# Service bulletin 18\-027\-16

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.

- Type: Service bulletin
- NHTSA id: 10074922
- Published by NHTSA: 2016\-06\-22
- Manufacturer's number: 18\-027\-16
- Manufacturer's date: 2016\-03\-30
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

SUMMARY TO BE PROVIDED ON A FUTURE DATE.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Software

## Vehicles listed

- 2016 RAM 1500
- 2016 RAM 3500

## Recalls for the same vehicles and component

- [18V332000](/recalls/nhtsa/18V332000.md), 2018-05-17: ELECTRICAL SYSTEM:SOFTWARE; VEHICLE SPEED CONTROL:CRUISE CONTROL; ELECTRICAL SYSTEM:WIRING

## Other bulletins for the same vehicles and component

- [0804616](/bulletins/10224659.md), 2022-10-24, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. This Bulletin involves updating the \(ASCM\) software.
- [1802716](/bulletins/10215140.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Diagnostic And System Improvements.
- [1802716 REV A](/bulletins/10215139.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Diagnostic And System Improvements.
- [1800616](/bulletins/10215118.md), 2022-07-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Powertrain Diagnostic And System Enhancements.
- [18\-027\-16 REV. B](/bulletins/10181475.md), 2020-10-26, Service bulletin: POWER TRAIN; FUEL SYSTEM, DIESEL; ENGINE; ELECTRICAL SYSTEM:SOFTWARE. Flash: 6.7L Diagnostic And System Improvements This bulletin involves reprogramming the Engine Control Module/Powertrain Control Module \(ECM/PCM\) with the latest available software. The following DTCs have been changed from a one trip fault to a two trip fault: · P0421 \- Catalyst 1 Efficiency Below Threshold Bank 1. · P2280 \- Air Flow Restriction / Leak Between Air Cleaner And MAF. · P203C \- \(Diesel Exhaust Fluid\) Reductant Level Sensor Circuit Low. · P208D \- \(Diesel Exhaust Fluid\) Reductant Pump Control Circuit High. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation a technician may find the following DTCs set in the PCM memory: · \*\*P0128 \- Thermostat Rationality Improvements.\*\* · P2281 \- Air Leak Between MAF and Throttle Body. · P218F \- Reductant No Flow Detected. · P0218 \- Transmission High Temperature Operation Activated \(68RFE Only\). · P0868 \- Line Pressure Low, MIL Action \(68RFE Only\). · U110E \- Lost Ambient Temperature Message. · P205E \- \(Diesel Exhaust Fluid\) Reductant Tank Temperature Sensor Circuit Intermittent \(setting when the block heater is plugged in\). In addition to addressing the above DTCs, the following powertrain system improvements/enhancements are also included in this software release: · \*\*Engine Noise Improvements. · Engine Hesitation Improvement. · Improved Engine Fuel Economy.\*\* · Reduction in engine noise during regeneration at idle. · 68RFE Transmission Overall Shift Quality Improvements. · Test results fix for partial range misfire \(68RFE Only\). · Ambient Air Temperature Improvements. · Stationary Desoot with wiTECH Fix. · OBD Misfire Monitoring Improvement \(68RFE Only\).
- [21\-010\-20](/bulletins/10173369.md), 2020-04-06, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Control Module \(TCM\) Updates This bulletin involves reprogramming the TCM with the latest available software. Customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician may find the following Diagnostic Trouble Code \(DTC\) has been set:P0731 \- Gear Ratio Error In 1st. The customer may describe the following condition:Rough or harsh shifting during coastdown to a stop \(might also be described as a 2\-1 bump\)\(Sales Code EZH\). In addition, the following software enhancements are also available:2\-1 coast down improvement\(Sales Code EXF\). 3\-2 coast down improvement\(Sales Code EXF\). Improvements to 5\-3 downshift with pedal to improve 5\-3\-2 shifts\(Sales Code EXF\). 6\-5 coast down improvement\(Sales Code EXF\). 2\-3 upshift with less than 30% pedal\(Sales Code EXF\). Clutch C adaption stability \(improves shift quality for new transmissions on gear shifts that use Clutch C\)\(Sales Code EXF\). Garage shift to D improvements\(Sales Code EXF\). Rolling garage shift\(Sales Code EXF\). Implementation of End Of Line \(EOL\) adaption to improve shift quality on brand new transmissions. Diagnostics improvements\(Sales Codes ERB, ERT and EZH\). Improve shift quality on brand new transmission\(Sales Code EZH\). Improvement to first 1\-2 shift after start\(Sales Code EZH\). Improvement to 1\-2 shift, especially for colder operating temperatures\(Sales Code EZH\). 2\-3 shift feel improvement especially for colder operating temperatures\(Sales Code EZH\). Coastdown shift improvements \(6\-5, 5\-4, 4\-3, 3\-2 and 2\-1\)\(Sales Code EZH\). Coastdown shift feel refinement for double downshifts\(Sales Code EZH\). Kickdown improvements for the following shifts \(7\-6\-5\-4\-3, 8\-6\-5\-4, 6\-3\-2, 5\-3\-2 and 4\-2\)\(Sales Code EZH\). Improvement to 4\-2\-1\(Sales Code EZH\). Improved 7th gear upshift timing. Downhill engine braking improvements.
- [08\-114\-15 REV A](/bulletins/10159965.md), 2019-05-20, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. Radio Software Enhancements This bulletin involves updating the radio's software. CAUTION: Confirm the correct radio flash file to the applicable model and family vehicle before flashing. A customer may experience one or more of the following: ? Radio display screen intermittently may go blank. ? Radio display screen may lock up. ? Back up display may not turn off. ? Loss of radio memory for skipped channels or incorrectly displaying skipped channels in the menu list. ? Charging schedule showing in the setting menu \(FF BEV only\). ? Korean language was not supported \(APAC \- Korea only\). Enhancement: ? Removing the charging schedule from showing in the setting menu \(FF BEV only\). ? Adding Korean language support \(APAC \- Korea only\).
- [08\-114\-15](/bulletins/10159942.md), 2019-05-20, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. Radio Software Enhancements This bulletin involves updating the radio's software. CAUTION: Confirm the correct radio flash file to the applicable model and family vehicle before flashing. A customer may experience one or more of the following: ? Radio display screen intermittently may go blank. ? Radio display screen may lock up. ? Back up display may not turn off. ? Loss of radio memory for skipped channels or incorrectly displaying skipped channels in the menu list. ? Charging schedule showing in the setting menu \(FF BEV only\). ? Korean language was not supported \(APAC \- Korea only\). Enhancement: ? Removing the charging schedule from showing in the setting menu \(FF BEV only\). ? Adding Korean language support \(APAC \- Korea only\).
- [08\-028\-16](/bulletins/10142203.md), 2018-06-25, Service bulletin: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\); ELECTRICAL SYSTEM:SOFTWARE. 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.
- [21\-017\-16](/bulletins/10139970.md), 2018-06-11, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM:SOFTWARE. Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module \(TCM\) with the latest available software. Some customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation, a technician may find the following Diagnostic Trouble Code \(DTC\) stored in the TCM memory: · P0731 \- Gear Ratio Error In 1st. The following enhancements are included in the software update: · Improved general shift quality. · Improved 7th gear upshift timing. · Downhill engine braking improvements.

JSON: [/v1/bulletins/10074922](/v1/bulletins/10074922)

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