Dash cluster going haywire

[Steve Center]

My 2016 Silverado 2500hd 6.6 duramax has suddenly started going haywire. The dash cluster operates normally while driving but as soon as I push the break, the gauges all start bouncing. Speedometer drops to zero and the tachometer drops as well. The blinkers still functioning also. The truck mechanically runs perfect. Everything functions as it should. The radio and ac work normally last well. The info display throws an alarm for the tire monitor system/anti theft system and stabilitack system. I’ve checked the batteries and the alternator. It doesn’t do if 100% of the time but once it starts it continues without end. Has anyone else had this issue.