# Service bulletin 08\-177\-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: 10204405
- Published by NHTSA: 2021\-12\-13
- Manufacturer's number: 08\-177\-21
- Manufacturer's date: 2021\-11\-19
- NHTSA component: HYBRID PROPULSION SYSTEM; ELECTRICAL SYSTEM

## NHTSA's summary

BEV/Hybrid \- Showroom and Display Vehicle Battery Maintenance This information only bulletin discusses procedures that must be followed for BEV/Hybrid vehicles that are on display at dealership showrooms.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204405-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204405-9999.pdf)

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

## Components

Electrical system, Hybrid and electric drive

## Vehicles listed

- 2017 to 2022 CHRYSLER PACIFICA
- 2013 to 2019 FIAT 500
- 2020 to 2022 JEEP COMPASS
- 2020 to 2022 JEEP RENEGADE
- 2021 to 2022 JEEP WRANGLER

## Recalls for the same vehicles and component

- [2026272](/recalls/tc/2026272.md), 2026-06-04: High Voltage
- [26V362000](/recalls/nhtsa/26V362000.md), 2026-06-04: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [2025595](/recalls/tc/2025595.md), 2025-10-30: High Voltage
- [25V741000](/recalls/nhtsa/25V741000.md), 2025-10-30: ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY
- [2024566](/recalls/tc/2024566.md), 2024-09-27: High Voltage
- [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
- [2024412](/recalls/tc/2024412.md), 2024-07-18: High Voltage
- [2024411](/recalls/tc/2024411.md), 2024-07-18: High Voltage
- [24V538000](/recalls/nhtsa/24V538000.md), 2024-07-18: HYBRID PROPULSION SYSTEM

## 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\-367\-26](/bulletins/11038527.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.
- [08\-366\-26](/bulletins/11038526.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\-367\-26](/bulletins/11038490.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.
- [08\-366\-26](/bulletins/11038489.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.
- [S2621000006](/bulletins/11038331.md), 2026-10-07, Service bulletin: ELECTRICAL SYSTEM. Note: Document released 10/2/2026. Multiple Warning Indicators On In The IPC. ESM \- PRNDL Flashing. And The Vehicle Will Not Shift Into Gear. The Wipers May Be On, With An Electric Parking Brake Unavailable.
- [08\-334\-26](/bulletins/11037463.md), 2026-09-23, Service bulletin: ELECTRICAL SYSTEM. Flash: Integrated Dual Charge Module \(IDCM\) Updates 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 \(DTCs\): ● \*\*P0D21\-00 \- Battery Charger "A" Output Voltage Too Low. ● B22A9\-87 \- ECU Internal Performance\-Missing Message.\*\* ● B22A9\-64 \- ECU Internal Performance \- Signal Plausibility Failure. Customers may experience the following: ● \*\*Vehicle will not charge.\*\* This bulletin involves reprogramming the IDCM with the latest available software.
- [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.
- [08\-323\-26](/bulletins/11036745.md), 2026-09-03, Service bulletin: ELECTRICAL SYSTEM. Service 4WD Light Illuminated Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination and the vehicle must SYMPTOM: exhibit/set the following Diagnostic Trouble Code \(DTC\): ● C2260\-63 \- ECU Internal Performance \- Circuit Component Protection Time\-Out Customers may also comment on the following: ● Service 4WD indicator is illuminated.

JSON: [/v1/bulletins/10204405](/v1/bulletins/10204405)

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