This all-wheel-drive issue was reported in a bulletin by the manufacturer. It is the latest in a series of issues affecting these Chevy crossovers.

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" ...

Technicians have been told to disconnect the battery for 20 minutes to reset the faulty module. Thereafter, they must perform a full vehicle power-up and power-down ...