Chrysler Pacifica 2019 — technical service bulletin
Bulletin 18-004-21 · NHTSA communication 10215937 · issued Jan 16, 2021
Technical service bulletin
communication type
Electrical System
component
2019
model years
1
vehicle entries
Official summary
Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Technicians and/or customers may report the vehicle will not pass a state smog check due to permanent fault codes which will not clear. As a result, the vehicles are not eligible to be registered in certain states.Customers may also experience:Noise or vibration heard/felt during a gas engine start in park. This software release includes the following software enhancement:Corrections to allow the vehicle to clear the permanent fault codes. Four modules are required to
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.