One problem related to automatic transmission has been reported for the 1999 Cadillac Deville. The most recently reported issues are listed below.
The day I bought my car 10 minutes after receiving my car the service engine light came on. After doing a computer diagnostic on it 2 days later come to find out its my transmission code p0741 torch converter stuck off. That car shouldn't of passed inspections with service engine light on or internal transmissions problems. Now im stuck with a crap car and out $4,500. 00 . I have tried to work this out with the dealer for 2 months. Now I wouldn't take make car back to him if u paid me. Hes a crook and doesnt properly repair cars. Over the past 2 months I ve had to replace a exhaust a cv joint stabalizer link turn signal flasher . The main problem the transmission which im gonna have to pay for outta my pocket close to 2000. 00. While the dealer gets away with it.