Toyota Avalon Hybrid 2021–2022 — technical service bulletin
Bulletin 22TC05 Technical · NHTSA communication 10220234 · issued Aug 17, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2021–2022
model years
8
vehicle entries
Official summary
Ti: technical instructions for special service campaign 22tc05 crankcase case vent
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.