One problem related to wiring 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.
Vehicle failed to start three times since purchased new and had complete shut off at highway speeds once. Since this is an intermittent problem, Cadillac dealer advised me that they cannot diagnose without reproducing problem. This is an unsafe condition and an unacceptable response from Cadillac.