GMC specific DTC OBD2 code: P1564 Cruise Control System – Vehicle Accel Too High
GMC specific DTC OBD2 code: P1563 Cruise Vehicle Speed/Set Speed Difference Too High
GMC specific DTC OBD2 code: P1562 Cruise Vacuum Solenoid
GMC specific DTC OBD2 code: P1561 Cruise Vent Solenoid
GMC specific DTC OBD2 code: P1560 Cruise Control System-Transaxle Not In Drive
GMC specific DTC OBD2 code: P1559 Cruise Control Power Mangement Mode
GMC specific DTC OBD2 code: P1558 Cruise Control Servo Indicates Low
GMC specific DTC OBD2 code: P1555 Electronic Variable Orifice Output
GMC specific DTC OBD2 code: P1554 Cruise Engaged Circuit High Voltage
GMC specific DTC OBD2 code: P1548 A/C Recirculation Circuit