NHTSA Service Bulletin 11007634: 2023 Dodge Challenger
Official manufacturer communication context for 2023 Dodge Challenger, 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.
"Radio Over The Air Update from SR55.4 to SR56.4 Software Version These items are being removed from Shift Torque setup page: 1-2 shift torque reduction and delay. 2-3 shift torque reduction limited 225 lb-ft below potential down to minimum torque value, limit the scrubber to this range and gray out the arrow while at upper/lower limits. 2-3 shift torque delay. Remove Info page references to torque delay and 1-2 shift being configurable. 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 radio software will be updated from SR55.4 to SR56.4."
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 11007634?
"Radio Over The Air Update from SR55.4 to SR56.4 Software Version These items are being removed from Shift Torque setup page: 1-2 shift torque reduction and delay. 2-3 shift torque reduction limited 225 lb-ft below potential down to minimum torque value, limit the scrubber to this range and gray out the arrow while at upper/lower limits. 2-3 shift torque delay. Remove Info page references to torque delay and 1-2.
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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