# Service bulletin 08\-176\-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: 10204402
- Published by NHTSA: 2021\-12\-13
- Manufacturer's number: 08\-176\-21
- Manufacturer's date: 2021\-11\-18
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Radio Frequency Hub Module \(RFHM\) Updates This bulletin involves reprogramming the RFHM with the latest software available. The customer may describe that they heard about these vehicles that can be unlawfully driven away by thieves when they are able to program new key fobs through the RFHM.Software enhancement include: Update to the RFHM software to prevent hackers from programming their own key fob to the vehicle. This will deter any unwanted drive off of the vehicle without the customers knowledge. Performing this RFHM update will prevent additional key fob programming and this must be communicated to the customer before performing this RFHM update. If additional keys are required by the customer after this RFHM update is performed the replacement of the RFHM is required and must be at a previous SW level.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204402-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204402-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2020 DODGE CHALLENGER
- 2020 DODGE CHARGER

## Other bulletins for the same vehicles and component

- [S2608000010](/bulletins/11030042.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. Active Diagnostic Trouble Code \(DTC\) B1A10\-00, B1A11\-00, B1A12\- 00, B1A13\-00\-, B1A14\-00, B1A15\-00, B1A16\-00, and B1A17\-00 in The Radio Frequency Hub \(RFH\)
- [S1408000384 REV.J](/bulletins/11030035.md), 2026-03-13, Service bulletin: ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor \(IBS\) State of Charge \(SOC\) Inaccurate, Battery Charging Message, Presence of IBS related Diagnostic Trouble Codes \(DTCs\), or Battery Warning Lamp On
- [S1408000384 REV.I](/bulletins/11028904.md), 2026-02-19, Service bulletin: ELECTRICAL SYSTEM. Start Stop Charging Warning Lamp Illuminated On, Intelligent Battery Sensor \(IBS\) State of Charge \(SOC\) Inaccurate, Battery Charging Message, Presence of IBS Related Diagnostic Trouble Codes \(DTCs\), or Battery Warning Lamp On
- [9100735](/bulletins/11026651.md), 2025-12-17, Service bulletin: ELECTRICAL SYSTEM. Verify "Z" part number availability. Order a "Z" part number for all Exchange Orders: Warranty, Mopar, Customer pay and Service contract. Order"68" part number for New unsold units only
- [S2508000102](/bulletins/11025515.md), 2025-11-13, Service bulletin: ELECTRICAL SYSTEM. Intermittent Uconnect Box Requires Service Message. TBM Setting Stored Or Pending DTCs B22A9, B1560, B1561, B1562
- [S258A000017](/bulletins/11021581.md), 2025-08-06, Service bulletin: ELECTRICAL SYSTEM. Door speaker Inoperative or No Sound
- [S2208000138 REV.B](/bulletins/11020600.md), 2025-07-09, Service bulletin: ELECTRICAL SYSTEM. Decreased Remote Start And RKE Range. Tire Pressure Sensors Values Are Not Displayed
- [S2323000002 REV.A](/bulletins/11018447.md), 2025-05-19, Service bulletin: ELECTRICAL SYSTEM. "Washer Light On And Will Not Turn Off After Adding Washer Solvent."
- [104523](/bulletins/11017235.md), 2025-04-25, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH AND BEZEL \- FRONT DOOR
- [103261](/bulletins/11014855.md), 2025-03-04, Service bulletin: STRUCTURE:BODY; ELECTRICAL SYSTEM. SWITCH AND BEZEL \- FRONT DOOR

JSON: [/v1/bulletins/10204402](/v1/bulletins/10204402)

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