RC_Newb_1

I just recently purchased a new Team Associated RC10B4.1 Brushless RTR. I used it on the track the first day i got it. had no problems. Then today, I ran it outside on the cement just for fun. Had no problems at first, then my buggy started locking up the breaks when i released the throttle/put it in neutral. When i lift the car off the ground and run it and release the throttle the tires instantly stop as if the breaks were slammed. I went through my ESC settings and set everything to default. However, this has not fixed the issue. I have also tried multiple batteries and new batteries in my controller. Any suggestions? I am very new to this sort of thing so any information will help. Thank you!