Gauges

What would cause the gauges in my 2012 Tundra to go crazy while I'm driving down the road all the lights are come on on the dash the speedometer o bounce back and forth but it doesn't affect the performance of the truck truck still runs good. All the lights on the dash come on and speedometer gets a little Haywire what would cause that or what would I be able to disconnect the battery to try and reset it or is this something Imma have to take to the shop. But it doesn't do it when i get going at high speed