Service bulletins for the 2024 Jeep Wagoneer S
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
248 on file from NHTSA, as of 2026-10-19.
About P1626 on the 2024 Jeep Wagoneer S: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P1626 are shown. Show all
| 08-312-26 | 2026-08-13. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Powertrain Modules Software Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P1626-00 - Park Pawl Motor Stuck. NOTE: If DTCs P1E25-00, P1625-00 or P1626-00 are active, the vehicle will stay in READY mode since the Electric Vehicle Control Unit (EVCU) is not able to confirm if the park pawl is engaged, and the vehicle will be secured. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance. Customers may also comment on one or more of the following: ● Vehicle is not shutting off and draining the 12V battery. ● Unable to start the vehicle. |
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| 08-078-25 REV. C | 2025-12-23. Service bulletin. ELECTRICAL SYSTEM. RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● **P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance.** ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● Vehicle not shutting off and a draining 12V battery.** ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown 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 routin |
| 08-077-25 REV. D | 2025-12-23. Service bulletin. ELECTRICAL SYSTEM. RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor B (MCP B) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● **P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance.** ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● Vehicle not shutting off and a draining 12V battery.** ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. 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 |
| 08-013-25 REV. E | 2025-12-23. Service bulletin. ELECTRICAL SYSTEM. Flash: Motor Control Processor B (MCP B) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● **P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance.** ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● Vehicle not shutting off and a draining 12V battery.** ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown 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 |
| 08-010-25 REV. E | 2025-12-23. Service bulletin. ELECTRICAL SYSTEM. Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● **P1E18-00 - Internal Control Module Electronic Park Performance. ● P1625-00 - Park Pawl System Failure. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance.** ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● **Will not be able to start the vehicle. ● Vehicle not shutting off and a draining 12V battery.** ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine |
| 08-078-25 REV. B | 2025-07-17. Service bulletin. ELECTRICAL SYSTEM. RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11A2 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown |
| 08-077-25 REV. C | 2025-07-17. Service bulletin. ELECTRICAL SYSTEM. RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor B (MCP B) Updates 11A2 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown 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. |
| 08-013-25 REV. D | 2025-07-17. Service bulletin. ELECTRICAL SYSTEM. Flash: Motor Control Processor B (MCP B) Updates 11A2 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. 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 |
| 08-010-25 REV. D | 2025-07-17. Service bulletin. ELECTRICAL SYSTEM. Flash: Motor Control Processor A (MCP A) Updates 11A2 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine |
| 08-010-25 REV. C | 2025-05-07. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor A (MCP A) Updates 11A1 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine" |
| 08-013-25 REV. B | 2025-05-07. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor B (MCP B) Updates 11A1 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. 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." |
| 08-077-25 REV. B | 2025-05-07. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor B (MCP B) Updates 11A1 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown 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." |
| 08-078-25 REV. A | 2025-05-07. Service bulletin. ELECTRICAL SYSTEM. "RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11A1 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown 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." |
| 08-013-25 REV. C | 2025-05-06. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor B (MCP B) Updates 11A1 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. 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. " |
| 08-077-25 REV. A | 2025-04-02. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor B (MCP B) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine." |
| 08-078-25 | 2025-03-25. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor A (MCP A) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. REPAIR SUMMARY: This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine." |
| 08-077-25 | 2025-03-25. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor B (MCP B) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown REPAIR SUMMARY: This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine" |
| 08-013-25 REV. A | 2025-02-20. Service bulletin. POWER TRAIN. "Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine." |
| 08-010-25 REV. B | 2025-02-20. Service bulletin. ELECTRICAL SYSTEM. "Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine." |
| 08-010-25 REV. A | 2025-02-04. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor A (MCP A) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine" |
| 08-013-25 | 2025-01-22. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. "Flash: Motor Control Processor B (MCP B) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine" |
| 08-010-25 | 2025-01-22. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. "Flash: Motor Control Processor A (MCP A) Update Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine" |
| 08-262-24 | 2025-01-03. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor B (MCP B) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine. " |
| 08-261-24 | 2025-01-03. Service bulletin. ELECTRICAL SYSTEM. "Flash: Motor Control Processor A (MCP A) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P1626-00 - Park Pawl Motor Stuck. Customers may also comment on one or more of the following: ● Wrench lamp on in the Instrument Panel Cluster (IPC). ● Not able to move the shifter out of Park. ● Vehicle has reduced power. This bulletin also includes the following software enhancement: ● Software enhancement to prevent erroneous fault identification resulting in inverter shutdown. This bulletin involves reprogramming the BPCM, MCP A, MCP B and the EVCU with the latest available software and then performing a Wheel End Disconnect Position Learn routine." |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.