I have a 2018 Tahoe and using an iPhone 8 with iOS 13.3.1 and having this issue- CarPlay doesn’t always work when plugged in- also getting notices that phone is not connected- just doesn’t make sense. I tried the settings and shit of off- turned it off and on, used an apple charger- nothing is working and very flustered by this! Chevy what else can be done!!?