Decode a VIN into vehicle details (make, model, year, engine, plant, safety equipment).

Call this when the user provides a VIN (17 characters, or a partial VIN) and wants to know what vehicle it is. Passing model_year improves accuracy for pre-2001 VINs.

Get NHTSA safety recall campaigns for a vehicle make/model/year.

Call this when the user asks whether a vehicle has recalls, what a recall covers, or how a defect is remedied. Example: make="Honda", model="Civic", model_year=2020.

Decode a VIN and look up recalls for that exact vehicle in one step.

Call this when the user gives a VIN and asks "does my car have any recalls?" — it chains VIN decoding into a recall search automatically.

Get NCAP crash-test star ratings (overall, frontal, side, rollover) for a vehicle.

Call this when the user asks how safe a vehicle is or how it scored in crash tests. Returns ratings per body-style variant.

Get consumer complaints filed with NHTSA for a vehicle, grouped by component.

Call this when the user asks about known problems, reliability issues, or owner-reported defects. Returns totals per component plus the most recent complaint narratives (truncated). Increase limit for more narratives.