Gap said it didn't work and our Autologic won't be able to until late 2019. Looks like the SDD Jag/LR tool is the only way to do rear brakes for now. Luckily the fronts will wear out first.

 

At the dealer it runs around $1000 per axle. Ie $2k for the whole set
Partly due to labor costs. Partly as they insist on replacing rotors every time

If you do it yourself / Indy and just do the pads (if rotors are still in spec) it's a fraction of that.