One problem related to transmission not go into gear has been reported for the 2007 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Cadillac CTS based on all problems reported for the 2007 CTS.
2007 Cadillac Cts-43,000 miles-driving at 50 mph when car downshifted to second gear and would not change back to drive until I shifted to neutral and back to drive. Had this happened at 70 mph or had it shifted to low gear it could have caused a major accident. (did not press . On accelerator to cause the car to shift into another gear).