Carrier/rack problems of the 2019 GMC Sierra 1500

I received notice that there are two recalls out for my truck: a brake system recall and a forward camera/collision recall. Had both recalls performed and immediately the forward camera collision alert, lane keep and intellibeam systems didn't work. Delaer informed me there is a problem with the update and I need a new camera. That is on order and pending. More importantly, about 2 days after the updates the truck showed alerts about the brakes, traction control and stabilitrack systems. Upon driving the truck the power/vacuum assist system failed and the brake pedal nearly went to the floor before engaging brakes; I could barely stop. Returned the truck to the dealer and was told its a common issue with the brake recall update (the truck had no such symptoms before the update). If you check out various gm vehicle owner forums you will see scores of silverado and sierra owners with the same two issues post-update: no collision camera and sudden loss of brakes. There is a problem - a very dangerous problem - with these updates.