18-044-15

Flash: Power Control Module Software Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The customers may experience one or all of the following: - Customer may experience a "detonation" type of noise while accelerating or at idle. - Customers may experience Cruise Control lock out (inoperative) after several ?+? cruise button inputs attempting to increase Cruise Set Speed. Turning the ignition off and back on will clear the condition. - MIL light illuminates and DTC P2463-00 ?Diesel Particulate Filter- Soot Accumulation? set in the PCM. The software is also being released to improve A/C compressor relay duty cycle operation to prevent ignition off battery draw.