DNA Driving Mode Selector
DESCRIPTION
The vehicle is equipped with a Vehicle Dynamic (DNA) driving mode selector switch. The selection switch offers various modes which can be selected by the driver according to the increased technological level offered by the various trim levels available for this vehicle.
The DNA driving mode selector will be inoperative if the vehicle has an active check engine light. Refer to the appropriate diagnostic information to correct the condition.
There are three DNA switch selections are according to the vehicle trim level:
- Dynamic - Natural - Advanced Efficiency
- Dynamic - Natural - Advanced Efficiency and controlled shock absorbers button
- Race - Dynamic - Natural - Advanced Efficiency and controlled shock absorbers button (Only for the Quadrifoglio version).
When the driving mode selector is in the "Natural and Advanced Efficiency" position, the programming for the modules involved are calibrated to driving aimed at increasing fuel economy and reducing emissions.
When the driving mode selector is in the "Dynamic" position, the programming for the modules involved in this mode are calibrated for sporty driving while maintaining the emission pollution strategies.
When the driving mode selector is in the "Race" position, the programming for the modules involved in this mode implement a "Track Day" driving mode: enhancements of the sporty features of the vehicle.
In the "Dynamic" and "Race" positions, when the button with the shock absorber electronic control symbol directly in the middle of the DNA selector, the Chassis Domain Control Module (CDCM) controls the shock absorbers solenoid valves directly to increase the damping level and driving comfort.
OPERATION
The management strategy is implemented by the Body Control Module (BCM) which dialogues via CAN with the various involved control units.
The module programming modifications according to the DNA switch position are shown in the following table:
| RACE | DYNAMIC | NATURAL | ADVANCED EFFICIENCY | |
|---|---|---|---|---|
| Electronic Stability Control (ESC) | OFF | High tripping threshold | Standard tripping threshold | Standard tripping threshold |
| ASR | OFF | Less intrusive | Standard tripping threshold | Standard tripping threshold |
| Brake Pedal Feedback | Sporty calibration. Short pedal stroke. |
Sporty calibration. Short pedal stroke. |
Standard tripping threshold | Standard tripping threshold |
| Torque Vectoring V6 | Drift mode | Sport Mode | Standard mode | Standard mode |
| Torque Transfer Control (TTC) | Function not present | Aggressive intervention (TTC only differential open) | Standard mode | OFF |
| Steering | Less assistance and sportier driving | Less assistance and sportier driving | Standard mode | Standard mode |
| Dynamic Steering Torque | Low tripping threshold for low over/understeering for Mu Split | Low tripping threshold for low over/understeering for Mu Split | Standard mode | Standard mode |
| Engine | Increased overboost (increased torque and RPM limit). | Sport pedal map overboost (torque increase) | Standard mode | Standard mode |
| V6/V3 cylinders off | OFF | OFF | ON | ON |
| AT transmission 4 cyl. | - | Faster shifting speed | Comfort mode | Comfort mode (different shifting zone) |
| MT transmission | Powershift function | Standard mode | Standard mode | Standard mode |
| Sailing Function Fuel Saving | Off | Off | Off | On |
| Engine Stop Start (ESS) | Off | On (deactivation from button) | On (deactivation from button) | On (deactivation from button) |
| Electronically Controlled Shock Absorbers | SPORT mode (rolling reduction) | SPORT mode (rolling reduction) | Standard mode | Standard mode |
| Hazard light automatic emergency braking activation | High threshold | High threshold | Standard threshold | Standard threshold |
| Cruise Control | Standard mode | Standard mode | Standard mode | Less torque when pressing Resume |
| Transfer case | Function not present | Low torque to front differential | Standard value | Standard value |
| Transfer Case and Electronic Limited Slip Differential (ELSD) | Function not present | Low torque to Front. More reactive ELSD. | Standard value | ELSD not controlled |
| ANC | More sound | More sound | Off | Off |