wenmar_bulletins

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Manufacturer communications NHTSA publishes: service bulletins, service campaigns, warranty extensions and over-the-air updates. Each has NHTSA's summary, the manufacturer's own document number, and `document`, the address NHTSA's copy of the document is expected at (not confirmed; null for old ones). The document itself is the manufacturer's and is not returned. A bulletin lists model years: it is not a recall and does not say a vehicle is affected. action=vehicle takes `id`, a vehicle id such as "2018_ford_f-150", and gives one page of that model year's bulletins, newest first, with `counts` by type, component, trouble code and topic. action=vin takes `vin` (and optionally `year`) and does the same for the model year the VIN decodes to. action=get takes `nhtsa_id` and gives one bulletin with every vehicle it lists. action=search lists all bulletins newest first, narrowed by `make`, `model` (needs `make`) and `year`. Every action but get takes `type` (service_bulletin, service_campaign, warranty_extension, over_the_air, emissions, other), `component` (an id from `counts.components`, such as brakes), `code` (a trouble code such as P0420), `topic` (maintenance), `query` (free text in the summary, such as a symptom), `limit` (at most 100, 25 when left out) and `cursor` (`next_cursor` of the page before). This tool needs the hosted service: a local data file does not hold bulletins.