
limiter, Cruise control or Adaptive 
cruise control , refer to the corresponding 
sections.
Steering mounted controls
1. Select speed limiter/cruise control mode.
2. Memorise a
 
speed setting.
Display in the instrument panel
3.Speed limit indication.
4. Offer to memorise the speed.
5. Current speed setting.
Memorising the speed
On detection of a sign offering a new speed 
l imit, the system displays the value and " MEM" 
flashes for a
  few seconds to offer to make it 
a
  new speed setting.
If there is a
  difference of less than 6   mph 
(9
  km/h) between the speed setting and 
the speed displayed by the Speed Limit 
recognition and recommendation, the 
" MEM " symbol is not displayed.
Depending on the road conditions, several 
speeds may be displayed.
F
 
P
 ress button 2   once to save the suggested 
speed value.
A message is displayed to confirm the request. F
 
P
 ress button 2   again
 to confirm and save 
the new speed setting.
After a   predetermined period, the screen 
returns to the current display.
Extended Traffic Sign 
RecognitionF Switch on the speed limiter/cruise control.
The speed limiter/cruise control information is 
displayed.
This additional system recognises these road 
signs and displays them in the instrument panel 
if the appropriate display mode is selected.
One-way street: if you start driving the wrong 
way down a
  one-way street, an alert message, 
including the sign's symbol, is displayed in the 
instrument panel (request to check the traffic 
direction).
Other signs: when approaching one of these 
signs, the sign's symbol is displayed in the 
instrument panel.
The real road signs always take priority 
over the display from the system.
The signs must comply with the Vienna 
Convention on road signs.
6 
Driving  
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142
Programmable speed 
limiter
Steering mounted control
For more information on Memorising speeds 
or on the Speed Limit recognition and 
recommendation , refer to the corresponding 
sections.
Displays in the instrument panel
Switching on/pausing
F Turn the thumbwheel 1   to the LIMIT position 
to select the speed limiter; the function is 
paused.
F
 
I
 f the speed setting is suitable (last speed 
setting programmed in the system), press 
button 4
  to switch the speed limiter on.
F
 
P
 ressing button 4   again temporarily 
interrupts the function (pause).
Adjusting the Speed 
Limit recognition and 
recommendation setting
You do not have to switch the speed limiter on 
in order to set the speed.
To modify the limit speed setting from the 
current speed of the vehicle:
F
 
i
 n steps of +/- 1   mph (km/h), make 
successive short presses on button 2
  or 3,
F
 
c
 ontinuously, in steps of +/- 5   mph (km/h), 
press and hold button 2
  or 3.
1. ON (LIMIT  position)/OFF ( 0
 
position).
2. Reduce the speed setting.
3. Increase the speed setting. 4.
Pause/resume speed limiter with the 
speed setting previously stored.
5. Depending on version:
Display of speed thresholds recorded 
using Memorising speeds.
or
Use the speed suggested by the Speed 
Limit recognition and recommendation 
(MEM  display).
6. Indication of speed limiter on (amber 
colour)/pause (grey colour).
7. Indication of speed limiter mode selection.
8. Programmed speed value.
9. Speed suggested by the Speed Limit 
recognition and recommendation system 
(depending on version).
Refer to the General recommendations on 
the use of driving and manoeuvring aids
.
This system prevents the vehicle 
from exceeding the speed 
programmed by the driver (speed 
setting).
The speed limiter is switched on  manually.
The minimum speed setting is 19
 
mph 
(30
 
km/h).
The speed setting remains in the system 
memory when the ignition is switched off.
To modify the limit speed setting using 
memorised speeds and from the touch screen:
F
 
p
 ress button 5   to display the memorised 
speed settings,
F
 
p
 ress the button for the desired speed 
setting. 
Driving  
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143
To modify the speed limiter setting using 
the speed suggested by the Speed Limit 
recognition and recommendation system:
F 
t
 he speed suggested is displayed in the 
instrument panel,
F
 
m
 ake a   first press on button 5 ; a message 
is displayed to confirm the memorisation 
request,
F
 
