Service bulletin 08-144-21
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10218591 |
| Published by NHTSA | 2022-08-22 |
| Manufacturer's number | 08-144-21 |
| Manufacturer's date | 2021-08-26 |
| NHTSA component | ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU); ELECTRICAL SYSTEM |
NHTSA's summary
Flash: Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) Updates This bulletin involves reprogramming the HCP and AHCP or also known as Power Inverter Module (PIM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Code (DTC). P061B-00 - Internal Control Module Torque Calculation Performance.P061B-00 DTC may set after driving on snow/ice in 2WD and Traction Control System (TCS) turned off. P06A3-00 - Sensor Reference Voltage "D" Circuit/Open. P0697-00 - Sensor Reference Voltage 3 Circuit. Additional module flashes are required for this update to be effective, the following modules are all to be updated along with this HCP and AHCP update:Powertrain Control Module (PCM) Transmission Control Module (TCM). Battery Pack Control Module (BPCM). Integrated Dual Charging Module (IDCM).
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Hybrid and electric drive
Trouble codes named
P061B, P0697, P06A3
| JEEP WRANGLER | 2021 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2025595 | 2025-10-30. High Voltage |
|---|---|
| 25V741000 | 2025-10-30. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
| 2024566 | 2024-09-27. High Voltage |
| 24V720000 | 2024-09-27. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
| 24V652000 | 2024-09-05. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL |
| 2023627 | 2023-11-22. High Voltage |
| 23V787000 | 2023-11-22. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY |
| 21V949000 | 2021-12-09. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| S2608000038 | 2026-10-16. Service bulletin. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle |
|---|---|
| 08-366-26 | 2026-10-16. Service bulletin. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C147B-92 - Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster (IPC). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software. |
| S2608000038 | 2026-10-16. Service bulletin. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle |
| 08-366-26 | 2026-10-16. Service bulletin. Flash: Drivetrain Control Module (DTCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code (DTC): ● C147B-92 - Front Axle Disconnect Sensor Performance or Incorrect Operation Customers may comment on one or more of the following: ● 4WD system warning lights, service messages, or flashing indicators are displayed in the Instrument Panel Cluster (IPC). ● The vehicle does not engage 4WD properly. This bulletin involves reprogramming the DTCM with the latest available software. |
| 9100900 | 2026-09-17. Service bulletin. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |
| 16C Combo Rev3 | 2026-08-13. Warranty extension. EMISSION RECALL – NORTH AMERICA Check Engine/Malfunction Indicator Lamp 16C The instrument panel cluster on about 32,587 of the above vehicles may have an inoperable check engine/malfunction indicator lamp (CEL/MIL). (JT) vehicles: CEL/MIL and cargo lamp indicator function are swapped. (JL) vehicles: CEL/MIL will not turn on. The CEL/MIL in and of itself will not affect emissions. However, if there was an emission issue that would require illumination of the CEL/MIL, the customer would not be alerted. The vehicle would be non-compliant to the OBD II regulation. |
| 08-260-26 | 2026-07-08. Service bulletin. Flash: Integrated Dual Charging Module (IDCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation SYMPTOM: the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ● **B22A9-87 - ECU Internal Performance - Missing Message. ● P0D21-00 - Battery Charger "A" Output Voltage Too Low.** ● B22A9-16 - ECU Internal Performance-Circuit Voltage Below Threshold. ● B22A9-17 - ECU Internal Performance-Circuit Voltage Above Threshold. ● B22A9-19 - ECU Internal Performance - Overcurrent. ● B22A9-64 - ECU Internal Performance-Signal Plausibility Failure. ● P0D27-00 - Battery Charger 1 Input Voltage Too Low. Customers may also comment on one or more of the following: ● Unable to charge the vehicle with level 2 charger. ● Vehicle would not charge and the charge station circuit breaker in the house / receptacle trips when its plugged into the vehicle. **This bulletin involves reprogramming the IDCM with the latest software available.** |
| 112862 | 2026-07-02. Service bulletin. MOTOR - BLOWER WITH WHEEL |
| 112863 | 2026-07-02. Service bulletin. MOTOR - BLOWER WITH WHEEL |
| 9100835 | 2026-06-18. Service bulletin. Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040. |