21-009-26

Flash: Transmission Control Module (TCM) Updates *Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):**
• P0979-00 - Shift Solenoid 3 Control Circuit Low.
• P0219-00 - Engine Overspeed Condition.
• P0731-00 - Gear 1 Shift Incorrect Ratio. **Customers may experience the following:
• Shift shudder and shift shock during wide open throttle, high clutch energy shift.** The following software update is also included:
• Improved high RPM in coasting situations for the 1-2 shift This bulletin involves reprogramming the TCM with the latest available software.