Pre Safe, Blind spot and lane departure systems warning.

[rf065]

As the title says, warning has appeared on dash telling me these systems are not available.
Tried plugging Icar soft in but it shows no fault codes and does not seem to have the ability to connect to any of these systems.
Any pointers before taking it somewhere expensive? I've charged the battery and washed/cleaned all the sensors/mirrors/cameras etc, to no avail.

 

[markjay]

Disconnect then reconnect the battery?

(And, yes, I used to be the IT guy.... )

 

[Diesel Benz]

The radar unit at the side of the rear bumper? Better have it diagnosed with a star.

 

[TrueSpirit]

Had a message come on during my motorway drive on Friday. We had thunder showers and very severe rain. Message disappeared after that
Worth checking there is no dirt on your sensors and the windscreen section above the rear view mirror but from the outside

 

[rf065]

The radar unit at the side of the rear bumper? Better have it diagnosed with a star.

Our SLC had the radar unit replaced a few years ago, pretty sure it cost around £600!