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T y r e u n d e r - i n fl a t i o n d e t e c t i o n
System which automatically and continuously checks the pressure of the tyres while driving. Sensors fitted in each valve trigger a warning in the event of problem (speed above 12 mph (20 km/h)).
Puncture
The tyre under-inflation detection system is an aid to driving which does not replace the need for the driver to be vigilant or to drive responsibly.
U n d e r - i n fl a t e d t y r e
This warning lamp is displayed on the instrument panel and/or a message appears in the screen, accompanied
by an audible signal, to identify the wheel concerned.
The STOP warning lamp comes on and/or this warning lamp is displayed on the instrument panel, accompanied by
an audible signal and a message in the screen identifying the wheel concerned.
Stop as soon as it is safe to do so, avoiding any sudden movement of the steering wheel and the brakes. Repair or change the damaged wheel (punctured or very deflated tyre), and have the tyre pressure checked as soon as possible.
Check the tyre pressures as soon as possible. This check must be carried out when the tyres are cold.
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175Safety
Emergency braking assistance
System which, in an emergency, enables you to obtain the optimum braking pressure more quickly, thus reducing the stopping distance.
Activation
It is triggered by the speed at which the brake pedal is pressed. The effect of this is a reduction in the resistance of the pedal and an increase in braking efficiency.
When braking in an emergency, press firmly without releasing the pressure.
Trajectory control systems
Anti-skid regulation (ASR)
and electronic stability
programme (ESP)
The anti-skid regulation (also known as Traction Control) optimises traction to prevent skidding of the wheels, by acting on the brakes of the driving wheels and on the engine. The electronic stability programme acts on the brake of one or more wheels and on the engine to keep the vehicle on the trajectory required by the driver, within the limits of the laws of physics.
Activation
These systems are activated automatically each time the vehicle is star ted. They come into operation in the event of a grip or trajectory problem.
This is indicated by flashing of this warning lamp in the instrument panel.
Snow driving assistance
(Intelligent Traction Control)
Your vehicle has a system to help driving on snow: Intelligent Traction Control. This automatic system continuously checks for situations of difficult sur face adhesion that could make it difficult to move off or make progress on deep fresh snow or compacted snow. In these situations, Intelligent Traction Control takes over from the ASR system, limiting the amount of wheel slip to provide the best traction and trajectory control, even
without snow tyres and with or without chains. In extremely severe conditions (snow on top of ice, sand, deep mud…), it can be useful to
deactivate the ESP/ASR systems to allow a degree of wheel spin and so recover grip.
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175Safety
Emergency braking assistance
System which, in an emergency, enables you to obtain the optimum braking pressure more quickly, thus reducing the stopping distance.
Activation
It is triggered by the speed at which the brake pedal is pressed. The effect of this is a reduction in the resistance of the pedal and an increase in braking efficiency.
When braking in an emergency, press firmly without releasing the pressure.
Trajectory control systems
Anti-skid regulation (ASR)
and electronic stability
programme (ESP)
The anti-skid regulation (also known as Traction Control) optimises traction to prevent skidding of the wheels, by acting on the brakes of the driving wheels and on the engine. The electronic stability programme acts on the brake of one or more wheels and on the engine to keep the vehicle on the trajectory required by the driver, within the limits of the laws of physics.
Activation
These systems are activated automatically each time the vehicle is star ted. They come into operation in the event of a grip or trajectory problem.
This is indicated by flashing of this warning lamp in the instrument panel.
Snow driving assistance
(Intelligent Traction Control)
Your vehicle has a system to help driving on snow: Intelligent Traction Control. This automatic system continuously checks for situations of difficult sur face adhesion that could make it difficult to move off or make progress on deep fresh snow or compacted snow. In these situations, Intelligent Traction Control takes over from the ASR system, limiting the amount of wheel slip to provide the best traction and trajectory control, even
without snow tyres and with or without chains. In extremely severe conditions (snow on top of ice, sand, deep mud…), it can be useful to
deactivate the ESP/ASR systems to allow a degree of wheel spin and so recover grip.
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Electric parking brake
This system does not require any routine ser vicing. However, in the event of a problem, have the system checked by a CITROËN dealer or a qualified workshop. For more information, see "Driving - Electric parking brake - § Operating faults".
Only use products recommended by CITROËN or products of equivalent quality and specification. In order to optimise the operation of units as impor tant as the braking system, CITROËN selects and offers very specific products. To avoid damaging the electrical units, the use of a high pressure washer in the engine compar tment is strictly prohibited . Brake disc wear
For information on checking brake disc wear, contact a CITROËN dealer or a qualified workshop.
Manual parking brake
If a loss of effectiveness of this system is noticed, the parking brake must be checked, even between two ser vices. Checking this system must be done by a CITROËN dealer or a qualified workshop.
Brake pads
Brake wear depends on the style of driving, par ticularly in the case of vehicles used in town, over shor t distances. It may be necessary to have the condition of the brakes checked, even between vehicle ser vices. Unless there is a leak in the system, a drop in the brake fluid level indicates that the brake pads are worn.