I got my 4X4 the day they came in from my LHS, got 3 batteries through it before the ESC went bad, acted like it was in setup mode, flashing red lights. Still had steering power but no juice to the motor. LHS had seen the same thing on a couple new 4X4 Slash's and found the problem to be a sticking power button on the ESC. You cannot get to the button from inside the case because of the waterproofing and I could not get a grip on the button with anything.
Traxxas support had me dribble shock oil on the button but that didn't work. So they sent a new ESC to the LHS and asked them to swap me. All of their stock had gone to swap for other bad ESCs and I have been waiting a week for my new one. Anyone else seeing this?