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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

Bulletins, newest first
08162232023-09-25. Service bulletin. ELECTRICAL SYSTEM. Flash: Global Telematics Box Module (TBM) Update to 5.39.1 The customer may experience the one or more of the following: ? Uconnect Box Message at Startup. ? Uconnect Box Error Or Requires Service Message. ? Uconnect Mobile App trunk status showing as closed when trunk is open. ? Diagnostic Trouble Codes (DTCs) for Electronic Control Modules (ECUs) won?t be shown to customer through the Vehicle Health alert (Mobile App or email). The TBM software will be updated from 5.25 to 5.39.1.
Y432023-09-25. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Emissions Recall Y43 Particulate Matter Sensor
S21090000112023-09-25. Service bulletin. ENGINE AND ENGINE COOLING. Squeak, Chirp, Or Tick Noise From The Serpentine Belt Area. Additional Diagnostics.
S238A0000342023-09-25. Service bulletin. ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS:ACCESORY POWER OUTLET/JACK/PORT/USB/SAE/CIGARETTE LIGHTER. USB Hub In-Operable
S238A0000302023-09-25. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT. Apple CarPlay Not Working Or Disconnecting After Updating To iOS 16.3.1 Or Above
91001962023-09-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Lubrication and Maintenance Fluids If MOPAR fluids and chemicals are not readily available, please review Service Library for specifications so a suitable alternative can be used
91001602023-08-21. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. Power wndow switch passenger
24006232023-08-21. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. A/C Diagnostic LOP Change (Except Alfa Romeo Vehicles)
08158232023-08-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Over The Air Update to T25.48 Software Version ? Unable to exit FamCam. ? Electric vehicle pages inoperable. ? Ambient Light Setting inoperable. ? Radio reset (Rearview camera functions normally). ? Voice Recognition (VR) inoperable. ? Scheduled cabin cooling inoperable. ? Unable to exit electric vehicle page. ? Audio sources inoperable. ? Wireless CarPlayT inoperable. ? Setting preferences not saved on correct profile. ? Audio loss. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from S26.17 to T25.48. NOTE: The National campaign for this FOTA update launched July 17, 2023.
23080232023-08-21. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM. Intermittently Poor HVAC Performance Customers may comment on the following: ? Intermittently the HVAC blow feel/output maybe reduced. This issue only happens in temperature that are just below freezing and snowing. This bulletin involves removing the right side rubber flaps from the cowl baffles.
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.
08142232023-08-21. Service bulletin. EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS. Radio Over The Air Update to T25.50 Software Version
S23230000212023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Clunk Noise From Front End Driving Between 15 And 35 MPH And When Decelerating. C0604- Active Air Dam Control Performance
08130232023-07-31. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE. Telematics Box Module (TBM) Over The Air Software Update to 5.39.1 Customers may experience one or more of the following: ? Uconnect Box Message at Startup. ? Uconnect Box Error Or Requires Service Message. ? Connectivity: Uconnect Mobile App trunk status showing as closed when trunk is open. ? Connectivity: Diagnostic Trouble Codes (DTCs) for Electronic Control Modules (ECUs) won?t be shown to customer through the Vehicle Health alert (Mobile app or email). This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from 5.13 to 5.25 to 5.39.1 (DS) and 5.25 to 5.39.1 (DJ, DD, D2, DP, DF). NOTE: The (DS) TBM software update will be a two-step update. NOTE: The national launch for the FOTA is expected to begin June 16, 2023.
08079232023-07-31. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Over The Air Uconnect R1L Radio Software Update to R160 ? None available at this time. This bulletin supersedes Technical Service Bulletin (TSB) 08-079-23, date of issue April 4, 2023, which should be removed from your files. This is a complete revision and no asterisks have been used to highlight revisions.
