Lexus RX350 2017–2018 — technical service bulletin
Bulletin L-TT-0247-18 · NHTSA communication 10145743 · issued Aug 29, 2018
Technical service bulletin
communication type
Power Train
component
2017–2018
model years
4
vehicle entries
Official summary
TT: Some 2017-2018 model year RX vehicles may exhibit a click type noise that can be heard from the front wheel hub area when shifting gears from Drive to Reverse or Reverse to Drive, or when accelerating from a stop.
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.