GMC's biggest mistake was making a 175hp 4-cylinder turbocharged engine. Who came up with that? 175hp? I think it's the least powerful SUV on the market. But it doesn't have the best fuel economy either. It has a good design, but the serious mistake is in the notoriety.
Sadly, GM is a company that makes the most reliable vehicles among American brands. If you're curious to know why, look at Ford & Lincoln vehicles, the company that made the most recalls in the U.S. over the last year.
2018 GMC Acadia bought it new w 107 miles on it, 6 years later 92000 miles, 2 continents US and Europe, 6 countries, Germany, Belgium, Netherlands, Luxembourg, England, Hungary while I was stationed overseas not one problem with my Acadia. Keep the maintenance up and it will last.
