Air Brake Wheel Speed Sensor problems of the 2000 Saturn SL2

For 3 years I have been complaining to Saturn about my Saturn s series cars. One is an Sl2 the other is a Saturn wagon. In both cases when the weather has been either snowy or rainy or the roads have been slick when I try to turn the corner in the cars the brakes do not engage initally. I hear a clunking like noise which Saturn has yet to be able to reproduce & then my attempts to engage the brakes do not work as soon as they should. This has caused quite a bit of concern since I could be on the freeway when this happens or just driving my children to school & when I take a corner the brakes do not fully engage. I was first told that I needed to replace the brakes which I did & it still didn't make a difference beyond the first month after being repaired. I have been told it was the tires again replaced but problem still has come back. I was told the roads are just slick due to the first rains, snow etc of the season. I have taken it to Saturn who says they can't find the problem & although I have a history of complaining about it they have yet to offer a solution. Thankfully we have yet to have an accident since I have on occasion resorted to using the emergency brake in order to avoid a collision but since I saw the article about the gm trucks having the same problem I thought that maybe someone would listen to me & have the s series Saturns checked out as well. I showed a copy of the gm truck brake recall to my local Saturn & asked them to check this on my car & was told it wasn't necessary since it couldn't possibly be this as I don't have a truck. I have listed the most recent incident date & the number of failures for this current year.