# Service bulletin TT7252EN

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: 10155485
- Published by NHTSA: 2019\-04\-01
- Manufacturer's number: TT7252EN
- Manufacturer's date: 2012\-08\-22
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN

## NHTSA's summary

Tech Tip concerning Transmission Control Module \(TCM\) Recalibration for Kenworth and Peterbilt

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10155485-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10155485-9999.pdf)

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

## Components

Electrical system, Transmission and driveline, Software

## Vehicles listed

- ALLISON 2000 SERIES TRANSMISSION
- 2010 KENWORTH T300
- 2010 PETERBILT 330
- 2010 PETERBILT 335
- 2010 PETERBILT 337
- 2010 PETERBILT 340

## Other bulletins for the same vehicles and component

- [13\-049](/bulletins/10154733.md), 2019-03-18, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Information: Bendix ACOM Software version 6.16.5.0 for diagnostics may introduce an unrecoverable error. Notice to dealers to replace this version with older software version until Bendix introduces new version.
- [SB\-E\-043](/bulletins/10042727.md), 2012-01-07, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. PETERBILT TRUCK: SOFTWARE UPDATE FOR ENGINE CONTROL UNIT \(ECU\) AND AFTERTREATMENT CONTROL UNIT IS AVAILABLE FOR CERTAIN VEHICLES THAT ARE ELIGIBLE. \*PE
- [RN\-810\-1](/bulletins/10034709.md), 2011-01-06, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. PETERBUILT SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. CERTAIN VEHICLES BUILT BETWEEN 12/4/09\-8/17/10 WERE MANUFACTURED WITH DEFECTIVE INTRUMENTATION SOFTWARE. THE SOFTWARE DEFECT MAY INTERMITTENTLY RESULT IN AN ODOMETER THAT DOES NOT ADVANCE WHILE THE VEHICLE TRAVELS. NEW SOFTWARE WILL BE INSTALLED TO CORRECT THIS CONDITION. NO MODELS WERE LISTED. CSC LETTER WAS RECEIVED. \*PE
- [TIB\-E\-010](/bulletins/10034707.md), 2011-01-05, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL. KENWORTH SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. PACCAR PX\-6 AND PX\- 8 ENGINE SOFTWARE AND AFTERTREATMENT UPDATES. THE IDENTIFIED CHASSIS REQUIRE A PRODUCT IMPROVEMENT INVOLVING RECALIBRATION OF THE ENGINE CONTROL MODULE \(ECM\) AND THE AFTERTREATMENT DIESEL EXHAUST FLUID \(DEF\) CONTROLLER. SOME VEHICLES REPAIRS MAY ALSO INCLUDE REPLACING VARIOUS AFTERTREATMENT SYSTEM COMPONENTS. CSC LETTER HAS BEEN RECEIVED. \*PE

JSON: [/v1/bulletins/10155485](/v1/bulletins/10155485)

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