Hummer TSBs (Technical Service Bulletins)
Recommended Repairs for Your Hummer
Technical Service Bulletins (TSBs) are recommended steps and procedures for repairing vehicles. A TSB is issued by Hummer when there is a growing trend with an unanticipated problems, but does not warrant a recall. “Click and Clack” of NPR Car Talk fame, describe TSBs as really "just containing advice from the company to the mechanics who fix [the] cars". Most repair shops can lookup TSB information to get the recommended repairs from the manufacturer.