CITROEN C3 AIRCROSS 2021 Handbook (in English)
Manufacturer: CITROEN, Model Year: 2021, Model line: C3 AIRCROSS, Model: CITROEN C3 AIRCROSS 2021Pages: 244, PDF Size: 6.29 MB
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6the whole manoeuvre, in particular using the 
mirrors.
 
 
Driving aids camera
This camera and its associated functions 
may be impaired or not work if the windscreen 
area in front of the camera is dirty, misty, 
frosty, covered with snow, damaged or 
masked by a sticker.
In humid and cold weather, demist the 
windscreen regularly.
Poor visibility (inadequate street lighting, 
heavy rain, thick fog, snowfall), dazzle 
(headlamps of an oncoming vehicle, low sun, 
reflections on a damp road, leaving a tunnel, 
alternating shade and light) can also impair 
detection performance.
In the event of a windscreen replacement, 
contact a CITROËN dealer or a qualified 
workshop to recalibrate the camera; 
otherwise, the operation of the associated 
driving aids may be disrupted.
Other cameras
The images from the camera(s) 
displayed on the touch screen or on the 
instrument panel may be distorted by the 
relief.
In the presence of areas in shade, or in 
conditions of bright sunlight or inadequate 
lighting, the image may be darkened and with 
lower contrast.
Obstacles may appear further away than they 
actually are.
Sensors
The operation of the sensors as well as 
the associated functions may be disturbed 
by sound interference such as that emitted 
by noisy vehicles and machinery (e.g. lorries, 
pneumatic drills), by the accumulation of 
snow or dead leaves on the road or in the 
event of damaged bumpers and mirrors.
When reverse gear is engaged, an audible 
signal (long beep) indicates that the sensors 
may be dirty.
A front or rear impact to the vehicle can 
upset the sensors’ settings, which is not 
always detected by the system: distance 
measurements may be distorted.
The sensors do not systematically detect 
obstacles that are too low (pavements, studs) 
or too thin (trees, posts, wire fences).
Certain obstacles located in the sensors’ blind 
spots may not be detected or may no longer 
be detected during the manoeuvre.
Certain materials (fabrics) absorb sound 
waves: pedestrians may not be detected.
Maintenance
Clean the bumpers and door mirrors and 
the field of vision of the cameras regularly.
When washing your vehicle at high pressure, 
direct the spray from at least 30 cm away from the sensors and cameras.
Mats
The use of mats not approved by 
CITROËN may interfere with the operation of 
the speed limiter or cruise control.
To avoid any risk of jamming the pedals:
– Ensure that the mat is secured correctly .– Never fit one mat on top of another.
Units of speed
Ensure that the units of speed displayed 
in the instrument panel (mph or km/h) are 
those for the country you are driving in.
If this is not the case, when the vehicle is 
stationary, set the display to the required 
units of speed so that it complies with what is 
authorised locally.
In case of doubt, contact a CITROËN dealer 
or a qualified workshop.
Head-up  display
System which projects various information onto a 
smoked blade in the driver's field of vision so that 
they do not have to take their eyes off the road.  
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Information displayed 
during operation
 
 
Once the system has been activated, the 
following information is grouped together in the 
head-up display:
A.The speed of your vehicle.
B. Cruise control/speed limiter information.
C. If your vehicle is suitably equipped, automatic 
emergency braking alerts and navigation 
instructions.
D. If your vehicle is suitably equipped, speed 
limit information.
For more information on  Navigation, 
refer to the section Audio equipment 
and telematics.
Selector 
  
 
1. On.
2. Off (long press).
3. Brightness adjustment.
4. Display height adjustment.
Activation / Deactivation
► With the engine running, press button 1 to 
activate the system and deploy the blade.
 
