Flash: Powertrain Control Module (PCM) Updates
This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs have been set:P249E-00 - Closed Loop Reductant Injection Control At Limit - Flow Too High. P045E-00 - EGR -B- Control Stuck Open. P208B - Reductant Pump 1 Control Performance.
In addition customers may experience the following:Engine auto-stops during a shift of transfer case into neutral. Reduced oil change intervals. Speed Limiter distance unit type changes from MPH to KPH after key-off. Speed Limiter not enabled following a quick key-off/on sequence. Cruise control set-speed not displayed by cluster until minimum set speed achieved. Increased fan noise. Reduced durability of electric vacuum pumps under heavy stop/go driving conditions. Driveability complaints during an on-road DPF regeneration routine. Previous software releases requested the display of message "Particulate Filter Almost Full Keep The Vehicle Running" and will now request the message "Particulate Filter 100% Full Maintenance Required Contact Assistance". No auto-start after release of brake pedal.
