Gonna ask a question . When you put the gear selector in park, you rv automatically sets a parking brake? :question: And when you put the gear selector in gear its suppose to automatically release the parking brake.
Poppa Correct This is an option oon chev and ford chassis over 16,500 GVWL. I believe it's a fuse out under the hood. I'll be checking that this morning. We were taking it out for the 1st time Monday--Wed. Right now stuck in the driveway.
Auto Park update
In neutral the manual parking brake can be applied. In park -a series of relays and switches are activated turning on a motor. the motor pulls a cable on a brake drum located between the transmission and the drive shaft. I had to cut a short cable at the drum to release the brake. cost of repair --a little over 1,000 dollars. splitting with the dealer. still ouch.