 
► Press and hold button 2 to deactivate the 
system and retract the blade.
The activated/deactivated state is saved and 
restored on restarting the engine.
Height adjustment
► With the engine running, adjust the display to the desired height using buttons  4:• up to move the display up,• down to move the display down.
Brightness adjustment
► With the engine running, adjust the brightness of the information display using button 
3:
• the "sun" to increase the brightness,• the "moon" to decrease the brightness.
When stationary or while driving, no 
objects should be placed around the 
blade (or in its recess) so as to not impede 
deployment of the blade and its correct 
operation.
In certain extreme weather conditions (rain and/or snow, bright sunshine, etc.) 
the head-up display may not be legible or 
may suffer temporary interference.
Some sunglasses may hamper reading of the 
information.
To clean the blade, use a clean, soft cloth 
(such as a spectacles cloth or microfibre 
cloth). Do not use a dry or abrasive cloth 
or detergent or solvent products as these 
could scratch the blade or damage the anti-
reflection coating.
This system operates when the engine is  running, and the settings are saved when 
the ignition is switched off.
Memorising speeds
This function allows speeds to be saved, which 
can then be offered to set the two systems: the 
speed limiter (to limit the speed of the vehicle) or 
the cruise control (for a vehicle cruising speed).
You can memorise up to six speed settings for 
each of the two systems.
By default, some speed settings are already 
memorised.
As a safety measure, the driver must only  modify the speed settings when 
stationary.  
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6In certain extreme weather conditions 
(rain and/or snow, bright sunshine, etc.) 
the head-up display may not be legible or 
may suffer temporary interference.
Some sunglasses may hamper reading of the 
information.
To clean the blade, use a clean, soft cloth 
(such as a spectacles cloth or microfibre 
cloth). Do not use a dry or abrasive cloth 
or detergent or solvent products as these 
could scratch the blade or damage the anti-
reflection coating.
This system operates when the engine is  running, and the settings are saved when 
the ignition is switched off.
Memorising speeds
This function allows speeds to be saved, which 
can then be offered to set the two systems: the 
speed limiter (to limit the speed of the vehicle) or 
the cruise control (for a vehicle cruising speed).
You can memorise up to six speed settings for 
each of the two systems.
By default, some speed settings are already 
memorised.
As a safety measure, the driver must only  modify the speed settings when 
stationary.
Memorising speeds 
 
This function can be accessed in the Driving / Vehicle menu of the touch 
screen.
► Select the "Driving functions " tab.► Select the "Adjusting Speeds " function. 
 
► Select the "Speed limiter" or "Cruise 
control" tab corresponding to the equipment you 
want to memorise new speed settings for.
► Select the speed setting you want to change.► Enter the new value using the numeric keyboard and confirm.
► By default, some speed settings are already memorised.
“MEM” button 
 
With this button, you can select a memorised 
speed setting to use with the speed limiter or the 
programmable cruise control.
For more information on the  Speed limiter or 
Cruise control, refer to the associated section.
Speed Limit  Recognition 
and Recommendation
Refer to the General recommendations on the 
use of driving and manoeuvring aids .
 
   
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This system displays the maximum authorised 
speed in the instrument panel, according to 
the speed limits in the country in which you are 
driving, using:
– Speed limit signs detected by the camera.– Speed limit details from the navigation system mapping.
Navigation mapping should be regularly 
updated in order to receive accurate 
speed limit information from the system.
The units for the speed limit (mph or  km/h) depend on the country you are 
driving in.
This should be taken into account so that you 
observe the speed limit.
For the system to work correctly when 
changing country, the speed unit in the 
instrument panel must correspond to that of 
the country you are driving in.
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 over 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 when passing 
a speed limit sign intended for cars (light 
vehicles).
Display on the instrument 
panel
 
  
 
Head-up display
1. Speed limit indication
Speed display 
 
The system is active but is not detecting speed 
limit information.
 
 
On detection of speed limit information, the 
system displays the value.
 
 
The driver can adjust the vehicle’s speed according to the information given by the system.
Activation / Deactivation
The system is activated or deactivated via the 
vehicle configuration menu.
Without audio system
►  In the "DRIVE ASSIST" menu on the 
instrument panel display, activate/deactivate 
"ADVISED SPEED" (Speed limit recognition).
With audio system
►  In the "Personalisation-
configuration " menu, activate/deactivate 
"Speed recommendation".
With touch screen
►  In the Driving / Vehicle menu, select 
the "Vehicle settings" tab, then 
"Security" and activate/deactivate " Displaying 
of the recommended speed.".
Information display
With an LCD text instrument panel, the speed 
limit recognition information is displayed after the 
trip computer information.
To display it: 
 
   
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Driving
6The driver can adjust the vehicle’s speed 
according to the information given by the system.
Activation / Deactivation
The system is activated or deactivated via the 
vehicle configuration menu.
Without audio system
► In the "DRIVE ASSIST" menu on the 
instrument panel display, activate/deactivate 
"ADVISED SPEED" (Speed limit recognition).
With audio system
► In the "Personalisation-
configuration " menu, activate/deactivate 
"Speed recommendation".
With touch screen
► In the Driving / Vehicle menu, select 
the "Vehicle settings" tab, then 
"Security" and activate/deactivate " Displaying 
of the recommended speed.".
Information display
With an LCD text instrument panel, the speed 
limit recognition information is displayed after the 
trip computer information.
To display it: 
 
 
► Press the button located on the end of the wiper control stalk . 
 
