Chart based on 938 Mazda CX-9 and 132 GMC Sierra HD repairs.
Chart based on 591 Mazda CX-9 and 110 GMC Sierra HD repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Don't infer Mazda CX-9 or GMC Sierra HD problem frequency from what you see on this page. Many lucky owners have had no repairs, and their cars are not shown.
Mazda CX-9 and GMC Sierra HD Problems and Repair Histories