2017-2026 DS 7 4 Door Driving -> Under-inflation detection User Manual
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Driving -> Under-inflation detection for Your DS 7 4 Door First Generation (2017-2026)

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Driving  
06  
All work must be carried out only by a dealer or  
The inflation pressures defined for the  
vehicle can be found on the tyre pressure  
►ꢀ Using a compressor, such as the one in  
the temporary puncture repair kit, check the  
pressures of all four tyres when cold.  
a qualified workshop.  
label.  
For more information on the Identification  
markings, refer to the corresponding section.  
►ꢀ If it is not possible to carry out this check  
immediately, drive carefully at reduced speed.  
►ꢀ In the event of a puncture, use the temporary  
puncture repair kit or the spare wheel (depending  
on equipment).  
Under-inflation detection  
This system alerts the driver when one or more  
Checking tyre pressures  
tyres have a drop in pressure.  
This check should be done monthly when  
the tyres are "cold" (vehicle stopped for 1 hour  
or after a journey of less than 6 miles (10 km)  
at moderate speeds).  
The alert is raised when the vehicle is moving, not  
when stationary.  
Driving too slowly may not ensure  
optimum monitoring.  
It compares the information given by the wheel  
speed sensors with reference values, which must  
be reinitialised every time the tyre pressures are  
adjusted or a wheel changed.  
The alert is not immediately triggered in the  
event of a sudden loss of pressure or tyre blow-  
out. This is because analysis of the values read  
by the wheel's speed sensors can take several  
minutes.  
Otherwise, add 0.3 bar to the pressures shown  
on the label.  
It takes the last values stored during  
the reinitialisation request into account. It is  
therefore essential that the tyre pressure is  
correct during the operation. This operation is the  
driver’s responsibility.  
Snow chains  
The system does not have to be  
reinitialised after fitting or removing snow  
chains.  
The alert may be delayed at speeds below 25  
mph (40 km/h), or when adopting a sporty  
driving mode.  
The tyre under-inflation detection cannot,  
in any circumstances, replace the need  
for vigilance on the part of the driver.  
This system does not avoid the need to  
regularly check the tyre pressures (including  
the spare wheel), especially before a long  
journey.  
The alert is kept active until the system is  
reinitialised.  
Under-inflation alert  
This is signalled by the fixed illumination  
of this warning lamp, accompanied by an  
audible signal and, depending on equipment, the  
display of a message.  
Reinitialisation  
►ꢀ The system must be reinitialised after any  
adjustment to the pressure of one or more tyres,  
and after changing one or more wheels.  
►ꢀ Reduce speed immediately, avoid excessive  
steering movements and avoid sudden braking.  
►ꢀ Stop the vehicle as soon as it is safe to do so.  
Driving with under-inflated tyres, particularly  
in adverse conditions (heavy load, high speed,  
long journey):  
Before reinitialising the system, make  
sure that the pressures of the four tyres  
are correct for the conditions of use of the  
The loss of pressure detected may not  
always cause visible deformation of the  
tyre.  
– worsens road-holding.  
– lengthens braking distances.  
– causes premature wear of the tyres.  
– increases energy consumption.  
Do not rely on just a visual check.  
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Driving  
06  
vehicle and conform to the values written on  
the tyre pressure label.  
as the others), the pressure readjusted and  
the reinitialisation carried out.  
Manoeuvring aids  
The driver must always check the  
Check the pressures of the four tyres before  
performing the reinitialisation.  
surroundings of the vehicle before and during  
the whole manoeuvre, in particular using the  
mirrors.  
The system does not advise if a pressure is  
incorrect at the time of reinitialisation.  
Driving and manoeuvring  
aids - General  
recommendations  
Radar(s)  
With the vehicle stationary, the system is  
reinitialised via the Driving/Vehicle touch  
screen menu.  
The operation of the radar(s), along with  
any associated functions, may be affected by  
the accumulation of dirt (e.g. mud, ice), in poor  
weather conditions (e.g. heavy rain, snow), or  
if the bumpers are damaged.  
Driving and manoeuvring aids cannot, in  
any circumstances, replace the need for  
vigilance on the part of the driver.  
►ꢀ In this menu, select the “Vehicle settings” tab.  
►ꢀ On this page, select the "Under-inflation  
initialisation" function.  
The driver must comply with the Highway  
Code, must remain in control of the vehicle in  
all circumstances and must be able to retake  
control of it at all times. The driver must adapt  
the speed to climatic conditions, traffic and  
the state of the road.  
If the front bumper is to be repainted, contact  
a dealer or a qualified workshop; certain types  
of paint could interfere with the operation of  
the radar(s).  
►ꢀ Select "Yes" to confirm.  
The reinitialisation is confirmed by the display of  
a message and an audible signal.  
Malfunction  
In the event of a malfunction, these  
warning lamps light up on the  
instrument panel.  
It is the driver's responsibility to constantly  
monitor traffic conditions, assess the distance  
and relative speed of other vehicles, and  
anticipate their manoeuvres before using the  
direction indicator and changing lanes.  
These systems do not make it possible to  
exceed the laws of physics.  
A message appears, accompanied by an audible  
signal.  
In this case, the tyre under-inflation monitoring  
function is no longer performed.  
Have it checked by a dealer or a qualified  
workshop.  
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.  
Driving aids  
"Space-saver" type spare wheel  
You should hold the steering wheel with  
both hands, always use the door and interior  
mirrors, always leave your feet close to the  
pedals and take a break every 2 hours.  
The use of this type of spare wheel may  
suspend tyre pressure monitoring.  
In humid and cold weather, demist the  
windscreen regularly.  
In this case, the malfunction warning lamp  
comes on and disappears once the wheel has  
been replaced by one of uniform size (the same  
Poor visibility (inadequate street lighting,  
heavy rain, thick fog, snowfall), dazzle  

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