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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.

Warranty extensions
1055912025-06-17. UNKNOWN OR OTHER. FCA Caribbean Warranty Newsletter – Volume 11, Issue 6
1045582025-04-11. UNKNOWN OR OTHER. FCA Caribbean Warranty Newsletter – Volume 11, Issue 4
1045572025-04-10. UNKNOWN OR OTHER. Warranty Newsletter – Volume 11, Issue 4
1006812024-10-01. 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. 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. 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

A warranty extension may pay for a repair after the basic warranty has ended. Read the document for which vehicles and which repair it covers.

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Bulletins, newest first
91009012026-09-17. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
1142542026-09-03. Service bulletin. ENGINE. RADIATOR - ENGINE COOLING
1142552026-09-03. Service bulletin. ENGINE. RADIATOR - ENGINE COOLING
1137442026-08-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM. SENSOR - TURBOCHARGER SPEED
1137422026-08-06. Service bulletin. ENGINE; ELECTRICAL SYSTEM. SENSOR - TURBOCHARGER SPEED
1132762026-07-18. Service bulletin. UNKNOWN OR OTHER. CORE – HEATER
1132772026-07-18. Service bulletin. UNKNOWN OR OTHER. CORE – HEATER
1130692026-07-08. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH – HEADLAMP
1130702026-07-08. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. SWITCH – HEADLAMP
S2208000045 REV.D2026-07-02. Service bulletin. STRUCTURE:BODY. Backup Camera Poor Image Quality Inspection
9100841 Rev 12026-07-02. Service bulletin. POWER TRAIN. If customer concern diagnosis leads to suspect u-joint issue with the prop shaft, u-joint service kit should be utilized to fix concern. Prop shaft replacement would not be required.
1130662026-07-02. Service bulletin. UNKNOWN OR OTHER. OUTLET - AIR CONDITIONING & HEATER
1130652026-07-02. Service bulletin. UNKNOWN OR OTHER. OUTLET - AIR CONDITIONING & HEATER
1129062026-07-02. Service bulletin. ENGINE. BEARING - CRANKSHAFT THRUST and KIT
91008412026-07-02. Service bulletin. POWER TRAIN. HD Front and Rear Prop Shafts Increase U-Joint Usage If customer concern diagnosis leads to suspect u-joint issue or failure with the prop shaft, u-joint service kit should be utilized to fix concern. Prop shaft replacement would not be required.
1129062026-07-02. Service bulletin. ENGINE. BEARING - CRANKSHAFT THRUST and KIT
S1623000028 Rev. K2026-06-18. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
91008352026-06-18. Service bulletin. ELECTRICAL SYSTEM. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
S1623000028 REV.J2026-06-16. Service bulletin. STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S26230000402026-06-16. Service bulletin. STRUCTURE:BODY; ELECTRICAL SYSTEM. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
91008312026-06-16. Service bulletin. STRUCTURE:BODY. For Dealer awareness, HD truck, eliminate 1 of 2 M8 Joints for Sidestep bracket to Body Attachment, Bolt and rivet (06102165AA, 06511062AA) per TCR # 402632, CN 80403-T18
S1623000028 REV.I2026-06-03. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
9100692 Rev 12026-05-28. Service bulletin. ENGINE. 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 originally installed on the vehicle. 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.
1114782026-05-28. Service bulletin. ENGINE. RADIATOR - ENGINE COOLING
08-208-26 REV. A2026-05-20. Service bulletin. ELECTRICAL SYSTEM. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.

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