Ried

Hi Folks We just purchased a used Highlander 2005, it says Four wheel drive on the back and has a button by the shifter that says ECT snow. Our problem is there is no info in our owners manual as to how to put the vehicle in 4X4, what speed can the ECT button be used, just how good of a 4x4 is this, mostly just snow and ice or off road use too. Thanks for your help, Ron