2021 Ram 3500 Technical Service Bulletins

585 technical service bulletins (TSBs) are on record for the 2021 Ram 3500. 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.

• 11025507Nov 6, 2025Other or unknown. CORE - HEATER
• 11025506Nov 6, 2025Other or unknown. CORE - HEATER
• 11025040Oct 29, 2025Engine. 1. General Parts Update The recommended air filter for 2019 Model Year (MY) and newer 6.7L Cummins equipped vehicles has been updated. New Part: 68645327AA (Non-Oiled Air Filter) Replaces: 53034051AA (Oiled Air Filter) - This part is superseded and should no longer be installed. The air filter for all other applications remains unchanged: Continue to use 68517554AA for: All 2018 MY and older 6.7L Cummins equipped…
• 11024577Oct 24, 2025Transmission and drivetrain. Driveline Vibration. Prop Shaft Diagnostic Information.
• 11024559Oct 22, 2025Engine. Cummins Valvetrain Noise Diagnostics Customers may comment on one or more of the following: ● Ticking noise. ● Clicking noise. ● Engine noise.
• 11024321Oct 8, 2025Engine. On Cummins diesel applications that are for 2019 and newer the bpro part 1BP00507AB can on occasions create a check engine light. In these situations, it is recommended to use the appropriate Mopar air filter (57008652AA). The "AC" level of the part is in development to resolve this issue. 1BP00507AB should still be usable for 2018 and older Model year Cummins engines.
• 11024311Oct 6, 2025Wheels. Tire Pressure Monitor (TPM) Warning Lamp On Or Flashing. Sensor(s) Not Reading And Or Showing Dashes.
• 11023326Sep 18, 2025Body and structure. Exterior Front Lamps Condensation Clearing Procedure *Some customers may report that on occasion vehicle exterior front lamps (headlamps, fog lamps, grille lamps, logo lamps or signature lamps) assemblies are fogged with a light layer of condensation on the inside of the lenses*
• 11023168Sep 12, 2025Suspension. Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts.
• 11022182Aug 22, 2025Engine. Light Random Tick Noise From The Engine
• 11022011Aug 16, 2025Body 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.
• 11022012Aug 14, 2025Body 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.
• 11022003Aug 13, 2025Body 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
• 11021844Aug 7, 2025Transmission and drivetrain. 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.
• 11021581Aug 2, 2025Electrical system. Door speaker Inoperative or No Sound
• 11021585Jul 28, 2025Electrical system. LAMP - DOME
• 11021039Jul 23, 2025Electrical system. Tire Pressure Monitor (TPM) Service Information. TPM Lamp On.
• 11021011Jul 22, 2025Electrical system. 115V Power Outlet LED Always On The amber LED remains continuously illuminated, regardless of whether the switch button is activated. This bulletin involves replacing the inverter switch.
• 11020858Jul 15, 2025Engine. Module - engine controller
• 11020095Jun 27, 2025Electrical system. Bumper Mounted 7 Pin Trailer Tow Connector
• 11019776Jun 12, 2025Electrical system. LAMP - DOME
• 11019600Jun 11, 2025Other or unknown. Warranty Newsletter – Volume 11, Issue 6
• 11019598Jun 11, 2025Other or unknown. FCA Caribbean Warranty Newsletter – Volume 11, Issue 6
• 11019430Jun 7, 2025Electrical system, Seats. "Power Seat Not Adjusting Customers may experience one or more of the following: ● Driver and/or passenger seat moves backwards but not forward. ● Driver and/or passenger seat inoperative. This bulletin involves replacing the front power seat adjusters."
• 11019433Jun 6, 2025Fuel system. "Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris "
• 11018863May 29, 2025Fuel system. "Frequent Repairs Of Fuel Line Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debri "
• 11018855May 29, 2025Engine. Light Random Tick Noise From The Engine.
