dash cluster

I just had a radio installed on my 2011 buick regal and now on my dash cluster it Japanese or Chinese when it was in English how do I get it back to English?

Ok so here's the deal. sometimes...(not all) with the vehicle off,key on, or running. makes no difference the auto door locks will freak out and rapidly actuate on their own. while doing this the rear glass defogger switch will buzz loudly. as well as everything on intrument cluster works...

Hey, not sure if this is the right thread, sure hope it is. SO. I recently purchased the ls and I'm having the cluster issue, everything works except the speedo, gas, and tach lights (that I know of) now the odometer digital gauge, stereo and a/c control lights and digital outside temp lights...

Mileage and trip dont work. Help please. Its a 93 roadmaster limited sedan. It sometimes works and the tripometer (counter in the top left cornor) sometimes goes forward and some times goes backwards, How can i take the cluster out to see whats wrong with it? Any ideas people?