2020-2024 DS 9 4 Door Driving -> Lane positioning assist User Manual
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Driving -> Lane positioning assist for Your DS 9 4 Door First Generation (2020-2024)

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Driving  
06  
– Vehicles driving in the opposite direction.  
Situations where the driver must suspend the  
system:  
Some vehicles on the road may be poorly  
perceived or interpreted by the camera  
and/or the radar (e.g. truck), which can lead to  
an incorrect evaluation of distances and result  
in inappropriate acceleration or braking of the  
vehicle.  
Malfunction  
In the event of a malfunction,  
dashes are displayed instead of  
the speed setting.  
This warning lamp comes on, accompanied  
by a message and an audible signal, to  
Pay particular attention:  
confirm the malfunction.  
– When motorcycles are present and  
when there are vehicles staggered across the  
traffic lane.  
Have it checked by a dealer or a qualified  
workshop.  
– Vehicles in a tight bend.  
– When entering a tunnel or crossing a bridge.  
– When approaching a roundabout.  
Lane positioning assist  
If any of the following malfunctions  
occurs, do not use the system:  
For more information, refer to the General  
recommendations on the use of driving  
and manoeuvring aids.  
– Following an impact on the windscreen close  
to the camera or on the front bumper (versions  
with radar).  
– Brake lamps not working.  
– When following a narrow vehicle.  
Reactivate the system when conditions allow.  
Situations in which the driver is prompted to  
immediately resume control:  
If the vehicle has undergone any of the  
following modifications, do not use the  
system:  
– Excessively sharp deceleration by the vehicle in  
front of you.  
– Carrying long objects on roof bars.  
– Towing.  
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.  
– Front end of the vehicle modified (for  
example by adding long-range headlamps or  
painting the front bumper).  
– Obstructed radar.  
This function is primarily suitable for driving on  
motorways and main roads.  
– When a vehicle cuts in sharply between your  
vehicle and the one in front.  
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Driving  
06  
All operating conditions are met; the system is  
active.  
Operating conditions  
– Adaptive cruise control active.  
Pausing/Suspending the  
system  
(orange colour)  
– ESC system operational.  
System malfunction.  
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.  
– ASR system activated.  
If the driver no longer wishes to use the system  
for a while, they can deactivate it by pressing the  
button again.  
– No trailer detected.  
– No 'space-saver' spare wheel in use.  
– Vehicle not subject to strong lateral g-forces.  
– Direction indicators not activated.  
The indicator lamp in the button goes off and the  
symbol disappears from the instrument panel.  
Activation/Deactivation  
The system status is saved when the  
ignition is switched off.  
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.  
Cruise control  
The driver must hold the steering wheel properly.  
When cruise control is activated, the symbol is  
displayed in green: by small steering actions, the  
system directs the vehicle and keeps it in the  
position chosen by the driver, in the traffic lane.  
This position is not necessarily the centre of the  
lane.  
If the function is suspended due to the  
prolonged release of the force holding the  
steering wheel, the function must be  
►ꢀ With the Adaptive cruise control with Stop &  
Go function activated, press this button.  
The action is confirmed by:  
The driver can feel movements in the steering  
wheel.  
reactivated by pressing the button again.  
– The indicator lamp in the button lighting up  
green.  
The driver can change the position of the vehicle  
at any time, by turning the steering wheel, which  
suspends the function. The driver positions the  
vehicle where they wish to in the lane. When  
the driver feels that the vehicle’s position is  
appropriate, they maintain it until the function  
is reactivated. The system regains control by  
regulating on the new defined position.  
Automatic pause  
– The following symbol being displayed on the  
instrument panel.  
– Triggering of the ESC.  
– Prolonged failure to detect one of the lane limit  
markings. 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.  
The colour of the symbol on the instrument panel  
depends on the operating status of the system:  
(grey colour)  
One or more operating conditions is not  
met; the system is paused.  
(green colour)  
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Driving  
06  
In response to action by the driver: suspension  
– Too tight a grip on the steering wheel or  
dynamic action on the steering wheel.  
pedal (suspension for as long as the pedal is  
depressed).  
– Activation of the direction indicators.  
– Travelling outside the lane limits.  
– Action on the brake pedal (resulting in a pause  
until cruise control is reactivated) or accelerator  
– 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.  
Button indicator lamp  
Cruise control  
thumbwheel  
Symbols  
Display  
Comments  
Off  
CRUISE  
CRUISE  
CRUISE  
CRUISE  
Cruise paused.  
Lane positioning assist not activated.  
