Toyota Prius Prime 2017–2022 — technical service bulletin
Bulletin T-TT-0701-22 · NHTSA communication 10217807 · issued Jul 28, 2022
Technical service bulletin
communication type
Electrical System
component
2017–2022
model years
6
vehicle entries
Official summary
TT: Mil On. DTC P0AFB11 (Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground), P0ABF15 (Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open), P0ABF28 (Hybrid/EV Battery Current Sensor "A" Signal Bias Level Out of Range / Zero Adjustment Failure), P0AA649 (Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure) or P33CF49 ( Hybrid/EV Battery Voltage System Isolation Internal Electronic Failure Abnormal Area Detection Failure) present for HV Battery Current Sensor/Battery 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.