18-039-26

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs):
• P0300-00 - Multiple Cylinder Misfire - in Active or Stored status set during engine warm up period.
• P0301-00 - Cylinder 1 Misfire - in Active or Stored status set during engine warm up period.
• P0302-00 - Cylinder 2 Misfire - in Active or Stored status set during engine warm up period.
• P0303-00 - Cylinder 3 Misfire - in Active or Stored status set during engine warm up period.
• P0304-00 - Cylinder 4 Misfire -in Active or Stored status set during engine warm up period.
• P0305-00 - Cylinder 5 Misfire - in Active or Stored status set during engine warm up period.
• P0306-00 - Cylinder 6 Misfire - in Active or Stored status set during engine warm up period. Customers may also experience the following:
• A noticeable engine misfire, rough idle and/or noise (in the valvetrain). This bulletin involves reprogramming the PCM with the latest available software.