We have recently bought our first motorhome through a local supplier which is on a 2001 Peugeot Boxer. The handbook talks about a red key that is used by the technicians when work is done on the vehicle. This red key wasn't with the two sets of keys we were given. We have told the supplier that it is missing and we hope they find it - apparently the technician used it when the vehicle was serviced prior to handover to us. Does anyone know how vital this key is and what has to be done if it is lost?