Maserati GranTurismo 2024 Brake and Stability Control User Manual

Introduction

A stunning car that blends style, power, and cutting-edge technology is the Maserati GranTurismo 2024. The GranTurismo has a number of cutting-edge innovations, including cutting-edge brake and stability control systems that are intended to improve both safety and performance on the road.

Finally, the Maserati GranTurismo 2024’s brake and stability control systems provide as a shining example of how cutting-edge technology and superior automotive design may coexist. These systems contribute to the GranTurismo’s status as a top sports car, providing both enjoyment and safety on every ride, by optimizing braking performance and improving vehicle stability.

Brake and Stability Control Systems

The vehicle is endowed with an Electronic Stability Control (ESC) system, which helps to maintain directional control in the event of loss of grip of the tires. The system is able to detect potentially dangerous situations for the stability of the vehicle and automatically sets the brakes on all four wheels in a differentiated manner, in order to provide a torque settlement of the vehicle.

ESC includes the following subsystems:

1. ABS (Anti-lock Braking System);
2. EBD (Electronic Brake-force Distribution);
3. TCS (Traction Control System);
4. BAS (Brake Assist System);
5. BTO (Brake Throttle Override);
6. HSA (Hill Start Assist).
7. ROM (Roll-Over Mitigation);
8. AVH (Auto Vehicle Hold)

WARNING

1. These systems cannot prevent the natural laws of physics from affecting the vehicle, nor can they increase traction, braking or steering efficiency beyond that afforded by the condition of the vehicle brakes and tires.
2. These systems cannot prevent collisions, including those resulting from excessive speed in turns, following another vehicle too closely, or aquaplaning.
3. The capabilities of a vehicle equipped with these systems must never be exploited in a reckless or dangerous manner that could jeopardize the driver’s and the passenger’s safety or the safety of others.

Electronic Stability Control (ESC)
This system enhances directional control and stability of the vehicle under various driving conditions. The ESC corrects over steering and under steering of the vehicle by applying the brake to the appropriate wheel. Engine power may also be reduced to assist in counteracting the conditions of instability and maintain the right direction. The system is also able to reduce the engine power.
Through sensors fitted on the vehicle, the ESC system detects the driver’s chosen direction comparing it to the one maintained while running. In case of discrepancy between the required trajectory and the current one, the ESC system brakes the appropriate wheel to counteract over or under steering.

1. Oversteer – when the vehicle is turning more than appropriate for the steering wheel position.
2. Understeer – when the vehicle is turning less than appropriate for the steering wheel position.

The ESC system has two available operating modes:

ESC ON
This is the normal ESC operating mode. At each start-up of the vehicle, the ESC system is set in this mode and should be used for most driving conditions. The ESC should only be turned off for specific reasons as pointed out in the following paragraphs.

ESC OFF
The “ESC OFF” mode is aimed for a more spirited driving experience but also purposeful for driving in deep snow, sand, or gravel. The current mode disables all the ESC functionalities except the ROM; in special cases (heavy ABS braking) the ESC system will still work even not engaging the ESC OFF mode. The ESC OFF soft-key is located on the bottom bar of the Comfort Display; to reactivate the system, push the soft-key.

WARNING!
In SPORT and CORSA mode the ESC control thresholds are higher for maximum performance on dry road surface. To ensure maximum security of the ESC is recommended not to activate SPORT and CORSA mode on surfaces with medium- and low-grip (e.g., wet, snow, dirt, etc..) with the ESC system active.

NOTE:
To improve the vehicle’s traction when driving with snow socks, or when starting off in deep snow, sand, or gravel, it may be desirable to switch to the “ESC OFF” mode by pressing the ESC OFF soft-key and remain in this operational mode no longer than needed. Once the situation requiring “ESC OFF” mode is overcome, turn the ESC on again by long pressing the ESC OFF soft-key. This may also be performed while in motion.

