I changed my from brakes and forgot to put my 2020sverado into maintenance mode. Set reduced power and T/C also brake warning and ABS. SO I So I tried set it into maintenance mode and reset it. Did this several times with no change. Then my parking brakes locked. Got a scan tool reset all DTC’s. But still had service engine light. Truck ran fine until I shut it off. As so as I turn it on ALL DTC’s came back with reduced power and steering. Limited speed also. Docs are: U3007, P0604(1/10), p25A2-00, C116C-71, C116B-71, C116B5A, C053B, C0021, C1595, any thoughts would be appreciated . And now the parking brake won’t release
