Driving -> Speed Limit Recognition and Recommendation for Your DS 7 Crossback 4 Door First Generation (2017-2022)

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alternating shade and light) can also impair  
detection performance.  
always detected by the system: distance  
measurements may be distorted.  
units of speed so that it complies with what is  
authorised locally.  
In the event of a windscreen replacement,  
contact a dealer or a qualified workshop  
to recalibrate the camera; otherwise, the  
operation of the associated driving aids may  
be disrupted.  
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.  
In case of doubt, contact a dealer or a qualified  
workshop.  
Speed Limit Recognition  
and Recommendation  
Refer to the General recommendations on the use  
of driving and manoeuvring aids.  
Certain materials (fabrics) absorb sound  
waves: pedestrians may not be detected.  
Other cameras  
The images from the camera(s) displayed  
on the touch screen or on the instrument panel  
may be distorted by the relief.  
Maintenance  
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.  
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 radar, sensors and cameras.  
Mats  
Sensors  
The use of mats not approved by the  
Manufacturer 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.  
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.  
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.  
Units of speed  
Navigation mapping should be regularly  
updated in order to receive accurate  
speed limit information from the system.  
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  
A front or rear impact to the vehicle can  
upset the sensors’ settings, which is not  
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The units for the speed limit (mph or  
km/h) depend on the country you are  
driving in.  
Information displayed on the  
instrument panel  
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.  
In the case of suggested maximum speeds, the  
first time the vehicle exceeds the suggested  
speed by more than 3 mph (5 km/h) (e.g. 59 mph  
(95 km/h)), the speed is displayed flashing for 10  
seconds.  
Operating limits  
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 does not take account of reduced  
speed limits, especially those imposed in the  
following cases:  
– Poor weather (rain, snow).  
– Atmospheric pollution.  
1. Detected speed limit indication  
or  
– Towing.  
The system is designed to detect signs that  
conform to the Vienna Convention on road  
signs.  
2. End of speed limit indication  
– Driving with a space-saver type spare wheel or  
snow chains fitted.  
– Tyre repaired using the temporary puncture  
repair kit.  
– Young drivers.  
The system may 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, non-standard,  
damaged or bent.  
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).  
The system is active but is not detecting speed  
limit information.  
Activation/Deactivation  
– Obsolete or incorrect maps.  
By default, the system is automatically activated  
at every engine start.  
On detecting speed limit information, the system  
displays the value.  
The function is activated and deactivated  
in the Driving/Vehicle menu of the touch  
screen.  
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Information displayed on the instrument  
panel  
►ꢀ 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.  
Recommendation  
The display then reverts to its previous state.  
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.  
Extended Traffic Sign  
Recognition  
Refer to the General recommendations on the use  
of driving and manoeuvring aids.  
3. Speed limit indication  
4. Speed memorisation prompt  
5. Current speed setting  
Memorising the speed  
For more information on the Speed limiter,  
Cruise control or Adaptive cruise control,  
refer to the corresponding sections.  
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.  
With the matrix instrument panel, the display  
mode selected must be "Road sign recognition".  
With the digital instrument panel , the display  
mode selected must be "Driving".  
Steering mounted controls  
►ꢀ 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 "MEM"  
flashes for a few seconds, prompting you to save  
it as the new speed setting.  
1. Speed limiter/cruise control mode selection  
2. Memorise the 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.