Toyota Corolla 2023 — technical service bulletin
Bulletin 24TC03 · NHTSA communication 11005107 · issued Jun 10, 2024
Technical service bulletin
communication type
Electrical System
component
2023
model years
13
vehicle entries
Official summary
Technical instructions for special service campaign 24tc03 data communicaton module (dcm) update certain 2023 corolla, corolla cross, corolla hatchback, corolla hv, gr corolla, crown, highlander, highlander hv, prius, rav4, rav4 prime, rav4 hv, venza hv
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.