NHTSA service bulletin

NHTSA Service Bulletin 10183279: 2018-2020 Toyota Prius

Official manufacturer communication context for 2018-2020 Toyota Prius, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10183279 summary graphic for 2018-2020 Toyota Prius
10183279NHTSA document ID
Over-the-air software updatecommunication type
4affected product rows
100/100quality score

Reviewed June 2026 from NHTSA manufacturer communication and service bulletin records. Carchieve is independent and not affiliated with any vehicle manufacturer or government agency.

Quick answer

TSB: Some 2019 model year RAV4 and RAV4 Hybrid and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota apps fail to download. ?Bluetooth is unable to automatically connect after key cycle. ?Abnormal microphone operation. ?Sirius XM antenna disconnection history Diagnostic Trouble Code (DTC) B15FE. ?No outgoing voice during phone calls when using Apple CarPlay. ?Incoming calls incorrectly show on the multi-information display (MID) when using Apple CarPlay. ?CAN networking DTC B1321. ?Volume inoperative after using Siri. ?Unable to adjust the treble audio setting. ?Song information flickering. ?Unable to select Sirius XM music genre by voice recognition. ?Noise when hanging up call on handset. ?Transferred contacts do not match the number of handset contacts. ?Sirius XM sound slow to start. ?Abnormal Toyota apps and Scout Operation. Some 2020 model year Prius and Prius Prime, 2019 model year RAV4 and RAV4 Hybrid, and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1195), Premium Audio (version 1195), or Navigation (version 1035) or earlier may exhibit one or more of the following conditions: ?Unable to play audio source after incoming call. ?Software enhancements. ?Intermittent rebooting. ?Unable to register Bluetooth devices from Bluetooth Audio Mode. ?Unable to pair Android? devices after Google? apps update. ?Unable to access camera diagnosis system. ?USB audio does not resume.?Intermittent Bluetooth disconnection. ?Abnormal voice recognition operation. ?Phone call history does not update. ?Bluetooth loses connection after USB connection is made. ?Navigation inoperative. ?Microphone disconnected pop-up message. ?Clock not displayed on the map screen. ?Intermittent phone ringing with no incoming phone call.

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

MakeModelModel yearsBuyer note
ToyotaPrius Prime2020Ask for service records and run the exact VIN before purchase.

Buyer checklist

  1. Run the 17-character VIN and confirm the year, make, model, engine and equipment match the listing.
  2. Check recall campaign pages for safety actions that may require dealer repair.
  3. Compare this bulletin with common problem pages for the same model and component area.
  4. Ask the seller or dealer whether the bulletin procedure, update or inspection has already been completed.
  5. Use the used-car buying checklist and get an independent inspection.

Frequently asked questions

What is NHTSA service bulletin 10183279?

TSB: Some 2019 model year RAV4 and RAV4 Hybrid and 2018 ? 2020 model year Sienna vehicles equipped with Audio Plus (version 1010) or Premium Audio (version 1010) or earlier may exhibit one or more of the following conditions: ?Toyota apps fail to download. ?Bluetooth is unable to automatically connect after key cycle. ?Abnormal microphone operation. ?Sirius XM antenna disconnection history Diagnostic Trouble Code.

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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