I have a 2004 convertible. The top will not open completely. I have 93,000 miles

Thanks Bret, I did take it to the Volvo shop. Great service. It was evidently a sensor. It cost a pretty penny. New: Yesterday, my Check engine light came on. The engine runs great. Nothing abnormal noted--ie. no hesitation, no odd sounds, no smoke, so I wonder if you've had this happen. Could it likely be a notation to get routine service done?