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Percentage of GMC Sierra HD and Kia Optima repairs by problem area

Chart based on 132 GMC Sierra HD and 587 Kia Optima repairs.

GMC Sierra HD and Kia Optima repair cost distribution

Chart based on 110 GMC Sierra HD and 322 Kia Optima repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
See repair histories for the GMC Sierra HD.
See repair histories for the Kia Optima.
Don't infer GMC Sierra HD or Kia Optima 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 Kia Optima Problems and Repair Histories

See our lemon odds and nada odds comparisons to see vehicles with no repairs or vehicles with more than three repairs. To see how frequently GMC Sierra HD or Kia Optima problems occur, check out our car reliability stats.