yeah, ihave the same problem, i have a reissue grasshopper, and last night it worked fine, i turned it on, and drove it for like 5 secs, and the car stopped and started beeping...also when it was running, i let go of the throttle and it still kept on moving, i think i had a signal interference, and then it started beeping. i checked the receiver and it works perfectly. some one please help!!