# Service bulletin 21\-002\-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.

- Type: Service bulletin
- NHTSA id: 10136955
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: 21\-002\-14
- Manufacturer's date: 2014\-02\-14
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Shift Quality Improvements While in 4X4 Low\-Range Mode This bulletin involves flash reprogramming of the Transmission Control Module \(TCM\) with new software. Customers may indicate that the shift quality while in 4X4 low range mode does not meet their expectations.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10136955-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10136955-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 2014 DODGE DURANGO

## Other bulletins for the same vehicles and component

- [9004509](/bulletins/10212248.md), 2022-05-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:FILTER/SCREEN. Oil Filter If a Mopar Oil Filter is not available, use a filter that meets or exceeds USCAR36 specification and is compatible with semi and full synthetic oils. Recommended Brands: Wix, Purolator, and NapaGold
- [18\-056\-16](/bulletins/10181479.md), 2020-10-26, Service bulletin: ENGINE; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. Flash: 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. These symptoms are broken down by vehicle: 2015 WK 3.0L engine \(Sales Code EHD\) · \*\* P0456 \- EVAP System Small Leak.\*\* · Enhancements to remote engine start. 2015 WK 5.7L engine \(Sales Code EZH\) · \*\* P0456 \- EVAP System Small Leak.\*\* · U0140\-00 \- Lost Communication with Body Control Module \(BCM\). · Enhancements to improve a slight lag or hesitation during Multi Displacement System \(MDS\) mode transitions. · Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. 2014 WD 5.7L engine \(Sales Code EZH\) · Enhancements to improve a slight drop in engine RPM when the vehicle is shifted to reverse or drive within 3 seconds of a cold start. 2015 WD 5.7L engine \(Sales Code EZH\) · \*\* P0456 \- EVAP System Small Leak.\*\* · Enhancements to remote engine start.
- [21\-012\-14 REV. A](/bulletins/10141216.md), 2018-06-18, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. Transmission Shift Enhancements \- Adaptation Drive Learn Procedure This bulletin involves performing a subjective shift quality rating when customers experience poor shift quality and if necessary, performing the transmission adaptation learn procedure. In addition, this bulletin involves performing transmission adaptation learn procedure when the transmission is repaired/replaced and/or the valve body/TCU assembly \(mechatronic\) is replaced, or when the adaptation memory cells are cleared with the wiTECH diagnostic scan tool. Customers may indicate that their transmission shift quality does not meet their expectations.
- [18\-008\-14 REV. A](/bulletins/10137025.md), 2018-05-21, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Flash: MIL Illumination P0300\- Multiple Cylinder Misfire and/or P0573\- Brake Switch 1 Stuck Off This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. A small number of customers may experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes have been set: \(only applies to 5.7L engines\) P0573 \- Brake Switch 1 Stuck OffThe following powertrain system improvements/enhancements are also included in this software release: Corrected a generic scan tool display issue regarding Mode 6 data accuracy. \(only applies to 5.7L engines\)
- [21\-012\-14](/bulletins/10069309.md), 2016-06-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [21\-012\-14REV.A](/bulletins/10069308.md), 2016-06-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [21\-030\-14](/bulletins/10063726.md), 2016-05-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [21\-030\-14REV.A](/bulletins/10063725.md), 2016-05-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [SB\-18\-008\-14](/bulletins/10055340.md), 2014-05-10, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ENGINE; ELECTRICAL SYSTEM:SOFTWARE. JEEP/DODGE: DIAGNOSTIC TROUBLE CODES \(DTCS\) ARE SET ON MULTIPLE CYLINDER MISFIRE, BRAKE SWITCH 1 STUCK OFF CAUSING MALFUNCTION INDICATOR LAMP \(MIL\) TO ILLUMINATE AND NEW SOFTWARE FOR SELECTIVE ERASING AND REPROGRAMMING OF POWERTRAIN CONTROL MODULE \(PCM\). MODEL 2014 GRAND CHEROKEE, DURANGO. \*PE

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