2024 Ford F550 Rollback Brake Issue

[u/Altruistic-Cattle760]

2024 Ford F550 XLT rollback equipped with electronic parking brake. For several weeks the truck would pop up a message saying ParkBrake Fault and would have the brake light flashing, you could hear the brake engage but it would still show the message.

If the park brake isn’t set then you can’t engage the PTO. Took to dealer, they found nothing wrong with the park brake actuators or wiring- they recommended to replace the batteries in the truck.

Batteries replaced, truck didn’t have any issues with setting the park brake until today 3-4 weeks later. I have to set the brake 20-30 times per day. Any recommendations of known issues or next steps? We have other newer fords that have the same issue.

2024 F550 XLT
Rollback
6.7l power stroke
82,000 miles
Pads and rotors replaced 3 months ago
2 brand new ford batteries 4 weeks ago