Toyota BZ4X 2023 — technical service bulletin
Bulletin 23TC05 · NHTSA communication 10241408 · issued Jul 27, 2023
Technical service bulletin
communication type
Electrical System
component
2023
model years
1
vehicle entries
Official summary
DP: A software update has been developed for certain 2023 model year bZ4X vehicles. It is designed to improve DC-charging performance, and enhance visualization of the remaining range, current state of charge (SOC), and real-life energy consumption.
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.