# Service bulletin WVT\-30

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: 10034046
- Published by NHTSA: 2010\-10\-13
- Manufacturer's number: WVT\-30
- Manufacturer's date: 2010\-08\-01
- NHTSA component: ELECTRICAL SYSTEM:SOFTWARE

## NHTSA's summary

SUBARU SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ENGINE CONTROL MODULE \(ECM\) REPROGRAMMING. A MODIFICATION TO THE ENGINE CONTROL MODULE \(ECM\) SOFTWARE LOGIC HAS BEEN DEVELOPED TO IMPROVE THE PERFORMANCE OF THE EMISSION CONTROL SYSTEM. THIS SOFTWARE CHANGE WILL NOT ADVERSELY AFFECT FUEL ECONOMY OR PERFORMANCE. CSC LETTER WAS REC'D. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Software

## Vehicles listed

- 2011 SUBARU IMPREZA
- 2011 SUBARU LEGACY
- 2011 SUBARU OUTBACK

## Other bulletins for the same vehicles and component

- [078414](/bulletins/10233432.md), 2023-04-03, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. Revised B1650 Diagnostics and ODS Rezeroing Procedure
- [15\-162\-13](/bulletins/10087561.md), 2016-12-30, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE FOR REPLACING THE BLUETOOTH HANDS\-FREE MICROPHONE WHICH IS NOW AVAILABLE AS AN INDIVIDUAL SERVICE PART \(SEPARATE FROM THE MAP LIGHT ASSEMBLY\). THE REPLACEMENT MICROPHONE IS DESIGNED TO REDUCE BACKGROUND NOISE WHEN USING THE HANDS\-FREE TELEPHONE FEATURE.
- [15\-162\-13R](/bulletins/10084418.md), 2016-11-18, Service bulletin: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM\(GLOBAL POSITIONING SYSTEM\); ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN PROVIDES A SERVICE PROCEDURE FOR REPLACING THE BLUETOOTH HANDS\-FREE MICROPHONE WHICH IS NOW AVAILABLE AS AN INDIVIDUAL SERVICE PART \(SEPARATE FROM THE MAP LIGHT ASSEMBLY\). THE REPLACEMENT MICROPHONE IS DESIGNED TO REDUCE BACKGROUND NOISE WHEN USING THE HANDS\-FREE TELEPHONE FEATURE.
- [16\-93\-15](/bulletins/10080781.md), 2016-09-22, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE. THIS BULLETIN ANNOUNCES THE AVAILABILITY OF REPROGRAMMING FILES FOR OPTIMIZING THE TCM LOGIC USED IN THE LISTED CVT\-EQUIPPED VEHICLES. THIS NEW LOGIC PROVIDES ENHANCED CONTROL OF THE CVT PRIMARY PULLEY OIL PRESSURE CIRCUIT FOR AN INCREASED LEVEL OF PERFORMANCE DURING STOP\-AND\-GO DRIVING. THIS REPROGRAMMING MUST BE INSTALLED ANYTIME A CVT ASSEMBLY IS REPLACED WITH A NEW OR REMANUFACTURED CVT ASSEMBLY.
- [SB\-11\-135\-13](/bulletins/10054223.md), 2014-01-03, Service bulletin: ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUBARU: ECM IS AVAILABLE FOR REPROGRAMMING FILES TO ADDRESS FALSE CEL/MIL ILLUMINATION AND THE DIAGNOSTIC TROUBLE CODE \(DTC\) P050A RESULTED FROM SPECIFIC CLUTCH OPERATIONS AND/OR DRIVING PATTERNS AFTER STARTING ENGINE. MODEL 2011\-2013 LEGACY, FORESTER, IMPREZA. \*PE
- [WQC\-39](/bulletins/10047519.md), 2012-12-04, Service bulletin: ELECTRICAL SYSTEM:SOFTWARE; ENGINE. SUBARU: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SOFTWARE CHANGE WILL NOT AFFECT FUEL ECONOMY OR PERFORMANCE, EVEN THOUGH A CORRECTION, FOR ENGINE CONTROL MODULE, HAS BEEN DEVELOPED FOR THE DEFICIENCY IN OBDII SYSTEM THERMOSTAT MONITORING LOGIC. MODELS 2011\-2012 LEGACY, OUTBACK, IMPREZA SEDAN, WAGON, FORESTER, TRIBECA AND 2013 BRZ. \*PE UPDATED 1/31/13. \*PE

JSON: [/v1/bulletins/10034046](/v1/bulletins/10034046)

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