Theweavman

I have a 2019 AT4, I do not know when my problem began, Installed a new step rear bumper and when testing everything I noticed that I was getting a " side detection temoraily unavailable" DIC warning intermittently. After checking the owners manual, it said that Upon starting my truck the two amber indicators in my outside rear view mirrors should light up, which is an indicator that the system is operating normally. So I checked and they both lit up upon start up. But after a few miles of driving I would get the DIC read out again, and the system did not appear to be working, pressing the "lane assist" switch on the dash was not working either. Had my truck at the dealer for the latest recall soft ware updates, and after the update I noticed the DIC side detection unavailable warning came on as soon as I started the truck and no longer were the amber indicators lights in the rear view mirror illuminating at all... This has now continued upon every start up......The service advisor told me two things, One that if there was a malfunction with this system, the DIC would not say unavailable, it would say it requires service, and 2, that my problem was most likely due to the fact that I had a tow hitch that was interfering with the system...Went home removed my hitch, and no change.....thought maybe it was a result somehow of my bumper change, but after reading here, believe it has nothing to do with my bumper change, as others with stock bumpers seem to have the same problem....verified all connections, have even ordered a new, on back order, Bumper Sensor control module object sensor, as I scratch one slightly when changing bumper, doubt its the problem but was worth a shot, we will see if any change when I get it........But I'm open to see if anyone has found a real solution or cause, I don't think its the camera in the center rear view mirror mount......could not locate any fuses that seem to be in this system to check either.......Thanks for any assistance