Subaru Forester 2006–2010 — technical service bulletin
Bulletin WVM23R · NHTSA communication 10131701 · issued Feb 6, 2017
Technical service bulletin
communication type
Engine and Engine Cooling
component
2006–2010
model years
11
vehicle entries
Official summary
REVISED. CA PZEV SPEC MODELS ONLY. Subaru of America, Inc. (SOA) has determined that vehicles affected by this Service Program require 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. (The ?Check Engine? light will illuminate to alert the driver if the catalytic converter efficiency has degraded beyond an acceptable level and if the vehicle may be releasing air pollutants that exceed Feder
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.