When plowing/blowing snow (this has happened 3 times now) snow gets jammed up under the forward/reverse pedals and jams them. When this happens, the tractor rapidly lurches forward and the only way to stop it is to turn the key off.
The first time this happened I almost hit our house. The second was in a cleared area, the third time I wasn't so lucky or fast enough and I ran into my hot tub. John Deere dealer basically showed very little concern when I spoke with him about it.
If you purchase a JD, make sure you have your tools ready. I've worked on tractors for the better part of 30 years and have never had to go back re-tightening bolts the way I've had to do with this tractor. Factory torqued and marked bolts back out of this thing on a regular basis. Keeping up with loose bolts will keep you very busy. The bolt concoction things they have holding the loader together are so sloppy already they'll have to be replaced this summer. This with only about 220 hours. Not good and very dangerous.
Bad battery from the start. As soon as the weather turned toward winter, and if I forgot to plug in the engine heater, it would be jump starting in the morning. That was the first winter, the second has required a jump start every time, even when the engine heater is plugged in.
One of the perks of buying something new is that you shouldn't have to be constantly working on it. Wouldn't feel so bad about putting so much time into an old tractor. Honestly, since I purchased this thing, BRAND NEW, I've been wishing I would have just gone ahead and purchased a decent used tractor.