Two problems related to service engine light on have been reported for the 2003 Cadillac Deville. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Cadillac Deville based on all problems reported for the 2003 Deville.
Tl-the contact owns a 2003 Cadillac Deville. The contact stated that the service engine light was illuminated. The vehicle was taken to the local dealer aarowhead Cadillac 8310 w bell rd, glendale, az 85308 (623) 455-6910 where informed that the torque converter needed to be replaced. The vehicle was not repaired. The manufacturer was contacted however no further assistance was provided. The failure mileage was 79,000. VIN: not available. Ap.
I was driving at approximately 60 mhp on i77 north - without notice of any kind it became very difficult to steer my vehicle and I lost control as well as all power & acceleration. All of this happened so fast but I looked down and noticed several dash board/warning lights on. These lights normally only go on for a second or so when starting the car. Having no power or acceleration I was able to navigate my car to the side of the road with out an accident but immediately noticed that my ignition was already turned off. The ignition key was not all the off - just in the position as if I was parked and wanted to listen to the radio. Once pulled over I placed the car in "park" turned the key all the way off and restarted the car. It started right up. However, now both my "service engine soon light" and "air bag" light stays illuminated at all times. They do not go out once the car is started. I am not able to notice any difference in the performance or handling at this time but am concerned with the lights remaining on at all times when driving as well as the safety of the air bags.