Subaru BRZ 2013–2019 — technical service bulletin
Bulletin 02-133-12R · NHTSA communication 10154424 · issued Jan 31, 2019
Technical service bulletin
communication type
Engine
component
2013–2019
model years
7
vehicle entries
Official summary
The purpose of this bulletin is to clarify the proper installation direction of the valve springs used on the FA engine. The springs have a light blue paint mark identifier as shown in the chart below.
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.