Alex, The brakes should release when the accelerator is depressed.
At some point I read that Hill Start Assist is technically part of the Stabiltrak stability control system.
The next part of my post is speculative and I have NOT verified if this is true, however it seems possible that you might be able to disable HSA by turning off the Stabilitrak.
It’s too flat in the Indy area for me to test that today. Perhaps Dutch can try and report back?
