The 2024 GMC Sierra 2500 HD is a powerful pickup truck that’s built for the most difficult jobs. This truck comes in seven different trim levels, offering a range of impressive features and capabilities. Explore each of the Sierra 2500’s trim levels in this complete guide.

PRO
The Sierra 2500’s PRO base trim comes with a 6.6L V8 gas engine that delivers 401 horsepower and 464 lb.-ft. of torque. This engine is paired with an Allison 10-speed automatic transmission and comes standard on all trims except the Denali Ultimate. The PRO has 17-inch all-season blackwall tires with steel-painted silver wheels, black beltline moldings, door handles, and outside vertical trailering mirrors.
SLE
The SLE trim has 17-inch all-season blackwall tires with machined aluminum wheels, chrome beltline moldings, body-color door handles, and power-adjustable vertical trailering mirrors. Interior features include a 13.4-inch diagonal GMC Premium Infotainment system with Google built-in. This Infotainment system comes standard on all higher trims.
SLT
The Sierra 2500’s SLT trim includes 18-inch all-terrain blackwall tires with machined aluminum heels and dark grey metallic accents. Chrome door handles and mirror caps add a striking touch, while the ProGrade Trailering system makes towing easier than ever!
AT4
The AT4 Sierra 2500 HD trim has 20-inch all-terrain blackwall tires and high gloss black aluminum wheels. Body color bumpers and high gloss black mirror caps add a distinguished aesthetic while the X31 Off-Road package helps your truck take on any kind of terrain. Interior AT4 features include a Bed View Camera, Front and Rear Park Assist, and a Bose Premium ​sound system.
AT4X
The AT4X sets itself apart from the AT4 with 18-inch MT tires and machined aluminum wheels with high gloss black accents. This trim has black power-retractable assist steps with LED perimeter lighting, a power sunroof, and smoked amber LED roof marker lamps. Inside the AT4X, you can find Head-Up Display, a leather-wrapped steering wheel, and a Bose Premium Series 12-speaker system with CenterPoint.
Denali
The Sierra 2500 Denali trim has 20-inch all-terrain blackwall tires with ultra-bright machined aluminum wheels and bright chrome inserts. This trim also includes chrome rectangular assist steps, beltline moldings, door handles, and mirror caps that give it an eye-catching appearance.
Denali Ultimate
The 2024 Sierra 2500’s highest trim is the Denali Ultimate, which comes with a 6.6L Duramax Turbo-Diesel V8 engine. This engine is paired with an Allison 10-speed automatic transmission and provides 470 horsepower with 975 lb.-ft. of torque. This combination gives the Denali Ultimate a maximum towing capacity of up to 22,070 pounds!
Which Sierra 2500 trim is right for you? Find out by seeing them in person at our dealership! Visit Ed Martin Buick GMC in Carmel, IN, and take the new Sierra 2500 for a test drive.


