I have the same issue, set it to 80% stops at 79%, been that way now for several months, can't get it to 80%. Also the adjustment is rather course, e.g. I can't set it to 81% but can set it to 84%, did that. parked it in the garage with 80% left, sat for 3 days and now it says 77%. Car wasn't plugged and hasn't moved.