• 11018859May 28, 2025Engine. D-19-02 Rev. L Fast Feedback Program - 6.7L Cummins Complete Engine, Long Block & Short Block - 2019 - 2024 HD Ram - (D2/DD/DF/DJ/DP)
• 11018809May 28, 2025Other or unknown. CORE - HEATER
• 11018662May 28, 2025Electrical system. LAMP Courtesy/Ambient Courtesy / Ambient Lamp: Light guide not fully seated into the retainer during IP sub-assembly due to inconsistent operator installation effort, leading to latent BSR issue that manifests under customer usage conditions. Solution: remove and reinstall light guide to be fully seated in the bracket retainer.
• 11018649May 23, 2025Other or unknown, Engine. Module, Urea Pump/Level: HD 6.7L (ETL/ETN/ETM) with Mil On P21C4-00 (Reductant Line Heater Relay Control Circuit High / U11C1-00 (Reductant Control Module Received Implausible Data From ECM/PCM), do not replace the DEF Pump. Follow TSB's released and appropriate Service Diagnostics.
• 11018676May 21, 2025Suspension. "Shock And Strut Diagnosis And Replacement Guidelines Leaking, noisy, or weak shocks or struts. "
• 11018485May 17, 2025Fuel system. "Frequent Repairs Of Fuel Line Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris "
• 11018447May 16, 2025Electrical system. "Washer Light On And Will Not Turn Off After Adding Washer Solvent."
• 11017451May 1, 2025Electrical system. LAMP - DOME
• 11017020Apr 12, 2025Engine. "Clicking Noisse from Engine At Idle Customers may comment on the following: ● A clicking noise from the engine at idle. This bulletin involves adding oil system protection and letting the engine idle."
• 11016951Apr 11, 2025Other or unknown. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
• 11016939Apr 9, 2025Other or unknown. Warranty Newsletter – Volume 11, Issue 4
• 11016617Apr 4, 2025Body and structure, Electrical system. Rear Defogger Solder Terminals Detached.
• 11016440Apr 3, 2025Electrical system. Remote Keyless Entry (RKE) Functions Do Not Work, Intermittent Vehicle Response When Using the RKE, Key Not Programmed, Adding Remote Start
• 11016060Mar 28, 2025Other or unknown. "6 CONTROL UNIT, Diesel Exhaust Customer complaints with malfunction light illuminated on 2019 thru 2024 MY DJ / D2 / DD / DP vehicles with 6.7L (ETL / ETM / ETN) built on or before October 15,2024 and exhibiting DTCs P21C4-00 (Reductant Line Heater Relay Control Circuit High) and / or U11C1-00 (Reductant Control Module received implausible Data from ECM / PCM). These DTCs will occur after installation of service…
• 11015657Mar 15, 2025Engine. "Clicking Noise From Engine At Idle Customers may comment on the following: ● A clicking noise from the engine at idle. REPAIR SUMMARY: This bulletin involves adding oil system protection and letting the engine idle."
• 11015599Mar 10, 2025Other or unknown. Malfunction Indicator Lamp (MIL) Illumination, Diagnostic Trouble Codes (DTCs) P21C4 – (Diesel Exhaust Fluid) Reductant Line Heater Control Circuit High, and U11C1 – Reductant Control Module Received Implausible Data From ECM/PCM, Set
• 11014714Feb 27, 2025Other or unknown. "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."
• 11014918Feb 26, 2025Brakes. Module - anti-lock brake system
• 11014914Feb 26, 2025Brakes. Module - anti-lock brake system
• 11014529Feb 20, 2025Electrical system. Touchscreen For all infotainment system repairs (touchscreens, radios, etc.), refurbished parts may be available. Follow the Infotainment Ordering guide available under the "Parts" section of Dealer Connect: DealerCONNECT> Parts> News& Information> Audio & Electronic Products Exchange Process
• 11014887Feb 17, 2025Back-over prevention (rear camera), Lane departure. Camera - rear view
• 11014886Feb 17, 2025Body and structure. Panel - b pillar lower trim
• 11014869Feb 17, 2025Lane departure. Camera - rear view

← All problems reported for the 2021 Ram 3500