2019 F150 with BLIS and Max Tow. Setting up my travel trailer, and blind spot asks for trailer length. I enter it, then try to activate blind spot trailer feature, but it says no trailers stored. I have saved 4 different versions of my trailer trying to get it to work, so I don't understand the error message that no trailers are stored.

There seems to be no troubleshooting for this in owners manual.

Thanks for any hints.

 

You might end up having to ask your dealer for assistance.

Also, it might not be capable of blind spot detection if your trailer is way too long. But thats a guess on my part.

When I tow, my blis is disabled and I couldnt care less.

 

Besides setting BLIS up in the towing tab you also have to enable it in the setting tab.

 

Thanks, that was it. Ford needs to get a new UI engineer, totally unintuitive that if you setup your trailer in the trailer settings, you still have to go to some other menu to turn it on.

 

Having the same issue, hauled a 30ft boat down to Atlanta, worked fine. Didn’t work on the way back home. Thought boat may have been sitting different on the trailer. Using a 14 ft utility trailer today and nothing. Brakes work, it knows the trailer is there, but says trailer blind spot off on the towing information. In the past it always says on. Please help this is very frustrating. 2019 f150 platinum.