WenmarOpen by Wenmar Pro

Service bulletins for the 2019 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.

1178 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
S1808000282 Rev.2021-02-16. Service bulletin. ENGINE AND ENGINE COOLING. CEL, Check Engine Lamp On, Idles Rough Or Drivability Concerns
S21090000012021-02-16. 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.
18-076-20 REV. A2020-12-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) has been set:P0339 - Crankshaft Position Sensor Intermittent. P0335 - Crankshaft Position Sensor Circuit. P258B - Electronic Vacuum Pump Performance. P0456 - EVAP System Small Leak. If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system.The customer may comment on one or more of the following:ECO light does not illuminate in the instrument cluster during Multiple Displacement Solenoid (MDS) event. 2-3 km (1.4 to 1.9 mph) difference between cruise set speed and the actual vehicle speed. ?Ready Not Ready? appearing message in the Electronic Vehicle InformationCenter (EVIC) while driving and before an Engine Stop Start (ESS) event. The engine may exhibit a crank and fail to start situation. Vehicle has a rough idle only after cold start. The radiator cooling fan is stuck on for a long time while driving. Coolant temp/check gauges light illuminated in the Instrument Panel Cluster(IPC). In addition, the following software enhancements are also available:Radiator cooling fan operation strategy. Updated electric vacuum pump calibration to reduce pump wear. Small leak detection in-use monitor performance ratio.
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.
18-076-20 REV. A2020-12-21. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) has been set:P0339 - Crankshaft Position Sensor Intermittent. P0335 - Crankshaft Position Sensor Circuit. P258B - Electronic Vacuum Pump Performance. P0456 - EVAP System Small Leak. If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system.The customer may comment on one or more of the following:ECO light does not illuminate in the instrument cluster during Multiple Displacement Solenoid (MDS) event. 2-3 km (1.4 to 1.9 mph) difference between cruise set speed and the actual vehicle speed. ?Ready Not Ready? appearing message in the Electronic Vehicle InformationCenter (EVIC) while driving and before an Engine Stop Start (ESS) event. The engine may exhibit a crank and fail to start situation. Vehicle has a rough idle only after cold start. The radiator cooling fan is stuck on for a long time while driving. Coolant temp/check gauges light illuminated in the Instrument Panel Cluster(IPC). In addition, the following software enhancements are also available:Radiator cooling fan operation strategy. Updated electric vacuum pump calibration to reduce pump wear. Small leak detection in-use monitor performance ratio.
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.
18-074-20 REV. A2020-11-30. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ENGINE AND ENGINE COOLING. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or moreof the following Diagnostic Trouble Codes (DTCs) have been set:P0339 - Crankshaft Position Sensor Intermittent. P0335 - Crankshaft Position Sensor Circuit. P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT)to determine if a leak is present in the system. P258B - Electronic Vacuum Pump Performance. The customer may experience one or more of the following:ECO light does not illuminate in the instrument cluster during MultipleDisplacement Solenoid (MDS) event. 2-3 km (1.4 to 1.9 mph) difference between cruise set speed and the actualvehicle speed. The engine may exhibit a crank and fail to start situation. The vehicle has a rough idle only after cold start. The radiator cooling fan is stuck on for a long time while driving. Coolant temp/check gauges light illuminated in the Instrument Panel Cluster(IPC). Radiator cooling fan inoperative.
S20240000072020-11-30. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Indicates There Is A Whistle Noise After The Vehicle Is Turned Off.
S20080001592020-11-30. 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
S20080001512020-11-30. 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
90014962020-10-26. 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.
18-058-202020-09-28. Service bulletin. EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:P0456 - EVAP System Small Leak. P06EF - Engine Restart Performance. P0175 - Fuel System 2/1 Rich. P258B - Electronic Vacuum Pump Performance. P0128 - Thermostat Rationality. C0062 - Longitudinal Acceleration Sensor. In addition, customers may comment on one or more of the following:A hesitation during aggressive accelerations after an Electronic Stop/Start (ESS) event and the engine is not fully at warm operational temperature. Engine RPM erratic and or bucking, when accelerating after slowing down. Occasional engine shut off while shifting from 4WD low to 2WD. Improvements to the vacuum pump cycle time. Rough idle after cold start.
S20080001242020-09-28. 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
S20080001262020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. RKE Has Reduced Range, Remote Start Inoperative, Multiple Keyless Go Push Attempts To Start
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.
S20080001132020-09-28. Service bulletin. ENGINE; ELECTRICAL SYSTEM. No Start Intermittently, Vehicle Requires Multiple Keyless Push To Start Attempts To Start Vehicle
S19070000012020-08-24. Service bulletin. ENGINE AND ENGINE COOLING. Skunk Like Smell From The Engine Compartment Area
S20080000992020-08-24. Service bulletin. ENGINE; ELECTRICAL SYSTEM. Vehicle Cranks And Does Not Start, Multiple Low Voltage DTC?s Setting
09-009-202020-07-27. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. Improperly Installed Exhaust Gas Recirculation (EGR) Valve This bulletin involves removing and inspecting the vacuum tube, EGR tube gaskets, tube flange mounting bolts and possibly replacing the EGR tube gaskets and torquing the flange bolts. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set:P245B - EGR-Cooler-Bypass-Control-Circuit-Performance. The customer may also notice one or more of the following:An exhaust smell in the cabin. A whistle noise coming from the engine compartment.
S20230000312020-07-27. Service bulletin. ENGINE AND ENGINE COOLING. Whistle Noise Inside Cab With Window Slightly Lowered

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