p
 ress button 5   again to save the suggested 
speed.
The speed displays immediately in the 
instrument panel as the new speed setting.
Temporarily exceeding the 
programmed speed
When the limit speed is exceeded but this is not 
due to action by the driver (in case of a   steep 
slope, for example), an audible signal triggers 
immediately.
Once the speed of the vehicle returns to 
the programmed setting, the speed limiter 
functions again: the display of the programmed 
speed setting becomes fixed again.
Switching off
F To temporarily exceed the programmed  speed threshold, fully depress the 
accelerator pedal.
The speed limiter is deactivated temporarily 
and the displayed programmed speed flashes.
If it is exceeded for a
  prolonged period of time, 
an audible warning is triggered.
Simply release the accelerator pedal to return 
to below the programmed speed. F
 
T
 urn the thumbwheel 1   to the "
0" position: 
the display of information on the speed 
limiter disappears.
Malfunction
Flashing of the dashes indicates a fault with the 
sp eed limiter.
Have it checked by a
  CITROËN dealer or 
a
 
qualified workshop. On sharp acceleration, as when 
descending a
  steep hill, the speed limiter 
will not be able to prevent the vehicle from 
exceeding the programmed speed.
The speed limiter is deactivated 
temporarily and the displayed 
programmed speed flashes.
An audible signal accompanies the 
flashing of the programmed speed when 
exceeding the speed is not due to an 
action by the driver.
The use of mats not approved by 
CITROËN may inter fere with the operation 
of the speed limiter.
To avoid any risk of jamming of the pedals:
-  
e
 nsure that the mat is positioned 
c o r r e c t l y,
-  
n
 ever fit one mat on top of another.
The selection screen closes after a
 
few 
moments.
This setting becomes the new limit speed.
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Driving  
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144
Cruise control – particular 
recommendations
For the safety of everyone, only use the 
cruise control where the driving conditions 
allow running at a  constant speed and 
keeping an adequate safety distance.
Remain vigilant  when the cruise control 
is activated. If you hold one of the speed 
setting modification buttons, a very rapid 
change in the speed of your vehicle may 
o c c u r.
When descending a
 
steep hill, the cruise 
control system cannot prevent the vehicle 
from exceeding the set speed. Brake if 
necessary to control the speed of your 
vehicle.
On steep climbs  or when towing, the set 
speed may not be reached or maintained. Exceeding the programmed speed 
setting
The speed setting can be exceeded 
temporarily
 by pressing the accelerator 
pedal (the programmed speed flashes).
To return to the speed setting, release 
the accelerator pedal (when this speed is 
reached again, the display of the speed 
stops flashing).
Operating limits
Never use the system in the following 
situations:
-
 
i
 n an urban area with the risk of 
pedestrians crossing the road,
-
 
i
 n heavy traffic (except versions with 
the Stop & Go function),
-
 
o
 n winding or steep roads,
-
 
o
 n slippery or flooded roads,
-
 
i
 n unfavourable climatic conditions,
-
 
d
 riving on a   speed circuit,
-
 
d
 riving on a   rolling road,
-
 
u
 se of snow chains, non-slip covers or 
studded tyres.
Programmable cruise 
control
Refer to the General recommendations 
on the use of driving and manoeuvring 
aids  and to Cruise control – par ticular 
recommendations .
This system automatically keeps 
the vehicle's speed at the cruise 
value programmed by the driver 
(speed setting), without using the 
accelerator pedal.
The cruise control is switched on  manually.
It requires a
  minimum vehicle speed of 25   mph 
(40
 
km/h).
With a
  manual gearbox, it requires the 
engagement of third gear or higher.
With an automatic gearbox, it requires the 
engagement of mode D or of second gear or 
higher in mode M .
The cruise control remains active after 
changing gear regardless of the gearbox 
type on engines fitted with Stop & Start. 
Driving  
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145
Steering mounted control
1.ON (CRUISE  position)/OFF ( 0   position).
2. Activation of cruise control at the current 
speed/decrease speed setting.
3. Activation of cruise control at the current 
speed/increase speed setting.
4. Pausing/resumption of cruise control with 
the speed setting previously stored.
5. Depending on version:
Display of speed thresholds recorded 
using Memorising speeds.
or
Use the speed suggested by the Speed 
Limit recognition and recommendation 
(MEM  display). For more information on Memorising speeds
 
or on the Speed Limit recognition and 
recommendation , refer to the corresponding 
sections.
Displays in the instrument panel
Switching on/pausing
F Turn the thumbwheel 1   to the "CRUISE " 
position to select cruise control mode; the 
function is paused. F
 
