Yes I have had this issue on a steep downhill off-road.. same resolution.. I also over-cooked the brakes and caused an audible alarm.. Not sure which things caused which, but the lesson was to keep it in a lower gear and/or use DAC.
That interior is exactly what I want to do. The Goose Gear site doesn't have anything listed for the 6G Hybrid.. Do you have a pre-production version or something?