# Service bulletin 08\-051\-24 REV. A

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: 11001220
- Published by NHTSA: 2024\-06\-07
- Manufacturer's number: 08\-051\-24 REV. A
- Manufacturer's date: 2024\-05\-09
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM
- Manufacturer's system: Hybrid Control Processor

## NHTSA's summary

"Flash: Hybrid Control Processor \(HCP\) and Auxiliary Hybrid Control Processor \(AHCP\) Updates \*\*Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes \(DTCs\):\*\* ● P06E4 \- Control Module Wake\-up Circuit Performance. ● B12B4 \- Charge Status Indicator Module Internal. ● P061B \- Internal Control Module Torque Calculation Performance. ● P0810 \- Clutch Position Control Error. ● P2885 \- Engine Disconnect Clutch Engagement Fault. \*\*Customers may also experience the following: ● Transmission torque calculation issues.\*\* This bulletin involves reprogramming the Powertrain Control Module \(PCM\), Transmission Control Module \(TCM\) and the AHCP also known as Power Inverter Module \(PIM\), with the latest available software."

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11001220-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11001220-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline

## Trouble codes named

B12B4, P061B, P06E4, P0810, P2885

## Vehicles listed

- 2024 JEEP WRANGLER 4XE

## Recalls for the same vehicles and component

- [25V741000](/recalls/nhtsa/25V741000.md), 2025-10-30: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [25V710000](/recalls/nhtsa/25V710000.md), 2025-10-17: ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE \(HPCU\):SOFTWARE
- [24V871000](/recalls/nhtsa/24V871000.md), 2024-11-19: EXTERIOR LIGHTING; ELECTRICAL SYSTEM:WIRING
- [24V720000](/recalls/nhtsa/24V720000.md), 2024-09-27: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [24V652000](/recalls/nhtsa/24V652000.md), 2024-09-05: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

## Other bulletins for the same vehicles and component

- [S2608000038](/bulletins/11038557.md), 2026-10-16, Service bulletin: ELECTRICAL SYSTEM. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle
- [08\-355\-26](/bulletins/11038545.md), 2026-10-16, Service bulletin: ELECTRICAL SYSTEM. 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](/bulletins/11038520.md), 2026-10-16, Service bulletin: ELECTRICAL SYSTEM. High Voltage Battery Has Lower SOC After Overnight Sleep Cycle
- [08\-355\-26](/bulletins/11038508.md), 2026-10-16, Service bulletin: ELECTRICAL SYSTEM. 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.
- [S2621000004](/bulletins/11038329.md), 2026-10-07, Service bulletin: POWER TRAIN. The Customer May Complain About a Popping Noise, Grinding Noise, or an Intermittent No Reverse or Forward Transmission Engagement. The Tech May Find Damaged and/or Worn Transmission Output Shaft Splines \(850RE Transmission Only\)
- [114741](/bulletins/11037596.md), 2026-09-30, Service bulletin: POWER TRAIN. TRANSMISSION KIT \- WITH TORQUE CONVERTER
- [114749](/bulletins/11037591.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM. CHARGER \- BATTERY
- [S2623000048 REV.A](/bulletins/11037353.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; SEATS. Customer States Driver Seat inoperative. Seat Fuse F59 30A Found blown.
- [9100900](/bulletins/11037346.md), 2026-09-17, Service bulletin: ELECTRICAL SYSTEM; STRUCTURE:BODY. Passive Entry O/S Dr Handle Prior to replacing an inoperative passive entry door handle, perform Star Online S2623000040.
- [9100872](/bulletins/11035991.md), 2026-08-06, Service bulletin: ELECTRICAL SYSTEM. Display Exchange part has been superseded. Order the latest Z part number: Z8607669AC \-\-\> Z8791155AA \(Active Exchange Part\) Z8607669AD \-\-\> Z8791669AA \(Active Exchange Part\) Z8607669AE \-\-\> Z8791156AA \(Active Exchange Part\) Z8607671AC \-\-\> Z8791157AA \(Active Exchange Part\) Z8607671AD \-\-\> Z8791158AA \(Active Exchange Part\) Z8607671AE \-\-\> Z8791159AA \(Active Exchange Part\)

JSON: [/v1/bulletins/11001220](/v1/bulletins/11001220)

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