Roll Stability Control (RSC) is an active vehicle safety system that automatically intervenes if a high rollover risk is detected while driving. If a rollover threat is occurring, the system intervenes and assists the driver in minimizing the rollover risk by automatically reducing vehicle speed.Roll Stability Control is designed specifically for your truck or tractor to help maintain vehicle stability and aid in reducing vehicle rollovers. RSC continuously checks and updates the lateral acceleration of the tractor and compares it to a critical threshold where rollover may occur. When the critical threshold is exceeded, RSC intervenes by reducing engine torque, and engaging the engine retarder, while automatically applying drive axle and trailer brakes. Frequently, activation takes place before the driver is aware of the need. RSC is integral to the anti-lock braking system (ABS) and automatic traction control (ATC) requiring only one additional valve for operation.