T
 o start the cruise control and set a   cruise 
speed, once the vehicle has reached the 
desired speed, press button 2   or 3
; the 
current speed of your vehicle becomes the 
cruise speed setting.
You can release the accelerator pedal.
F  
P
 ressing button 4   temporarily interrupts 
operation of the system (pause).
F  
P
 ressing button 4   again restores operation 
of the cruise control (ON).
6. Indication of speed limiter on (amber 
colour)/pause (grey colour).
7. Indication of cruise control mode 
selection.
8. Value of the speed setting.
9. Speed suggested by the Speed Limit 
recognition and recommendation system 
(depending on version).
Modifying the cruise speed 
setting
The cruise control must be active.
To modify the cruise speed setting from the 
current speed of the vehicle:
F
 
i
 n steps of +/- 1   mph (km/h), make 
successive short presses on button 2
  or 3,
F
 
c
 ontinuously, in steps of +/- 5   mph (km/h), 
press and hold button 2
  or 3.
Take care: pressing and holding button 
2
  or 3   results in a   rapid change in the 
speed of your vehicle.
Switching off the ignition cancels any 
speed setting.
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Driving  
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146
To modify the cruise speed setting using 
memorised speed settings and from the touch 
screen:
F 
p
 ress button 5   to display the memorised 
speed settings,
F
 
p
 ress the button for the desired speed 
setting.
The selection screen closes after a
  few 
moments.
This setting becomes the new cruise speed.
To modify the cruise speed setting from the 
speed suggested by the vehicle Speed Limit 
recognition and recommendation:
F
 
t
 he speed suggested is displayed in the 
instrument panel,
F
 
m
 ake an initial press on button 5 ; a 
message is displayed to confirm the 
memorisation request.
F
 
p
 ress button 5   again to save the suggested 
speed.
The speed displays immediately in the 
instrument panel as the new speed setting.
Switching off
F Turn the thumbwheel 1   to the "0" position: 
the cruise control information disappears 
from the screen.
Malfunction
As a precaution, it is recommended 
t hat the cruise speed chosen be close 
to the current speed of your vehicle, so 
as to avoid any sudden acceleration or 
deceleration of the vehicle.
Memorising speeds
Linked to the speed limiter and programmable 
cruise control, this function allows speed limits 
to be registered which will then be suggested 
as settings for these two systems.
You can memorise several speed settings for 
each for system.
By default, some speed settings are already 
memorised. As a
  safety measure, the driver must 
only modify the speed settings when 
stationary.
Memorising speeds
From the Driving/Vehicle  menu of 
the touch screen, select " Driving 
functions ", then "Memorised 
speed settings ".
"MEM " button
Flashing dashes indicate a fault with the cruise 
c ontrol system.
Have it checked by a
  CITROËN dealer or 
a
 
