Hi There im having the same issues here, 23,000 miles on my 2020 Trail boss Silverado and im not sure if I accidentally pressed some buttons in my remote that messed up something. but. when I try to start it says that there's no detection of remote and then tells me to put fob in slot but I have to hold start button and press brake for a while to start. haven't had any issues until now. and Tire pressure monitor system stop working and light came on in the dash. Don't know if this is related. Got home and pulled out my xtra FOB control and also did not work. Remote start will not work, can't even get door locks to work with the remote. Does any one know what's going on. Would hate to take it to dealer and spend who knows how many days waiting for them to fix it. Im going to check for fuses and try to find a way to maybe figure it out.