I'm new to this forum...and am trying to find out why my 2006 Lexus RX 330 AWD performed so poorly in the snow yesterday. I approached a 4-way stop very slowly....and heard this wierd noise after applying the brakes (antilock brakes??)...and continued...very slowly...through the 4-way stop. I finally was able to stop at the other side of the intersection. This was snow...not ice. My tires are Michelin M&S that came w/the vehicle. My previous vehicle was a SUV and I've never experienced this!