There is zero load on that motor. I'm not an expert on the epb but I would checking that everything is connected properly, no broken cables etc. It won't just be going backwards because it feels like it, it will be operating this way because a...
D3 and D4 are very heavy on brakes and being autos makes them very likely to warp discs. Get into the habit of coming off the brakes soon as you can when you've just had a full stop, even if it's just to let the car creep a few feet to get the...