This bulletin applies to 2019 Chrysler Pacifica vehicles built on or before June 18, 2019, and equipped with a 3.6L V6, 24-valve VVT engine. Customers may experience a MIL on. The technician may find various DTCs set:
- P0456 (EVAP system small leak)
- P258B (electronic vacuum pump performance)
- P06EF (engine restart performance)
- P057B (brake pedal position sensor circuit performance)
The engine may also exhibit a rough idle, and the engine start stop (ESS) may be disabled during an auto-start, requiring the driver to restart the engine.
Reprogram the PCM with the latest software. The expected completion time for the flash download portion of this procedure is approximately 6 minutes.