Toyota Corolla 2020 — technical service bulletin
Bulletin 22TC07 Technical · NHTSA communication 10224135 · issued Jul 7, 2022
Technical service bulletin
communication type
Engine
component
2020
model years
1
vehicle entries
Official summary
Ti: technical instructions for special service campaign 22tc07 engine ecu software update certain 2020 model year corolla vehicles
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.