Having a problem with my 2004 Grand Prix GTP--parked the car last night, everything was perfect, today, the car will not move! Can't get the car to respond in drive or reverse. The car is not making any noise, any sounds, or giving any signs it is attempting to move, just will not move. I have checked the fluid level and it appears to be at the right level, so I am left wondering what this could be? Doesn't seem like a bad transmission because it worked perfect until yesterday, the fluid has its right color and level, so I am just confused to what this could be.