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Service bulletin 18-068-20

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 id10180279
Published by NHTSA2020-09-28
Manufacturer's number18-068-20
Manufacturer's date2020-08-26
NHTSA componentEQUIPMENT; POWER TRAIN; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE); ELECTRICAL SYSTEM

NHTSA's summary

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Some 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:P1D30-00 - Oil Viscosity Too Low. Attempting to clear the DTC will be unsuccessful. P2453-00 - Diesel Particulate Filter Differential Pressure Sensor Circuit Performance. P0401-00 - EGR Flow Insufficient Detected. P0133-00 - O2 Sensor 1/1 Slow Response. P20EE-00 - SCR NOX Catalyst Efficiency Below Threshold Bank 1. P050E-00 - Cold Start Engine Exhaust Temperature Too Low. P0299-00 - Turbocharger Underboost Condition. P0402-00 - EGR Flow Excessive Detected. P245B - EGR Cooler Bypass Control Circuit Performance. P20C6 - Reductant Heater 4 Control Circuit Performance. P208B - Reductant Pump 1 Control Performance. P249C - Excessive Time To Enter Closed Loop Reductant Injection Control. P20E8-00 - Reductant Pressure Too Low. P20E9-00 - Reductant Pressure Too High. In addition, the following software enhancement is available:Ability to enable the ?Fuel System Cleaning? routine in wiTECH.

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, Engine, Equipment and accessories, Exhaust and emissions, Transmission and driveline, EGR valve

Trouble codes named

P0133, P0299, P0401, P0402, P050E, P1D30, P208B, P20C6, P20E8, P20E9, P20EE, P2453, P245B, P249C

Vehicles listed
RAM 15002017

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

Recalls for the same vehicles and component
19V7570002019-10-24. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE (EGR VALVE)

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
90036382017-11-03. Service bulletin. Fuel Tank Issue Description: Ram 1500 built between 7/1/16 and 8/15/16 with concern of "hard to fill" or "premature shut off", please remove the Canister line and Recirculation Line and retest. If the condition continues, tank replacement may be required. Please reference the proper diagnostic materials. Answers to the following questions can assist Engineering in their quality improvements: 1) At what level of fuel in the Tank does the Hard to Fill condition exist? 2) When did the customer start experiencing Hard to Fill condition? 3) Did the condition exist in a particular fuel station? If tank replacement is needed, please contact Sylvia Lopez at Cell (248) 520-9734 prior to replacing the Tank. She will help arrange shipment of the tank back to the Quality Engineering Center. If no response within 15 minutes proceed with repairs