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Service bulletins for the 2021 Ram 1500

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.

1129 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

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

Bulletins, newest first
S21180000082022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE. Hard To Fill Fuel Tank. Gas Pump Shuts Off During Filling
90043762022-10-17. Service bulletin. FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. PUMP, Vacuum Prior to replacing the vacuum pumps, please contact or email FCA Redacted Content. If no response in 15 minutes, proceed with repair.
Y812022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL. Emissions Recall Y81 Diesel Exhaust Fluid Inducement
90044932022-10-17. Service bulletin. FUEL SYSTEM, OTHER. RAIL, Fuel Prior to replacing this compoenent, please contact one of the following prior to disassembly: FCA Redacted Content If no response in 15 minutes, proceed with repair.
S22180000012022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE. Customer concern includes Mil-On/Check Engine Lamp-On. There also may or may not be driveability-related concerns that accompany the Mil-On condition. Upon further investigation, there may be a fault code for P062A-FUEL PUMP CONTROL PERFORMANCE.
90044682022-10-17. Service bulletin. FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM. Fuel Pump Control Module, PCM, and Fuel Pump Module Do not replace the PCM, Fuel Pump Control Module, or Fuel Pump Module for a P062A DTC. Please email FCA Redacted Content with your contact information and provide a vehicle scan report from WiTECH showing the DTC in Active, Pending, or Stored status. If no response in 15 minutes, proceed with repair.
14005212022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING. Fuel Line Blockage This bulletin involves replacing the engine fuel/EVAP forward line bundle. 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: P0174 - Fuel System 2/1 Lean. In addition, the customer may notice one or more of the following conditions:Reduced acceleration. Rough starting.
S19250000082022-09-26. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P208B ? Reductant Pump 1 Control Performance, and/or P20E8 ? Reductant Pressure Too Low, Set.
S21140000032022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE. Start/Stall And Malfunction Indicator Lamp (MIL) Illumination After Replacement Fuel Line Chassis Bundle Installation
90043872022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE. BUNDLE, Fuel Line Fuel line bundle part number 68494192A$ utilizes a new design fuel pressure sensor that may differ from the one originally installed on the vehicle. All 2020 model year, and some 2021 model year vehicles will require a new fuel pressure sensor electrical connector (pn# 68137864A$) to be installed when installing this part. Please note, the pin locations for the pressure sensor circuits have also changed on the new design sensor. Circuit N7 (OG) has moved from pin 1 to pin 2. Circuit N10 (YE/GN) has moved from pin 2 to pin 3. Circuit N8 (WH/YL) has moved from pin 3 to pin 1. Please reference Star Online publication S2114000003 for further details.
S18180000242022-09-26. Service bulletin. FUEL SYSTEM, DIESEL. Diesel Fuel Injector Cleaning Procedure
S21080001002022-09-26. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. CEL (Check Engine Lamp) Lamp On, Crank No Start, DTC U0109, U016C Lost Communications With Fuel Pump Module
S21210000022022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE; POWER TRAIN. Transmission Fluid Leak Inspection, Transmission Cooler Line Inspection
Y812022-09-26. Service bulletin. FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. Emissions Recall Y81 Diesel Exhaust Fluid Inducement
90044932022-09-26. Service bulletin. FUEL SYSTEM, OTHER. RAIL, Fuel Prior to replacing this compoenent, please contact one of the following prior to disassembly: FCA Redacted Content If no response in 15 minutes, proceed with repair.
25001212022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE; EXTERIOR LIGHTING; ELECTRICAL SYSTEM. Dual EVAP System Extreme Duty Vapor Canister Filter Kit This informational bulletin is to make technicians aware that an EVAP dual vapor canister filter kit(Mopar part #68478013AA)is available in place of the OEM single vapor canister filter.This kit should not be installed on vehicles driven in normal conditions that are not subjected to the below symptom/conditions. Customers operating fleet or severe/extreme duty gasoline vehicles in continuous dusty driving conditions can plug the single OE filter system and may experience a Malfunction Indicator Lamp (MIL) illumination. Upon furtherinvestigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:P0441 - EVAP Purge System Performance. P062A - Fuel Pump Control Performance. Customers may also experience the following conditions:Hard to fill fuel tank with fuel. Premature shut-off of the gas nozzle when refueling. Flow back of fuel while refueling.
S21080000492022-09-26. Service bulletin. FUEL SYSTEM, GASOLINE. Windshield Washer Fluid Pump Does Not Function. Interior Rear Dome, Vanity And Glove Box Lamps Do Not Illuminate
S1818000024RevB2022-09-15. Service bulletin. FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM. Diesel Fuel Injector Cleaning Procedure
S18180000242022-08-22. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. Diesel Fuel Injector Cleaning Procedure
S21250000012022-07-18. Service bulletin. FUEL SYSTEM, GASOLINE; SERVICE BRAKES; ENGINE AND ENGINE COOLING. High Pressure (HP) Exhaust Gas Recirculation (EGR) Cooler, Perceived Internal Coolant Leak.
Emissions Recall2022-05-31. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Emissions Recall Y81 Diesel Exhaust Fluid Inducement
90044932022-05-31. Service bulletin. FUEL SYSTEM, OTHER. RAIL, Fuel Prior to replacing this compoenent, please contact one of the following prior to disassembly: FCA Redacted Content If no response in 15 minutes, proceed with repair.
S21180000082021-06-28. Service bulletin. FUEL SYSTEM, GASOLINE. Hard To Fill Fuel Tank. Gas Pump Shuts Off During Filling
S1818000024 Rev.2021-05-24. Service bulletin. FUEL SYSTEM, GASOLINE. Diesel Fuel Injector Cleaning Procedure
S21080001002021-05-24. Service bulletin. FUEL SYSTEM, GASOLINE. CEL (Check Engine Lamp) Lamp On, Crank No Start, DTC U0109, U016C Lost Communications With Fuel Pump Module

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