qualified workshop. 
Driving  
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147
For more information on the Speed limiter or 
Cruise control , refer to the associated section.
With this button, you can select a
  memorised 
speed setting to use with the speed limiter or 
the programmable cruise control.
Highway Driver Assist
This system provides active assistance in 
keeping the vehicle in position in its lane.
It associates the Adaptive Cruise Control with 
Stop & Go function and Active Lane Keeping 
Assist.
These two functions must be activated and in 
operation.
These functions are especially suitable for 
driving on motor ways and main roads.
For more information on Adaptive Cruise 
Control  and Active Lane Keeping Assist , 
refer to the corresponding sections. The system assists the driver in managing 
the steering, acceleration and braking 
within the limits of the laws of physics 
and the capabilities of the vehicle. Some 
road infrastructure elements or vehicles 
present on the road may not be properly 
seen or may be poorly interpreted by the 
camera and radar, which may lead to an 
unexpected change in direction, a lack of 
steering correction and/or inappropriate 
management of the acceleration or 
braking.
Adaptive Cruise Control
Refer to the General recommendations 
on the use of driving and manoeuvring 
aids
 and to Cruise control – par ticular 
recommendations .
This system automatically  maintains the 
speed of your vehicle at a
  value which you set 
(speed setting), while keeping a
  safe distance 
from the vehicle in front (target vehicle), and 
which has been set beforehand by the driver. 
The system automatically manages the 
acceleration and deceleration of the vehicle. With the Stop function
, the system manages 
the braking until the vehicle stops completely.
With the Stop & Go function, the system 
manages the braking until the vehicle stops 
completely, and also manages its restarting.
To do so, it has a   camera located at the top of 
the windscreen and, depending on version, a 
radar located in the front bumper.
Primarily designed for driving on main 
roads and motor ways, this system only 
works with moving vehicles driving in the 
same direction as your vehicle.
If the driver operates a
  direction indicator 
to overtake a
  slower vehicle, the cruise 
control allows your vehicle to temporarily 
approach the vehicle in front to assist 
the overtaking manoeuvre, without ever 
exceeding the speed setting.
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Driving  
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148
Some vehicles present on the road may 
not be properly seen or may be poorly 
interpreted by the camera and/or radar 
(e.g. a lorry), which may lead to a  poor 
assessment of the distances and lead to 
the vehicle inappropriately accelerating or 
braking.
Steering mounted control UseActivate the system (when paused)
F With the engine running, turn the 
thumbwheel  1   downwards to the CRUISE  
position. Cruise control is ready to operate 
(grey display).
Start cruise control and select 
a   speed
With a manual gearbox, your speed must be 
b etween between 19   and 112   mph (30   and 
180
 
km/h).
With an automatic EAT6
  gearbox, your speed 
must be between between 1.2 
  and 112   mph 
(2
  and 180   km/h).
With an automatic EAT8
  gearbox, your speed 
must be between between 0
  and 112   mph 
(0
  and 180   km/h).
F
 
P
 ress button 2   or 3: the current speed 
becomes the speed setting (minimum 
19
  mph (30   km/h)) and cruise control is 
immediately in operation (green displayed).
F
  Press  3
  to increase or 2   to decrease the 
speed setting (steps of 5
  mph (km/h) if held 
pressed). Pressing and holding button 2
  or 3   results 
in a   rapid change in the speed of your 
vehicle.
1 ON ( CRUISE  position)/OFF ( 0
 
position).
2 Activation of cruise control at the current 
speed/decrease speed setting.
3 Activation of cruise control at the current 
speed/increase speed setting.
4 Pausing/resumption of cruise control with 
the speed setting previously stored.
Confirmation of the restarting of the 
vehicle after automatic stop (versions with 
Stop & Go function). 5
Use the speed suggested by the Speed 
Limit recognition and recommendation 
(MEM  display).
6 Display and adjustment of the distance 
setting to the vehicle in front.
Pause/resume cruise control
F Press  4   or press the brake pedal . To pause 
cruise control, you may also:
-
 
s
 hift from mode D to N ,
-
 
p
 ress the clutch pedal for more than 
10
 
seconds,
-
 
p
 ress the electric parking brake control.
F
  Press  4
  to restart cruise control. 
Cruise control may have been paused 
automatically:
-
 
w
 hen the speed of the vehicle goes below 
19
  mph (30   km/h) with a   manual gearbox,
-
 
w
 hen the speed of the engine goes below 
1,100
  rpm with a   manual gearbox,
-
 
b
 y triggering of the ESC system.
With an EAT6
  gearbox, following braking of 
the vehicle bringing it to a
  complete stop, the 
system holds the vehicle stationary; the cruise 
control is paused. The driver should press 
the accelerator pedal to move off, then above 
1.2
  mph (2   km/h), reactivate the system by 
pressing one of the buttons 2 , 3
  or 4. 
Driving