"Technical service bulletins (TSBs) can be found on the National Highway Traffic Safety Administration (NHTSA) website. TSBs are free to look up on the site and can be a good starting point for finding information about significant problems that may affect your vehicle.
To find a TSB on the NHTSA website, you can:
Go to the NHTSA website
Select Recalls | Vehicle on the home page
Enter your vehicle's 17-character vehicle identification number (VIN)
Enter your vehicle's year, make, and model
Select the Manufacturer Communications tab
Sort the communications by problem type
You can find your VIN on your auto insurance card, the lower left of your car's windshield, or your DMV registration card. Some sites may only show a summary of the TSB, while others may provide the entire bulletin.
TSBs are different from recalls, which only apply to safety- or emissions-related problems. If your car is under warranty, the manufacturer may cover the cost of the TSB repair. If not, you'll be responsible for the repair costs. "