Buick specific DTC OBD2 code: P1870 Transmission Component Slipping
Buick specific DTC OBD2 code: P1871 Undefined Gear Ratio
Buick specific DTC OBD2 code: P1873 TCC Stator Temp. Switch Circuit Low
Buick specific DTC OBD2 code: P1837 Kick-Down Switch Failed Short
Buick specific DTC OBD2 code: P1874 TCC Stator Temp. Switch Circuit High
Buick specific DTC OBD2 code: P1842 1-2 Shift Solenoid Circuit Low Voltage
Buick specific DTC OBD2 code: P1875 4WD Low Switch Circuit
Buick specific DTC OBD2 code: P1843 1-2 Shift Solenoid Circuit High Voltage
Buick specific DTC OBD2 code: P1884 TCC Enable/Shift Light Circuit
Buick specific DTC OBD2 code: P1844 Torque Reduction Signal Circuit Desired By TCM