I purchased a 2011 Buick Enclave in September, 201...

I purchased a 2011 Buick Enclave in September, 2011. After the purchase, the sales representative thoroughly explained all of the features and controls, and set up our Onstar account. After a few months we had a recurring, intermittent problem with the automatic door locking/unlocking system in the front passenger door. Ian Roberts, in the service department, and the service technician worked with GM engineers to fix the problem after numerous visits. We were frustrated but Ian was always calm and assured us that they would stay on the problem until it was fixed, and they did. I appreciate their persistence. Everyone at this dealership is friendly and treats you with respect.