Roll Stability Control

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.

The Roll Stability Control function uses the brake system and engine torque control to attempt to restore vehicle stability if the vehicle is forced into such a harsh maneuver that it risks tipping over.

The Anti-lock Brake System (ABS) control module monitors driver inputs and vehicle behavior using various powertrain signals and inputs from the wheel speed sensors, Steering Angle Sensor Module (SASM) and the Restraints Control Module (RCM) (roll rate, yaw rate and lateral acceleration data). These are compared with modeled behavior and if vehicle behavior reaches a given risk level, the ABS control module initiates a reduction in engine power, or brakes one or more wheels sufficiently to correct the vehicle stability and assist the driver to remain in control.

While in power mode 6 or 7, Roll Stability Control is permanently enabled, even when Dynamic Stability Control (DSC) is selected off.