# Service bulletin 21\-005\-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: 10136957
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: 21\-005\-14
- Manufacturer's date: 2014\-02\-15
- NHTSA component: POWER TRAIN

## NHTSA's summary

Flash: Transmission Shift Enhancements This bulletin involves selectively erasing and reprogramming the Transmission Control Module \(TCM\) with new software. The customer may indicate that they may have experienced any of the following: ? Harsh 2 \- 1 downshift ? Delayed shifts while shifting from neutral to drive, neutral to reverse or park to reverse ? Audible squawk noise while the truck is shifting from 4\-3 ? Poor vehicle acceleration in first gear while fully loaded In addition to any of the previous, dealers may identify a P253D "PTO SENSE CIRCUIT HIGH? stored in the TCM?s memory.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10136957-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10136957-0001.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P253D

## Vehicles listed

- 2013 RAM 3500
- 2013 RAM 4500

## Recalls for the same vehicles and component

- [2017659](/recalls/tc/2017659.md), 2017-12-21: Powertrain
- [17V821000](/recalls/nhtsa/17V821000.md), 2017-12-20: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

## Other bulletins for the same vehicles and component

- [102307](/bulletins/11012351.md), 2025-01-06, Service bulletin: POWER TRAIN. GEAR \- REACTION SUN
- [102387](/bulletins/11012318.md), 2025-01-04, Service bulletin: POWER TRAIN. SEAL \- OUTPUT SHAFT
- [102389](/bulletins/11012314.md), 2025-01-04, Service bulletin: POWER TRAIN. SEAL \- OUTPUT SHAFT
- [101232](/bulletins/11010205.md), 2024-11-07, Service bulletin: POWER TRAIN. Plate \- Planetary
- [1803014](/bulletins/10231993.md), 2023-02-21, Service bulletin: POWER TRAIN; ELECTRICAL SYSTEM. 6.7L Diagnostic and System Improvements
- [1800114](/bulletins/10231989.md), 2023-02-21, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Powertrain Diagnostic And System Enhancements
- [S1623000028 Rev.](/bulletins/10231735.md), 2023-02-13, Service bulletin: VEHICLE SPEED CONTROL; BACK OVER PREVENTION; POWER TRAIN; VISIBILITY; PARKING BRAKE. Outside Power Fold Rearview Mirror Noise Or Loose At Pivot. Mirror Contacts Door Window Glass In The Folded Position.
- [1803014](/bulletins/10229985.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. reprogramming the Powertrain Control Module \(PCM\) with new software.
- [1803014](/bulletins/10229854.md), 2023-01-17, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN. Diagnostic and System Improvements
- [S1709000010](/bulletins/10229031.md), 2023-01-09, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). Customer complaints may include abnormal engine noise, rough idle, lack of power, misfire. Upon investigation, it may be found that there is excessive camshaft lobe wear/lifter wear \(roller failure\) on one or more cam lobes and that camshaft/lifter replacement is necessary.

JSON: [/v1/bulletins/10136957](/v1/bulletins/10136957)

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