Safety -> Trailer stability assist (TSA) for Your DS 7 Crossback 4 Door First Generation (2017-2022)

84  
Safety  
05  
These systems are activated automatically every  
time the vehicle is started.  
They come into operation in the event of a grip or  
trajectory problem.  
ASR / DSC  
stabilise the trailer and, if necessary, reduces  
engine power to slow down the vehicle.  
This warning lamp flashes in the  
instrument panel and the brake lamps light  
up to draw attention to this corrective action.  
For information on towed loads and masses, refer  
to the Technical data section or your vehicle’s  
registration certificate  
These systems enhance safety during  
normal driving, but should not encourage the  
driver to take extra risks or drive at high speed.  
It is in conditions of reduced grip (rain, snow,  
ice) that the risk of loss of grip increases. It  
is therefore important for your safety to keep  
these systems activated in all conditions, and  
particularly in difficult conditions.  
Correct operation of these systems depends  
on compliance with the manufacturer's  
recommendations relating to the wheels (tyres  
and rims), braking and electronic components,  
as well as the assembly and repair procedures  
used by dealers.  
This warning lamp on the instrument panel  
flashes to indicate that they are operating.  
Deactivation / Reactivation  
In exceptional conditions (starting a vehicle stuck  
in mud, immobilised in snow, on soft ground, etc.),  
it may be useful to deactivate the ASR system to  
freely spin the wheels and regain traction.  
Reactivate the system as soon as the level of grip  
permits.  
It is set via the Driving / Vehicle touch  
screen menu.  
Deactivation / reactivation is confirmed by the  
display of a message.  
To ensure complete safety while driving with a  
Towing device, refer to the corresponding section.  
Malfunction  
If a fault occurs, this warning lamp comes  
on in the instrument panel, accompanied  
by a message and an audible signal.  
If you wish to continue towing a trailer, reduce  
your speed and drive carefully!  
The use of snow tyres is recommended, to  
ensure that these systems remain effective  
in winter conditions. All four wheels must be  
fitted with tyres approved for the vehicle.  
Contact a dealer or a qualified workshop to have  
the system checked.  
The ASR system is reactivated automatically  
every time the ignition is switched back on or  
from 31 mph (50 km/h).  
The trailer stability assist system offers  
enhanced safety in normal driving,  
Trailer stability assist (TSA)  
When towing, this system reduces the risk of the  
vehicle or trailer snaking.  
Reactivation is manual below 31 mph (50 km/h).  
provided that the recommendations on towing  
a trailer are observed. It should not encourage  
the driver to take risks, such as towing a trailer  
in adverse operating conditions (overloading,  
failure to observe the trailer nose weight, worn  
or under-inflated tyres, faulty braking system,  
etc.), or to drive at excessive speeds.  
Malfunction  
In the event of a system malfunction, this  
warning lamp comes on, accompanied by  
an onscreen message and audible signal.  
Contact a dealer or a qualified workshop to have  
the systems checked.  
Operation  
The system is activated automatically when the  
ignition is switched on.  
The electronic stability control system (ESC) must  
not have any faults.  
Between 37 and 99 mph (60 and 160 km/h), if  
the system detects oscillations (snaking) in the  
movement of the trailer, it acts on the brakes to  
In certain cases, the system may not detect  
trailer snaking, particularly with a light trailer.  
85  
Safety  
05  
When driving on slippery or poor surfaces, the  
system may not be able to prevent sudden  
trailer snaking.  
Mud  
Activation/Deactivation  
This mode, when moving off, allows considerable  
spin on the wheel with the least grip to optimise  
clearing of the mud and to regain grip. At the  
same time, the wheel with the most grip is  
controlled in such a way as to transmit as much  
torque as possible.  
When moving, the system optimises wheel spin  
to respond to the driver's requirements as fully as  
possible.  
Intelligent traction control  
system ("Snow motion")  
Depending on version, your vehicle has a system  
to help driving on snow: intelligent traction  
control.  
This system detects situations of poor surface  
grip that could make it difficult to move off or  
make progress on deep fresh snow or compacted  
snow.  
In these situations, the intelligent traction control  
limits the amount of wheel spin to provide the  
best traction and trajectory control for your  
vehicle.  
(mode active up to 31 mph (50 km/h))  
Sand  
►ꢀ Press the DRIVE MODE button to choose one of  
the three driving modes; the different modes are  
displayed in the instrument panel.  
►ꢀ Depending on the circumstances, select  
"Snow", "Mud" or "Sand".  
The chosen mode continues to be displayed in the  
instrument panel.  
►ꢀ To deactivate, select "Normal" mode or any  
other driving mode.  
This mode allows little spin on the two driving  
wheels at the same time to allow the vehicle to  
move forward and limit the risks of getting stuck  
in the sand.  
(mode active up to 75 mph (120 km/h))  
Do not use the other modes on sand as  
the vehicle may become stuck.  
The use of snow tyres is strongly  
recommended on surfaces offering low  
levels of grip.  
The system is automatically deactivated when  
the ignition is switched off.  
Recommendations  
The vehicle is designed principally to  
drive on tarmac roads, but it allows you to  
occasionally drive on other less passable  
terrain.  
However, it does not permit off-road driving  
such as:  
– driving on terrain which could damage the  
underbody or strip away components (fuel  
pipe, fuel cooler, etc.) due to obstacles or  
stones in particular,  
Advanced Traction Control  
This special patented traction control system  
improves grip on snow, mud and sand.  
Operating modes  
Snow  
This mode adapts its strategy to the conditions of  
grip encountered for each of the two front wheels  
on moving off.  
For optimum grip on snow, it is  
recommended to fit the vehicle with  
winter tyres.  
(mode active up to 50 mph (80 km/h))