# Service bulletin 2101323

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: 10236952
- Published by NHTSA: 2023\-05\-30
- Manufacturer's number: 2101323
- Manufacturer's date: 2023\-04\-25
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Transmission Control Module \(TCM\) Updates Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\) has been set. ? P0729\-00 \- Gear 6 Shift Incorrect Ratio. Other software enhancement: ? Improved vehicle downshift and coast down performance. This bulletin involves reprogramming the TCM with the latest available software.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236952-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10236952-9999.pdf)

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

## Components

Electrical system, Transmission and driveline

## Trouble codes named

P0729

## Vehicles listed

- 2021 DODGE CHARGER

## Other bulletins for the same vehicles and component

- [S2621000004](/bulletins/11038329.md), 2026-10-07, Service bulletin: POWER TRAIN. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines \(850RE Transmission Only\)
- [S2621000003 REV.A](/bulletins/11030138.md), 2026-03-18, Service bulletin: POWER TRAIN. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75\-PHEV, 8HP75\-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
- [S2608000010](/bulletins/11030042.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. Active Diagnostic Trouble Code \(DTC\) B1A10\-00, B1A11\-00, B1A12\- 00, B1A13\-00\-, B1A14\-00, B1A15\-00, B1A16\-00, and B1A17\-00 in The Radio Frequency Hub \(RFH\)
- [110608](/bulletins/11030022.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. SPEAKER \- NONE
- [S1408000384 REV.I](/bulletins/11028904.md), 2026-02-19, Service bulletin: ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor \(IBS\) State of Charge \(SOC\) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes \(DTCs\), or Battery Warning Lamp On
- [9100735](/bulletins/11026651.md), 2025-12-17, Service bulletin: ELECTRICAL SYSTEM. Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only
- [S2508000102](/bulletins/11025515.md), 2025-11-13, Service bulletin: ELECTRICAL SYSTEM. Intermittent Uconnect Box Requires Service Message. TBM Setting Stored Or Pending DTCs B22A9, B1560, B1561, B1562
- [S258A000017](/bulletins/11021581.md), 2025-08-06, Service bulletin: ELECTRICAL SYSTEM. Door speaker Inoperative or No Sound
- [18\-038\-25 REV. A](/bulletins/11020839.md), 2025-07-23, Service bulletin: ELECTRICAL SYSTEM. Flash: Powertrain Control Module \(PCM\) Updates Customers may experience the following: ● Low speed stall or engine delay following a long engine idle time in hot ambient temperatures with the engine running on regular unleaded fuel. If the engine were to stall, the engine can immediately be restarted with an ignition cycle. This bulletin involves reprogramming the PCM with the latest available software.
- [21\-009\-25 REV. C](/bulletins/11020636.md), 2025-07-09, Service bulletin: POWER TRAIN. 850RE D Clutch Repair Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must have at least 11,265 km \(7,000 mi.\) and exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\): ● P0733\-00 \- Gear 3 Shift Incorrect Ratio. ● P1DA8\-00 \- Incorrect Gear Ratio Clutch A B or D Defective. ● P1D92\-00 \- Incorrect Gear Ratio \- Clutch 4 Defective. Customers may also comment on one or more of the following: ● Transmission slips when shifting. ● Vehicle will not move in reverse. ● Vehicle will not shift higher than third gear This bulletin involves replacing the D clutch.

JSON: [/v1/bulletins/10236952](/v1/bulletins/10236952)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%202101323&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10236952&vehicle=Service%20bulletin%202101323)