# Service bulletin 166399R

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: 10234261
- Published by NHTSA: 2023\-04\-17
- Manufacturer's number: 166399R
- Manufacturer's date: 2012\-12\-12
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

## NHTSA's summary

Remanufactured Automatic Transaxle Program

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2012/MC-10234261-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2012/MC-10234261-9999.pdf)

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

## Components

Transmission and driveline, Automatic transmission, Transmission control module

## Vehicles listed

- 1990 to 1994 SUBARU DL
- 1995 to 1997 SUBARU FORESTER
- 1998 to 2012 SUBARU FORESTER
- 1990 to 1994 SUBARU GL
- 1990 to 1993 SUBARU GL\-10
- 1990 SUBARU IMPREZA
- 1993 to 2012 SUBARU IMPREZA
- 2008 to 2009 SUBARU IMPREZA STI
- 1990 to 1993 SUBARU SUBARU

## Recalls for the same vehicles and component

- [02V282000](/recalls/nhtsa/02V282000.md), 2002-10-30: POWER TRAIN:AUTOMATIC TRANSMISSION

## Other bulletins for the same vehicles and component

- [169214](/bulletins/10234910.md), 2023-04-24, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Replacement AT Oil Cooler Piping
- [16\-102\-16](/bulletins/10111091.md), 2017-08-14, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. TSB: All Models Equipped with CVT Transmissions. This Service Information bulletin provides a new flow chart and additional diagnostic tools to assist Technicians with troubleshooting DTC P0841\- SECONDARY OIL PRESSURE SENSOR PERFORMANCE.
- [PM02](/bulletins/10093521.md), 2017-03-02, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. ADDITIONS TO REMANUFACTURED TRANSMISSION APPLICATIONS
- [16\-83\-12](/bulletins/10093202.md), 2017-02-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). THE PURPOSE OF THIS BULLETIN IS TO ANNOUNCE THE AVAILABILITY OF UPDATED TCM REPROGRAMMING FILES.
- [03\-67\-12R](/bulletins/10093129.md), 2017-02-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. SUBARU OF AMERICA, INC. HAS EXTENDED THE AVAILABILITY OF REMANUFACTURED CVT TRANSMISSIONS TO INCLUDE CROSSTREK, FORESTER AND IMPREZA APPLICATIONS. PLEASE CHECK APPLICATIONS AND AVAILABILITY THROUGH NORMAL PARTS CHANNELS PRIOR TO MAKING VEHICLE REPAIRS. RETAILERS ARE REQUIRED TO USE A REMANUFACTURED UNIT FOR ALL REPAIRS REIMBURSED BY SUBARU THAT REQUIRE A MAJOR REPAIR OR REPLACEMENT, EXCEPT IN THE CASE OF A “NEW” AND “IN\-STOCK” VEHICLE.
- [16\-92\-14](/bulletins/10092742.md), 2017-02-23, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. REPLACEMENT AT OIL COOLER PIPING \- THIS BULLETIN WILL PROVIDE INFORMATION REGARDING A CHANGE TO THE AUTOMATIC TRANSMISSION \(AT\) FLUID COOLER PIPING AND AN ADDITION TO THE SERVICE PROCEDURE USED DURING THEIR REPLACEMENT.
- [03\-70\-12R](/bulletins/10089957.md), 2017-01-31, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. REPAIR PROCEDURE FOR HIGH\-PITCHED SOUND FROM EXTENSION HOUSING AREA USING LATEST GENERATION PRODUCTION PARTS \- THIS BULLETIN PROVIDES PRODUCTION CHANGE, REPAIR PROCEDURE AND PARTS INFORMATION TO ADDRESS A CUSTOMER CONCERN OF A HIGH\-PITCHED SOUND COMING FROM THE TRANSMISSION EXTENSION HOUSING AREA.
- [03\-70\-12R](/bulletins/10079980.md), 2016-09-14, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. THIS BULLETIN PROVIDES PRODUCTION CHANGE, REPAIR PROCEDURE AND PARTS INFORMATION TO ADDRESS A CUSTOMER CONCERN OF A HIGH\-PITCHED SOUND COMING FROM THE TRANSMISSION EXTENSION HOUSING AREA. IN COLD TEMPERATURES, THERMAL CONTRACTION CAUSES SHRINKING OF THE TRANSMISSION CASE. IN HIGH TEMPERATURES, EXPANSION OF THE CASE OCCURS. THESE TEMPERATURE CHANGES AFFECT THE AMOUNT OF PRELOAD ON THE TRANSFER DRIVEN SHAFT BEARINGS. IN SOME RARE CASES, WHEN PRELOAD IS VERY NEAR THE LIMIT OF SPECIFICATION COMBINED WITH UNUSUAL DRIVING CONDITIONS, THIS THERMALLY\-INDUCED PRE\-LOAD CHANGE MAY CAUSE DAMAGE TO THE BEARINGS AND RESULT IN THE SOUND HEARD BY THE CUSTOMER. A CHANGE HAS BEEN MADE TO THE EXTENSION CASE AND A NEW “DISH PLATE” ADDED. THE MACHINING DEPTH OF THE EXTENSION CASE HAS BEEN INCREASED TO ACCOMMODATE THE NEW DISH PLATE. WHEN USED ALONG WITH A SELECTIVE THRUST WASHER, THE SPRING TENSION OF THE DISH PLATE HELPS TO MAINTAIN A CONSISTENT AMOUNT OF PRE\-LOAD ON THESE BEARINGS THROUGHOUT VARYING TEMPERATURE CONDITIONS.
- [16\-92\-14](/bulletins/10068350.md), 2016-05-23, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [16\-83\-12](/bulletins/10065060.md), 2016-05-13, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\). SUMMARY TO BE PROVIDED ON A FUTURE DATE.

JSON: [/v1/bulletins/10234261](/v1/bulletins/10234261)

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