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Service bulletin 18-012-15

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 id10144819
Published by NHTSA2018-09-24
Manufacturer's number18-012-15
Manufacturer's date2015-02-06
NHTSA componentFUEL SYSTEM, GASOLINE; ENGINE

NHTSA's summary

Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module (ECM) with the latest available software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. Improvements To Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For The Following Diagnostic Trouble Codes (DTCs): ? U3017 - Control Module Timer/Clock Performance. ? U1421 - Implausible Ignition Key Off Time Received. ? P2281 - Air Leak Between MAF And Throttle Body. Other Software Improvements: ? Fuel Filter Minder calibration changes. ? wiTECH Fuel Pressure Override and Fuel System Run Up test improvements. ? EGR system improvement to help prevent freeze up. ? Diesel Exhaust Fluid (DEF) system enhancement during stationary regeneration.

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

Engine, Fuel system

Trouble codes named

P2281, U1421, U3017

Vehicles listed
RAM 35002015
RAM 45002015

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

Recalls for the same vehicles and component
20182692018-05-17. Engine
20174412017-09-13. Engine
17V5620002017-09-12. ENGINE AND ENGINE COOLING:ENGINE:DIESEL

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
91009232026-09-30. Service bulletin. AIR CLEANER - NONE Instruction to Dealers while ordering the PN# 68137142AD. 1. If the Air Cleaner Assembly is functional and only the MAF Sensor has failed, the dealer should order and replace only the MAF Sensor(68002441AC). 2. If the Air Cleaner Assembly has failed and the MAF Sensor remains functional, the dealer should order the new Air Cleaner Assembly PN(68137142AD) and reuse the existing MAF Sensor(68002441AC) from the failed assembly. 3. If both the Air Cleaner Assembly and the MAF Sensor have failed, the dealer should order both the New Air Cleaner Assembly(68137142AD) and the MAF Sensor(68002441AC) as separate service parts.
1129062026-07-02. Service bulletin. BEARING - CRANKSHAFT THRUST and KIT
1129062026-07-02. Service bulletin. BEARING - CRANKSHAFT THRUST and KIT
67A Rev 4 Combo2024-07-02. Service bulletin. Emission Recall 67A D Truck Engine Calibration
67A Rev 3 Combo2024-06-28. Service bulletin. EMISSION RECALL 67A D Truck Engine Calibration
S1625000004 REV.A2024-06-05. Service bulletin. On Board Diagnosis (OBD) Monitor Readiness Information
Reference67A2024-03-18. Service bulletin. Emission Recall 67A D Truck Engine Calibration
Reference67A2024-01-16. Service bulletin. Emission Recall 67A - D Truck Engine Calibration
Recall06A2024-01-08. Service bulletin. Emissions Recall 06A - Vehicle Emission Control Information Label
Recall06A2023-10-30. Service bulletin. Emissions Recall 06A - Vehicle Emission Control Information Label