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Service bulletin 1809323

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10243256
Published by NHTSA2023-10-02
Manufacturer's number1809323
Manufacturer's date2023-08-16
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0455 - EVAP System Large Leak. ? P0456 - EVAP System Small Leak. ? P0440 - General Evap System Failure. ? P0441 - EVAP Purge System Performance. This bulletin involves reprogramming the PCM with the latest available software.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Transmission and driveline, Automatic transmission, Transmission control module

Trouble codes named

P0440, P0441, P0455, P0456

Vehicles listed
DODGE CHARGER2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
18094232023-10-02. Service bulletin. Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ? P0455 - EVAP System Large Leak. ? P0456 - EVAP System Small Leak. ? P0440 - General Evap System Failure. ? P0441 - EVAP Purge System Performance. This bulletin involves reprogramming the PCM with the latest available software.
S22210000022022-10-17. Service bulletin. 8HP70 Automatic Transmissions Clunk Or Knock Type Noise From The Driveline.
90045092022-05-31. Service bulletin. Oil Filter If a Mopar Oil Filter is not available, use a filter that meets or exceeds USCAR36 specification and is compatible with semi and full synthetic oils. Recommended Brands: Wix, Purolator, and NapaGold