NHTSA service bulletin

NHTSA Service Bulletin 10178774: 2021 Toyota Rav4 Prime

Official manufacturer communication context for 2021 Toyota Rav4 Prime, with affected products, buyer checks and links into Carchieve recall, problem and VIN research.

NHTSA service bulletin 10178774 summary graphic for 2021 Toyota Rav4 Prime
10178774NHTSA document ID
Over-the-air software updatecommunication type
1affected product rows
1source rows grouped

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

TT: The all new RAV4 Prime launched in mid-June 2020. An all new high voltage battery was introduced with this model and will require several new SSTs for diagnosis and repair. Some of these tools will be made available via the Toyota Loan Tool Program, while others will be distributed as Essential. These tools will have limited availability at launch and as a result, an Interim Strategy has been developed to make them available to dealers. This Interim Strategy is listed below in the ?Recommendations? section. Estimated timing for the essential tools to be distributed and the loan tools to be permanently available to dealers is September 2020*. An additional communication will be sent to announce when these tools become available. *The GRX-5100 cable is estimated to be available in Q4 2020

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
ToyotaRav4 Prime2021Ask 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 10178774?

TT: The all new RAV4 Prime launched in mid-June 2020. An all new high voltage battery was introduced with this model and will require several new SSTs for diagnosis and repair. Some of these tools will be made available via the Toyota Loan Tool Program, while others will be distributed as Essential. These tools will have limited availability at launch and as a result, an Interim Strategy has been developed to make.

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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