Hi James_AU,
Thank you for getting back to me. I'll be calling a garage on Monday morning. I need to get it dealt with before Thursday afternoon, as I'm getting a cracked windscreen replaced then. That requires the EyeSight system to be calibrated etc., which will be tricky to do if the system is disabled.
I might just have to get the code read and reset, so I can get things calibrated, then get the issue dealt with.