► Or, depending on equipment, press the knob located on the steering wheel.
Operating limits
The system does not take account of reduced 
speed limits, especially those imposed in the 
following cases:
– poor weather (rain, snow),– atmospheric pollution,– when towing,– driving with a space-saver type spare wheel or snow chains fitted,– Tyre repaired using the temporary puncture repair kit,– young drivers.It is possible for the system to not display the 
speed limit if it does not detect a speed limit 
sign within a preset period and in the following 
situations:
– road signs that are obstructed, do not comply with the standard, are damaged or distorted,– obsolete or incorrect maps.
Memorising the speed 
setting
  
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 memorisation button.
For more information on the  Speed 
limiter or Cruise control, refer to the 
corresponding sections.
Steering mounted  controls
1.Speed limiter/cruise control mode selection
2. Memorise the speed setting
Display on the instrument panel 
    
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Head-up display 
 
3.Speed limit indication.
4. Request to memorise the speed.
5. Current speed of the vehicle.
6. Current speed setting.
Memorising the speed  
► Switch on the speed limiter/cruise control.The speed limiter/cruise control information is 
displayed. 
 
 
Upon detecting a sign suggesting a new speed 
setting, the system displays the value and a 
message prompting you to save it as the new 
speed setting. "MEM" flashes for a few seconds 
on the display.
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.
 
 
► Press button  2once to save the suggested 
speed value.
A message is displayed to confirm the request.
 
 
► Press button  2again to confirm and save the 
new speed setting.
The display then reverts to its previous state.
Speed limiter
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.
Steering mounted control 
  
 
1.ON (LIMIT  position) / OFF (position 0)
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)
For more information on  Memorising speeds 
or on the Speed Limit Recognition and 
Recommendation, refer to the corresponding 
sections.
Displays in the instrument 
panel
 
  
   
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64.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)
For more information on  Memorising speeds 
or on the Speed Limit Recognition and 
Recommendation, refer to the corresponding 
sections.
Displays in the instrument 
panel
 
  
 
Head-up display 
 
6. Speed limiter mode selection indication
7. Speed limiter on/pause status indication
8. Programmed speed setting value
9. Speed suggested by the Speed Limit 
Recognition and Recommendation
Switching on / Pausing 
 
► Turn thumbwheel  1 to the "LIMIT"position 
to select speed limiter mode; the function is 
paused.
 
 
► If the limit speed setting is suitable (most recent speed setting programmed in the system), press button 4 to switch the speed limiter on.► Pressing button 4 again temporarily interrupts 
the function (pause).
When the speed setting remains below 
the vehicle's speed for a prolonged 
period of time, an audible warning is emitted.
Adjusting the limit speed  setting
You do not have to switch the speed limiter on in 
order to set the speed.
To modify the limit speed setting based on the 
vehicle’s current speed:
► Briefly press button  2 or 3 to change the value in steps of + or - 1 mph (1.6 km/h).► Press and hold button  2 or 3 to change the value in steps of + or - 5 mph (8 km/h).To change the limit speed setting based on the 
speed suggested by the Speed Limit Recognition 
and Recommendation:
► the suggested speed is displayed on the instrument panel,► press button  5 once; a message is displayed, 
confirming the memorisation request,  
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► press button 5 again to save the suggested 
speed.
The speed is immediately displayed as the new 
speed setting on the instrument panel.
Temporarily exceeding the 
speed setting
► Press the accelerator pedal down fully .The speed limiter is deactivated temporarily and 
the displayed speed setting flashes.
► Release the accelerator pedal to return to below 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.
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.
Brake if necessary to control the speed of 
your vehicle.
Once the speed of the vehicle returns to the 
programmed setting, the speed limiter functions 
again: the display of the speed setting becomes 
fixed again.
Switching off
► Turn the thumbwheel  1 to the "OFF" position: 
the display of information on the speed limiter 
disappears.
Malfunction 
 
The display of dashes (flashing then fixed) 
indicates a fault with the speed limiter.
Have it checked by a CITROËN dealer or a 
qualified workshop.
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 down, a very 
rapid change in the speed of your vehicle may 
occur.
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
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.– On winding or steep roads.– On slippery or flooded roads.– In poor weather conditions.– Driving on a speed circuit.– Driving on a rolling road.– When using snow chains, non-slip covers or studded tyres.
Cruise control
Refer to the General recommendations on the 
use of driving and manoeuvring aids  and to 
Cruise control - particular 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, third gear or higher must 
be engaged.
With an automatic gearbox, mode D or second gear or higher in mode M must be engaged.
The cruise control remains active after  changing gear, regardless of the gearbox 
type, on engines fitted with Stop & Start.
Switching off the ignition cancels any 
speed setting.
Steering mounted control 
 
