2021 Ram 2500 Technical Service Bulletins

556 technical service bulletins (TSBs) are on record for the 2021 Ram 2500. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10239971May 24, 2023Transmission and drivetrain, Electrical system. Flash: Powertrain Control Module (PCM) Updates 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 (DTC)s have been set: ? **P0299 - Turbocharger Underboost.** ? P061B - Internal Control Module Torque Calculation Performance. ? P0755 - Shift Solenoid B (DG7 Only). ? P0765 - Shift…
• 10240004May 18, 2023Equipment. SOS, Assistance Calls Not Successful After Radio Replacement or Radio Software Update
• 10239957May 18, 2023Engine cooling. Water Quality When Mixed With Engine Coolant
• 10240017May 2, 2023Transmission and drivetrain. Malfunction Indicator Lamp (MIL) Illumination And Transmission Harsh Shift. Diagnostic Trouble Code (DTC) P2701 ? Transmission Friction Element ?B? Apply Time Range/Performance, Set.
• 10236969Apr 25, 2023Visibility (wipers, defrost, mirrors). Mirror
• 10236873Apr 22, 2023Electrical 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
• 10236871Apr 20, 2023Electrical system. Ambient Temperature Sensor Servicing.
• 10236935Apr 15, 2023Electrical 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)…
• 10236933Apr 15, 2023Equipment, Engine cooling. wiTECH Small Leak Verification Test (SLVT) - P0456-EVAP SYSTEM SMALL LEAK
• 10248049Feb 28, 2023Back-over prevention (rear camera). Radio Over The Air Updating to QR40.12 Software Version Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 connection message on phone, when trying to connect to a device. 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…
• 10234522Feb 28, 2023Electrical system, Equipment. Radio Over The Air Updating to QR40.12 Software Version Mobile Wi-Fi inoperative upon start up. ? Hotspot gives 9No Internet9 connection message on phone, when trying to connect to a device. 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…
• 10247953Feb 15, 2023Electrical system. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
• 10234424Feb 15, 2023Electrical system. Radio Remained On After Ignition Is Switched Off, Dead Battery From Excessive Radio Current Draw
• 10234420Feb 14, 2023Electrical system. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor (IBS) State of Charge (SOC) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes (DTCs), or Battery Warning Lamp On
• 10248003Feb 7, 2023Transmission and drivetrain, Electrical system, Back-over prevention (rear…. Flash: Powertrain Control Module (PCM) Updates Customer or technician may experience the following: ? High frequency exhaust noise at idle after cold start. ? Power Take Off (PTO) disable to high engine oil temperature. ? Multiple Displacement System (MDS) transition causing a transmission clunk noise under light throttle when coasting in fourth gear. This bulletin involves reprogramming the PCM with the latest…
• 10234476Feb 7, 2023Back-over prevention (rear camera), Transmission and drivetrain, Air bags…. Flash: Powertrain Control Module (PCM) Updates Customer or technician may experience the following: ? High frequency exhaust noise at idle after cold start. ? Power Take Off (PTO) disable to high engine oil temperature. ? Multiple Displacement System (MDS) transition causing a transmission clunk noise under light throttle when coasting in fourth gear. This bulletin involves reprogramming the PCM with the latest…
• 10231741Jan 25, 2023Back-over prevention (rear camera). Backup Camera Blue Screen After Flat Bed Install
• 10231792Jan 24, 2023Back-over prevention (rear camera). Radio Over The Air Updating to 40.12 Software Version Mobile Wi-Fi inoperative upon start up. Hotspot gives 9No Internet9 connection message on phone when trying to connect to a device. 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…
• 10231739Jan 24, 2023Equipment. Diagnostic Trouble Code (DTC) P1400 ? Aftermarket Calibration Detected/Warranty Coverage Confirmation Required, Setting Falsely.
• 10231735Jan 23, 2023Visibility (wipers, defrost, mirrors), Back-over prevention (rear camera)…. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
• 10231785Jan 20, 2023Equipment. Radio Over The Air Updating to 39.92 Software Version Text displayed on radio ?Installing pop up message? for entire key cycle. Improper NAV search results. Lost SXM presets after remote start through Uconnect app. Rear shelf speaker crackles/popping noise. This bulletin provides information regarding the latest Firmware Over The Air (FOTA) update and provides the service technician an overview of the steps a…
• 10231721Jan 6, 2023Equipment. Customer Indicates Heat Is Blowing Warm Not Hot.
• 10231711Jan 6, 2023Equipment. Washer Light On And Will Not Turn Off After Adding Washer Solvent.
• 10231712Jan 5, 2023Exterior lighting, Back-over prevention (rear camera). Malfunction Indicator Lamp (MIL) Illumination. NOx Sensor Diagnostic Trouble Codes (DTCs) Diagnosis Information.
