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Service bulletin 1805920

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10221867
Published by NHTSA2022-09-26
Manufacturer's number1805920
Manufacturer's date2020-08-07
NHTSA componentELECTRICAL SYSTEM; POWER TRAIN

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the Engine Control Module (ECM) / Powertrain Control Module (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 Diagnostic Trouble Codes (DTCs) have been set:P2463-00 - Diesel Particulate Filter Restriction - Soot Accumulation Bank 1. P242F-00 - Diesel Particulate Filter Restriction - Ash Accumulation. P1D73-00 - AGS Performance. P0299-00 - Turbocharger Underboost(Additional Improvement for D2 ETM Only). P1451-00 - Diesel Particulate Filter System Performance. P0421-00 - Catalyst 1 Efficiency Below Threshold Bank 1. P24A5-00 - EGR Cooler Bypass Bank 1 Control Stuck. P21C4-00 - Reductant Line Heater Relay Control Circuit High. P2560-00 - Engine Coolant Level Low. P2201-00 - Aftertreatment NOX Sensor Circuit Performance - Bank 1 Sensor 1. P0604-00 - Internal Control Module Ram. P0607-00 - ECU Internal Performance. P0868-00 - Line Pressure Low (Module, Powertrain Control (PCM), 68RFE). P0740-00 - TCC Out Of Range. P218F-00 -Reductant No Flow Detected. P20EE - NOx Catalyst Efficiency Below Threshold. P226C - Turbocharger Boost Control ?A? Slow Response (In extreme cold ambient temperatures). 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. P203F - (Diesel Exhaust Fluid) Reductant Level Too Low. P20E8 - (Diesel Exhaust Fluid) Reductant Pressure Too Low. P0420 - Catalyst System Efficiency Bank 1. U02A3 - Lost of Communication with PM Sensor. P1507 - Crankcase Filter Restriction. P0116 - Engine Coolant Temperature Sensor Performance. P0106 - Manifold Absolute Pressure Sensor Performance (In extreme cold ambient temperatures). U3017 - Control Module Timer/Clock Performance.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Transmission and driveline

Trouble codes named

P0106, P0116, P0299, P0420, P0421, P0604, P0607, P061A, P061B, P061E, P062C, P0740, P0868, P1451, P1507, P1D73, P203F, P20E8, P20EE, P218F, P21C4, P2201, P226C, P242F, P2463, P24A5, P2560, U02A3, U3017

Vehicles listed
RAM 25002019
RAM 35002019

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20V5110002020-08-27. ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION; ELECTRICAL SYSTEM:SOFTWARE
20200252020-01-24. Powertrain
20V0430002020-01-24. POWER TRAIN:AUTOMATIC TRANSMISSION

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
91009012026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
1137442026-08-06. Service bulletin. SENSOR - TURBOCHARGER SPEED
1137422026-08-06. Service bulletin. SENSOR - TURBOCHARGER SPEED
1130692026-07-08. Service bulletin. SWITCH – HEADLAMP
1130702026-07-08. Service bulletin. SWITCH – HEADLAMP
S1623000028 Rev. K2026-06-18. Service bulletin. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
91008352026-06-18. Service bulletin. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
S26230000402026-06-16. Service bulletin. Passive Entry Exterior Door Handle Inoperative When Touched To Lock And Or Unlock.
S1623000028 REV.I2026-06-03. Service bulletin. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
08-208-26 REV. A2026-05-20. Service bulletin. Radio Message "Power Surge On USB Detected" Customers may comment on the following: ● The radio displays the message: “Power surge on USB hub detected” Fig. 1. NOTE: After the message appears, no USB devices function in the hub (no charging, no data). NOTE: Hub operation does not return until the vehicle undergoes a full key cycle.