car goes into trans failsafe mode does not stay in third or fourth shifts through all of the gears and downshifts through all as well. It shifts relatively hard. Sort of a luck of the draw type time yes with tfp message, next time no message...crap shoot. read a lot here...battery sticker says 2006 so battery is aged. standing voltage is a little low. Any help...greatly appreciated. when light is not shifts as smooth as glass.