WenmarOpen by Wenmar Pro

Service bulletins for the 2022 Ram 4500

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.

476 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
21-039-262026-05-20. Service bulletin. POWER TRAIN. 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. POWER TRAIN. 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
S25160000012025-10-29. Service bulletin. POWER TRAIN. Driveline Vibration. Prop Shaft Diagnostic Information.
21-041-252025-10-08. Service bulletin. POWER TRAIN. 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. POWER TRAIN. ID-25-15 (XW1) Aisin K1 Clutch/ Input Shaft Assembly - Select 2022 RAM Trucks (D2/DD/DP)
1077742025-10-08. Warranty extension. POWER TRAIN. D-25-18 (XW1) Aisin K1 Clutch/ Input Shaft Assembly - Select 2022 RAM Trucks (D2/DD/DP)
91006422025-08-13. Service bulletin. POWER TRAIN. 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.
03-001-25 REV. A2025-02-19. Service bulletin. POWER TRAIN; UNKNOWN OR OTHER. "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."
03-001-252025-02-11. Service bulletin. POWER TRAIN. "Clicking Noise While In 4WD ustomers may experience the following: ● Ratcheting, click, or clicking noise in 4WD while turning. his bulletin involves replacing the front driveshaft"
1023872025-01-04. Service bulletin. POWER TRAIN. SEAL - OUTPUT SHAFT
1023892025-01-04. Service bulletin. POWER TRAIN. SEAL - OUTPUT SHAFT
21-051-242024-10-01. Service bulletin. POWER TRAIN. "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 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. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure. ** "
1006812024-10-01. Warranty extension. UNKNOWN OR OTHER; ENGINE; POWER TRAIN. Warranty Bulletin D-24-16 (XR1) Urea Delivery Module – Select 2019 - 2022 RAM Trucks (DJ/D2/DD/DP)
1005992024-09-24. Warranty extension. POWER TRAIN. FCA Caribbean Warranty Bulletin ID-24-16 Rev. Announces the addition of the Rear Axle Assembly replacement for 2019 - 2024 RAM 3500 Cab Chassis (DD), RAM 4500/ 5500 Cab Chassis (DP), RAM 3500 Pickup (D2), RAM 2500 Pickup (DJ), RAM 1500 Pickup (DS) and RAM 1500 Pickup (DT) vehicles to the Powertrain Pre-Authorization program to ensure proper repair of Rear Axle Assembly failures and to assist in quality improvements. REV.A
1005952024-09-24. Warranty extension. POWER TRAIN. WARRANTY BULLETIN D-24-15 announces the addition of the Rear Axle Assembly replacement for 2019 - 2024 RAM 3500 Cab Chassis (DD), RAM 4500/ 5500 Cab Chassis (DP), RAM 3500 Pickup (D2), RAM 2500 Pickup (DJ), RAM 1500 Pickup (DS) and RAM 1500 Pickup (DT) vehicles to the Powertrain Pre-Authorization program for all dealers (Base, Plus & Premium) to ensure proper repair of Rear Axle Assembly failures and to assist in quality improvements. REV.A
932382023-10-30. Service bulletin. POWER TRAIN. AISIN K1 SNAP RING REPLACEMENT
21002232023-10-02. Service bulletin. POWER TRAIN. K1 Clutch Snap Ring Repair Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) has been set: ? P0731-00 - Gear 1 Shift Incorrect Ratio (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 drum snap ring and possibly the K1 input shaft drum subassembly.
Reference71A2023-10-02. Service bulletin. POWER TRAIN. Customer Satisfaction Notification 71A - Aisin Transmission
03003232023-08-21. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. Clicking Noise While In 4wd Ratcheting, Click, or Clicking noise in 4WD while turning. This bulletin involves replacing the front driveshaft.
S23030000022023-05-30. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. Ratchet Type Click, Clicking Noise Heard In Four Wheel Drive (4WD) While Turning.
18018232023-04-17. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. Flash: Powertrain Control Module (PCM) Updates Customer or technician may experience the following: ? **Power Take Off (PTO) disable to high engine oil temperature (DD and DP Cab Chassis only)**. ? Customer may complain of slow PTO idle ramp up. ? Message will appear ?Hot Oil? and exit high idle or PTO mode, when in high idle or PTO mode and running between 10-30 minutes (no load). ? High frequency exhaust noise at idle after cold start. This bulletin involves reprogramming the PCM with the latest available software.
21-002-232023-02-13. Service bulletin. POWER TRAIN; EXTERIOR LIGHTING. K1 Clutch Snap Ring Repair This bulletin involves replacing the K1 clutch drum snap ring and possibly the K1input shaft drum sub-assembly. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following DiagnosticTrouble Code (DTC) has been set: P0731-00 - Gear 1 Shift Incorrect Ratio. 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/out 1st - 4th gears. 5th and reversegears are still available.
S1623000028 Rev.2023-02-13. Service bulletin. VEHICLE SPEED CONTROL; BACK OVER PREVENTION; POWER TRAIN; VISIBILITY; PARKING BRAKE. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
91001222023-02-13. Service bulletin. POWER TRAIN. TRANSMISSION KIT For concerns of the transmission not shifting into/out of 1st through 4th gears or DTC P0731 refer to TSB 21-002-23 and do not order a complete transmission.
21030222023-01-23. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM. Transmission Control Module (TCM) Updates

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.