HDC: Hill Descent Control

During steep descents on low-traction road surfaces (sand, gravel, snow and ice) the engine's drag torque is not enough to maintain vehicle speed at a low, constant rate. Owing to its relatively low speed and the low-traction road surface, if the brakes are applied the vehicle will tend to pull to one side, despite ABS.

HDC employs selective braking intervention to consistently maintain the preset speed (maximum of 25 km/h) and simultaneously stabiles the vehicle in a process mirroring closed-loop control from DSC.