Chart based on 132 GMC Sierra HD and 460 Pontiac G8 repairs.
Chart based on 110 GMC Sierra HD and 244 Pontiac G8 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Don't infer GMC Sierra HD or Pontiac G8 problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.
GMC Sierra HD and Pontiac G8 Problems and Repair Histories