I just bought a used 2014 800 zforce ex, it has only 300 miles on it and more than half of that was done by plowing. I have only used it about 5 times mostly on roads and trails in 6-12" snow and 3 of those times the accelerator gets stuck after about 10 minutes of riding. You can still press the gas peddle like normal, but it doesn't do anything and it just continues to accelerate. Turning it off and on doesn't fix the problem. I've had to tow it back to my house. It's been cold here, around 0-10 degrees fahrenheit, and after putting it back in my heated garage it will work fine again. The guy says he will take it back, but he said he has not seen that before. I wanted to check here before giving it back to him, because I really like the machine and want to keep it if there is a fix. Has anyone had this happen before? Thanks.