ABS Light comes on till the engine reaches normal operating temp....Any idea why????

Have you had the bcm scanned to see if there are any codes set?

no codes on the computer, abs light only comming on when I first start using the vehicle, it will like get stuck in first gear for the first few second and once it shifts it disapear and will not do it no more

Sorry I cannot think of any that would cause a problem like that, have you talked to a gm dealer to see if they have seen any problems like this one?

have not talk to the dealer yet. that would be my next step