Anti-Lock Braking System (ABS) and Electronic Brake-force Distribution (EBD)
The Anti-Lock Braking System (ABS) provides increased vehicle stability and brake performance under most braking conditions. The system automatically “pumps” the brakes during severe braking to prevent wheel lock-up. The Electronic Brake-force Distribution (EBD) prevents the rear wheels from over-braking and provides greater control of available braking forces applied to the rear axle.

WARNING!
The ABS helps prevent the wheels from locking, but it does not increase the physical grip limits between the tires and the road. Therefore, always keep a safe distance from the vehicle in front of yours and reduce your speed when entering a curve.

NOTE:
At key-on you may hear a slight clicking sound as well as other motor noises. The system is performing a self-check cycle to ensure that the ABS is working properly.
ABS is activated during braking under certain road or stopping conditions. ABS-inducing conditions can include ice, snow, gravel, bumps, railroad tracks, loose debris.
You may also experience the following when the brake system goes into Anti-Lock:

1. The ABS motor running (it may continue to run for a short time after the vehicle stops).
2. The clicking sound of solenoid valves.
3. Brake pedal pulsations.
4. A slight drop or fall away of the brake pedal at the end of the stop. These are all normal characteristics of ABS functioning.

WARNING

1. The ABS contains sophisticated electronic equipment that may be susceptible to interference caused by improperly-installed or high-output radio transmitting equipment. This interference can cause possible
   loss of anti-lock braking capability. Installation of such equipment should be performed by qualified Maserati personnel.
2. Pumping the Anti-Lock Brakes will diminish their effectiveness and may lead to a collision. Pumping brakes makes the stopping distance longer. Just press firmly on your brake pedal when you need to slow down or stop.
3. The ABS installed to this vehicle does not control the trailer braking system. Pay utmost attention when driving on slippery ground since the trailer traction might get poorer and driver might lose control of the vehicle.
4. Do not modify the vehicle braking system to control the trailer brakes. The hydraulic system controlling vehicle braking must remain independent from the trailer braking system.

Traction Control System (TCS)

The current device is an integral part of the ESC system. It operates automatically by reducing the power transmitted by the engine in case of slipping, loss of grip on wet floors (aquaplaning), acceleration on slippery snow-covered or frozen surfaces, etc. Activating under slip conditions different control systems:

1. if slippage affects both drive wheels, it reduces the power transmitted by the engine;
2. if slippage only affects one drive wheel, it reduces the power transmitted by the engine and automatically brakes the slipping wheel.

Brake Assist System (BAS)

This system completes the ABS system by optimizing the vehicle braking capacity during emergency brake maneuvers. The system detects an emergency braking situation by sensing the rate and amount of brake application and then applies optimum pressure to the brakes to help reduce braking distances. The quick brake coupling is optimal for BAS performances. To fully exploit the system, apply continuous brake pedal pressure during the entire vehicle stop sequence. Do not reduce brake pedal pressure earlier than required. Once the brake pedal is released, the BAS is deactivated.

Brake Throttle Override (BTO)

To complete the range of systems that assist braking, the vehicle is equipped with BTO, which is designed to stop the vehicle even when it is being accelerated. If the brake pedal is depressed together with the accelerator, the system does not consider as “conflict” the sequence “brake-first-then-accelerator” of pedal application and it may not engage the BTO. When the system recognizes that the accelerator pedal is stuck pressed and the sequence “accelerator-first then- brake-pressed” (this sequence is recognized as a “conflict”), the engine power will be automatically reduced and, if the driver continues to depress the accelerator, the system can make the vehicle to come to a complete stop. Additionally, if the brake pedal is released when the accelerator is still stuck pressed, the corresponding engine torque increase gradually to a safe value. During this event, the ETC light indicator may be illuminated. The system exits from this strategy when the accelerator pedal is completely unstuck.

Hill Start Assist (HSA)

The HSA system is designed to assist the driver when starting a vehicle uphill. HSA will maintain the level of brake pressure applied for a short period of time also after releasing the brake pedal. If the driver does not apply the throttle during this short period of time, the system will release brake pressure and the vehicle will start sloping down. The system will release brake pressure proportionally to the amount of throttle/torque applied as the vehicle starts to move in the chosen direction.

