Toyota Corolla 2023 — technical service bulletin
Bulletin 24TC03 · NHTSA communication 11005044 · issued Jun 10, 2024
Technical service bulletin
communication type
Electrical System
component
2023
model years
13
vehicle entries
Official summary
The Data Communication Module (DCM), which supports Toyota Connected Services in your vehicle, may not have activated properly during vehicle delivery. This results in all connected services becoming inoperative, including Safety Connect features such as the SOS emergency calling feature.
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.