My mom has a ‘19 Blazer RS with wireless charging so i tested phones with hers and my vehicles. I used 2 IPhone 11 Pro-Max’s both with iOS 13.6, moms iPhone XR with iOS 13.6, and my Samsung work phone (Android). These were the results: Silverado: My 11 charged 1/10 times Wife’s 11 charged 1/10 times Moms XR charged 10/10 times Android charged 10/10 times On the Blazer: My 11 charged 1/10 times Wife’s 11 charged 1/10 times Moms XR charged 10/10 times Android charged 10/10 times It seems to definitely be an iPhone 11 problem and not a GM problem. Even weirder was her iPhone XR worked on both trucks every time. Sent from my iPhone using Tapatalk