2004 Cadillac CTS Owner's Manual - Page 198
2004 Cadillac CTS Manual
Page 198 highlights
Service Transmission This symbol appears with the Service Transmission message. Starting Disabled - Remove Key This symbol appears with the Starting Disabled - Remove Key message. There is a problem with the transmission of your vehicle. Have your vehicle serviced at your dealership. Service Vehicle Soon This symbol appears with the Service Vehicle Soon message. This message will appear when the vehicle theft-deterrent system detects that an improper ignition key is being used to try to start the vehicle. Check the ignition key for damage. If it is damaged, it may need to be replaced. If it is not damaged, remove the key and try to start the vehicle again. If it still does not start, try another ignition key or have your vehicle serviced at your dealership. This message is displayed when a non-emissions related powertrain malfunction occurs. Have your vehicle serviced at your dealership as soon as possible. 3-76