07007232023-07-31. Service bulletin. ENGINE AND ENGINE COOLING. Water Quality When Mixed With Engine Coolant
08105232023-07-31. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS:ACCESORY POWER OUTLET/JACK/PORT/USB/SAE/CIGARETTE LIGHTER. Radio S26.17 USB Software Update The customer may describe one or more of the following: ? Blank screen (Rear view camera is not affected and will still function normally). ? Battery drain. ? Radio resets (Rear view camera will still function normally). ? Wireless connectivity device disconnect. ? CarPlayT icon does not appear in device manager. ? Climate icon missing. ? Audio disruptions. ? SXMT inoperative. ? Audio muted. ? Passenger screen blank. ? Passenger screen apps missing. ? Missing profiles icon. ? Instrument Panel Cluster (IPC) displays incorrect audio source. ? Radio is slow to respond. ? Trailer tire pressure configurations deleted. ? Steering wheel controls skipping SXMT channels. ? Recent calls not displayed. ? Phone audio playing with ignition off. ? SXM radio application missing (North America Only). ? Navigation screen is blank. ? Media page screen is frozen. ? With forward camera, ?Check Entire Surroundings? verbiage is
91001422023-05-30. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES. Mirror
Newsletter2023-05-30. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. FCA CARIBBEAN WARRANTY OPERATIONS NEWSLETTER
08105232023-05-30. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio S26.17 USB Software Update The customer may describe one or more of the following: ? **Blank screen (Rear view camera is not affected and will still function normally). ? Battery drain. ? Radio resets (Rear view camera will still function normally). ? Wireless connectivity device disconnect. ? CarPlayT icon does not appear in device manager. ? Climate icon missing. ? Audio disruptions. ? SXMT inoperative. ? Audio muted. ? Passenger screen blank. ? Passenger screen apps missing. ? Missing profiles icon. ? Instrument Panel Cluster (IPC) displays incorrect audio source. ? Radio is slow to respond. ? Trailer tire pressure configurations deleted. ? Steering wheel controls skipping SXMT channels. ? Recent calls not displayed. ? Phone audio playing with ignition off.** ? SXM radio application missing (North America Only). ? Navigation screen is blank. ? Media page screen is frozen. ? With forward camera, ?Check Entire Surroundings? verbiage is covering other buttons. ? Weather images are oversized. ? SXM 360L / Internet stations not available. **The following improvements are also included with this update: ? Apple CarPlayT and Android AutoT improvements. ? Voice Recognition (VR) command improvements. ? Uconnect phone improvements. ? FOTA improvements. ? Passenger screen camera app improvements. ? Icon size/layout improvements.** This bulletin involves inspecting the software level and updating the software to S26.17.
14003232023-05-30. Service bulletin. ELECTRICAL SYSTEM. Diesel Exhaust Fluid (DEF) Fluid Freezing 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: ? P203E-00 - Reductant Level Sensor 1 Circuit Intermittent-Erratic. This bulletin involves replacing the urea delivery module and grade vent valve and updating the Dosing Control Unit (DCU) software.
18048232023-05-30. Service bulletin. EQUIPMENT; ENGINE AND ENGINE COOLING. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
08082232023-05-30. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. UPD UFD UBD UED UBC UEC Radio Enhancements None available at this time.
08079232023-05-30. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM. Radio Over The Air Uconnect R1L Radio Software Update to R160 Customers may experience one or more of the following: ? Media source changes to AM after the theme mode is changed (ex. headlights on - dark mode). ? Audio cuts out at volume levels 30 or above. ? System switches to Wireless after key cycle, profile change, or theme mode change. ? Wireless phone interface freezes after user accepts incoming call when in a conference call. ? Wi-Fi Hotspot gets disabled automatically when turning the vehicle ignition off for a long period. ? Loss of SXM/AM/FM presets. ? Blank Screen when Home Screen Loading. (rear view camera operation not affected). ? Radio Reboot. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The radio software will be updated from 136.10.04, 139.01.53 and 145.00.15 to R160. NOTE: The national launch for the FOTA is expected to begin April 18, 2023.
S22080000802023-05-30. Service bulletin. ELECTRICAL SYSTEM. Ambient Air Temperature Missing, Malfunction Indicator Lamp (MIL) Lamp On, Diagnostic Trouble Code (DTC) P0070-15 Ambient Air Temperature Sensor Circuit-Circuit Short to Battery or Open, P0073 Ambient Air Temperature Sensor Circuit High

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