What's the 2017 gmc acadia bolt pattern?

Regardless of which configuration of the 2017 GMC Acadia You're running, You'll always have A6x120 bolt pattern with 66.9mm center bore. The "6" indicates that each wheel will be held in place with SRX wheel fasteners -- in Your case, lug nuts. Each should be torqued to 190 Nm -- or just over 140 lb-ft, if that's the measurement You prefer. The lug nuts have thread measuring M14 X1.50. That,, however, doesn't mean that the wheels are universally interchangeable; in fact, wheels ranging from 17 to 20 inches in diameter are used on various trims, as are widths between 7.5 and 8 inches. Therefore, it's recommended that You check more specific information regarding whichever configuration You're running; tire sizes and wheel sizes are known to vary.