I pulled out a 4" piece of metal (a broken off, side rail of my eye glasses) that had somehow slipped down under the 'shift knob boot' and into my gear selector unit. It was interfering with the shift lever and when I 'yanked' it out, the car jerked and defaulted to 2nd gear. All else works except she won't shift out of 2nd gear. My first thought was a new Gear Selector unit? Or, is there a 'computer module' that may have shorted, a fuse? Anyone?