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Service bulletin 101094

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 id11010147
Published by NHTSA2024-11-06
Manufacturer's number101094
Manufacturer's date2024-10-29
NHTSA componentPOWER TRAIN
Manufacturer's systemTRANSMISSION KIT

NHTSA's summary

TRANSMISSION KIT - WITH TORQUE CONVERTER

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

Transmission and driveline

Vehicles listed
RAM 25002020, 2021, 2022, 2023, 2024
RAM 35002020, 2021, 2022, 2023, 2024

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

Recalls for the same vehicles and component
20262252026-05-07. Powertrain
26V2880002026-05-07. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
20243252024-06-06. Powertrain
24V4130002024-06-06. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION
20226442022-11-10. Powertrain
22V8350002022-11-10. POWER TRAIN:AUTOMATIC TRANSMISSION
20200252020-01-24. Powertrain
20V0430002020-01-24. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
9100841 Rev 12026-07-02. Service bulletin. If customer concern diagnosis leads to suspect u-joint issue with the prop shaft, u-joint service kit should be utilized to fix concern. Prop shaft replacement would not be required.
91008412026-07-02. Service bulletin. HD Front and Rear Prop Shafts Increase U-Joint Usage If customer concern diagnosis leads to suspect u-joint issue or failure with the prop shaft, u-joint service kit should be utilized to fix concern. Prop shaft replacement would not be required.
21-039-262026-05-20. Service bulletin. Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift Incorrect Ratio (This DTC will set during a key cycle and shifting into Drive). Customers must also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure
21-039-262026-05-13. Service bulletin. Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift Incorrect Ratio (This DTC will set during a key cycle and shifting into Drive). Customers must also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure
S2621000003 REV.A2026-03-18. Service bulletin. 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.
21-012-25 REV. E2025-11-13. Service bulletin. Not applicable to vehicles built for US market. Rear Selective Thrust Washer Failure Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0218-00 - Transmission High Temperature Operation Activated. ● P0716-00 - Input Speed Sensor 1 Circuit Performance. ● P0729-00 - Gear 6 Shift Incorrect Ratio. ● P0731-00 - Gear 1 Shift Incorrect Ratio. ● P0732-00 - Gear 2 Shift Incorrect Ratio. ● P0733-00 - Gear 3 Shift Incorrect Ratio. ● P0734-00 - Gear 4 Shift Incorrect Ratio. ● P0735-00 - Gear 5 Shift Incorrect Ratio. ● P0841-00 - Transmission Fluid Pressure Sensor/Switch 1 Circuit Performance. ● P0868-00 - Transmission Fluid Pressure Low. ● P0871-00 - Transmission Fluid Pressure Sensor/Switch "C" Circuit Range/Performance. ● P0876-00 - Transmission Fluid Pressure Sensor/Switch "D" Circuit Range/Performance. ● P0944-00 - Loss Of Hydraulic Pump Prime. Customers may also comment on one or more of the following: ● Hard shifting into gear. ● Vehicle enters into limp home mode This bulletin involves checking for DTCs and possibly replacing the transmission.
S25160000012025-10-29. Service bulletin. Driveline Vibration. Prop Shaft Diagnostic Information.
21-041-252025-10-08. Service bulletin. Aisin K1 Clutch/Input Shaft Assembly Replacement XW1 Warranty Extension Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift Incorrect Ratio. NOTE: This DTC will set during a key cycle and shifting into Drive. Customers may also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available. This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly.
1077752025-10-08. Warranty extension. ID-25-15 (XW1) Aisin K1 Clutch/ Input Shaft Assembly - Select 2022 RAM Trucks (D2/DD/DP)
1077742025-10-08. Warranty extension. D-25-18 (XW1) Aisin K1 Clutch/ Input Shaft Assembly - Select 2022 RAM Trucks (D2/DD/DP)