# Service bulletin 1809923

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.

- Type: Service bulletin
- NHTSA id: 10248595
- Published by NHTSA: 2024\-01\-08
- Manufacturer's number: 1809923
- Manufacturer's date: 2023\-09\-01
- NHTSA component: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)

## NHTSA's summary

Flash: Powertrain Control Module \(PCM\) Update Customers may experience the following: ? Poor fuel economy. This bulletin involves reprogramming the PCM with the latest available software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248595-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10248595-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

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

## Vehicles listed

- 2023 RAM 1500

## Recalls for the same vehicles and component

- [24V413000](/recalls/nhtsa/24V413000.md), 2024-06-06: POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [S2309000012](/bulletins/10248869.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Mil\-On/Check Engine Lamp\-On with DTC P06DD set in the powertrain control module \(PCM\).
- [S2321000009](/bulletins/10248859.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Malfunction Indicator Lamp \(MIL\) Illuminated. Active Diagnostic Trouble Code \(DTC\) P1DB7\-00 ? Torque Converter Clutch Performance, Set.
- [S2321000009](/bulletins/10248583.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). MIL On with TCM P1DB7 Active
- [S2308000118](/bulletins/10248573.md), 2024-01-08, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Malfunction Indicator Lamp \(MIL\) on, P0052, P0152, O2 Sensor High, P0113 Intake Air Sensor \(IAT\)
- [S2321000009](/bulletins/10244422.md), 2023-10-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. MIL On with TCM P1DB7 Active
- [1808923](/bulletins/10243252.md), 2023-10-02, Service bulletin: ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). 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: ? P219A \- Bank 1 Air\-Fuel Ratio Imbalance. ? P1524 \- Oil Pressure Out Of Range \- Camshaft Advance/Retard Disabled. This bulletin involves reprogramming the PCM with the latest available software.
- [S2308000100](/bulletins/10243168.md), 2023-10-02, Service bulletin: STRUCTURE:BODY:HOOD; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Multiple Warning Lights, Sealer Between Ground Stud G908A And Eyelet
- [1808223](/bulletins/10242790.md), 2023-09-25, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: Powertrain Control Module \(PCM\) Updates Customers may experience the following: ? Cruise control inoperative. This bulletin involves reprogramming the PCM with the latest available software.
- [S2325000004](/bulletins/10236877.md), 2023-05-30, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM. Malfunction Indicator Lamp \(MIL\) Illuminated. Diagnostic Trouble Code \(DTC\) P2047 ? Reductant Injector 1/1 Circuit, Set.

JSON: [/v1/bulletins/10248595](/v1/bulletins/10248595)

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