NHTSA Service Bulletin 10191000: 2019, 2020 Acura RDX
Official manufacturer communication context for 2019, 2020 Acura RDX, 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.
"Owner Notification Letter - Please be advised that there was a printing error in a letter you recently received regarding the above-mentioned warranty extension. Acura is adding an additional 2,000 miles to this extension. Please note that the warranty coverage for the MOST bus network on your vehicle is 6 years or 74,000 miles from the original date of purchase, whichever comes first. This notification replaces the previous letter you may have received. We apologize for any inconvenience this error may have caused you. What is the reason for this Warranty Extension? On some 2019 RDX models, a loose connection in the MOST bus network may cause the following: - A popping or crackling from the speakers, a blank display, or no sound from the audio system - Network Loss and/or Drive Mode Not Available Messages or the disclaimer message stuck on - The center display staying on after turning the vehicle to the OFF mode with the door open - Display switches between the Day Mode and Night Mode On some 2020 RDX models, a loose connection in the MOST bus network may cause the following: - A popping or crackling from the speakers, a blank display, or no sound from the audio system - A Network Loss message For vehicles that display any of the above respective symptoms, American Honda is extending the warranty for the MOST bus network on these vehicles to 6 years or 74,000 miles from the original date of purchase, whichever comes first."
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 10191000?
"Owner Notification Letter - Please be advised that there was a printing error in a letter you recently received regarding the above-mentioned warranty extension. Acura is adding an additional 2,000 miles to this extension. Please note that the warranty coverage for the MOST bus network on your vehicle is 6 years or 74,000 miles from the original date of purchase, whichever comes first. This notification replaces.
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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