FYI, most CELs, Alerts, and Warnings can be reset by pressing the right arrow button on the dash display, or the remote switch by your side panel.
Sounds like an intermittent sensor issue possibly. Did the tech in Orlando wiggle the Wheel Speed wires around, and maybe spray some water?
I’d also suggest disconnecting and reconnecting any available harness connections. Apply a small amount of dielectric grease and reassemble.
What does Spartan say?
2017 Entegra Aspire 44R (bunks) towing 2019 F-350 LB (Sold)
2012 Tiffin Phaeton 40QKH (Our Phaeton was so nice, we bought it twice)
2016 Open Range RF376FBH (Sold)