ECM PROBLEM ?

[softshift6.7]

Not happy, Blind spot service pops up, then radio and display all goes black , defrost starts blowing hot full blast, occasionally display tries to come up but then goes black again , 2020 ,2500, 6.7 , 31,000 miles , bought new , service appointment monday

 

[Brutal_HO]

Push all the fuses in tight and check the underhood grounds.