GMC Sonoma TSBs
The Sonoma has been assigned 416 technical service bulletins (TSB). The 2003 model year has been involved in the most bulletins.
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.