NHTSA Service Bulletin 11031671: 2026 Dodge Charger
Official manufacturer communication context for 2026 Dodge Charger, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.
Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.
Global Telematics Box Module (TBM) Firmware Over The Air (FOTA) Update From R5N3 R5R1 R5N To 5T1 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): B1560-11 - Cellular Antenna 1-Circuit Short To Ground. B1560-13 - Cellular Antenna 1-Circuit Open. B1561-11 - Cellular Antenna 2 Short To Ground. B1561-13 - Cellular Antenna 2-Circuit Open. B1562-14 - GPS Antenna-Circuit Short To Ground Or Open. B22A9-96 - ECU Internal Performance - Component Internal Failure. Customers may also experience the following: "Uconnect Box Requires Service" Message on the display screen. 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 following TBM software levels will be updated: From R5N3 to R5T1 From R5R1 to R5T1 From R5N to R5T1
What this bulletin may mean before buying
Treat this as service research, not a verdict on one car. Before you buy, compare this communication with official recall campaigns, model-level owner complaint patterns, and the exact vehicle’s VIN-decoded specifications. A bulletin can help you ask a seller or dealer sharper questions about software updates, known repairs, warranty extensions and service history.
Affected products listed in this communication
Buyer checklist
- Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
- Check recall campaign pages for safety actions that may require dealer repair.
- Compare this bulletin with common problem pages for the same model and component area.
- Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
- Use the used-car buying checklist and get an independent inspection.
Frequently asked questions
What is NHTSA service bulletin 11031671?
Global Telematics Box Module (TBM) Firmware Over The Air (FOTA) Update From R5N3 R5R1 R5N To 5T1 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): B1560-11 - Cellular Antenna 1-Circuit Short To Ground. B1560-13 - Cellular Antenna 1-Circuit Open. B1561-11 - Cellular Antenna 2 Short To Ground..
Is a service bulletin the same as a recall?
No. A recall is a safety campaign with a required remedy for affected VINs. A service bulletin or manufacturer communication usually describes diagnostic, repair, software, warranty or service information.
How should a used-car buyer use this bulletin?
Use it as a research signal. Compare it with recalls, owner complaints, service records, a VIN report and an independent inspection before buying.
Check the exact VIN before you buy
Model-level pages show public safety patterns. A full VIN report helps confirm the exact vehicle, decoded specs, recall applicability and buyer checks.
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