A generation is a collection of years for a specific model where there isn't much change in the design, parts used, or the manufacturing process. Model years within a generation often share the same problems making them incredibly helpful for predicting problems and overall cost of ownership.
We've run the numbers and think the 1st generation Acadia (2007—2016) should be avoided. It ranks dead last in our generation reliability rankings.
The Acadia has 2 generations available in North American markets. The 1st generation (2007—2016) has been the least reliable.
The Canyon has 2 generations available in North American markets. The 2nd generation (2013—2019) has been the least reliable.
The Envoy has 2 generations available in North American markets. The 2nd generation (2002—2009) has been the least reliable.
The Envoy XL has 1 generation available in North American markets.
The Jimmy has 2 generations available in North American markets. The 2nd generation (1995—2004) has been the least reliable.
The Safari has 2 generations available in North American markets. The 2nd generation (1995—2005) has been the least reliable.
The Savana has 1 generation available in North American markets.
The Sierra 1500 has 4 generations available in North American markets. The 3rd generation (2014—2018) has been the least reliable.
The Sierra 2500 has 4 generations available in North American markets. The 2nd generation (2007—2013) has been the least reliable.
The Sierra 3500 has 4 generations available in North American markets. The 1st generation (1992—2006) has been the least reliable.
The Sonoma has 2 generations available in North American markets. The 2nd generation (1994—2003) has been the least reliable.
The Suburban has 2 generations available in North American markets. The 8th generation (1992—1999) has been the least reliable.
The Terrain has 2 generations available in North American markets. The 1st generation (2010—2017) has been the least reliable.
The Yukon has 5 generations available in North American markets. The 4th generation (2015—2020) has been the least reliable.
The Yukon Hybrid has 1 generation available in North American markets.
The best way to find out what's wrong with a vehicle is from the people who drive them. Not only do owner complaints help us rank vehicles by reliability, but they're often used to spark class-action lawsuits and warranty extensions. Plus, they're a great way to vent.