I believe I found the issue with the "steep grade" brake hold. Be sure the truck is level when performing a "Full Reboot" after installing or making changes with the Tazer. When I first installed it, I programmed it in my driveway, which as a small slope. When I remarried after the software update, and followed their directions... "keep foot off brakes and be on level ground", I now longer have the brake hold issue. Hope this helps someone in the future.