Frame And Members problems of the 2010 Toyota Corolla

I purchased a 2010 Toyota Corolla last fall but have driven it very little. This is a dangerous car to drive. When driving on the highway the steering requires constant correction. It seems to continuously drift right or left and is very exhausting. I mentioned it to the service mgr. And he said decreasing the tire pressure a little may help. It did not. Toyota should recognize that this is a real and serious problem and address it before there reputation is further damaged.