Service bulletin 18-072-14

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	10139893
Published by NHTSA	2018-06-11
Manufacturer's number	18-072-14
Manufacturer's date	2014-12-11
NHTSA component	POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

Flash: Compressed Natural Gas (CNG) Powertrain Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. The following powertrain system improvements/enhancements are included in this software release. Software to prevent Malfunction Indicator Lamp (MIL) illumination with no defect found for Diagnostic Trouble Code (DTC) P0481 - Cooling Fan 2 Control Circuit/Open setting in the PCM. Harsh shift improvement when shifting from drive to reverse.

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, Software

Trouble codes named

P0481

Vehicles listed
RAM 2500	2014

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

Recalls for the same vehicles and component
18V332000	2018-05-17. ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING

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
0804616	2022-10-24. Service bulletin. This Bulletin involves updating the (ASCM) software.
08-008-14	2022-08-29. Service bulletin. RA2 RG2 Or RJ2 Radio Update To Prevent Display Screen Lockup This bulletin involves updating the radio's software or replacing the radio if required. A customer may experience the radio display screen is locked on the Ram logo. This software update is to prevent this condition from occurring. Vehicles equipped with satellite radio (sales code RSD) may have a condition were the radio may reset a few times during a drive cycle. This condition is very intermittent.
08-008-14 REV. B	2022-08-22. Service bulletin. RA2 RG2 Or RJ2 Radio Update To Prevent Display Screen Lockup This bulletin involves updating the radio's software or replacing the radio if required. A customer may experience the radio display screen is locked on the Ram logo. This software update is to prevent this condition from occurring. Vehicles equipped with satellite radio (sales code RSD) may have a condition were the radio may reset a few times during a drive cycle. This condition is very intermittent.
18-096-16	2022-08-15. Service bulletin. Flash: 6.4L Diagnostic And System Improvements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. NOTE: This bulletin contains optional software update that should only be used in situations where the customer is specifically complaining of a Drone Noise, Shudder, Pulsation, or Vibration under light throttle applications while vehicle is operating in MDS/ECO mode. There will be two separate software options displayed on the wiTECH flash tab. The software file released for this condition contains the verbiage ?OPTIONAL?. The other file is the standard software that does not contain improvements for the Drone/Shudder concern. If for some reason the customer finds this shudder improvement objectionable, the PCM software may be returned/reflashed to the standard version. Both software versions will address the remaining conditions noted in the bulletin. A small number of customers may experience a surge, shudder or pulsation type sensation when driving on smooth road surfaces at highway speeds of 64-129 km/h (40-80 mph). During normal diagnostics a technician may find one or more of the following Diagnostic Trouble Codes (DTCs) present: · P0335 - Crankshaft Position Sensor Circuit. · P0300 - Multiple Cylinder Misfire, cold Idle misfire (DJ,D2 or DD vehicles only). · P030X - Cylinder Misfire (any cylinder). · P04D1 - Cooled EGR Temperature Sensor Circuit High. · P04D0 - Cooled EGR Temperature Sensor Circuit Low. · P2504 - Charging System Output High. · P0441 - Evap Purge System Performance. · P2066 - Fuel Level Sensor 2 Performance. · P0401 - EGR System Performance (DJ/D2 vehicles only). · P2096 - Downstream Fuel Trim System 1 Lean (DD/DP vehicles only). · P2098 - Downstream Fuel Trim System 2 Lean (DD/DP vehicles only). ·
1804215	2022-07-05. Service bulletin. Diagnostic And System Improvements.
08-103-15	2018-12-17. Service bulletin. RG3 RG4 RJ3 RJ4 Radio Enhancements This bulletin involves inspecting and updating the radio software, if required. ? Duplicate song titles may be displayed in USB mode. ? Last track is displayed but next track is being played. ? SD, USB or BTSA modes may become non-functional for a given ignition cycle. ? Track names may be displayed twice in USB or SD media modes. ? Voice Recognition command ?Set Temperature? may not respond in Fahrenheit. United Kingdom (UK) Vehicle only. ? DAB (Digital Audio Broadcast) is inoperative. ? Wrong routing for addresses with a longitude between 0 and -1 degrees. ? Speed Camera UK & Spain complaining that the speed camera feature was not available with the latest MY14 software. ? DAB preset list on the top of the screen doesn't change while scrolling with steering controls. ? Rear view camera jitter. ? Tuner reception software enhancements. ? HVAC temperature control enhancements. ? SRT soft button missing for radios when vehicle is equipped with SRT feature (EMEA /LATAM markets only). ? Battery drain due to the radio and cluster back-lighting staying on. ? Postal Code smart speller logic enhancements (EMEA markets only). ? AM/FM steering wheel mode switch button not working (LATAM markets only). ? Navigation Lockout Disable while vehicle is in motion (EMEA markets only). ? Removed network status indicators for SRT/APPS. ? Voice Recognition (VR) says 'cancel' when starting (App) applications. ? iPod would not resume playing after a VR session or phone call. ? Removed the cell signal indicators in the SRT and Apps button on non-US vehicles. ? rear camera may show a black screen for 3 seconds upon going to reverse. ? Navigation would not start or would lose position. ? Removal of parental control under Apps menu. ? Turn by Turn navigation in the cluster set to ON by default. ? Transfer button does not pick-up and transfer incoming call. ? Some Russian letters are caps when they sho
