Guys I’m hoping you can help me I have a 2017 ATS 2.0 RWD I’m having a problem where the car intermittently will lose power and cut out as I’m driving for about 45 Seconds to a minute where the instrument cluster goes black and then turns back on in limp mode where the transmission starts over revving and all the warning lights light up and it starts revving high by itself and speeding up where I have to slam on the breaks I run the diagnostics and I always get the same codes BCM lost communication with ECM AND TCM I’ve changed the transmission rear end all the modules Battery and can’t seem to get this problem to go away it will be good for a few months then randomly do it again and now I can’t even get it to start I know it’s an electrical issue or a bad ground has anyone else had this happen to them or know what might be going on I would greatly appreciate it