Lexus GS 350 2013–2017 — technical service bulletin
Bulletin L-TT-0210-16 · NHTSA communication 10132645 · issued Oct 4, 2016
Technical service bulletin
communication type
Equipment
component
2013–2017
model years
15
vehicle entries
Official summary
TT: Some vehicles may continue to experience abnormal blend door noise when changing the HVAC temperature setting after the air conditioner radiator assembly (evaporator case) was replaced for the same condition.
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.