Service bulletin 18-008-20 REV. A

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)
Type	Service bulletin
NHTSA id	10187695
Published by NHTSA	2021-03-01
Manufacturer's number	18-008-20 REV. A
Manufacturer's date	2020-12-09
NHTSA component	FUEL SYSTEM, GASOLINE; EQUIPMENT; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

NHTSA's summary

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. DTCs have been set:Change DTC number from P0101-00 to P0109-00 - Mass Air Flow Sensor Performance. P015E - Excessive Time to Enter Closed Loop Fuel Timing Control. P0534-00 - AC Refrigerant System A Charge Loss. P26FB-00 - EGR Cooler Bypass Control Stuck Closed Bank 1. P04DB-00 - Crankcase Ventilation System Disconnected. P204F-00 - Reductant System Performance. P200A-00 - Intake Manifold Runner Performance - Bank 1. P200B-00 - Intake Manifold Runner Performance - Bank 2. P2D2D-00 - Cold Start Intake Manifold Runner Performance Bank 1. P2D2E-00 - Cold Start Intake Manifold Runner Performance Bank 2. P2199-00 - Intake Air Temperature Sensor 1 / 2 Correlation. P22FA-00 - NOX Sensor Performance - Slow Response High To Low Bank 1 Sensor 1. P2002-00 - Diesel Particulate Filter Efficiency Below Threshold. P0087-00 - Fuel Rail Pressure Too Low. P0128-00 - Thermostat Rationality(additional software enhancement). P0300-00 - Multiple Cylinder Misfire(cold ambient temperature). P0301-00 - Cylinder 1 Misfire(cold ambient temperature). P0302-00 - Cylinder 2 Misfire(cold ambient temperature). P0303-00 - Cylinder 3 Misfire(cold ambient temperature). P0304-00 - Cylinder 4 Misfire(cold ambient temperature). P0305-00 - Cylinder 5 Misfire(cold ambient temperature). P0306-00 - Cylinder 6 Misfire (cold ambient temperature). P01CB-00 - Cylinder 1 Injection Timing Performance - Over Retarded. P01CC-00 - Cylinder 1 Injection Timing Performance - Over Advanced. P01CD-00 - Cylinder 2 Injection Timing Performance - Over Retarded. P01CE-00 - Cylinder 2 Injection Timing Performance - Over Advanced. P01CF-00 - Cylinder 3 Injection Timing Performance - Over Retarded. P01D0-00 - Cylinder 3 Injection Timing Performance - Over Advan

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, Fuel system

Trouble codes named

P0087, P0101, P0109, P0128, P015E, P01CB, P01CC, P01CD, P01CE, P01CF, P01D0, P0300, P0301, P0302, P0303, P0304, P0305, P0306, P04DB, P0534, P2002, P200A, P200B, P204F, P2199, P22FA, P26FB, P2D2D, P2D2E

Vehicles listed
RAM 1500	2020

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

Recalls for the same vehicles and component
25V298000	2025-05-08. AIR BAGS; ELECTRICAL SYSTEM:WIRING
2022584	2022-10-14. Engine
22V767000	2022-10-13. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

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

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