GMC Sierra 3500 TSBs

The Sierra 3500 has been assigned 1,127 TSBs over 24 model years.
TSBs contain recommended steps and procedures for diagnosing or repairing a known problem. They are issued directly by GMC to service technicians. You'll often see TSBs used as evidence in lawsuits when owners feel the automaker should help with repairs.
A TSB can cover multiple models and years. The 2015 Sierra 3500 has been involved in the most campaigns with 361 total service bulletins.