Subaru BRZ 2013 — technical service bulletin
Bulletin 02-151-14 · NHTSA communication 10084477 · issued Apr 22, 2014
Technical service bulletin
communication type
Engine
component
2013
model years
1
vehicle entries
Official summary
Revised valve train parts to reduce a warm engine tapping sound from the left cylinder head
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.