The wheel bolt pattern for the 2018 GMC Terrain iS5x115mm. What that is is a pattern that keeps the wheel/rim bolted to the vehicle. So 5x115mm means that there are 5 holes and the diameter of a circle through those holes is 115mm. The Terrain has a thread size of M12 X1.5, a 140 Nm torque for the lugs, a center bore of 70.3 mm and it uses lug nuts as the wheel fasteners. The size of the wheels are 17 to 19 inches in diameter and 7 to 7.5 inches in width. The size of the tires on the vehicle is 235/55R19 for the Denali, 225/65R17 for the SL and the SLE Diesel and 225/60R18 for the SLT Diesel.
Alex B
August 30, 2020
Mary's answer is wrong. There are 2 different bolt patterns on this model. The SL and SLE version bolt pattern is 5x115. SLT and Denali is 5x120
Mary H.
April 10, 2020
5x120 is the 2018 gmc terrain wheel bolt pattern stated by the manufacturer.
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