GMC specific DTC OBD2 code: P1584 Cruise Control Disabled
GMC specific DTC OBD2 code: P1546 Air Conditioning (A/C) Clutch Feedback Circuit Low Voltage
GMC specific DTC OBD2 code: P1569 Cruise Servo Stroke High While Not In Cruise
GMC specific DTC OBD2 code: P1585 Cruise Inhibit Control Circuit
GMC specific DTC OBD2 code: P1547 A/C System Performance Degraded
GMC specific DTC OBD2 code: P1570 Cruise Control System-Traction Control Active
GMC specific DTC OBD2 code: P1586 Cruise Control Brake Switch 2 Circuit
GMC specific DTC OBD2 code: P1548 A/C Recirculation Circuit
GMC specific DTC OBD2 code: P1571 TCS PWM Circuit No Frequency
GMC specific DTC OBD2 code: P1587 Cruise Control Clutch Control Circuit Low