2015 GMC Sierra 3500HD ratings and reviews

The 2015 GMC Sierra 3500HD is the manufacturer’s answer to drivers who want a capable, heavy-duty truck that they can tailor to their needs for work, play, comfort, and more. The Sierra 3500HD comes in four feature-packed trims, with the Sierra starting the lineup with a 6.0-liter V8 FlexFuel engine, six-speed automatic transmission, a 3.5-inch monochromatic driver information display, power door locks, a folding rear bench, a tilting steering wheel, and an AM/FM radio. SLE adds Bluetooth, an OnStar communications system, an EZ-Lift tailgate, and a chrome-accented grille, while SLT includes fog lamps, a universal home remote, a theft deterrent system, dual-zone automatic climate control, and leather-appointed front split-folding seats. The upper-level Denali offers perks like chrome side steps, a rear power-sliding window, a premium Bose audio system, and exclusive chrome exterior accents. A Trailering Equipment Package available for the SLE trim and up gives drivers a trailer wiring harness, back-up lamps, and other equipment to make the Sierra 3500HD towing-capable.

Select a 2015 GMC Sierra 3500HD trim level (1)

The 2015 GMC Sierra 3500HD is the manufacturer’s answer to drivers who want a capable, heavy-duty truck that they can tailor to their needs for work, play, comfort, and more. The Sierra 3500HD comes in four feature-packed trims, with the Sierra starting the lineup with a 6.0-liter V8 FlexFuel engine, six-speed automatic transmission, a 3.5-inch monochromatic driver information display, power door locks, a folding rear bench, a tilting steering wheel, and an AM/FM radio. SLE adds Bluetooth, an OnStar communications system, an EZ-Lift tailgate, and a chrome-accented grille, while SLT includes fog lamps, a universal home remote, a theft deterrent system, dual-zone automatic climate control, and leather-appointed front split-folding seats. The upper-level Denali offers perks like chrome side steps, a rear power-sliding window, a premium Bose audio system, and exclusive chrome exterior accents. A Trailering Equipment Package available for the SLE trim and up gives drivers a trailer wiring harness, back-up lamps, and other equipment to make the Sierra 3500HD towing-capable.


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