One problem related to power train has been reported for the 2007 Cadillac STS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Cadillac STS based on all problems reported for the 2007 STS.
The vehicle experiences a shift-to-park malfunction in which it does not consistently recognize that it is in park, despite being physically shifted into the park position. When this occurs, the vehicle may fail to shut down properly or behaves as if it is not securely in park. The condition is reproducible and occurs during normal use. The issue first appeared in approximately mid-2024 at an estimated mileage of 80,000–85,000 miles and continues to occur. No crash or collision has occurred. However, the defect involves core powertrain and electrical systems and presents safety concerns related to reliable gear recognition and vehicle shutdown. The vehicle remains available for inspection upon request.