Renault Boreal

Depending on the vehicle, they may include:

• the ABS (anti-lock braking system);
• emergency brake assist;
• of the electronic stability programESC with understeer control and traction control;
• hill start assistance;
• deceleration speed control;
• multi-collision braking.

ABS (anti-lock braking system [ABS])

During heavy braking, the ABS prevents the wheels from locking, allowing the stopping distance to be managed and control to be kept 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 roadholding. 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.).

Operating faults:

• and lift the instrument panel accompanied by the messages "Check ABS", "WARNING: Check Braking System" and "Check ESC": this indicates that functions ABS, ESC and Emergency Brake Assist are disabled. Braking is still provided;
• , , and are lit up on the instrument panel, accompanied by the message "WARNING: Braking System": this indicates a fault in the braking system.

In both cases, contact an authorised dealer.

Emergency brake assist with electronic brake distribution

(depending on the vehicle)

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

Operating principle

The system is designed to detect an emergency braking situation. In this case, brake assist immediately applies the maximum force and may regulate the ABS.

ABS braking is maintained as long as the brake pedal is applied.

Electronic stability control ESC with understeer control and traction control

Electronic stability control ESC

(depending on the vehicle)

This system helps you to keep control of the vehicle in critical driving conditions (avoiding an obstacle, loss of grip on a bend, etc.).

Understeer control

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

Traction control

This system helps to limit wheelspin of the drive wheels and to control the vehicle when pulling away accelerating or decelerating.

Disabling the ESC function

(depending on the vehicle)

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 wheelspin. If this is not necessary, you can deactivate the function by holding down switch 1.

The indicator light on the instrument panel comes on to warn you of this. If you disable this function, the traction control system will also be disabled.

As the electronic stability program ESC with understeer control and traction control provides additional safety, you are advised not to drive with the function turned off. Get out of this situation as soon as possible by pressing switch 1 again.

Note: this feature is automatically reactivated when the ignition is switched on or when the vehicle speed exceeds approximately 31 mph (50 km/h).

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 the input from the driver on the actual direction of the vehicle and corrects the direction by controlling the brakes on some of the wheels or the engine output. If the system is active, the indicator light will flash on the instrument panel.

Operating faults

If the system detects a system failure, warning lights and light up on the instrument panel and, depending on the vehicle, the message "Check ESC" is displayed on the instrument panel. In this case, the Electronic Stability Program ESC, with understeer control and traction control, is disabled.

Please consult an authorised dealer if these warning lights remain displayed on the instrument panel after the ignition is switched off and on again.

Deactivating the traction control system

(depending on the vehicle)

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 by automatically applying the brakes when the driver lifts his/her foot off the brake pedal to depress the accelerator pedal.

System operation

It only operates when the gear lever is in a position other than neutral (other than N or P on an automatic gearbox) and the vehicle is completely stationary (brake pedal pressed).

The system holds the vehicle for approximately 2 seconds. The brakes are then released (the vehicle will move according to the slope).

If the system detects an operating fault, the warning light and, depending on the vehicle, the "Check Hill Start Assist" message is displayed on the instrument panel. Consult an approved Dealer.

Multi-collision braking

Multi-collision braking reduces the risk of an additional collision after an accident by temporarily bringing your vehicle to a standstill.