Lexus GS 350 2016–2017 — technical service bulletin
Bulletin L-SB-0008-18 · NHTSA communication 10130001 · issued Feb 23, 2018
Technical service bulletin
communication type
Engine
component
2016–2017
model years
4
vehicle entries
Official summary
TSB: Some 2016 ? 2017 model year GS 350 and RX 350 vehicles may exhibit a chirping noise from the high-pressure fuel pump at idle. Follow the Repair Procedure in this bulletin to address this condition.
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.