My 2019 Silverado Custom has had this problem for the past 6 months. Screen frozen, cannot find phone and blacking out. Very frustrating. Contacted the dealer and they replaced the display but it did help. This is my second Silverado that did this. As soon as possible, I will switch to a Ram. Chevy does not know how to fix their own product on a 40 thousand dollar truck. Lost confidence and will not recommend Silverado trucks when asked. This is a vital feature to the truck not to work reliably.