The GMC Sierra's Max Trailering package isn't compatible with the Sierra Denali trim level. Now, we’re taking a closer look at why the Denali doesn't offer it.

Let’s begin by comparing some of the GMC Sierra’s key wheel designs, starting with the 18-Inch Machined Aluminum with Dark Gray Accents (RPO code RT5). Equipped as standard for Sierra AT4 ...

Any truck is a big investment, but in the GMC Sierra HD AT4X AEV's case ... The ergonomically comfy radio tune and volume controls behind the steering wheel work via fingertip.

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