Anti-skid system (ESPplus)
On models with the appropriate configuration, the ESP system improves vehicle stability while driving and at the same time provides automatic control of the traction force of the power unit in all operating modes. If there is a risk of the car skidding on a command coming from the ESP control module, the power developed by the engine is automatically reduced, at the same time the wheels that start to skid are released or the wheels are controlled to brake at too high a speed of their rotation, which counteracts the skid and increases the vehicle's controllability. ESP activation occurs automatically every time the ignition is turned on after the corresponding indicator on the instrument cluster turns off (see Section 16).
When driving on a road with low traction or when making sharp maneuvers, the ESP is automatically activated - while the traction indicator on the instrument panel is activated in flashing mode. The operation of the system is accompanied by a pulsation of the foot brake pedal and noise (vibration) in the underhood space.
Attention: Remember that when the ESP is operating, the car is moving at the limit of traction, which borders on loss of control - be especially careful when driving further!
Turning on the lamp in continuous mode while driving indicates a failure in the system (see Section 16).
On models of the corresponding configuration, it is possible to force the ESP to turn off when the sport mode is on using the button «SPORT» (see Section 17).
Anti-lock brake system (ABS)
Attention: ABS improves the braking properties of the car, but will not be able to prevent collisions during careless and dangerous driving, especially on slippery roads! Avoid negligence in driving, relying on the auxiliary systems of the car - the responsibility for traffic safety lies entirely with the driver!
ABS prevents premature wheel lockup by continuously controlling wheel speed during braking by modulating hydraulic fluid pressure in each of the brakes.
The system consists of electronic sensors, electric pumps and solenoid valves of the hydraulic brake system and is controlled by an electronic device. Checking, adjusting and servicing the ABS system should be carried out by specialists only in a service station.
If, during braking, electronic sensors detect that one or more wheels are close to complete blocking, the control module activates the actuator, which, by modulating the pressure of the hydraulic fluid, will keep the wheels on the verge of their complete blocking. Sufficiently noticeable pulsations of the foot brake pedal, characteristic noise and slight vibration in the engine compartment are associated with the activation of the ABS and should not cause concern - continue to depress the pedal. The car remains steerable when the brake pedal is fully depressed, and even in the event of emergency braking, it remains possible to go around an obstacle. Each time the engine is started, a special control module diagnoses all the devices included in the ABS system - in this case, a characteristic dull noise can be heard and a noticeable pulsation of the foot brake pedal occurs. If a malfunction is detected in the system, the control module disables the ABS - the corresponding indicator lights up on the instrument panel (see Section 16). The service brake system will continue to function normally - when the pedal is fully depressed, the wheels are blocked from turning - be careful!
Attention: If the ABS indicator comes on after checking the system or with the engine running, contact an Opel workshop as soon as possible!
The functioning of the ABS is automatically terminated when the speed drops to 5+10 km/h.
Dynamic damping control system (CDC)
The CDC system automatically adjusts the stiffness of the vehicle's suspension depending on the driving conditions and road surface characteristics. The system continuously monitors the movement of the wheels and the vehicle and changes the stiffness of each shock absorber, ensuring that the chassis is optimally matched to the driving conditions and road surface properties.
When sport mode is activated, the damper control adjusts for a more sporty driving style («tough» suspension). In the event of a system malfunction, the corresponding warning lamp in the instrument cluster lights up (see Section 16).
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