1. ON (CRUISE position) / OFF
2. Activate cruise control at the current speed / 
decrease speed setting  
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6programmed 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, third gear or higher must 
be engaged.
With an automatic gearbox, mode D or second gear or higher in mode M must be engaged.
The cruise control remains active after  changing gear, regardless of the gearbox 
type, on engines fitted with Stop & Start.
Switching off the ignition cancels any 
speed setting.
Steering mounted control 
 
1.ON (CRUISE position) / OFF
2. Activate cruise control at the current speed / 
decrease speed setting 3.
Activate cruise control at the current speed / 
increase speed setting
4. Pause / resume cruise control with the speed 
setting previously saved
5. Depending on version:
Display the speed thresholds saved using the 
Memorising speeds function
or
Use the speed suggested by the Speed Limit 
Recognition and Recommendation ( MEM 
display)
For more information on  Memorising speeds 
or the Speed Limit Recognition and 
Recommendation, refer to the corresponding 
sections.
Display on the instrument 
panel
 
  
 
Head-up display 
 
6. Cruise control mode selection indication
7. Cruise control pause/resume status indication
8. Programmed speed setting value
9. Speed suggested by the Speed Limit 
Recognition and Recommendation
Switching on/pausing
► Turn thumbwheel  1 to the "CRUISE" position 
to select cruise control mode; the function is 
paused.
► Press button  2 or 3 to activate cruise control 
and save a speed setting when the vehicle has 
reached the desired speed; the vehicle’s current 
speed is saved as the speed setting.
► Release the accelerator pedal.► Pressing button 4 temporarily pauses the 
function.  
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► Pressing button 4 again restores operation of 
the cruise control (ON).
Changing the cruise speed 
setting
The cruise control must be active.
To change the cruise speed setting, based on 
the vehicle’s current speed:
► In +/-   1   mph (1.6 km/h) steps, briefly press button 2 or 3 as often as necessary.► Continuously , in steps of +/-   5   mph (8 km/h), press and hold button 2 or 3.
Pressing and holding button 2 or 
3 results in a rapid change in the speed of your vehicle.
As a precaution, we recommend setting  a cruise speed similar to the vehicle’s 
current speed, to avoid any sudden 
acceleration or deceleration.
To modify the cruise speed setting using  memorised speed settings and from the touch 
screen:
► press button 5 to display the six memorised 
speed settings,
► press the button for the desired speed setting.
This setting becomes the new cruise speed.
To modify the cruise speed setting using the  speed suggested by the Speed Limit Recognition 
and Recommendation shown on the instrument 
panel:
► Press button  5 once; a message is displayed 
to confirm the memorisation request.
► Press button  5 again to save the suggested 
speed.
The speed is immediately shown on the 
instrument panel as the new speed setting.
Temporarily exceeding the 
speed setting
If needed (for overtaking, etc.) it is possible to 
exceed the programmed speed by pressing the 
accelerator pedal.
The cruise control is temporarily overridden and 
the programmed speed setting flashes.
To return to the speed setting, release the 
accelerator pedal.
Once the vehicle has returned to the 
programmed speed, the cruise control takes over 
again: the display of the programmed speed 
setting becomes steady again.
When descending a steep hill, the cruise 
control system cannot prevent the 
vehicle from exceeding the programmed 
speed.
You may have to brake to control the speed of 
your vehicle. In this case, the cruise control is 
automatically paused. To activate the system again, with the speed 
of the vehicle above 25 mph (40 km/h), press 
button 4.
Switching off
► Turn the thumbwheel
 1 to the "OFF" position: 
the cruise control information disappears from 
the screen.
Malfunction 
 
The display of dashes (flashing then fixed) 
indicates a malfunction with the cruise control 
system.
Have it checked by a CITROËN dealer or a 
qualified workshop.
Active Safety Brake with  Collision  Risk Alert and 
Intelligent emergency 
braking assistance
Refer to the General recommendations on the 
use of driving and manoeuvring aids .
 
 
This system:– warns the driver that their vehicle is at risk of collision with the vehicle in front or a pedestrian.– reduces the vehicle's speed to avoid a collision or limit its severity.
This system is comprised of three functions:
– Collision  Risk Alert.
– Intelligent emergency braking assistance.– Active Safety Brake (automatic emergency braking). 
 
The vehicle has a camera located at the top of 
the windscreen.
This system does not avoid the need for 
vigilance on the part of the driver.
This system is designed to assist the driver 
and improve road safety.
It is the driver's responsibility to continuously 
monitor the state of the traffic, observing the 
driving regulations.
As soon as the system detects a  potential obstacle, it prepares the braking 
circuit in case automatic braking is needed.