# Service bulletin 08\-280\-25

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: 11022169
- Published by NHTSA: 2025\-08\-27
- Manufacturer's number: 08\-280\-25
- Manufacturer's date: 2025\-08\-22
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Flash: Driver Assistant System Module \(DASM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation the technician must find the following Diagnostic Trouble Code \(DTC\) has been set: ● C1409\-97\- Radar Sensor Blind \- Component Or System Operation Obstructed Or Blocked. In addition, the customer may comment on the following: ● The Adaptive Cruise Control/Highway Assist is not available. This bulletin involves inspecting and possibly updating the DASM, HALF module, and the IPC with the latest available software

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022169-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11022169-9999.pdf)

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

## Components

Electrical system

## Trouble codes named

C1409

## Vehicles listed

- 2024 DODGE HORNET

## Recalls for the same vehicles and component

- [23V623000](/recalls/nhtsa/23V623000.md), 2023-09-07: ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES; ELECTRICAL SYSTEM:PROPULSION SYSTEM: CABLES:FASTENER/CONNECTOR

## Other bulletins for the same vehicles and component

- [08\-344\-26](/bulletins/11037589.md), 2026-09-30, Service bulletin: ELECTRICAL SYSTEM. Flash: Body Control Module \(BCM\) Updates Customers must experience a Malfunction Indicator Lamp \(MIL\) illumination. Upon further investigation SYMPTOM: the technician must find that one or more of the following Diagnostic Trouble Codes \(DTCs\) have been set: ● B25C9 \- Driver Door Ajar Switch 2 Stuck Closed. ● U1412\-09 \- ASU \(Alarm Siren Unit\) \- Component Failures. ● U1413\-09 \- UAM \(Ultrasonic And Antitilt Module\) \- Component Failures. Customers may comment on \*\*one or more of\*\* the following: ● The battery is depleted, vehicle will not start. NOTE: The depleted battery is due to a high Ignition Off Draw \(IOD\) current. ● When the headlamps are placed in "Headlamps Off Delay" mode and the driver door is opened \(engine off\), the Headlamps On alert chime activates until the headlamps turn themselves off \(no chime should be heard while in this mode\) This bulletin involves reprogramming the BCM with the latest available software.
- [08\-252\-26](/bulletins/11034365.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM; SEATS. Heated Seats and Heated Wheel Turn Off Or Become Disabled Customers may comment on the following: ● Customer may comment that their Heated Seats and Heated Steering Wheel will turn off or become disabled \(button grayed out on display screen\) while driving the vehicle.
- [08\-251\-26](/bulletins/11034364.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. Body Control Module \(BCM\) Missing Generic Flash Support Technicians may experience the following: ● After replacing the BCM, a flash file does not appear / display in wiTECH
- [08\-241\-26](/bulletins/11034318.md), 2026-07-02, Service bulletin: ELECTRICAL SYSTEM. Flash: Auxiliary Hybrid Control Processor 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 \(DTCs\): ● P2601\-00 \- Electric Coolant Pump Control Circuit Performance Stuck Off. ● U0623\-00 \- Lost Communication With Coolant Pump "A". ● P1DBA \- Battery Cooling System Failure \(Module, Hybrid Control Processor \(HCP\)\). Customers may experience the following: ● The vehicle is not performing a scheduled cabin preconditioning. 'Cabin Preconditioning Unavailable' message present in the Instrument Panel Cluster \(IPC\) when the scheduled cabin condition is not performed as planned. \*This bulletin involves reprogramming the Auxiliary Hybrid Control Processor \(AHCP\) and Hybrid Control Processor \(HCP\) with the latest available software.\*
- [08\-200\-26](/bulletins/11032828.md), 2026-05-20, Service bulletin: ELECTRICAL SYSTEM. Instrument Panel Cluster \(IPC\) Content Missing Or Screen Blank Customers may experience the following: ● IPC content missing, display abnormal or screen blank
- [08\-200\-26](/bulletins/11032651.md), 2026-05-13, Service bulletin: ELECTRICAL SYSTEM. Instrument Panel Cluster \(IPC\) Content Missing Or Screen Blank Customers may experience the following: ● IPC content missing, display abnormal or screen blank
- [08\-148\-26](/bulletins/11031428.md), 2026-04-22, Service bulletin: ELECTRICAL SYSTEM. The following software enhancement is available: ● This software update enables the feature Active Cabin Ventilation \(ACV\). This bulletin provides information regarding the latest Firmware Over The Air \(FOTA\) update and provides the service technician an overview of the steps a customer will need to take to complete the update. The TBM software will be updated from 5.49.0, 5.53.0 or 5.43 to 5.53 software level. NOTE: National launch for this FOTA update is expected to begin: April 14, 2025.
- [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
- [S228A000025 REV.A](/bulletins/11029705.md), 2026-03-05, Service bulletin: ELECTRICAL SYSTEM. Harman R1H Uconnect 5 Radio Software Flash Error Codes
- [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

JSON: [/v1/bulletins/11022169](/v1/bulletins/11022169)

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