Traction control light on

I have a 2000 cavalier, that recently the trac off light comes on, yet goes off when I shut the car off, upon putting the car back in drive it seems to engage hard, then runs fine. Do you think it could be a sensor in the traction system?

Since the trac off light incident the car now is difficult to start takes atleast two tries, then last night after filling up with gas the check gauges light came on and my fuel gauge read empty, but only for a moment, could it be a sensor? The trac off light only comes on occasionally.

It seems I have the same problem lfranklinhgg had.
I have a 2000 cavalier that recently the trac off light comes on, yet goes off when I shut the car off, upon putting the car back in drive it seems to engage hard and has the terrible sound from bottom of the car, and then it runs fine. We took it to different small shops, when they checked no codes came on. Do you think it could be a sensor in the traction system?

All the ABS Light, Service Light, and Track off lights come on together. Do you think it could be a sensor in the traction system? Anybody had the similar problem:

It seems I have the same problem lfranklinhgg had.
I have a 2000 cavalier that recently the trac off light comes on, yet goes off when I shut the car off, upon putting the car back in drive it seems to engage hard and has the terrible sound from bottom of the car, and then it runs fine. We took it to different small shops, when they checked no codes came on.