P1E18 · Manufacturer communications

JEEP · 2026-08-07

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. ●…

RAM · 2026-05-05

Flash: Electronic Vehicle Control Unit (EVCU) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P061B-00 - Internal Control Module Torque Calculation Performance. ● P1444-00 - Power Inverter Module - Incorrect Control Mode. ● P1E18-00 - Internal Control Module Electronic Park Performance. Customers may experience the following: ● At start up, the vehicle will shut down. ● At start up, the vehicle will not start. This bulletin involves reprogramming the EVCU with the latest available software.

RAM · 2026-05-05

Flash: Electronic Vehicle Control Unit (EVCU) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P061B-00 - Internal Conttrol Module Torque Calculation Performance. ● P1444-00 - Power Inverter Module - Incorrect Control Mode. ● P1E18-00 - Internal Control Module Electronic Park Performance. Customers may experience the following: ● At start up, the vehicle will shut down. ● At start up, the vehicle will not start This bulletin involves reprogramming the EVCU with the latest available software.

DODGE · 2026-03-07

RSU With Additional Sleep Cycles for HV Battery Integrity Check Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. ● 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 symptoms: ● Vehicle will not power down causing a 12V battery drain. ● Vehicle does not start. ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park.…

DODGE · 2026-03-07

RSU With Additional Sleep Cycles for HV Battery Integrity Check Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: 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. The customer may comment on one or more of the following symptoms: ● Vehicle will not power down causing a 12V battery drain. ● Vehicle does not start. ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park. This bulletin involves…

DODGE · 2026-03-07

Flash: Motor Control Processor A (MCP A) Updates 6B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance. ● P1626-00 - Park Pawl Motor Stuck. The customer may comment on one or more of the following symptoms: ● Vehicle not shutting off and a draining 12V battery. ● Vehicle no start. ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park. This bulletin involves…

DODGE · 2026-03-07

Flash: Motor Control Processor B (MCP B) Updates 6B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance. ● P1626-00 - Park Pawl Motor Stuck. The customer may comment on one or more of the following symptoms: ● Vehicle not shutting off and a draining 12V battery. ● Vehicle no start. ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park. This bulletin involves…

DODGE · 2026-03-07

Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance. ● P1626-00 - Park Pawl Motor Stuck. The customer may comment on one or more of the following symptoms: ● Vehicle does not start. ● Vehicle will not power down causing a 12V battery drain. ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park. This…

DODGE · 2026-03-07

Flash: Motor Control Processor B (MCP B) Updates 11B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. ● P0A78-00 - Drive Motor A Inverter Performance. ● P0A79-00 - Drive Motor B Inverter Performance. ● P1626-00 - Park Pawl Motor Stuck. The customer may comment on one or more of the following symptoms: ● Vehicle will not power down causing a 12V battery drain. ● Vehicle does not start. ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park. This…

JEEP · 2025-12-18

Flash: Motor Control Processor A (MCP A) Updates 6B3 Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may 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…

JEEP · 2025-12-18

Flash: Motor Control Processor B (MCP B) Updates 6B3 ustomers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may 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…

JEEP · 2025-12-18

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…

JEEP · 2025-12-18

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…

DODGE · 2025-12-18

RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. The customer may comment on one or more of the following symptoms: ● **Vehicle will not power down causing a 12V battery drain. ● Vehicle does not start.** ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ●…

DODGE · 2025-12-18

RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. The customer may comment on one or more of the following symptoms: ● **Vehicle will not power down causing a 12V battery drain. ● Vehicle does not start.** ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ●…

DODGE · 2025-12-18

RSU With Additional Sleep Cycles for HV Battery Integrity Check - Flash: Motor Control Processor A (MCP A) Updates 11B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. The customer may comment on one or more of the following symptoms: ● **Vehicle will not power down causing a 12V battery drain. ● Vehicle does not start.** ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ●…

DODGE · 2025-12-18

Flash: Motor Control Processor A (MCP A) Updates 6B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTC)s: ● **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. The customer may comment on one or more of the following symptoms: ● **Vehicle not shutting off and a draining 12V battery. ● Vehicle no start.** ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park. This bulletin involves…

DODGE · 2025-12-18

Flash: Motor Control Processor B (MCP B) Updates 6B3 Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must 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. The customer may comment on one or more of the following symptoms: ● **Vehicle not shutting off and a draining 12V battery. ● Vehicle no start.** ● Wrench icon is illuminated on the Instrument Panel Cluster (IPC). ● Turtle icon illuminated on the IPC. ● Reduced power. ● Vehicle will not shift out of park This bulletin involves reprogramming the…

DODGE · 2025-12-18

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:…

DODGE · 2025-12-18

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:…

JEEP · 2025-12-18

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:…

JEEP · 2025-12-18

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:…