Prior to creating a new thread, I searched on this topic to no avail. I have a 2006 DTS Performance with approximately 49,500 miles. About a week ago, the "Service Suspension " message appeared on the dash. A day or two before that I had the rear two tires changed, just supplying some background data. I was hoping someone can point me in the correct direction in regards to trouble shooting and eventually resolving issue. Thanks for any help in advance.