Subaru Legacy 2015–2018 — technical service bulletin
Bulletin WUB-87 · NHTSA communication 10161833 · issued May 28, 2019
Technical service bulletin
communication type
Engine
component
2015–2018
model years
8
vehicle entries
Official summary
Subaru of America, Inc. (Subaru) is initiating a service campaign for certain 2015-2018 Legacy and Outback 2.5L SULEV vehicles. This campaign involves replacement of the front exhaust pipe assembly, which includes the catalytic converter. Due to an improper part number supersession for the EPF assembly, certain SULEV vehicles which had the EPF replaced by an authorized Subaru retailer may have had a non-SULEV specification part installed. Although there is no safety risk or noticeable change in vehicle operation, performance of the emission system may be insufficient to comply with required sp
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.