08-028-16	2018-06-25. Service bulletin. RE2 RE6 RB5 RB6 Radio Software Enhancements This bulletin involves updating the radio software and navigation if equipped. A customer may experience one or more of the following conditions: · Radio display screen will lock up and reset intermittently. · Incorrect routing directions to fuel stations when using Travel Link. · Unable to turn on heated seats; icon is greyed out. · Navigation screen goes blank. · Navigation system freezes/locks up. · Vehicles with Mopar special edition radio will update radio?s splash screen. · Navigation icon shows the vehicle going backward when it?s moving forward.
18-053-14 REV. B	2018-06-11. Service bulletin. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows:Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect is Present For The Following Diagnostic Trouble Codes (DTCs). These Faults Have Been Changed From A One Trip Fault To A Two Trip Fault: P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. U110E - Lost Ambient Temperature Message. P049D - EGR Control Position Exceeding Learning Limit. P226C - Turgocharger Boost Control ?A? Slow Response.The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: U1A24 - Lost Communication With Ammonia Sensor.Improvements To Prevent Or Reduce Malfunction Indicator Lamp (MIL) Illumination When No Defect Is Present For: U3017 - Control Module Timer/Clock Performance P0087 - Fuel Rail Pressure Too Low P2281 - Air Leak Between MAF And Throttle Body P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1 P0128 - Thermostat Rationality. In cold ambient temperatures P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration P24A5 - EGR Cooler Bypass Bank 1 Control Stuck P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance U1421 - Implausible Ignition Key Off Time Received P0420 - Catalyst Efficiency Below Threshold P026B - Injection Timing Performance P04DB - Crankcase Ventilation System Disconnected P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1 P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1 P2002 - Diesel Particulate Filter Efficiency Below Threshold P0604 - Internal Control Module RAM P1451 - Diesel Particulate Filter System Performance.Other Updates Included:
14-001-14 REV. B	2018-06-11. Service bulletin. Fuel Gelling in Cold Ambient Temperatures This bulletin involves reconfiguring the Body Control Module (BCM). Some customers may experience a Malfunction Indicator Lamp (MIL) due to fuel related Diagnostic Trouble Code (DTC) and/or may have a hard or no start condition due to fuel gelling in cold ambient temperatures (20°F or -7°C) or below. DTCs, such as P0087, P0191 or P026B (or other DTCs) may have been set.frame mounted fuel filter heater not to function. The condition is due to a configuration setting in the Body Control Module (BCM).
18-053-14 REV. A	2018-06-11. Service bulletin. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software. Several software improvements are available for vehicles equipped with a Cummins 6.7L turbo diesel. They are as follows: Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For The Following DTCs. These Faults Have Been Changed From One Trip Faults To Two Trip Faults: * P0201 - P0206 - Fuel Injector X Circuit Open Fault Codes. * U110E - Lost Ambient Temperature Message. * P049D - EGR Control Position Exceeding Learning Limit. * P226C - Turgocharger Boost Control ?A? Slow Response. The Following DTC Has Been Changed From A Two Trip Fault To One Trip Fault: * U1A24 - Lost Communication With Ammonia Sensor. Improvements To Prevent Or Reduce Unnecessary Malfunction Indicator Lamp (MIL) Illumination For: * P0087 - Fuel Rail Pressure Too Low. * P2281 - Air Leak Between MAF And Throttle Body. * P0544 - Exhaust Gas Temperature Sensor Circuit - Sensor 1/1. * P0128 - Thermostat Rationality. In cold ambient temperatures. * P214D - SCR NOx Catalyst Outlet Temperature Too High During Particulate Filter Regeneration. * P24A5 - EGR Cooler Bypass Bank 1 Control Stuck. * P040B - Exhaust Gas Recirculation Temperature Sensor ?A? Circuit Performance. * U3017 - Control Module Timer/Clock Performance. * U1421 - Implausible Ignition Key Off Time Received. * P0420 - Catalyst Efficiency Below Threshold. * P026B - Injection Timing Performance. * P04DB - Crankcase Ventilation System Disconnected. * P1C55 - NOx Sensor Intermittent - Bank 1 Sensor 1. * P202E - Diesel Exhaust Fluid (DEF) Reductant Injector Performance. * P20EE - SCR NOx Catalyst Efficiency Below Threshold - Bank 1. * P2002 - Diesel Particulate Filter Efficiency Below Threshold. * P0604 - Internal Control Module RAM. * P1451 - Diesel Particulate Filter System Performance. Other Updates Included: * Urea system cali