(grey)  
(grey)  
(grey)  
(green)  
(grey)  
Off  
Active cruise control.  
Lane positioning assist not activated.  
(green)  
(green)  
Green  
Green  
DS DRIVE ASSIST activated.  
The system is operating normally  
(correction is made at the steering wheel).  
DS DRIVE ASSIST paused.  
70  
(grey)  
120  
Driving  
06  
Button indicator lamp  
Cruise control  
thumbwheel  
Symbols  
Display  
Comments  
Green  
Green  
Green  
CRUISE  
OFF or LIMIT  
CRUISE  
DS DRIVE ASSIST activated.  
All the operating conditions for lane  
positioning assist have not been met.  
(green)/(grey)  
(grey)  
(grey)  
(grey)  
(grey)  
Cruise control deactivated.  
All the operating conditions for lane  
positioning assist have not been met.  
DS DRIVE ASSIST suspended.  
Cruise control and lane positioning assist  
are suspended.  
(green)/(grey)  
Messages  
Driving situations  
"Activate cruise control to use lane positioning assist"  
"Conditions unsuitable - Awaiting activation"  
"Keep your hands on the steering wheel"  
Activation of lane positioning assist while cruise control is not active.  
Activation of lane positioning assist while not all conditions are met.  
Prolonged driving without holding the steering wheel, holding it improperly or  
without applying any force.  
"Hold the steering wheel"  
"Take back control"  
Actual or imminent loss of lane positioning assist.  
Simultaneous loss of cruise control and lane positioning assist.  
driver thinks they are holding the steering  
wheel correctly.  
– Poor visibility (insufficient road lighting,  
snowfall, rain, fog).  
Operating limits  
– Dazzle (headlamps of an oncoming vehicle, low  
sun, reflections on a wet road surface, leaving a  
tunnel, alternating light and shade).  
The system may issue an alert when the  
vehicle is travelling on a long, straight  
road with smooth road surface even if the  
The system may not operate or may produce  
unsuitable corrections to the steering in the  
following situations:  
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Driving  
06  
– Windscreen area in front of the camera dirty,  
misted up, frost-covered, snow-covered, damaged  
or covered by a sticker.  
Have it checked by a dealer or a qualified  
workshop.  
The system helps the driver only if there is  
a risk of the vehicle unintentionally  
wandering from the lane it is being driven in. It  
does not manage the safe driving distance,  
vehicle speed or braking.  
– Lane markings eroded, partially hidden (snow,  
mud) or multiple (roadworks, surface joints).  
– Travelling in a tight bend.  
Active lane departure  
warning system  
The driver must hold the steering wheel with  
both hands in a way that allows control to  
be maintained in circumstances where the  
system is not able to intervene (for example, if  
the central dividing line disappears).  
– Winding roads.  
For more information, refer to the General  
recommendations on the use of driving  
and manoeuvring aids.  
– Presence of a tarmac joint on the road.  
Risk of undesirable operation  
The system should be deactivated in the  
following situations:  
The system corrects the vehicle's trajectory by  
alerting the driver as soon as it detects a risk of  
involuntary lane departure.  
Operation  
– Driving with a "space-saver" type spare  
wheel.  
As soon as the system identifies a risk of  
involuntarily crossing one of the lane markings  
detected on the ground or a lane boundary  
(e.g. grass verge), it performs the trajectory  
correction necessary to restore the vehicle to its  
original lane.  
To do this, the system uses a camera, placed on  
the upper part of the windscreen, identifying the  
lane markings on the ground.  
– When towing or with a bicycle carrier  
attached to a towing device, particularly when  
a trailer is not connected or the trailer is not an  
approved type.  
This system is particularly useful on motorways  
and main roads.  
– Adverse weather conditions.  
– Driving on slippery road surfaces (risk of  
aquaplaning, snow, ice).  
The driver will notice a turning movement of the  
steering wheel.  
This warning lamp flashes during  
trajectory correction.  
– In roadworks or toll booth areas.  
– Driving on racing circuits.  
– Driving on a rolling road.  
The driver can prevent the correction by  
firmly holding the steering wheel  
Operating conditions  
– Vehicle speed between 43 and 112 mph (70 and  
(e.g. during an emergency manoeuvre).  
The correction is interrupted immediately if  
the direction indicators are operated.  
Malfunction  
180 km/h).  
In the event of a malfunction, the  
– Road marked with a central dividing line.  
– Steering wheel held in both hands.  
– Direction indicators not activated.  
– ESC system activated and operational.  
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.  
While the direction indicators are activated and  
for a few seconds after switching them off, the  
system considers that a change of trajectory is  

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