The factory floor mats have eyelets which engage hooks in the floor,
>holding them in a stable position. They dont move around this way. >
>If you dont have the proper floor mats, they can ride up under the >brake pedals, etc.
>
>AFAIK, that is what this is all about.
>
>I bought some aftermarket floor mats to protect my original carpeting,
>and find they indeed ride up and cause this problem. No problem at
>all with the carpeting that came with our cars.
The little plastic hooks for my floor mats broke. A couple of pieces of Velcro glued to the carpet and bottom of the mats worked just as well.
Skip