The 2026 GMC Sierra 3500 HD has a cabin that puts drivers first. With 44.5 inches of legroom up front, there is plenty of space to stay relaxed during long hauls near Carrollton. The truck comes in six trim levels: Pro, SLE, AT4, SLT, Denali, and Denali Ultimate. Base models include a 7-inch touchscreen with wireless phone projection, while upper trims get a larger 13.4-inch premium infotainment system with Google built-in apps for navigation and voice commands.
Moving up through the trim levels adds even more cabin features. The SLT, AT4, and Denali trims include heated and cooled front seats, a heated steering wheel, and dual-zone automatic climate control. A Bose premium sound system comes standard on several trims, while the Denali Ultimate gets a 12-speaker Bose setup. Drivers in Carrollton, GA will also like the wireless charging pad and multiple USB ports that keep devices ready to go.
The Denali Ultimate takes things further with 16-way power front seats that include lumbar support and massage. Full-grain leather covers the seating surfaces for a premium feel. Stop by John Thornton Buick GMC at 1492 N Park St, Carrollton, GA to sit inside this heavy-duty truck and see these features today.
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