08-035-26

Flash: Battery Pack Control Module (BPCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find one or more of the following Diagnostic Trouble Codes (DTCs) have been set:
• **P0B28-00 - Hybrid/EV Battery "B" Voltage Unstable.**
• P0DAB-00 - Hybrid/EV Cell Balancing Performance.
• P0607-00 - ECU Internal Performance.
• P0AA1-00 - Hybrid/EV Battery Positive Contactor “A” Stuck Closed.
• P0AA4-00 - Hybrid Battery Negative Contactor Circuit Stuck Closed.
• P0C78-00 - Hybrid/EV Battery System Precharge Time Too Long.
• P0CA6-00 - Hybrid/EV Battery Charging Current High.
• P0B24-00 - Hybrid/EV Battery "A" Voltage Unstable.
• P1C5E-00 - Hybrid/EV Battery State Of Health Failied.
• P0BBE-00 - Hybrid/EV Battery Pack Voltage Variation. **Customers may also comment on the following:
• Vehicle does not start. NOTE: The no start condition is accompanied with one or more of the following DTCs: P0DAB-00, P0607-00, P0AA1-00, P0AA4-00, P0C78-00, P0CA6-00, P0B24-00, P1C5E-00 and/or P0BBE-00. P0B28-00 will result in a MIL for 49 days. After 49 days of the MIL, the vehicle will no longer be allowed to start.** , new LOP, new Diagnosis statement and new Repair Procedure. Other changes not asterisked include the removal of a build date. This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 25-113, date of issue June 25, 2025. All applicable RSU VINs have been loaded. To verify this RSU service action is applicable to the vehicle, use VIP or perform a VIN search in DealerCONNECT/Service Library. All repairs are reimbursable within the provisions of warranty. B08 FSAR-TSB-6896 -2- REPAIR SUMMARY: **This bulletin involves reprogramming the BPCM with the latest available software.**