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Service bulletin 9100202

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 id10243098
Published by NHTSA2023-10-02
Manufacturer's number9100202
Manufacturer's date2023-08-17
NHTSA componentPOWER TRAIN

NHTSA's summary

PUMP ASSY AND REACTION SHAFT 2023 DJ & D2: If DTCs P0944 and P0868 are present, do not replace the torque converter or internal transmission components. Refer to SOL Publication S2321000007.

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

Trouble codes named

P0868, P0944

Vehicles listed
RAM 25002023
RAM 35002023

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

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.
S25160000012025-10-29. Service bulletin. Driveline Vibration. Prop Shaft Diagnostic Information.
91006422025-08-13. Service bulletin. When customer complaint is related to inoperative 4 Wheel Drive shifter, loss of 4WD function and/or 4WD related MIL please reference SOL Case #S2508000062 prior to replacement of Transfer Case shift motor.
S25080000622025-08-06. Service bulletin. Unresponsive 4WD Shifter, Service 4WD Light Illuminated. ABS And/Or Traction Control Lights May Also Be On
S25030000032025-05-28. Service bulletin. Rear Axle Locker Inoperative, Service Axle Locker Message Displayed. Discussion: Some customers may experience a, inop rear axle locker, and Service Axle Locker message. After further investigation, the technician may not find any diagnostic trouble codes (DTCs) set. However, intermittently, they may find the following DTCs set in the Drivetrain Control Module (DTCM). • C141C-11 Rear Differential Control Circuit Short To Ground. • C141C-13 Rear Differential Control Circuit Open. If the technician is working on a vehicle with the above condition, please perform the repair procedure below. Repair Procedure: 1. Remove the rear differential cover. 2. Inspect the e-locker actuator wiring harness for damage due to contact with the differential.
03-001-25 REV. A2025-02-19. Service bulletin. "Clicking Noise While In 4WD Customers may experience the following: ● Ratcheting, click, or clicking noise in 4WD while turning. This bulletin involves replacing the front driveshaft."