18-006-16 REV. A

Flash: 3.6L and 5.7L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · **P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance. (5.7L only).** · P0456 - EVAP System Small Leak. · P1D73 - Active Grill Shutter (AGS) Performance. **In addition to the above DTCs, this software release also includes: · Improved shift quality during initial operations of a vehicle in cold ambient temperatures. (5.7L only). · Improved key-on engine-off oil pressure lamp behavior.**