What has worked me 100% now after first bringing the truck home and experiencing this issue .... I'm now 4 out 4 successful with an 8000lb camping trailer.
1. PowerBoost absolutely has to be off 100%. Not in idle or electric idle, fully off, when connecting.
2. Really need to press firmly for a...
I have this problem too, '21 PowerBoost purchased Mon 9/27 right off the delivery truck (Rep called me to come in ASAP).
Purchased 6-Month old K-Z 31' Connect on Wed 9/29. Got the whole thing leveled with the sway bars and such, all lights, and everything works fine (used the Ford App). No...