Hello, my name is Joe
There are several possible causes for the auto-park brake warning to come on with the Workhorse motorhome chassis.
There may be a hydraulic fluid loss, a loss of pressure, or a component failure.
Or the park brake actuator cable may need adjustment.
It is also possible that there can be collateral damage from driving the vehicle while the auto-park is malfunctioning.
Releasing the park brake actuator cable should prevent additional risk of burning up the park brake shoes.
There are two ways to release the auto-park cable to allow the motorhome to be driven:
Loosen the long 3/4" nut on the actuator cable , unthread from the actuator cylinder rod.
Be careful , and make sure the wheels are properly chocked !
The vehicle will roll freely ; once the brake is released.
Please let me know if you still have any concerns on this issue.