With my 2019 Ram Laramie. It starts out very intermittent and worsens over time. It affects more than just the blind spot monitor as well. My radio will cut out and in, my front door windowa won't work or work intermittently, Heated/cooled seats are inop and its difficult to adjust any environmental controls. I took my 2019 Ram into the dealer for the first time 3 months ago. The trouble shot for 3 days and chased it down to a faulty module in the drivers side door. Changed it and it was fine for a short period. It has since returned. I am visiting my dealership for the second time for the same issue. Again the technician downloaded 27 pages of fault codes that were saved in the computer. Now they are talking to engineers at Chrysler and a lead mechanic for the region. They think at this point, it may be a bad wire bundle that was installed in many 2019 and 2020 ram trucks according to my service manager. I hope they can nail this down to a hard fault and swap out what ever is confusing or burning up these modules. I will try and keep this thread posted as I get information. Keep and eye on your information panel. If it worsens and other things like heated/cooled seats are inop, radio cuts out and in front driver/passenger windows work intermittently are examples of further degradation. If so, take it into your dealer and have them look into it. So glad I bought the extended warranty with this truck. Good luck.