Help me understand my Emaxx

[turbo4]

I've noticed a few times that my emaxx will suddenly go into reverse on its own. the first time it might just glitch backwards. Then it will get to where it wants to creep slowly backwards steadily. Today I was hauling grass across the yard when it applied reverse on its own and sent the truck in to a tumbling fury = / What is going on?

Could this be the LVC kicking in(I have a dimension engineering one)? Is this a sign the tx batts are getting weak?. Im using the stock traxxas tx and the light is still bright red, not sure if it changes on low batts or not.

It seems to happen only when my batteries get down to 7.4-7.5v.