Subaru Forester 2006–2010 — technical service bulletin
Bulletin WVU31R · NHTSA communication 10131702 · issued Feb 6, 2017
Technical service bulletin
communication type
Electrical System
component
2006–2010
model years
20
vehicle entries
Official summary
2.5 Liter N/A engine only. REVISED. Subaru of America, Inc. has determined that vehicles affected by this Service Program require ECM reprogramming. A modification to the Engine Control Module 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. This software update is intended to improve vehicle emissions when the vehicle is operated in cold weather and the engine is turned off and restarted within short periods of time such as in several minute intervals. The A/F sensor contain
Vehicles covered
- 2006 Subaru Forester
- 2007 Subaru Forester
- 2008 Subaru Forester
- 2009 Subaru Forester
- 2010 Subaru Forester
- 2006 Subaru Impreza
- 2007 Subaru Impreza
- 2008 Subaru Impreza
- 2009 Subaru Impreza
- 2010 Subaru Impreza
- 2006 Subaru Legacy
- 2007 Subaru Legacy
- 2008 Subaru Legacy
- 2009 Subaru Legacy
- 2010 Subaru Legacy
- 2006 Subaru Outback
- 2007 Subaru Outback
- 2008 Subaru Outback
- 2009 Subaru Outback
- 2010 Subaru Outback
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.