Toyota Prius 2001–2009 — technical service bulletin
Bulletin T-TT-0303-14 · NHTSA communication 10109589 · issued Aug 20, 2014
Technical service bulletin
communication type
Electrical System
component
2001–2009
model years
9
vehicle entries
Official summary
Tech Tip: When a DTC is detected by the HV Battery ECU, the HV Control ECU will automatically store a P3000, Information Code 123 ?HV Battery Control System Malfunction? DTC. The purpose of the P3000/123 is to capture the state of the Hybrid Control System when the HV Battery ECU DTC sets. It does not indicate a malfunction of the HV Control 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.