Toyota Highlander 2017–2019 — technical service bulletin
Bulletin T-SB-0018-19 · NHTSA communication 10155232 · issued Feb 15, 2019
Technical service bulletin
communication type
Fuel System, Gasoline
component
2017–2019
model years
3
vehicle entries
Official summary
TSB: Some 2017 ? 2019 model year Highlander 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.
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.