One problem related to service engine light on has been reported for the 2003 Cadillac CTS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Cadillac CTS based on all problems reported for the 2003 CTS.
The contact owns a 2003 Cadillac Cts. The service engine soon light illuminated and now the engine is running hot. The vehicle was taken to the dealer and they stated that antifreeze was leaking into the engine. The engine needed to be replaced at the cost of $7,000. The vehicle is currently parked and has not been repaired. The purchase date was unknown. The current mileage was 73,076 and failure mileage was 70,000.