EXT switch

The EXT switch is a safety function which makes it possible to control some of the vehicle’s functions from outside of the vehicle. The functions you can control depend on the vehicle’s equipment and the logics that have been created in the vehicle’s bodywork system. 

When you press the EXT switch, the EXT symbol lights in the instrument cluster.

The EXT switch. Activate the switch when you  need to control some of the vehicle’s functions from  outside of the vehicle.