2010.5 Citroen DS4 engine

125Visibility
Switching off the lighting when switching off the ignition
When the ignition is switched off, all of the lamps switch off immediately, except for the dipped beam headlamps if automatic guide-me-home lighting is activated.
Temporarily keeping the dipped beam headlamps on after the vehicle's ignition has been switched off makes the driver's exit easier when the light is poor.
Switching on
 With the ignition off, "flash" the headlamps using the lighting stalk.  A fur ther "headlamp flash" switches the function off.
Switching off
The manual guide-me-home lighting switches off automatically after a set time.
Manual guide-me-home
lighting
Daytime lighting, compulsory in cer tain countries, which comes on automatically when the engine is star ted making the vehicle more visible to other users.
This function is assured:
- in countries where it is imposed by regulations, by illumination of the dipped beam headlamps associated with illumination of the sidelamps and number plate lamps. - for other countries where it is provided, by illumination of dedicated lamps associated with illumination of the sidelamps and number plate lamps.
The instruments and controls (multifunction screen, air conditioning control panel, ...) are not illuminated, except in night mode with manual or automatic illumination of headlamps.
Daytime running lamps
This function can be activated or deactivated via the vehicle configuration menu.
Switching on the lighting when switching on the ignition
To reactivate the lighting control stalk, turn the ring A to position A"0" - lighting off, then to the position of your choice. If the lighting is switched on manually after
switching off the ignition, there is an audible signal when a front door is opened to warn the driver that they have forgotten to switch off the vehicle's lighting, with the ignition off. They switch off automatically after a period which depends on the state of charge of the battery (entry to energy economy mode).

125Visibility
Switching off the lighting when switching off the ignition
When the ignition is switched off, all of the lamps switch off immediately, except for the dipped beam headlamps if automatic guide-me-home lighting is activated.
Temporarily keeping the dipped beam headlamps on after the vehicle's ignition has been switched off makes the driver's exit easier when the light is poor.
Switching on
 With the ignition off, "flash" the headlamps using the lighting stalk.  A fur ther "headlamp flash" switches the function off.
Switching off
The manual guide-me-home lighting switches off automatically after a set time.
Manual guide-me-home
lighting
Daytime lighting, compulsory in cer tain countries, which comes on automatically when the engine is star ted making the vehicle more visible to other users.
This function is assured:
- in countries where it is imposed by regulations, by illumination of the dipped beam headlamps associated with illumination of the sidelamps and number plate lamps. - for other countries where it is provided, by illumination of dedicated lamps associated with illumination of the sidelamps and number plate lamps.
The instruments and controls (multifunction screen, air conditioning control panel, ...) are not illuminated, except in night mode with manual or automatic illumination of headlamps.
Daytime running lamps
This function can be activated or deactivated via the vehicle configuration menu.
Switching on the lighting when switching on the ignition
To reactivate the lighting control stalk, turn the ring A to position A"0" - lighting off, then to the position of your choice. If the lighting is switched on manually after
switching off the ignition, there is an audible signal when a front door is opened to warn the driver that they have forgotten to switch off the vehicle's lighting, with the ignition off. They switch off automatically after a period which depends on the state of charge of the battery (entry to energy economy mode).

Visibility
Windscreen and headlamp
wash
 Pull the windscreen wiper stalk towards you. The windscreen wash then the windscreen wipers operate for a fixed period. The headlamp washers only operate when the dipped beam headlamps are on .
Low screenwash/headlamp wash level
The low level of this fluid is indicated by gauge in the reser voir filler neck under the bonnet. Checking and topping up this fluid can only be done when stationary with the engine off.
On vehicles fitted with headlamp washers, the driver should check the level of this fluid regularly, par ticularly during winter.
Refer to "Checks - § Screenwash/headlamp
wash level" for the procedure on checking the level.

1. Front cour tesy lamp
2. Front map reading lamps3. Rear cour tesy lamp4. Rear map reading lamps
Courtesy lamps
In this position, the cour tesy lamp comes on gradually:
Front and rear courtesy lamps
- when the vehicle is unlocked, - when the key is removed from the ignition, - on opening a door, - when the remote control locking button is used to locate your vehicle.
It switches off gradually: - when the vehicle is locked, - when the ignition is switched on, - 30 seconds after the last door is closed.
Permanently off.
Permanent lighting.
In permanent lighting mode, the lighting time varies according to the circumstances: - with the ignition off, approximately ten minutes, - in energy economy mode, approximately thir ty seconds, - with the engine running, unlimited. When the cour tesy lamp is in the "permanent lighting" position, the rear cour tesy lamp also comes on, except if it is in the "permanently off " position. To switch off the rear cour tesy lamp, put it in the the "permanently off " position.
Front and rear map reading
lamps
 With the ignition on, press the corresponding switch.
Take care not to put anything in contact with the cour tesy lamps.

Interior welcome lighting The remote switching on of the passenger compar tment lighting makes your entry into the vehicle easier in poor light. It is activated depending on the light intensity detected by the sunshine sensor.
Switching on
The interior welcome lighting switches off automatically after a set time or when one of
the doors is opened.
This comes on automatically when the boot is opened and switches off automatically when the boot is closed.
Boot lamp
The lighting time varies according to the circumstances: - when the ignition is off, approximately ten minutes, - in energy economy mode, approximately thir ty seconds, - when the engine is running, no limit.
Programming
 Press the open padlock on the remote control.
The side spotlamps, the footwell lighting and
the cour tesy lamps come on; your vehicle is also unlocked. The lighting duration is selected via the vehicle configuration menu.
Switching off

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.

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.

Safety
Seat belt unfastened warning lamp
This warning lamp comes on in the instrument panel when one or more rear passengers unfasten their seat belt. From approximately 12 mph (20 km/h), this warning lamp flashes for two minutes accompanied by an audible signal of increasing volume. Once these two minutes have elapsed, this warning lamp remains on until the one or
more rear passengers fasten their seat belt.
Seat belt unfastened warning lamps display
3. Rear right seat belt warning lamp. 4. Rear centre seat belt warning lamp. 5. Rear left seat belt warning lamp. When the ignition is switched on, with the engine running or when the vehicle is moving at less than 12 mph (20 km/h), the corresponding warning
lamps 3 , 4 and 45 come on in red for approximately 30 seconds, if the seat belt is not fastened. When the vehicle is moving at more than 12 mph
(20 km/h), the corresponding warning lamps 3 , 4 and 5 come on in red, accompanied by an audible signal and a message in the screen, if a rear passenger has unfastened their seat belt.