Before you panic and spend some cash, check your owners manual (2004 Coupe, page 76). If the battery has been disconnected or dead then it is possible that you need to reset the light. I would try this first. Start the car and while parked and the wheel in the center position turn the steering wheel all the way to the left and then all the way back to the right and then back to center and the light should go out. This resets the sensors, if the light comes back on then get the dealer to check it out.
I had disconnected my battery to check a wiring problem and the light was on when I hooked everything back up. I thought I messed something up, looked in the manual and this is normal.

Good Luck,
CobraMike