So my friend just picked up a 2019 3500 Denali. He got the CTS2 monitor right away. It appears that the truck will get to about 50-55% soot, then jumps up to 100% and starts a regen and is only in regen for about 20-25 minutes. It has done this twice now. I know driving habits and type of driving greatly effects all of this but why would it jump from such a low percentage? He doesn't even have 500 miles on it yet. So about 200 miles between two regens, both doing this jump. Any ideas???