|The procedure is a update for the Parking brake module.
TSB stands for Technical Service Bulletin and there are a LOT of them.
Since the vehicle is out of warranty, then yes you should be charged for it.
If you are within 12,000 miles and 1 year from the expiration of the W2 / bumper to bumper warranty, then go to the dealer you bought it from and ask for Goodwill.
Most dealers will work with you and honor the Goodwill. If you go to a dealer you did not purchase the vehicle from and never get any service from, they may not.