2004 Cadillac CTS Owner's Manual - Page 194
2004 Cadillac CTS Manual
Page 194 highlights
Service Charging System This symbol appears with the Service Charging System message. Service Fuel System This symbol appears with the Service Fuel System message. This message will display when a problem with the charging system has been detected. Have your vehicle serviced at your dealership. The Powertrain Control Module (PCM) has detected a problem within the fuel system when this message appears. Have your vehicle serviced by your dealership. Service Electrical System This symbol appears with the Service Electrical System message. Service Idle Control This symbol appears with the Service Idle Control message. This message will display if an electrical problem has occurred within the Powertrain Control Module (PCM) or the ignition switch. Have your vehicle serviced by your dealership. 3-72 A problem with the idle control has occurred when this message displays. Have your vehicle serviced by your dealership.