Electronic Traction Control (ETC)

The ability to control the vehicle while driving, is lost as a result of excessive wheel spin or slip if a tire exceeds its ability to:

• Maintain traction
• Accept side forces to maintain directional control

The ETC feature of the DSC on the Range Rover cannot be switched OFF with the DSC switch. Pressing the button will only switch off the dynamic stability control function of the DSC.

The traction control feature is needed at all times to provide anti-wheel spin control especially when driving the vehicle off road. The DSC warning lamp in the instrument cluster will come on when the system is switched off manually or there is a fault in the system.

Off road traction control or HDC operation places an additional load on the brakes. To prevent overheating of the brakes and discs, the temperature of the discs is calculated over time from the road speed and amount of brake application (from the pressure sensor). If the temperature of one or more discs goes above approximately 600°C, the traction control function for that wheel will be cancelled temporarily. Engine intervention is still active to prevent spinning of that wheel. Once the temperature of the disc goes below approximately 500°C, the traction application will be reactivated.

The normal braking function (including ABS) is always active at any temperatures.