NHTSA Complaint #11579832 — 2018 RAM 2500

When taking off initially with the truck sometimes within the first 30 seconds of moving there is two yellow lights that come on the dash, while the center text window displays service brake system. The stored MIL code is C0020-01. Also when going over bumps in the road the message will also return. Sometimes it stays on, and I do not have the ability to use cruise control. One time I was driving on the freeway and the surface was wet, as it had been raining. I needed to slow down rapidly because there was a sudden change in traffic. I went to hit the brakes and the truck had locked up the wheels, and then after the same lights and text were displayed.