Subaru Forester 2006–2010 — technical service bulletin
Bulletin WVM-23 · NHTSA communication 10038957 · issued Mar 23, 2011
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. A software problem is causing the catalytic converter to degrade when driving at high speeds. This will cause the engine light to come on. *rm
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.