HSA Activation Criteria
The following criteria must be met in order for HSA to activate (if the proper setting is activated on the MIA screen):

1. vehicle is stationary.
2. gear selection matches vehicle uphill direction (i.e., vehicle facing uphill is in forward gear; vehicle backing uphill is in reverse gear).

HSA will work in R (Reverse) and all forward gears when the activation criteria have been met.
The system will not activate if the transmission is placed in N (Neutral) or P (Park).

Roll-Over Mitigation (ROM)
This system anticipates the potential for wheel lift by monitoring the driver’s steering wheel input and the speed of the vehicle. When ROM determines that the rate of change of the steering wheel angle and vehicle’s speed are sufficient to potentially cause wheel lift, it then applies the appropriate brake and may also reduce engine power to lessen the chance that wheel lift will occur.
ROM will only intervene during very severe or evasive driving manoeuvres. ROM can only reduce the chance of wheel lift occurring during severe or evasive driving manoeuvres. It cannot prevent wheel lift due to other factors, such as road and off-road conditions, leaving the roadway, or striking objects or other vehicles.

WARNING
Many factors, such as vehicle loading, road and off-road conditions, and driving conditions, influence the chance that wheel lift or rollover may occur. ROM cannot prevent all wheel lift or roll-overs, especially those that involve leaving the roadway or striking objects or other vehicles. The capabilities of a ROM-equipped vehicle must never be exploited in a reckless or dangerous manner, which could jeopardize the user’s safety or the safety of others.

Auto Vehicle Hold (AVH)

The Auto Vehicle Hold function is an extension of the hill holder function that offers more convenience and extra safety and it works only with the seatbelt buckled.
Operated via the ABS/ESC hydraulic unit, it stops the vehicle from rolling away accidentally when standing still or setting off. When you brake your car to a standstill position with fast brake pedal pressure, Auto Vehicle Hold retains the last-applied braking pressure. AVH can be activated also when the brake is not pressed in specific rollback scenarios and during ACC Stop&Go.
Releasing the brake, all four-wheel brakes will stay on. If the ABS wheel speed sensors detect any rolling, braking force is automatically increased until the car comes to a standstill again. The vehicle will be held in a standstill for up to 10 minutes by hydraulic braking after which time the electric park brake will engage and continue to hold the vehicle in a standstill.
As soon as you press the accelerator, Auto Vehicle Hold reduces the braking pressure.

Limited Slip Differential (LSD)

Mechanical Limited Slip Differential
The mechanical self-locking differential is used to limit the wheelspin of the internal wheel when accelerating out of corners and to stabilize the rear axle when braking.

Electronic Limited Slip Differential
With the electronic self-locking differential the lock percentage is not fixed but varies progressively with a continuous control from 0 – 100 %.
The locking percentage is managed by electro-hydraulic actuators controlled by an electronic control unit integrated into the vehicle’s dynamics control system. On the basis of the information received from the engine, transmission, steering, and brake sensors it decides both when and how much to lock the differential, with very high actuation speeds (up to 100 ms). All this makes it possible to obtain and guarantee greater traction during acceleration, as well as high precision, stability, and maneuverability when entering corners.

When cornering, the electronic LSD can:

1. stabilize the vehicle when the accelerator pedal is released by locking the rear axle;
2. control vehicle dynamics by locking the differential proportionally in relation to lateral acceleration and vehicle speed;
3. maximize both vehicle stability and acceleration when cornering by locking the differential proportionally in relation to lateral acceleration, speed, selected gear, and torque produced by the engine.

To obtain these results, the LSD system interacts with the ESC and ABS systems, automatic transmission, and suspension damping control.

