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Service bulletins for the 2019 Ram 3500

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
90042552020-05-26. Service bulletin. PARKING BRAKE; ELECTRICAL SYSTEM. SWITCH, Ignition, Push Button (Keyless Ignition Node) Prior to replacing parts for a B1A7D-2A Diagnostic trouble code on heavy duty trucks.Please call FCA Redacted Content , please email a scan and config report to FCA Redacted Content. If no response in 15 minutes, proceed with repair.
90042512020-05-26. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. RFE Valvebody Plug Installation OEM RFE valve bodies require seven (7) 06030035 plugs installed and torqued to 45 in-lb (5Nm). Notify independant repair facilities when they order valve body.
90042532020-05-26. Service bulletin. TRAILER HITCHES. MODULE, Trailer Tow (Integrated Trailer Brake Module For concern of error message ?Park Assist System Disabled? displayed on the Cluster with DTC U0137 stored or active, please review the communication path between the ITBM and PTS (Parktronics ? Park Assist System). Follow U0137 and Communication Diagnostic Procedure to rule out potential improper connector installation, damage harness / connector, water intrusion, or TPO issues. If the DTC U0137 is stored, please do 5 igniton cycles from bus sleep mode and verify if the DTC becomes active. If the DCT U0137 is active, please create and email a copy of the Scan Report to: FCA Redacted Content We will review the scan report and let you know next step as soon as we can. Please contact FCA Redacted Content for any questions. If no response in 15 minutes, proceed with repair.
90042482020-05-26. Service bulletin. ENGINE AND ENGINE COOLING. Compressor RAM HD/CC. For AC Compressor, If you detected any issue related with: The AC blows warm air, Not Cold, Not cold enough. There is an investigation in the HVAC system If you detected an issue in the HVAC system, follow the procedure "Heating and Air Conditioning Diagnosis and Testing (A/C PERFORMANCE)" Prior to replacement compressor please check first the Temperature on the Evaporator: at 5°C +/- 2 °C & compressor cycling. If you review it and the compressor gets the temperature & it cycling, please continue to your work in other possible HVAC issue. If you have any question or you need more information you can contact us by phone or email contact FCA Redacted Content or by email: FCA Redacted Content If no response in 15 minutes, proceed with repair.
90042452020-05-26. Service bulletin. ENGINE AND ENGINE COOLING; PARKING BRAKE. Gasket, Timing Gear Housing For 2019, and 2020 Model Year Only. If you are replacing the timing housing gasket due to an oil leak, please take detailed pictures of the leak, and submit them to the Star Center. Once submitted, continue with the repair. During the repair, check the breakaway torque of the gear housing retaining bolts. If any are found to be loose, note the location of the loose bolt(s) in the Star case.
09-003-20 REV. B2020-05-26. Service bulletin. ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING; STRUCTURE. Inspect Throttle Body Assembly This bulletin involves inspecting the Julian date on the throttle body and possibly replacing it. 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:P2100 - Electronic Throttle Control Motor Circuit/Open - Bank 1. The customer may also describe the following:The vehicle is in limp home mode.
23-010-20 REV. A2020-05-26. Service bulletin. POWER TRAIN; VEHICLE SPEED CONTROL. Sunroof Water Leak This bulletin involves testing the sunroof for leaks and replacing the power sunroof glass, if necessary. The customer may describe a water leak from A-pillar grab handle or headliner microphone.
23-012-20 REV. A2020-05-26. Service bulletin. AIR BAGS; PARKING BRAKE. Park Brake Pedal Doesn't Fully Return This bulletin involves inspecting and if necessary, replace the parking brake tensioner and then adjust the parking brake cable system. Customer may comment on one or more of the following:The parking brake foot pedal does not fully return. The red ?brake? light is illuminated in the Instrument Panel Cluster (IPC).
21-016-202020-05-26. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC:P0733-00 - Gear 3 Shift Incorrect Ratio. The following software enhancements are available:Harsh garage shift engagements in to, either reverse or drive resultingin excessive shift bump. While in hill descent control, utilizing Electronic Range Select (ERS) buttons to modulate speed, the ERS buttons give a lower or highergear than required/desired. Under light to medium brake maneuvers on flat ground, customer complains of harsh4-3 (lines up to with ECO mode transition).
23-012-202020-05-26. Service bulletin. PARKING BRAKE. Park Brake Pedal Doesn't Fully Return This bulletin involves inspecting and if necessary, replace the parking brake tensioner and then adjust the parking brake cable system. Customer may comment on one or more of the following:The parking brake foot pedal does not fully return. The red ?brake? light is illuminated in the Instrument Panel Cluster (IPC).
08-031-202020-05-26. Service bulletin. ELECTRICAL SYSTEM. Missing Upfitter Auxiliary Wiring This bulletin involves adding a jumper wire harness to the rear auxiliary wiring harness. The customer or upfitter may describe the following:The upfitter auxiliary fused wires are not populated on the rear of the chassis wiring harness equipped with Instrument Panel (IP) auxiliary switches. The wires are located on the right side of the rear chassis cross beam, above the fifth wheel.
