I have just bought a 2010 xr6 turbo ex highway patrol. The car great but it seems the traction control won't turn off. I have held in the dsc button for 3 seconds so the light comes on,on the dash,but it still limits power the same if the light is on or off. Does this sound normal? Someone has suggested that police cars have been modified so you can't turn the traction control completely off. This is really ruining my fun ?