NHTSA Service Bulletin 11026777: 2025 Jeep Wagoneer S
Official manufacturer communication context for 2025 Jeep Wagoneer S, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
Flash: Battery Pack Control Module (BPCM) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more the following Diagnostic Trouble Codes (DTCs): **P0AA7-00 - Hybrid/EV Battery Pack "A" Voltage Isolation Sensor. P1614-00 - ECU Reset/Recovery Occurred. B1A8A-00 - Multi-Module VIN Handshake Failure. P1CDB-00 - Hybrid/EV Wakeup Control 1 Output Circuit Short To Battery. P1E25-00 - EV Battery Failure Level 2. P0D10-00 - Hybrid/EV Battery Negative Contactor A Stuck Open. P0D09-00 - Hybrid/EV Battery Positive Contactor A Stuck Open.** P0DE6-00 - Hybrid/EV Battery Pack Cell Voltage Low. NOTE: Active or stored. P1DAF - Incompatible Limp In Action Requested. NOTE: Active or stored. P1CDE-00 Hybrid/EV Wakeup Control 2 Output Circuit Short to Ground. P1CDA-00 Hybrid/EV Wakeup Control 1 Output Circuit/Open. U00C6-00 Lost Communication With AIR Pressure Sensor. P0F00-00 - Hybrid/EV Battery Module 1 Performance. P0F01-00 - Hybrid/EV Battery Module 2 Performance. P0F02-00 - Hybrid/EV Battery Module 3 Performance. P0F03-00 - Hybrid/EV Battery Module 4 Performance. P0F04-00 - Hybrid/EV Battery Module 5 Performance. P0F05-00 - Hybrid/EV Battery Module 6 Performance. P0F06-00 - Hybrid/EV Battery Module 7 Performance. P0F07-00 - Hybrid/EV Battery Module 8 Performance. P0F08-00 - Hybrid/EV Battery Module 9 Performance. P0F09-00 - Hybrid/EV Battery Module 10 Performance. P0F0A-00 - Hybrid/EV Battery Module 11 Performance. P0F0B-00 - Hybrid/EV Battery Module 12 Performance. P0F0C-00 - Hybrid/EV Battery Module 13 Performance. P0CA6-00 - Hybrid/EV Battery Charging Current High NOTE: If the following DTCs are present/active in the BPCM, Battery Pack replacement will be required. Guided Diagnostics will prompt you for the repair action if the diagnostic is present on the vehicle. P0ADB-00 - Hybrid/EV Battery Positive Contractor A Control Circuit Low. P0AE2-00 - Hybrid/EV Battery Precharge Contactor Circuit Stuck Closed. P0AA1-00 - Hybrid/EV Battery Positive Contactor "A" Stuck Closed. P0FF8-00 - Hybrid/EV Battery Precharge Contactor Circuit "B" Stuck Closed. Customers may also comment on one or more of the following: **Vehicle will not start. A warning message will appear in the Instrument Panel Cluster (IPC) informing the driver to stop safely because the vehicle will be shutting down soon.** Wrench icon is illuminated on the IPC. Vehicle will not enter Drive Ready Mode. This bulletin also includes the following software enhancements: **Software enhancements to prevent multiple DTCs from falsely setting. Improved battery State of Charge (SoC) accuracy in off-nominal conditions.** Bootloader update to prevent battery disconnect unit damage. Improvements in detecting pre-existing battery disconnect unit damage. Charging related enhancements that may lead to DTC P0CA6 falsely setting This bulletin involves reprogramming the IDCM, BPCM, MCP A, MCP B and the EVCU with the latest available software and then, if needed, performing a Wheel End Disconnect Position Learn routine
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11026777?
Flash: Battery Pack Control Module (BPCM) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more the following Diagnostic Trouble Codes (DTCs): **P0AA7-00 - Hybrid/EV Battery Pack "A" Voltage Isolation Sensor. P1614-00 - ECU Reset/Recovery Occurred. B1A8A-00 - Multi-Module VIN Handshake Failure. P1CDB-00 - Hybrid/EV Wakeup Control 1 Output.
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
Get Full Report