18-019-202020-05-26. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module (ECM/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 more of the following DTCs have been set:P0626 - Generator Field Control Circuit High. P218F - Reductant No Flow Detected. P2002 - Diesel Particulate Filter Efficiency Below Threshold. P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. P0191 - Fuel Rail Pressure Sensor Circuit Performance. P0461 - Fuel Level Sensor 1 Performance. P0401 - EGR System Performance. P20EE - NOx Catalyst Efficiency Below Threshold. P061A - Level 2 Torque Performance. P061B - Internal Control Module Torque Calculation Performance. P061E - Internal Control Module Brake Signal Performance. P062C - Etc Level 2 MPH Performance. P0106 - Manifold Absolute Pressure Sensor Performance (In extreme cold ambient temperatures). P0116 - Engine Coolant Temperature Sensor Performance. P0420 - Catalyst System Efficiency Bank 1. P1507 - Crankcase Filter Restriction. P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. P203F - (Diesel Exhaust Fluid) Reductant Level Too Low. P226C - Turbocharger Boost Control ?A? Slow Response (In extreme cold ambient temperatures). P2579 - Turbocharger Speed Sensor Circuit. U0101 - Lost Communication with TCM. U02A3 - Lost of Communication with PM Sensor. U3017 - Control Module Timer/Clock Performance. The customer may also notice one or more of the following:Oil life monitor resets after PCM flash. Diesel Exhaust Fluid (DEF) level gauge inaccurate. Message ?Regen in progress will take up to 70 Minutes? remains in Electronic Vehicle Information Center (EVIC) when aborting manual regeneration process. Excessive DEF consumption. Poor idle at times when engaging cab heat feature. In addition, the following enhancements are included:wiTECH Fuel System R
VF12020-05-26. Service bulletin. SEATS. Customer Satisfaction Notification VF1 Seat Heater Switch
VB6 Rev. 32020-05-26. Service bulletin. ENGINE AND ENGINE COOLING. Revised Emissions Recall VB6 Diesel Engine Calibration
S18080001472020-05-26. Service bulletin. EQUIPMENT. Radio Does Not Save Sirius XM 360L Radio Presets
S19080002082020-05-26. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY. Satellite Radio Inoperative Radio Has Code B156B-13.
S15080004802020-05-26. Service bulletin. VEHICLE SPEED CONTROL. Speed Control Operates Intermittently
S20230000182020-05-26. Service bulletin. TRAILER HITCHES; LANE DEPARTURE. Trailer Detection For Heavy Duty Truck - Blind Spot And Trailer Merge Assist
S18230000292020-05-26. Service bulletin. EQUIPMENT. Water Leak Carpet Wet At Front And Or Rear Seats
S20230000142020-05-26. Service bulletin. VISIBILITY. Single Pop Noise From Rear Of Sunroof While Opening
90042302020-05-26. Service bulletin. EQUIPMENT:ELECTRICAL. LAMP, Center High Mounted Stop (CHMSL - Cargo lamp) For concern of water leak intrusion at CHMSL lamp: Before CHMSL lamp removal, please check for proper CHMSL installation. Verify that CHMSL harness is well hidden (not visible) into the cabin and not trapped between lamp and cabin. If harness is trapped, take a picture and verify seal foam also has a harness mark. Add this comment into narrative. Please call FCA Redacted Content prior to replacing the component (if needed). If no response in 15 minutes, proceed with repair.
09-003-20 REV. B2020-05-18. Service bulletin. STRUCTURE; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING. Inspect Throttle Body Assembly This bulletin involves inspecting the Julian date on the throttle body and possibly replacing it. 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:P2100 - Electronic Throttle Control Motor Circuit/Open - Bank 1. The customer may also describe the following:The vehicle is in limp home mode.
23-010-20 REV. A2020-05-18. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS. Sunroof Water Leak This bulletin involves testing the sunroof for leaks and replacing the power sunroof glass, if necessary. The customer may describe a water leak from A-pillar grab handle or headliner microphone.
23-012-20 REV. A2020-05-18. Service bulletin. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES. Park Brake Pedal Doesn't Fully Return This bulletin involves inspecting and if necessary, replace the parking brake tensioner and then adjust the parking brake cable system. Customer may comment on one or more of the following:The parking brake foot pedal does not fully return. The red ?brake? light is illuminated in the Instrument Panel Cluster (IPC).
21-016-202020-05-18. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Control Module (TCM) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following DTC:P0733-00 - Gear 3 Shift Incorrect Ratio. The following software enhancements are available:Harsh garage shift engagements in to, either reverse or drive resultingin excessive shift bump. While in hill descent control, utilizing Electronic Range Select (ERS) buttons to modulate speed, the ERS buttons give a lower or highergear than required/desired. Under light to medium brake maneuvers on flat ground, customer complains of harsh4-3 (lines up to with ECO mode transition).

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