Toyota Avalon Hybrid 2017–2020 — technical service bulletin
Bulletin 21TC03_Fuel Pump · NHTSA communication 10201344 · issued Jul 15, 2021
Technical service bulletin
communication type
Fuel System, Gasoline
component
2017–2020
model years
8
vehicle entries
Official summary
Ti: technical instructions for special service campaign 21tc03 low-pressure fuel pump
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.