Toyota Yaris 2016–2020 — technical service bulletin
Bulletin T-SB-0040-16 Rev · NHTSA communication 10177775 · issued Jun 21, 2020
Technical service bulletin
communication type
Electrical System
component
2016–2020
model years
7
vehicle entries
Official summary
TSB: This bulletin details the procedure for loading configuration data (also known as As-built data) in the ECUs of 2016 ? 2020 model year Yaris Sedan Mexico-produced and 2017 ? 2018 model year iA vehicles. It is not recommended to swap ECUs between vehicles. The configuration data must be loaded into the ECU when replacing one of the ECUs listed below: ?PCM (Engine ECU). ?TCM (Transmission ECU). ?IC (Instrument Cluster or Combination Meter ECU). ?SSU (Smart Key ECU). ?RCM (Restraint Control Module/Airbag ECU).
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.