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Service bulletins for the 2024 Dodge HORNET

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.

143 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
08-344-262026-09-30. 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.
08-252-262026-07-02. 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.
08-251-262026-07-02. 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
08-241-262026-07-02. 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.*
08-200-262026-05-20. 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
08-200-262026-05-13. 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
08-148-262026-04-22. 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.J2026-03-13. 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.A2026-03-05. Service bulletin. ELECTRICAL SYSTEM. Harman R1H Uconnect 5 Radio Software Flash Error Codes
S1408000384 REV.I2026-02-19. 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
91007512026-01-21. Service bulletin. AIR BAGS; ELECTRICAL SYSTEM. Warning light on after replacing : Airbag (ORC) Lane control feedback (HALF) DTC: B12C7, B12C8 Customer will experience a warning light after replacing ORC Secure gateway software update needed in case Of ORC/Half replacement.
08-399-25 REV. A2026-01-07. Service bulletin. ELECTRICAL SYSTEM. Flash: Dual Power Invertor Module (DPIM) 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): ● 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 when the scheduled cabin condition is not performed as planned **This bulletin involves inspecting and possibly reprogramming the DPIM with the latest available software.**
08-399-252025-12-17. Service bulletin. ELECTRICAL SYSTEM. Flash: Power Inverter Module (PIM) 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): ● 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 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) also known as PIM, with the latest available software
08-394-25 REV. A2025-12-17. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present Technicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure.
91007342025-12-17. Service bulletin. ELECTRICAL SYSTEM. If the DTC B1E21-96: Backup Battery-Component Internal Failure is active and customer states Popup message will show at the radio: "Battery of Uconnect Box requires service. SOS call and related functions may be unavailable. Please visit an authorized dealer." PLEASE do not Replace the TBM module, only replace TBM Internal Battery (inside Telematics Box Module) and order PN68493347
08-394-252025-12-11. Service bulletin. ELECTRICAL SYSTEM. Telematics Box Module (TBM) Backup Battery Replacement When DTC B1E21 Is Present echnicians may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● B1E21-96 - Backup Battery Component Internal Failure
18-098-252025-11-19. Service bulletin. ELECTRICAL SYSTEM. Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2450 - Fuel Tank Isolation Valve "A" Circuit Open. Customers may experience the following: Fuel door will not open This bulletin involves reprogramming the PCM with the latest available software.
S25080001012025-11-13. Service bulletin. ELECTRICAL SYSTEM. Intermittent Uconnect Box Requires Service Message. TBM Setting Stored Or Pending DTCs B22A9, B1560, B1561, B1562
08-370-252025-11-13. Service bulletin. ELECTRICAL SYSTEM. R1H Radio U33.43 USB Software Update Customers may experience one or more of the following: ● **Head Unit (HU) does not show the Charge/Climate Summary popup after key off. ● Performance Pages disappear. ● Blind spot chime does not work if CAN activation signals duration is less than two seconds.** ● Speed limit sign on Instrument Panel Cluster (IPC) is showing incorrect speed. ● Touch freeze/Disassociated Center Stack Display (DCSD) off. ● CP/AA wireless disconnection This bulletin involves inspecting radio software level and if the software level is at or below U27.52, updating it with a USB to U29.42 first and then a second update to U33.43.**
S2308000035 REV.C2025-10-29. Service bulletin. ELECTRICAL SYSTEM. U1202-00 Lost Communication with Electric Vehicle Control Module Set Erroneously in The Radio (ETM)
S2308000041 REV.B2025-09-04. Service bulletin. ELECTRICAL SYSTEM. Replacement Key Fobs Will Not Program On Vehicles Equipped With An iBCM
08-280-252025-08-27. Service bulletin. ELECTRICAL SYSTEM. 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
S25090000082025-08-21. Service bulletin. ELECTRICAL SYSTEM. Customer Indicates Reduced Power And Malfunction Indication Light (MIL) on. Possible DTC’s P2453, P2455, P2461.
S258A0000192025-08-13. Service bulletin. ELECTRICAL SYSTEM. Radio Does Not Turn On Automatically When Vehicle Is Started
S25080000472025-06-11. Service bulletin. ELECTRICAL SYSTEM. "Parking Lamps do Not Illuminate When the Vehicle is Remotely Started"

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.