"Flash: Motor Control Processor B (MCP B) Updates 11A1 Customers must experience a Malfunction Indicator...

Bulletin number

08-021-25 REV. B

Component

Electrical system

Summary

"Flash: Motor Control Processor B (MCP B) Updates 11A1 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. The customer may comment on one or more of the following symptoms: ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park This bulletin involves reprogramming the IDCM, BPCM, MCP A, MCP B and the EVCU with the latest available software and then, if needed, performing a Wheel End Disconnect Position Learn routine."

Owners of these vehicles have filed 17 complaints in the electrical category.