The side of the Terrains already have a Denali badge so another Denali would be redundant. The factory badging is part of the front door chrome trim piece.
The lettering is sort of hard to read since the whole piece is chrome, lettering and all. I wish that GMC had used body color lettering in the inlays, like what they used on the door handles. The "Denali" would stand out more. And provide a small reduction to the overuse of chrome.
2018 Terrain Denali, 2.0T, Blue Steel Metalic/Black
2013 ATS Premium, 3.6 V6, White Diamond Tri-coat/Brownstone
1967 Camaro, 327, Butternut Yellow/Black