Air Bag Problems of Toyota Prerunner

I purchased truck used 2012. The airbag fault light was on most of the time. I took it to aurora collision in seattle , wa. They couldnt figure out what was wrong so they replaced the entire airbag unit. Within 1 year the airbag fault light is always on again. I called them to report this problem and they said a new company bought the business same phone number 206 522-0493 and they do not have my records. Toyota of seattle told me they are supposed to keep customers records for 10 years and pass them on to the new owner. New business owner says he does not have them. Toyota of seattle says they cannot determine what airbag I have with out taking the truck apart. What can I do?.

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