I was not towing it when the brakes locked up. I was driving the GMC Canyon home from work when it happened. It was the day after I had towed.
I think I had a couple inches of slack. I just did a short test run on Sunday (maybe 6 miles or so). The led indicator light seemed to work fine, the Canyon towed well and everything seemed good. I use a 6" riser to make the rv and canyon level within 2" of each other.
Yes I do need to disconnect the battery (and I did) before towing. I have the towing instructions printed out and followed them exactly. It involves placing the transfer case in neutral, placing tranny in park, and leaving the key in accessory mode so the steering wheel doesn't lock.
I am worried about the dealer immediately claiming it is the ready brake, and not look much farther. But I do have an appointment on Thursday to have them take a look.
