I had the BCI malfunction and a hard time starting my 2019 Armada. I bought a Brake Light Switch from Rockauto, and replaced it. It took about 2 minutes to remove the old and put in the new. I continued to have the BCI malfunction. I saw someone post in this thread to get an older Brake Light Switch from a junkyard. I don't have any experience with junkyards, so I went to Ebay and bought a 2010 Infinite Brake Light Switch (used). After I installed the 2010 brake light switch, I have had 0 problems and the collision system works better than it ever has. If I were you, I would buy an older Brake Light Switch, my price shipped was 15 bucks, and it should take care of the issue. Hope this helps!