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DRIVING CORRECTION DEVICES AND AIDS

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Depending on the vehicle, this is composed of:

- anti-lock braking system (ABS);

- the electronic stability control (ESC) with understeer control, side winds assistance and traction control;

- driver assistance with a trailer;

- emergency brake assist;

- traction control;

- hill start assistance.

Other driving assistance systems are detailed on the following pages.

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.).

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.

Operating faults:

- © and x are shown on the instrument panel with the messages “WARNING: Check ABS” and “WARNING: Check ESC”: this confirms that the ABS, ESC and emergency braking systems are deactivated. Braking is always enabled;

- x, D, © and ® lit on the instrument panel accompanied by the message “WARNING: Braking System”: this indicates a fault with the braking system.

In both cases, please consult an Authorised Dealer.

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.).

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.

Understeer control

This system optimises the action of the ESC in the case of pronounced understeer (loss of front axle road holding).

Assistance with side winds

This system optimises the action of the ESC and also helps to control the vehicle in case of variation of side winds. It helps maintain the vehicle trajectory through the use of the brakes.

If the system is triggered, the warning light appears on the instrument panel.

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.

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).

Traction control

This system helps to limit wheelspin of the drive wheels and to control the vehicle 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 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.

Operating faults

When the system detects an operating fault the message “WARNING: 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.

Driver assistance with a trailer

This system helps to maintain control over the vehicle while using a trailer. It detects shaking caused by towing a trailer under certain driving conditions.

Operating conditions

- The towbar must be approved by an authorised dealer;

- the harness must be approved by an authorised dealer;

- the towbar must be connected to the vehicle.

Operating principle

The function stabilises the vehicle by:

- asymmetric braking of the front wheels to reduce shaking caused by the trailer;

- braking of all four wheels and limitation on engine torque to reduce the vehicle speed until the shaking has stopped.

Warning light flashes on the instrument panel to inform the driver.

Emergency brake assist

This system supplements the ABS and helps reduce vehicle stopping distances.

Operating principle

The system is for detecting an emergency braking situation. 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.

Operating faults

When the system detects an operating fault the message “WARNING: Check ABS” appears on the instrument panel along with the © warning light.

Consult an approved dealer.

Grip control

If fitted on the vehicle, grip control makes it easier to control the vehicle on low grip surfaces (soft ground, etc.).

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.

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).

Press the 4 switch: the message “Grip Extend Loose Surface ON” is displayed on the instrument panel.

This position enables optimal usage on soft ground (mud, sand, dead leaves, etc.). In this position, engine speed is left under the driver’s control.

The system automatically switches to “Road” mode at speeds above about 31 mph (50 km/h). The message “Standard road mode on” is displayed on the instrument panel to warn you.

Tyres

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.

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 gradient of the incline) by automatically applying the brakes when the driver lifts their foot off the brake pedal to press the accelerator pedal.

System operation

It only operates when the gear lever is in a position other than neutral 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 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.

Risk of serious injury.