Chart based on 132 GMC Sierra HD and 64 Pontiac GTO repairs.
Chart based on 110 GMC Sierra HD and 57 Pontiac GTO 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 GTO 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 GTO Problems and Repair Histories