I bought a used 2003 toyota rav4 in 2006. shortly after i purchased the vehicle i noticed it did not stop very easily when i was driving on even mildly slipper roads. it also makes a horrific chattering noise when i depress the brakes (only with slippery conditions). i contacted the toyota dealership back in 2006 or 2007 where i purchased the vehicle and was told this was normal and that was how the brakes were designed. this braking issue has continued. i have even checked in to buying new tires (last fall and again this winter) and the mechanic said my tires were fine. i have sort of learned to live with this braking issue by making sure whenever there is even a small amount of snow that i slow down by downshifting to 2nd or 1st rather than using the brakes. *tr