FAQs

1. What is Brake and Stability Control in the Maserati GranTurismo 2024?
   The Maserati GranTurismo 2024 has a brake and stability control system that is intended to improve control and safety while driving. In addition to assisting in maintaining stability and traction on the road, it prevents wheel lock-up while braking.
2. How does Brake and Stability Control work?
   The system makes use of sensors to keep track of a number of variables, including wheel speed, steering angle, and lateral acceleration. It selectively applies brakes to particular wheels and modifies engine torque to help the driver retain control if it notices a lack of traction or instability.
3. What is the benefit of Brake and Stability Control?
   Increased safety is the main advantage of brake and stability control. It improves stability and lowers the risk of accidents by preventing skidding, spinning, and loss of control during emergency maneuvers in inclement weather.
4. Can Brake and Stability Control be turned off in the Maserati GranTurismo 2024?
   The Maserati GranTurismo 2024 and the majority of contemporary automobiles, including brake and stability control, can often be turned off. To ensure maximum safety, it is normally advised to keep the system turned on.
5. Does Brake and Stability Control affect performance?
   Performance is secondary to safety in brake and stability control. Under typical driving conditions, it may intervene to preserve stability in some circumstances, although it has little impact on the vehicle’s overall performance.
6. Will Brake and Stability Control prevent me from drifting or performing controlled slides?
   Wheel slide is prevented and stability is maintained with brake and stability control. various cars have a Sport or Track mode that provides more latitude and disables various stability control features, albeit it could interfere with deliberate drifting or controlled slides.
7. Can Brake and Stability Control help in slippery or icy conditions?
   Yes, in slick or icy situations, brake and stability control is quite helpful. It enhances traction and stability on slick terrain by adjusting engine torque and brake pressure, which helps prevent wheels from spinning.
8. Can Brake and Stability Control compensate for driver error?
   Driver faults like going too fast into a bend or making sudden steering inputs can be lessened with the help of brake and stability control. But it’s crucial to drive sensibly and not rely entirely on the system to catch errors.
9. Is Brake and Stability Control the same as ABS (Anti-lock Braking System)?
   While ABS and brake and stability control have certain similarities, they are distinct from one another. ABS aims to prevent wheel lock-up primarily when the vehicle is braking, whereas Brake and Stability Control performs a wider variety of tasks, such as traction control and stability improvement.
10. Can Brake and Stability Control prevent rollovers?
    By selectively braking and modifying engine torque to preserve stability during emergency maneuvers or difficult driving situations, brake and stability control can help lower the likelihood of rollovers. However, other elements like weight distribution and vehicle design also have a big impact.
11. Can Brake and Stability Control help when towing with the Maserati GranTurismo 2024?
    The Maserati GranTurismo 2024 can tow with more stability and control thanks to the brake and stability control. It can improve safety when towing by preventing trailer wobble and maintaining stability during braking or unexpected maneuvers.
12. Does Brake and Stability Control require regular maintenance?
    Brake and stability control are integrated into the electronic system of the car and don’t need any special upkeep. To make sure all systems, including the brake and stability control, are working properly, it is advised to adhere to the manufacturer’s recommendations for routine vehicle maintenance.
13. Can Brake and Stability Control malfunction or have faults?
    Brake and Stability Control, like any electrical system, is susceptible to defects or malfunctions brought on by sensor issues, wiring issues, or other technical concerns. It is advised to have the system checked out and fixed by a trained professional if you detect a problem.
14. Is Brake and Stability Control standard in the Maserati GranTurismo 2024?
    The Maserati GranTurismo 2024 has brake and stability control as a standard safety function, as do the majority of contemporary automobiles. It usually comes with the standard safety package for the car.
15. Can I disable Brake and Stability Control for off-road driving?
    It is generally not advised to turn off the brake and stability control while driving off-road. Even on uneven or unpaved ground, the technology offers helpful support in maintaining stability and control. For particular instructions on off-road driving with Brake and Stability Control, it is advised to refer to the owner’s manual or get in touch with a Maserati dealership.

Useful Links

View Full User Guide: Maserati GranTurismo 2024 User Manual | Auto User Guide
Download Manuals: On-Board Owner Documentation | Maserati