DRIVING CORRECTION DEVICES AND AIDS
Depending on the vehicle, this is composed of:
- anti-lock braking system (ABS);
- electronic stability program (ESC) with understeer control and traction control;
- driver assistance with a trailer;
- emergency brake assist;
- grip control;
- hill start assistance.
Anti-lock braking system (ABS)
Under heavy braking, the ABS prevents the wheels from locking, allowing the stopping distance to be managed and keeping control of the vehicle.
Under these circumstances, the vehicle can be steered to avoid an obstacle whilst braking. In addition, this system can increase stopping distances, particularly on roads with low surface grip (wet ground etc.).
You will feel a pulsation through the brake pedal each time the system is activated. The ABS does not in any way improve the vehicle's physical performance relating to the road surface and road-holding. It is still essential to follow the rules of good driving practice (such as driving at a safe distance from the vehicle in front etc.).
- The © and x come on and the messages “Check ABS”, “CHECK BRAKING SYSTEM” and, depending on the vehicle, “Check ESC” appear on the instrument panel: the ABS, the ESC and emergency brake assist are deactivated. Braking is always enabled;
- The x, D, © and ® come on and the message “BRAKING SYSTEM FAULT” is displayed on the instrument panel: this indicates a failure in the braking system.
In both cases, please consult an Authorised Dealer.
In an emergency, apply firm and continuous pressure to the brake pedal. There is no need to pump it repeatedly. The ABS will modulate the force applied in the braking system.
Your braking systems are partially operational. However, it is dangerous to brake suddenly and it is essential to stop immediately, as soon as traffic conditions allow. Contact an approved dealer.
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 conditions (avoiding an obstacle, loss of grip on a bend, etc.).
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.
This system optimises the action of the ESC in the case of pronounced understeer (loss of front axle road holding).
This system helps to limit wheelspin of the drive wheels and to control the vehicle when pulling away accelerating or decelerating.
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 automatically until the drive supplied becomes 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.
When the system detects an operating fault, the © and warning lights come on and, depending on the vehicle, the message “Check ESC” appears on the instrument panel. In this case, the ESC and traction control system are deactivated.
Consult an approved dealer.
These functions are an additional aid in the event of critical driving conditions, enabling the vehicle behaviour to be adapted to suit the driving conditions.
However, the functions do not take the place of the driver. They do not increase the vehicle’s limits and should not encourage you to drive more quickly. Therefore, they can under no circumstances replace the vigilance or responsibility of the driver when manoeuvring the vehicle (the driver must always be ready for sudden incidents which may occur when driving).
Emergency brake assist
This system supplements the ABS and helps reduce vehicle stopping distances.
The system allows an emergency braking situation to be detected when the brake pedal is pressed. In this case, the braking assistance immediately develops maximum power and may trigger ABS regulation.
ABS braking is maintained as long as the brake pedal is applied.
Hazard warning lights switching on
Depending on the vehicle, these may light up in the event of sudden deceleration.
Depending on the vehicle, when you rapidly release the accelerator, the system anticipates the braking manoeuvre in order to reduce stopping distances.
When using the cruise control:
- if you use the accelerator, when you release it, the system may be triggered;
- if you do not use the accelerator, the system will not be triggered.
When the system detects an operating fault the message “CHECK BRAKING SYSTEM” appears on the instrument panel along with the © warning light.
Consult an approved dealer.
If fitted on the vehicle, grip control makes it easier to control the vehicle on low grip surfaces (soft ground, etc.).
When they need to be replaced, only tyres of the same make, size, type and profile should be used.
Tyres fitted to the vehicle should either be identical to those fitted originally or conform to those recommended by your approved dealer.
When the vehicle is started up, the warning light on button 1 comes on, along with the instrument panel message “STANDARD ROAD MODE ON”.
This position enables optimal usage under normal driving conditions (dryness, humidity, light snow, etc.).
“Road” mode uses traction control functions.
“Soft ground” mode
Turn the button 1: the integrated warning light comes on, along with the instrument panel message “NON GRIP ROAD MODE ON”.
This position enables optimal usage on soft ground (mud, sand, dead leaves, etc.). “Soft ground” mode uses traction control functions. The system automatically switches to “Road” mode after around 25 mph (40 km/h), and the integrated warning light on button 1 comes on.
Turn the button 1: the integrated warning light comes on, along with the instrument panel message “ALL ROADSMODE ON”.
In this position, engine speed is left under the driver’s control. The system automatically switches to “Road” mode after around 25 mph (40 km/h), and the integrated warning light on button 1 comes on.
Hill start assistance
Depending on the gradient of the incline, this system assists the driver when starting on a hill. It prevents the vehicle from rolling backwards, depending on the slope, by automatically applying the brakes when the driver lifts his/her foot off the brake pedal to depress the accelerator pedal.
It only operates when the gear lever is in a position other than neutral (other than N or P for automatic transmissions) and the vehicle is completely stationary (brake pedal depressed)
The system holds the vehicle for approximately 2 seconds. The brakes are then gradually released (the vehicle will move according to the slope).
The hill start assistance system cannot completely prevent the vehicle from rolling backwards in all situations (extremely steep gradients, etc.).
In all cases, the driver may depress the brake pedal to prevent the vehicle from rolling forwards or backwards.
The hill start assistance function should not be used for prolonged stops: use the brake pedal.
This function is not designed to immobilise the vehicle permanently.
If necessary, use the brake pedal to stop the vehicle.
The driver must remain particularly vigilant when driving on slippery or low-grip surfaces and/or on hills.
Risk of serious injury.