Page 109 of 260
2.17
TYRE PRESSURE LOSS WARNING (1/9)
If fitted on the vehicle, this system
warns the driver of pressure loss in one
or several tyres.
A
A
System identification
There are two tyre pressure loss warn-
ing systems:
– System A : can be seen on the
label A in the vehicle. To verify its
presence, open the driver’s door.
– System B : can be seen on the
label A in the vehicle.
Page 110 of 260

2.18
TYRE PRESSURE LOSS WARNING (2/9)
Operating conditions
The system should be reset with an
inflation pressure equal to that given
on the tyre inflation pressure label.
Otherwise it risks not giving a reliable
warning in the event of a significant loss
of pressure. Please refer to the informa-
tion on “Tyre pressures” in Section 4.
In the following situations, the system
risk coming into action late or not func-
tioning correctly:
– system not reset after reinflation or any operation on the wheels;
– system badly reset: different inflation pressures from the recommended
pressures;
– significant change in load or distribu- tion of load on one side of the vehi-
cle;
– sporty driving with strong accelera- tion;
– driving on snowy or slippery surface;
This function is an additio-
nal driving aid.
However, the function does
not take the place of the
driver. It cannot, therefore, under
any circumstances replace the vi-
gilance or the responsibility of the
driver.
Check the tyre pressures, including
the emergency spare wheel, once a
month.
1
– driving with snow chains;
– fitting a single new tyre;
– use of tyres not approved by the net- work.
– ...
SYSTEM A
Operating principle
This system detects a loss of pressure
in one of the tyres by measuring the
wheel speed while driving.
Warning light
1 comes on to
alert the driver in the event of insuffi-
cient pressure (deflated wheel, punc-
tured tyre, etc.).
Page 111 of 260

2.19
SYSTEM A (cntd.)
Resetting the standard level for the
tyre pressures
This should be done:
– after each reinflation or readjustment of the pressure of one of the tyres;
– when the standard tyre pressure needs to be changed to adapt to
usage conditions (empty, carrying a
load, motorway driving, etc.);
– after changing a wheel;
– after using the tyre inflation kit;
– after swapping a wheel (however, this practice is not recommended).
It should always be done after checking
the tyre pressure of all four tyres when
cold.
Tyre pressures must correspond to the
current usage of the vehicle (empty,
carrying a load, motorway driving, etc.).
2
3
4
Resetting procedure
With the ignition on, depending on the vehicle:
– repeatedly press one of the but- tons 3 or 4 to select the “TIRES:SET
TPW” function on the display 2;
– press and hold (around 3 seconds) button 3 or 4 to start initialisation.
The display of the message “SET
TPW LAUNCHED” for around five
seconds indicates that the reset
request for the tyre pressure refe-
rence value has been taken into ac-
count. Or
– repeatedly press the button 3
to
select the “SEt tP” function on the
display 2;
– press and hold (around 3 seconds) the button 3 to start initialisation. The
flashing, lasting around five seconds,
followed by a constant display of the
message “SEt tP” indicates that the
reset request for the tyre pressure
reference value has been taken into
account.
Reinitialisation is carried out after a few
minutes’ driving.
TYRE PRESSURE LOSS WARNING (3/9)
Page 112 of 260

2.20
TYRE PRESSURE LOSS WARNING (4/9)
SYSTEM A (cntd.)
Display
The display 2 on the instrument panel
informs you of any tyre pressure faults
(flat tyre, punctured tyre, etc.).
INFLATE TIRES AND SET TPW
The warning light
stays on and,
depending on the vehicle, along with
the message “INFLATE TIRES AND
SET TPW”.
They indicate that at least one tyre is
flat or punctured.
In the event of a flat tyre, inflate the re-
levant tyre.
In the event of a puncture, change the
tyre or consult an authorised dealer.
Check and readjust the pressure of the
four tyres when cold, and launch the
reinitialisation of the tyre pressure refe-
rence value.
Warning light
goes out after
launching the reinitialisation of the tyre
pressure reference value.
The sudden loss of pressure in a
tyre (burst tyre, etc.) cannot be de-
tected by the system.
RECALIBRATE SET TPW
The warning light
flashes for se-
veral seconds, then stays on and, de-
pending on the vehicle, together with
the message “RECALIBRATE SET
TPW”.
They indicate that the request to reset
the reference value of the tyre pres-
sures must be restarted.
TPW UNAVAILABLE
The warning light
flashes for se-
veral seconds, then stays on and, de-
pending on the vehicle, together with
the message “TPW UNAVAILABLE”.
They indicate that the vehicle is equip-
ped with an emergency spare wheel
which is smaller than the other four and
that it is fitted to the vehicle. CHECK TPW
The warning light
flashes for se-
veral seconds, then stays on and, de-
pending on the vehicle, together with
the message “CHECK TPW”.
This message is accompanied by the
warning light
©.
They indicate a system fault. Please
consult an authorised dealer.
Page 113 of 260

