GMC specific DTC OBD2 code: P1584 Cruise Control Disabled
GMC specific DTC OBD2 code: P1585 Cruise Inhibit Control Circuit
GMC specific DTC OBD2 code: P1586 Cruise Control Brake Switch 2 Circuit
GMC specific DTC OBD2 code: P1587 Cruise Control Clutch Control Circuit Low
GMC specific DTC OBD2 code: P1588 Cruise Control Clutch Control Circuit High
GMC specific DTC OBD2 code: P1599 Engine Stall Or Near Stall Detected
GMC specific DTC OBD2 code: P1600 PCM Battery
GMC specific DTC OBD2 code: P1601 Serial Communication Problem With Devise 1
GMC specific DTC OBD2 code: P1602 Loss Of EBTCM Serial Data
GMC specific DTC OBD2 code: P1554 Cruise Engaged Circuit High Voltage