# Service bulletin 21\-005\-13

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: 10136856
- Published by NHTSA: 2018\-05\-21
- Manufacturer's number: 21\-005\-13
- Manufacturer's date: 2013\-05\-17
- NHTSA component: POWER TRAIN

## NHTSA's summary

FLASH: MIL Illumination For P0730 \- Incorrect Gear Ratio This bulletin involves updating the Transmission Control Module \(TCM\) software. Customers may indicate that the MIL is illuminated and/or the transmission went into limp\-in. Upon further investigation, Diagnostic Trouble Code \(DTC\) P0730 \- Incorrect Gear Ratio is either active or stored in the PCM?s memory.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2013/MC-10136856-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10136856-0001.pdf)

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

## Components

Transmission and driveline

## Trouble codes named

P0730

## Vehicles listed

- 2012 CHRYSLER 300C
- 2012 DODGE CHALLENGER
- 2012 DODGE CHARGER
- 2012 DODGE DURANGO
- 2012 JEEP GRAND CHEROKEE
- 2012 JEEP WRANGLER

## Recalls for the same vehicles and component

- [2016184](/recalls/tc/2016184.md), 2016-04-26: Powertrain
- [16V240000](/recalls/nhtsa/16V240000.md), 2016-04-25: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\)
- [13V234000](/recalls/nhtsa/13V234000.md), 2013-06-04: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES; STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

## Other bulletins for the same vehicles and component

- [S2621000003 REV.A](/bulletins/11030138.md), 2026-03-18, Service bulletin: POWER TRAIN. The vehicle will exhibit a service transmission/check engine warning indicator for the following transmission models: 845RE, 8HP45, 850RE, 8HP50, 8HP70, 8HP75, 8HP75\-PHEV, 8HP75\-LCV, 8HP90, 8HP95. Transmissions may exhibit the following diagnostic codes: P07E4, P1DB2, P0716, P1B14, P0733, P1D90, P1DB7, P1B13.
- [101232](/bulletins/11010205.md), 2024-11-07, Service bulletin: POWER TRAIN. Plate \- Planetary
- [2103314](/bulletins/10229966.md), 2023-01-17, Service bulletin: POWER TRAIN. MIL Illumination For P0730 And Transmission Shift Enhancements
- [1805114](/bulletins/10229881.md), 2023-01-17, Service bulletin: ELECTRICAL SYSTEM; POWER TRAIN. Flash: J8 Mining Vehicle Speed Limiting This bulletin involves selectively erasing and reprogramming the Powertrain Control Module \(PCM\) with new software. A small number of J8 Vehicles built as over\-the\-road units for non\-reg BUX markets and sold to US\-based mining operations with the intent of re\-programming the diesel PCM to limit vehicle\-speed in the mining environment. The discretion of which mining flash is to be used is left to the discretion of the operator.
- [2101314](/bulletins/10229858.md), 2023-01-17, Service bulletin: POWER TRAIN. Transmission Oil Cooler Tube
- [2101214](/bulletins/10229857.md), 2023-01-17, Service bulletin: POWER TRAIN. Transmission Shift Enhancements \- Adaptation Drive Learn Procedure
- [2101314\-1](/bulletins/10229841.md), 2023-01-17, Service bulletin: POWER TRAIN. N28 Transmission Oil Cooler Tube Interim Repair
- [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.
- [2102016](/bulletins/10228120.md), 2022-12-19, Service bulletin: EQUIPMENT; BACK OVER PREVENTION; POWER TRAIN. Manual Transmission Shifter Noise This bulletin involves greasing or replacing the manual transmission rear shifter bushing. Customers may experience a clunk, squeak, or similar noise heard from center console area while shifting.
- [V51](/bulletins/10228020.md), 2022-12-19, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); UNKNOWN OR OTHER. Customer Satisfaction Notification V51 Reprogram Powertrain Control Module

JSON: [/v1/bulletins/10136856](/v1/bulletins/10136856)

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