2.21
Replacing wheels/tyres
Only use equipment approved by the
brand network, or the system risks
being activated late or not operating
correctly. Please see the information on
“Tyres” in Section 5.
After each change of wheel/tyre, read-
just the tyre pressure and launch the
reinitialisation of the tyre pressure ref-
erence value.
Emergency spare wheel
If fitted on the vehicle, readjust the tyre
pressure and launch the reinitialisation
of the tyre pressure reference value.SYSTEM A (cntd.)
Readjustment of tyre pressures
The tyre pressures must be adjusted
when cold (please refer to the label lo-
cated on the edge of the driver’s door).
If tyre pressures cannot be checked
when the tyres are cold, the recom-
mended pressures should be increased
by 0.2 to 0.3 bar (3 PSI).
Never deflate a hot tyre.
After each reinflation or readjustment of
the tyre pressure, launch the reinitiali-
sation of the tyre pressure reference
value.
TYRE PRESSURE LOSS WARNING (5/9)
Tyre repair product and inflation kit
Only use equipment approved by the
brand network, or the system risks
being activated late or not operating
correctly. Please refer to “Tyre inflation
kit” in Section 5.
After using the tyre inflation kit, readjust
the tyre pressure and launch the reini-
tialisation of the tyre pressure reference
value.
Page 114 of 260

2.22
TYRE PRESSURE LOSS WARNING (6/9)
SYSTEM B
Operating principle
Each wheel (except for the emergency
spare wheel) has a sensor in the infla-
tion valve which periodically measures
the tyre pressure while driving.
Warning light
1 comes on to
alert the driver in the event of insuffi-
cient pressure (deflated wheel, punctu-
red tyre, etc.).
Resetting the standard level for the
tyre pressures
This should be done:
– when the standard tyre pressure needs to be changed to adapt to
usage conditions (empty, carrying a
load, motorway driving, etc.);
– after swapping a wheel (however this practice is not recommended);
– after changing a wheel.
It should always be done after checking
the tyre pressure of all four tyres when
cold.
Tyre pressures must correspond to the
current usage of the vehicle (empty,
carrying a load, motorway driving, etc.).
This function is an additio-
nal driving aid.
However, the function does
not take the place of the
driver. It cannot, therefore, under
any circumstances replace the vi-
gilance or the responsibility of the
driver.
Check the tyre pressures, including
the emergency spare wheel, once a
month.
1
Page 115 of 260

2.23
TYRE PRESSURE LOSS WARNING (7/9)
2
3
4
The display of the message “TP ACQUISTION LAUNCHED” for
around five seconds indicates that
the reset request for the tyre pres-
sure reference value has been taken
into account.
Or
– repeatedly press the button 3 to
select the “SEt PP” function on the
display 2;
– press and hold (around 3 seconds) the button 3 to start initialisation. The
flashing, lasting around five seconds,
followed by a constant display of the
message “SEt PP” indicates that the
reset request for the tyre pressure
reference value has been taken into
account.
Reinitialisation is carried out after a few
minutes’ driving.
Note:
The standard tyre pressure cannot be
less than that recommended and indi-
cated on the door frame.
SYSTEM B (cntd.)
Resetting procedure
With the ignition on, depending on the vehicle:
– repeatedly press one of the buttons 3
or 4 to select the “TYRE PRESSURE
ACQUISITION” function on the dis-
play 2;
– press and hold (around 3 seconds) button 3 or 4 to start initialisation.
Page 116 of 260

2.24
TYRE PRESSURE LOSS WARNING (8/9)
TYRE PUNCTURE
The warning light
stays on to-
gether with a beep and, depending
on the vehicle, the message “TYRE
PUNCTURE”.
This message is accompanied by the
warning light
®.
They indicate that at least one wheel
is punctured or severely underinfla-
ted. Replace it or contact an authorised
dealer if it is punctured. Top up the tyre
pressure if the wheel is deflated.
Warning light ® re-
quires you to stop immedi-
ately, for your own safety,
as soon as traffic conditions
allow.
The sudden loss of pressure in a
tyre (burst tyre, etc.) cannot be de-
tected by the system.
CHECK TYRE SENSORS
The warning light
flashes for
several seconds, then stays on and,
depending on the vehicle, together
with the message “CHECK TYRE
SENSORS”.
This message is accompanied by the
warning light
©.
They indicate that at least one tyre is
not fitted with sensors (e.g. emergency
spare wheel). In other cases, contact
an authorised dealer.
SYSTEM B (cntd.)
Display
The display 2 on the instrument panel
informs you of any tyre pressure faults
(flat tyre, punctured tyre, etc.).
CHECK TYRE PRESSURES
The warning light
stays on
and, depending on the vehicle, along
with the message “CHECK TYRE
PRESSURES”.
These indicate that at least one tyre is
flat.
Check and, if necessary, readjust the
pressures of the four wheels when cold.
The warning light
goes off after a
few minutes’ driving.