DSC Switch

WARNING: This page is about a different car, the 2013 Land Rover LR4, 2012 Land Rover LR4, 2011 Land Rover LR4, and 2010 Land Rover LR4. However, it is still accessible from the selected car via links, so may be relevant.

The DSC switch allows the DSC function to be selected off. Although Land Rover recommend that DSC is selected on for all normal driving conditions, it may be beneficial to de-select DSC, to maximize traction, under the following conditions:

If the vehicle needs to be rocked out of a hollow or a soft surface.
Driving on loose surfaces or with snow chains.
Driving in deep sand, snow or mud.
On tracks with deep longitudinal ruts.

The DSC switch is a non-latching switch installed in the center switch pack on the instrument panel. Pressing the DSC switch connects an ignition power feed to the anti-lock brake system (ABS) module. With the first press of the DSC switch, the anti-lock brake system (ABS) module disables the DSC functions. When the DSC switch is pressed again, the anti-lock brake system (ABS) module re-enables the DSC functions. The DSC switch must be pressed for a minimum of 0.3 s for the anti-lock brake system (ABS) module to react. The DSC function is re-enabled at the beginning of each ignition cycle.

The status of the DSC switch selection is shown by the DSC warning indicator. The DSC warning indicator is off while DSC is selected on, and continuously illuminated while DSC is selected off.

A DSC switch request to disable DSC is ignored if the air suspension system has failed, or is in off-road height at speeds above 60 km/h (37.5 mph).

To guard against incorrect operation or a broken switch, if the input from the DSC switch is held high for more than one minute, a failure is stored in the anti-lock brake system (ABS) module.

Even if DSC is deselected, driving maneuvers with extreme yaw or lateral acceleration may trigger DSC activity to assist vehicle stability.