Steering Wheel problems of the 2010 Toyota Tacoma

I purchased this vehicle brand new in may 2010. I saw a sticker in my door jam that notes modifications to my vehicle had been made to reduce the load carrying capacity. After doing some research I learned there was a recall in February 2010 that led to the modification. When I purchased my vehicle the salesman did not reveal to me there had been a recall or any changes had been made to my vehicle. I contacted the local dealership as well as the headquarters office on 12/08/2010, 01/06/2011, & 01/13/2011. They gave me a case number & told me after the 3rd attempt to call there was nothing else they could do. To this very date I still can not get anyone @ the local dealership or Toyota headquarters to return my call in reference to this. I am still not clear on what modifications were made & how it impacts my vehicle. I am not happy with the treatment I have received from Toyota and feel if they sold me a faulty vehicle that it should be taken back.