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Home >> Toyota >> 2025 >> Prius Plug-In Hybrid SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Hybrid Battery System (HEV) - Diagnostic Codes (2 Of 2), Symptom Tests & Circuit Tests) >> HYBRID BATTERY SYSTEM (for M20A-FXS) >> "HAVE TRACTION BATTERY INSPECTED" is displayed [12/2022 - ] >> Description

"HAVE TRACTION BATTERY INSPECTED" is displayed [12/2022 - ]: Description

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The battery ECU assembly monitors the SOC (State Of Charge) of the HV battery. When it finds the HV battery has deteriorated excessively, it will display "Have Traction Battery Inspected" on the multi-information display. If "Have Traction Battery Inspected" is displayed, perform "Battery Diagnosis" and replace the HV battery as necessary.