Lexus RX350 2016–2022 — technical service bulletin
Bulletin L-SB-0046-18 Rev · NHTSA communication 10202486 · issued Sep 14, 2021
Technical service bulletin
communication type
Equipment Adaptive/mobility
component
2016–2022
model years
10
vehicle entries
Official summary
TSB: Some 2016 ? 2022 model year RX 350 and 2018 ? 2022 model year RX 350L vehicles may exhibit a knocking noise from the fuel tank area at idle, vehicle stationary, with a full tank of gasoline. Follow the Repair Procedure in this bulletin to address this 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.