[1] TSBs can range from vehicle-specific to covering entire product lines and break down the specified repair into a step-by-step process.
While sometimes written by engineers employed by OEMs, the majority are authored by the first automotive technician to come up with a repair procedure.
When the vehicle's manufacturer issues a recall, they require the dealership to perform the repair and will reimburse them for it.
Some benefits of an automotive TSB are that by widely circulating among dealership service departments and mechanics an engineering-level description and solution for a problem common to type, year, make or model of car, a well-managed TSB process can save technicians troubleshooting time; provide organized, itemized repair procedures; and standardize the repair process.
This can also enhance the quality of the maintenance since it tends to be supported by repair history and high-level diagnostic procedure decisions.