Lexus RX350 2018–2019 — technical service bulletin
Bulletin 20LC03 TI FINAL · NHTSA communication 10177612 · issued Jun 25, 2020
Technical service bulletin
communication type
Electrical System
component
2018–2019
model years
2
vehicle entries
Official summary
Ti: technical instructions for special service campaign 20lc03 engine control computer reprogram certain 2018 - 2019 rx 350, rx 350l
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.