Yaris Hybrid local radio problem

[TBas]

I'm having issues with my radio station, it's just an annoyance really but it's my favourite radio station. I listen to Heart Essex, I haven't changed a thing and had the radio on "do not change according to location", so would stay on Essex no matter where I went in the country. Anyway, 2 days ago it suddenly started playing "Northamptonshire" instead, despite the screen description saying "essex". All the news and weather is for the wrong area. There's no issues with the station signal, I can play the station from my computer. I have no idea how to reset the radio or rescan for stations. Any ideas what to do? TIA. 

[anchorman]

It could be that Northampton have popped up with a stronger transmitter on your wavelength.   Have you got a Dashcam fitted?

[flash22]

On DAB ? It may have switched over to FM and not switched back, on FM - Essex is on 102.6 (Chelmsford) or 96.3 (Benfleet) and Northants being on 96.6

DAB has a lot more coverage

https://www.radiodns.uk/multiplexes/c19c

iirc on the new gen touch 2 you use "Ensemble" to retune the DAB