Production startup date depends on the model and configuration. The Silverado 1500 regular and crew cab are scheduled for 8/29/22,
the double cab for 9/6/22, per the Donlen site: https://www.donlen.com/manufacturer-updates/build-out-startup-dates/gm-trucks-build-out-final-order-start-up-dates/
I traded my 2021 2500 HD Custom CC LB 4×4 6.6 gas on 12/22/21 for a 2022, same model, and order has not been picked up by GM due to constraints and dealer lack of allocation. I learned two weeks ago, from my dealer, that GM will not produce any more long beds this year so if I wanted the long bed I will have to reorder a 2023. I placed the order 6/10/22 with out knowing the pricing yet. I am aware that I am losing my price protection on the original order and can only hope the dealer treats me well. He said he would. Original order was at MSRP with an even swap for trade.
Production start up for the 2500 crew cab is 7/18/22 but dealer does not know when he will get allocation to get accepted or what will be on constraint at that time or when pricing will be available. At this point it’s all a big gamble ordering a new vehicle!