16: GMC Acadia
The GMC variant of the GM crossover trio including the Buick Enclave and the Chevy Traverse also had its fair share of reliability issues. These automobiles’ design was rushed to the market and thus there were many shortcomings (via Hot Cars).
The CVT transmission is problematic, and the cost to replace one of these is expensive. The head gasket has also been known to go out on the earliest models of the Acadia, which leads to frustration when it comes time to pay for the repairs.