Service bulletins for the 2020 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.
1228 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
Only bulletins with component: Engine are shown. Show all
| S1808000282 Rev. | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. CEL, Check Engine Lamp On, Idles Rough Or Drivability Concerns |
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| S2018000001 Rev. | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Code (DTC) P26FB ? EGR Cooler Bypass Control Stuck Closed Bank 1 Set. |
| S2125000001 | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. High Pressure (HP) Exhaust Gas Recirculation (EGR) Cooler, Perceived Internal Coolant Leak. |
| S2109000001 | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. Customer may complain of a MIL lamp on. Upon further investigation there could be a fault code in the PCM for P1524 ? Oil Pressure Out of Range ? Camshaft Advance/Retard Disabled. |
| S1709000010 Rev. | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear (roller failure) on one or more cam lobes and that camshaft/lifter replacement is necessary. |
| 9004345 | 2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. COOLER, EGR If you are replacing the high pressure EGR cooler (p/n 68490113A$) for a suspected internal coolant leak that was detected by wetness in the EGR pipe or valve, please perform proper cooling system pressure test first to verify the leak. Refer to all published service information regarding Cooling Diagnosis and Testing (LEAK TESTING) before proceeding. |
| 08-100-20 | 2020-12-28. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Incorrect Starter Motor Installed This bulletin involves inspecting and possible replacement of the starter motor, for a whining noise upon vehicle start up. The customer may hear a whining noise coming from the start motor when the vehicle is started. |
| S1625000005 Rev. | 2020-12-28. Service bulletin. EQUIPMENT; FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown. |
| S2008000171 | 2020-12-28. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:APPLIANCE:AIR CONDITIONER. HVAC Blower Motor Operates Intermittently Or Changes Speeds |
| 08-100-20 | 2020-12-21. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Incorrect Starter Motor Installed This bulletin involves inspecting and possible replacement of the starter motor, for a whining noise upon vehicle start up. The customer may hear a whining noise coming from the start motor when the vehicle is started. |
| S2008000126 Rev. | 2020-12-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; ENGINE. (Rev. B) RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start |
| S1925000008 Rev. | 2020-12-21. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE; FUEL SYSTEM, DIESEL. (Rev. B) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
| S1625000005 Rev. | 2020-12-21. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM; FUEL SYSTEM, DIESEL. (Rev. A) Malfunction Indicator Light (MIL) Illuminated. Service Diesel Exhaust Fluid (DEF) System ? See Dealer Soon Message on Electronic Vehicle Information Center (EVIC) Along With Possible Diagnostic Trouble Code (DTC) P241D - SCR Inducement - Forced Engine Shutdown. |
| S2024000007 | 2020-11-30. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Indicates There Is A Whistle Noise After The Vehicle Is Turned Off. |
| S2008000159 | 2020-11-30. Service bulletin. ELECTRICAL SYSTEM:INTERIOR LAMPS/BULBS; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING. CEL (Check Engine Lamp) On, Slightly Higher Than Expected Idle |
| S1918000013 Rev. | 2020-11-30. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. No Crank No Start Condition. P0688 - Auto Shutdown Relay Sense Circuit Low Found In The PCM |
| S2008000151 | 2020-11-30. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PRESSURE/TEMPERATURE SENSOR. Outside Air Temperature Displayed On Cluster Or Radio Are Inaccurate |
| S1908000041 Rev. | 2020-10-26. Service bulletin. ENGINE. (Revision A) Check Engine Lamp On, DTC?s P0480 Cooling Fan Circuit Open Or U0465 Loss Communication With Active Air Dam |
| 9001496 | 2020-10-26. Service bulletin. ENGINE; EQUIPMENT. CAP, Engine Oil, Fill (O RING, Oil Filler Cap) For all model years, models and engines using oil fill caps with O-Ring seals: These O-Rings are now available for service. The green O-Ring is part 68029299A$. The black O-Ring is to be serviced by the green O-Ring. The blue O-Ring (thicker cross section than green & black) is part 68029300A$.~ If ordering this oil filler cap for a warranty repair due to a damaged/missing O-ring, please note that returned caps replaced for an O-ring issue will be subject to chargeback. |
| 9004298 | 2020-10-26. Service bulletin. ENGINE; EQUIPMENT. Intake Manifold, Intake Manifold Gaskets, Intake Manifold Bolts If the intake manifold is being removed for service and the vehicle build date is between 02/24/20 to 08/07/20, please inspect the intake manifold for cracks around the intake manifold mounting bolt holes. If cracks are found please replace the intake manifold and intake manifold mounting bolts with P/N 06510314AA or later, torquing the bolts to specification when installing. If no cracks are found around the mounting holes, the intake manifold is OK to re-install during re-assembly using NEW mounting bolts p/n 06510314AA or later and torquing to specification. |
| S2008000124 | 2020-09-28. Service bulletin. EQUIPMENT; STRUCTURE:FRAME AND MEMBERS; ENGINE; ELECTRICAL SYSTEM. Power Side Steps, Running Boards, Do Not Extend When Exiting Vehicle Or Retract As Expected |
| S2008000126 | 2020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start |
| S2008000123 | 2020-09-28. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ENGINE. Radio Resets While Driving Under 1000 RPM |
| S2018000009 | 2020-09-28. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ELECTRICAL SYSTEM. Malfunction Indicator Lamp (MIL) Illuminated. Diagnostic Trouble Codes (DTCs) P00AF ? Turbocharger Boost Control Module ?A? Performance and/or P226C ? Turbocharger Boost Control Module ?A? Slow Response. |
| S1925000008 Rev. | 2020-09-28. Service bulletin. EXTERIOR LIGHTING; FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. (Revision A) Malfunction Indicator Lamp (MIL) Illumination. Diagnostic Trouble Codes (DTCs) P20E8 ? Reductant Pressure Too Low and/or P208B ? Reductant Pump 1 Control Performance Set. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.