Page 113 of 258

2.21
TYRE PRESSURE LOSS WARNING (2/7)
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 addi-
tional driving aid.
However, the function does 
not take the place of the 
driver. It cannot, therefore, under 
any circumstances replace the vig-
ilance 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 120 of 258

2.28
Electronic stability program 
(ESC) with understeer control 
and traction control
Electronic stability control ESC
This system helps you to keep control 
of the vehicle in critical driving condi-
tions (avoiding an obstacle, loss of grip 
on a bend, etc.).
Operating principle
A sensor in the steering wheel detects 
the direction selected by the driver.
Other sensors throughout the vehicle 
measure the actual direction.
The system compares driver input to 
the actual trajectory of the vehicle and 
corrects the trajectory if necessary by 
controlling the braking of certain wheels 
and/or engine power. In the event that 
the system is engaged, indicator light 
 flashes on the instrument panel.
DRIVER CORRECTION DEVICES AND AIDS (2/4)
Understeer control
This system optimises the action of the 
ESC in the case of pronounced under-
steer (loss of front axle road holding).
Traction control
This system helps to limit wheelspin of 
the drive wheels and to control the ve-
hicle when pulling away accelerating or 
decelerating.
Operating principle
Using the wheel sensors, the system 
measures and compares the speed of 
the drive wheels at all times and slows 
down their over-rotation. If a wheel is 
starting to slip, the system brakes au-
tomatically until the drive supplied be-
comes compatible with the level of grip 
under the wheel again.
The system also adjusts the engine 
speed to the grip available under the 
wheels, independently of the pressure 
exerted on the accelerator pedal.Operating faults
When the system detects an operating 
fault the message “CHECK ESC” and 
warning light 
© and  appear 
on the instrument panel. In this case, 
the ESC and traction control system 
are deactivated.
Consult an approved dealer.
Disabling the traction control 
system
In some situations (driving on very wet 
ground: snow, mud, etc. or driving with 
snow chains fitted), the system may 
reduce the engine output to limit whee-
lspin. 
     
        
        Page 179 of 258
4.11
TYRE PRESSURE (2/2)
Special note concerning fully laden 
vehicles (Maximum Permissible All-Up 
Weight) and towing a trailer:  the maxi-
mum speed must be limited to  60 mph 
(100 kph) and the tyre pressure in-
creased by 0.2 bar.
Please refer to the information on 
“Weights” in Section 6. Tyre safety and use of snow chains:
 
Refer to the information on “Tyres” in 
Section 5 for the servicing conditions 
and, depending on the version, the use 
of chains.
For your safety, please re-
spect the speed limit.
When they need to be re-
placed, only tyres of the 
same make, size, type and profile 
should be used on a single axle.
They must: either have a load ca-
pacity and speed rating at least 
equal to those of the original 
tyres, or conform to those recom-
mended by an authorised dealer.
Failure to heed these instructions 
could endanger your safety and 
affect your vehicle’s roadworthi-
ness.
Risk of loss of control of the ve-
hicle. 
     
        
        Page 186 of 258

5.2
In case of puncture
Depending on the vehicle, a tyre infla-
tion kit or emergency spare wheel is 
provided (refer to the following pages).
Vehicle fitted with a tyre pressure 
loss warning system
If under-inflated (puncture, low pres-
sure, etc.), the warning light 
 
on the instrument panel comes on. 
See “Tyre pressure loss warning” in 
Section 2.
If the emergency spare wheel has been stored for several years, have it \
checked by your Dealer to ensure that it is safe to use.
Vehicle fitted with an emergency spare wheel that differs from the 
other wheels:
–  Never fit more than one emergency spare wheel to the same vehicle.
–  As the punctured wheel is wider than the emergency spare wheel, the vehi\
cle’s  ground clearance is reduced.
–  Replace the emergency spare wheel as soon as possible with a wheel ident\
i- cal to the original one.
–  When this is fitted to the vehicle, which must only be a temporary measu\
re, the  driving speed must not exceed the speed indicated on the label on the wh\
eel.
–  Fitting an emergency spare wheel may alter the way the vehicle usually r\
uns.  Avoid sudden acceleration or deceleration and reduce your speed when cor-\
nering.
–  If you need to use snow chains, fit the emergency spare wheel to the rea\
r axle  and check the tyre pressure.
PUNCTURE, EMERGENCY SPARE WHEEL (1/4) 
     
        
        Page 199 of 258

5.15
Emergency spare wheel
Refer to the information on the 
“Emergency spare wheel” and in-
structions on “Changing a wheel” in 
Section 5.
Changing wheels around
This practice is not recommended.
Fitting new tyres
TYRES (3/3)
Snow or Winter tyres
We would recommend that these be 
fitted to all four wheels to ensure that 
your vehicle retains maximum adhe-
sion.
Warning : These tyres sometimes have 
a specific direction of rotation and a 
maximum speed index which may be 
lower than the maximum speed of your 
vehicle.
Studded tyres
This type of equipment may only be 
used for a limited period and as laid 
down by local legislation. It is neces-
sary to observe the speed specified by 
current legislation.
These tyres must, at a minimum, be 
fitted to the two front wheels.
Chains may only be fitted 
to tyres of the same size 
as those originally fitted to 
your vehicle.
In all cases, we would recommend 
that you contact an approved dealer 
who will be able to advise you on 
the choice of equipment which is 
most suitable for your vehicle.
18” wheels cannot be 
fitted with chains.
If you wish to fit snow 
chains, you must use spe-
cial equipment .
Consult an approved Dealer.
Use in winter
Chains
For safety reasons, fitting snow 
chains to the rear axle is strictly for-
bidden.
Chains cannot be fitted  to tyres which 
are larger than those originally fitted to 
the vehicle.
For safety reasons, this op-
eration must be carried out 
by a specialist.
Fitting different tyres may 
change your vehicle as follows:
–  it may mean that your vehicle no  longer conforms to current regu-
lations;
–  it may change the way it handles  when cornering;
–  it may cause the steering to be  heavy;
–  it may affect the use of snow  chains.