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Service bulletins for the 2021 Ram 5500

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.

369 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.

By type

By component

By trouble code

Bulletins, newest first
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
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
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
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.
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.
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
21-039-262026-05-20. Service bulletin. POWER TRAIN. Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift Incorrect Ratio (This DTC will set during a key cycle and shifting into Drive). Customers must also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure
21-039-262026-05-13. Service bulletin. POWER TRAIN. Replace K1 Clutch / Input Shaft Assembly Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P0731-00 - Gear 1 Shift Incorrect Ratio (This DTC will set during a key cycle and shifting into Drive). Customers must also comment on the following: ● The transmission will not shift into or out of 1st - 4th gears. 5th and reverse gears are still available This bulletin involves replacing the K1 clutch and possibly the K1 input shaft drum sub-assembly. These repairs are to be performed only if the vehicle is inoperable due to K1 clutch failure
S26230000322026-05-06. Service bulletin. STRUCTURE:BODY. Squeak Or Squawk Noise Coming From Either Side Door Of The Vehicle, It Could Be Just One Door Or More. The Noise Can Be Present In Either The Upper Or The Lower Hinge.
S2509000005 REV.B2026-04-22. Service bulletin. ENGINE. Light Random Tick Noise From The Engine.
S26140000022026-04-22. Service bulletin. ENGINE. Diagnostic Trouble Code (DTC) P2459-00 Particulate Filter Regeneration Too Frequent Setting in the Powertrain Control Module (PCM) or Under Fueling or Over Fueling Condition After Fuel Injector(s) Replacement
S1623000028 REV.H2026-04-10. Service bulletin. STRUCTURE:BODY. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
S2208000045 REV.C2026-03-25. Service bulletin. UNKNOWN OR OTHER. Backup Camera Poor Image Quality Inspection

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