Lexus RX 2016–2022 — technical service bulletin
Bulletin L-SB-0032-23 Rev · NHTSA communication 10245447 · issued Oct 2, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2016–2022
model years
14
vehicle entries
Official summary
TSB: Some 2016 ? 2022 model year RX 450h and 2018 ? 2022 model year RX 450hL vehicles may exhibit a squawk/knock noise from the engine compartment when depressing and/or releasing the brake pedal. 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.