• 10229768Dec 21, 2022Fuel system. Upgrading To A Larger Capacity Fuel Tanks
• 10229819Dec 16, 2022Back-over prevention (rear camera), Brakes, Steering, Engine cooling, Wheels…. UAV and UCV Radio Enhancements Customers may experience one or more of the following: ? **Wi-Fi hotspot connection failure. ? Speaker popping, crackle noise during Voice Recognition (VR) response and navigation guidance. ? Mobile Station Integrated Services Digital Network (MSISDN) missing from radio, no connected services working.** ? Lost radio presets. ? SXM favorite song not displaying/playing. ? Incorrect…
• 10229759Dec 16, 2022Engine cooling, Fuel system. Suspected Internal Exhaust Gas Recirculation (EGR) Cooler Coolant Leak, Additional Diagnostics.
• 10229810Dec 15, 2022Body and structure. Aluminum Body Panel Corrosion Repair Aluminum corrosion or bubbling along the leading edge of hood, hinges or other exterior surface areas of the hinges, doors, fenders, swing gates or liftgates. NOTE: Digital imaging pre authorization is required for Smart Warranty Base dealers or Pre Approval is required from Regional Office depending on market.
• 10229710Dec 15, 2022Fuel system, Engine cooling. Gasket, Cylinder Head Cover For US dealers, and 21-22 model year vehicles only. If replacing the cylinder head cover/fuel injector harness gasket due to an oil leak, please also replace the following components: 1. 68445548A$ - Cover, Cylinder Head (includes gasket); 2. 05179087A$ - Housing, Rocker Arm; 3. 68005453A$ - Bolt and Grommet, Cylinder Head Cover to Cylinder Head (qty 6); 4.
• 10229756Dec 14, 2022Electrical system. Right or Left Reverse Back Up Lamp Inoperative, Cluster Warning Message for a Lamp Out
• 10230405Nov 10, 2022Electrical system. Telematic box module 2
• 10230407Nov 4, 2022Exterior lighting. Base Headlamp Bright, Base Headlamp Black
• 10227721Oct 26, 2022Equipment, Electrical system. Radio Remained On After Ignition Is Switched Off, Dead Battery from Excessive Radio Current Draw
• 10226009Sep 28, 2022Visibility (wipers, defrost, mirrors). Exterior Mirror Lamp Service
• 10226006Sep 27, 2022Back-over prevention (rear camera), Electrical system. Back-Up Camera Inoperative Complaints, Radio Display Blue or Blank When Placed in Reverse
• 10226002Sep 22, 2022Fuel system. Guidelines For The Use Of Alternative Diesel Fuels.
• 10225999Sep 22, 2022Visibility (wipers, defrost, mirrors). Check Engine Lamp (CEL) on Diagnostic Trouble Codes (DTC?s) P0073 Ambient Air Temperature Sensor Circuit High, U113D-00 Lost Communication with Master Power Window Switch
• 10225992Sep 16, 2022Visibility (wipers, defrost, mirrors), Electrical system. Ambient Temperature Sensor Servicing.
• 10225951Sep 14, 2022Other or unknown, Electrical system, Body and structure. 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
• 10229512Aug 30, 2022Visibility (wipers, defrost, mirrors). Ambient Temperature Sensor Servicing.
• 10225369Aug 30, 2022Equipment. Ambient Temperature Sensor Servicing.
• 10225232Aug 30, 2022Equipment. Ambient Temperature Sensor Servicing.
• 10229572Aug 19, 2022Body and structure. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10225424Aug 19, 2022Body and structure. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10225287Aug 19, 2022Body and structure, Other or unknown. Approved Use of Weld Through Primers This bulletin documents the FCA US LLC position regarding the use of weld through primer when using Squeeze Type Resistance Spot Welding (STRSW) and Gas Metal Arc Welding (GMAW) processes when welding steel body panels and structural components.
• 10229517Aug 17, 2022Fuel system. Warranty Bulletin D-19-02 Fast Feedback Program - 6.7L Cummins Engine & Fuel Injection Pump - 2019 - 2023 HD Ram ? All Models (Rev. J)
• 10225373Aug 17, 2022Fuel system. Warranty Bulletin D-19-02 Fast Feedback Program - 6.7L Cummins Engine & Fuel Injection Pump - 2019 - 2023 HD Ram ? All Models (Rev. J)
• 10225236Aug 17, 2022Fuel system. Warranty Bulletin D-19-02 Fast Feedback Program - 6.7L Cummins Engine & Fuel Injection Pump - 2019 - 2023 HD Ram ? All Models (Rev. J)
• 10229492Aug 15, 2022Engine cooling, Electrical system. Engine Control Module (ECM) Flash Failure, Diagnostic Trouble Code (DTC) U1601 ? ECU Application Software Code 1 Missing Or Corrupted
• 10229491Aug 13, 2022Visibility (wipers, defrost, mirrors), 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

← All problems reported for the 2021 Ram 2500