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Service bulletins for the 2021 Ram 2500

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.

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

By type

By component

By trouble code

By topic

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
S22230000632022-11-07. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. Ambient Temperature Sensor Servicing.
90044702022-11-07. Service bulletin. STRUCTURE:BODY:BUMPERS; ELECTRICAL SYSTEM:WIRING:CONNECTORS/PLUGS/RECEPTACLES; TRAILER HITCHES. CONNECTOR Trailer Tow,WIRING Trailer Tow,CONNECTOR 7 Way,WIRING Rear Bumper If the connector or wiring is physically damaged, burned, melted or corroded, prior to replacing the part, please contact FCA Redacted Content If no response in 15 minutes, proceed with repair. Please send pictures of the failed part to FCA Redacted Content
S228A0000172022-10-31. Service bulletin. ELECTRICAL SYSTEM. Battery Drain Suspected or "Identified" From USB or Media Hub
S2208000080RevA2022-10-31. 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
S228A0000172022-10-31. Service bulletin. ELECTRICAL SYSTEM. Battery Drain Suspected or "Identified" From USB or Media Hub
S20080001862022-10-17. Service bulletin. ELECTRICAL SYSTEM. Engine Control Module (ECM) Flash Failure, Diagnostic Trouble Code (DTC) U1601 ? ECU Application Software Code 1 Missing Or Corrupted
S20080001722022-10-17. Service bulletin. ELECTRICAL SYSTEM. Radio Screen Flickering When Using Apple CarPlay Or Android Auto.
S21080001092022-10-17. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Remote Key Fobs Only Work In Close Range
S21210000082022-10-17. Service bulletin. ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P0756 ? UD Solenoid Circuit, and/or P0755 ? 2C Solenoid Circuit, Set.
90043802022-10-17. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. SOLENOID, Transmission 2020 and 2021MY D2&DJ Before swapping the solenoid module on a repeatable P0755 or P0765, please ensure to download event data and send to contact copied below. This event data will assist with the root cause analysis of the module. Contact: FCA Redacted Content
08088212022-10-17. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. Radio Enhancements This bulletin involves updating the radio software level to 2036.06. Customers may experience the following:Product plan UUID is not correct in Carplay®. Carplay audio does not always resume. Battery save vs. Battery Charge toggles back to Battery Charge after sleep cycle. When ?Charge Now? is selected on key-off outside of the charging schedule ? it does nothing. In addition, the following enhancements are included:Update power supply source from 1 amp to 2.1 amps. GOOGLE® certification enhancements - screen flickers
0807621REVA2022-10-17. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. The following software enhancement is available:Amplifier update to eliminate static noise from the instrument panel mounted speakers.
08082212022-10-17. Service bulletin. ELECTRICAL SYSTEM. Flash: Body Control Module (BCM) Diagnostic and System Improvements This bulletin involves reprogramming the BCM with the latest available software. The customer may describe the following: The shifter gets stuck in park.
08076212022-10-17. Service bulletin. ELECTRICAL SYSTEM. Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. The following software enhancement is available: Amplifier update to eliminate static noise from the instrument panel mounted speakers.
S21080001092022-10-17. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER. Remote Key Fobs Only Work In Close Range
90043802022-10-17. Service bulletin. ELECTRICAL SYSTEM. SOLENOID, Transmission 2020 and 2021MY D2&DJ Before swapping the solenoid module on a repeatable P0755 or P0765, please ensure to download event data and send to contact copied below. This event data will assist with the root cause analysis of the module. Contact: FCA Redacted Content
S22080000802022-10-17. Service bulletin. ELECTRICAL SYSTEM. Ambient Air Temperature Missing, MIL Lamp On, DTC P0070-15 Ambient Air Temperature Sensor Circuit-Circuit Short to Battery or Open; P0073 Ambient Air Temperature Sensor Circuit High
08020222022-10-17. Service bulletin. EXTERIOR LIGHTING; ELECTRICAL SYSTEM; BACK OVER PREVENTION. Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: B143B-12 - ANC Microphone 1-Circuit Short To Battery. B143C-12 - ANC Microphone 2-Circuit Short To Battery. B143E-12 - ANC Microphone 3-Circuit Short To Battery. B143F-12 - ANC Microphone 4-Circuit Short To Battery.The DTCs are wrongly set and do not affect Active Noise Cancelation (ANC) performance.
S21080001632022-09-26. Service bulletin. ELECTRICAL SYSTEM. No Start, Cannot Complete Module Replace, Proxi Or Module Proxi Configuration
90044702022-09-26. Service bulletin. TRAILER HITCHES; ELECTRICAL SYSTEM:WIRING. CONNECTOR/WIRING, Trailer Tow If the connector or wiring is physically damaged, burned, melted or corroded, prior to replacing the part, please contact FCA Redacted Content If no response in 15 minutes, proceed with repair. Please send pictures of the failed part to FCA Redacted Content
23022212022-09-26. Service bulletin. ELECTRICAL SYSTEM. External AC Power Outlet Detaches From the Bezel This bulletin involves inspecting if the external AC power outlet is loose in the frame and repairing if needed Customers may comment on the following: The external AC power outlet is loose in the frame. AC power outlet Detached From Frame/Bezel1 - AC power outlet2 - Outlet Frame
0807621REVB2022-09-26. Service bulletin. ELECTRICAL SYSTEM. Flash: Amplifier (AMP) Diagnostic and System Updates This bulletin involves reprogramming the AMP with the latest available software. The following software enhancement is available: Amplifier update to eliminate static noise from the instrument panel mounted speakers.
90042542022-09-26. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. INSTRUMENT PANEL, Base Panel (Top Pad, Leather) If you are replacing a leather instrument panel top pad for any leather defects (bubbling, delamination, wrinkling, etc.), please contact FCA Redacted Content. If no response in 15 minutes, proceed with repair. Please send pictures of the leather defect to FCA Redacted Content.
23017212022-09-26. Service bulletin. ELECTRICAL SYSTEM. Updated Power Side Step Diagnosis And Testing Procedure This bulletin is to communicate that the power side step diagnosis and testing procedure has been updated in service information.
S21080000982022-09-26. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Radio Screen Freeze, Blank Screen And Reset

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