There's something wrong with several General Motors crossovers, and the automaker seems unsure of how to fix the issue. Customers have been complaining of a "Service All Wheel Drive" or "Service 4WD" ...

AWD and 4WD sound similar in name, but they are very different. AWD is always active on most vehicles, while 4WD can be customized depending on the situation. A lot of people use the terms four-wheel ...