Finally found the answer... credit goes to Humph.
I'm not sure why I didn't find that on my first search, but nevermind
MAKE SURE DRIVERS DOOR IS CLOSED
Do not press clutch / brake
Press Start button
Wait until the Car / revelant Service symbol disappears on the Rev counter display
Immediately after the symbol goes out - Press and hold Both buttons on the Rev Counter
Continue to hold - the system Will run a dash light check
Continue to hold
Display will then show VIN / Menu, - continue to hold through this until the time Reappears on the display.
Now release Only the Right hand Button (trip reset) for about a second, and then press and hold again (whilst still holding the LH button)
After another second or 2 the display will show the Front Brake Symbol You Are Now in the Service Menu
Use the BC Button (on indicator stalk) to scroll through to the relevant symbol - eg Rear Brakes
To Reset the warning indicator light - Press & Hold the BC Button at the revelant symbol until RESET appears - then press and hold again until the process is complete.
Turn Off and On the Ignition again - Warning should now have gone!