Welp, Add me to the Service ESC group.... 1847 Miles 2019 Silverado High Country 6.2. Second time this has happened after scheduling an appointment at my local Chevy Dealer this time the truck through 2 codes P25A2 (The Engine and Transmission System is not performing as expected. An issue has been detected in the Engine Electrical System, including the Charging and Starting System that monitors and controls the engine starting system and 12V battery charging system. If the charge system light stays on, or comes on while driving, there may be a problem with the electrical charging system. Driving while this light is on could drain the battery. If a short distance must be driven with the light on, be sure to turn off all accessories, such as the radio and air conditioner) and C0021 (An issue has been detected in the Antilock Brake System.)
I do find it interesting that both occurrences have happened while starting the vehicle with the MyChevrolet App. This could be a coincidence. I also find it ironic that the truck has not done this until AFTER I had the perform the Brake recall per their request... Currently the check engine light is on and my appointment is 1/7/2020 I will update after the service is performed. I also plan on notifying GM. This is ridiculous!
Video of ESC message