Subaru Forester 2006–2010 — technical service bulletin
Bulletin SB-WVM-23 · NHTSA communication 10032512 · issued Oct 1, 2009
Technical service bulletin
communication type
Electrical System
component
2006–2010
model years
11
vehicle entries
Official summary
Subaru service campaign: see document search button for owner letter. Engine control module (ecm) reprogramming. Under certain severe driving patterns, such as high speed highway/uphill driving and/or accelerating with high engine revolutions, the efficiency of an affected vehicle's catalytic converter may begin to degrade beyond design parameters. Csc letter was received. *pe
Vehicles covered
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.