2026 GMC Sierra 2500 HD Denali

Drivers in Lakeland, Polk County, and across Central Florida choose the Regal Automotive Group for a wide selection of new vehicles and a dealership experience built around convenience and transparency. With multiple locations in Lakeland, Regal makes it easy to find the right vehicle to fit your lifestyle.

- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD
- Denali Reserve Package with power sunroof and Technology Package
- Gooseneck/5th Wheel Prep Package with hitch platform and bed-mounted 7-pin harness
- Power-retractable assist steps with LED perimeter lighting
- Hard folding truck bed cover by RealTruck Advantage
- 22" Gloss Black aluminum wheels with all-terrain tires
- Bose Premium 7-Speaker Sound System with SiriusXM 360L
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- Multicolor 15" Head-Up Display
- HD Surround Vision with bed view camera and trailer camera provisions
- Heated and ventilated front seats with 12-way power adjustment
- Wireless phone projection and charging
- Off-Road Suspension with 2-Speed Active Transfer Case

This 2026 Sierra 2500HD Denali arrives in striking Glacier White Tricoat and represents the pinnacle of heavy-duty capability combined with refined comfort. The legendary Duramax diesel engine delivers the power and torque you need for serious work, while the 10-speed automatic transmission ensures smooth operation whether you're towing, hauling, or navigating daily routes. The Denali Reserve Package elevates your experience with premium appointments and the power sunroof floods the cabin with natural light.

The truck bed is outfitted for professional use and recreation alike. The gooseneck prep package gives you the infrastructure to connect serious trailers, while the RealTruck hard folding cover protects your cargo from the elements. All-terrain tires mounted on 22-inch gloss black wheels project confidence on any surface, and the off-road suspension with active transfer case ensures you're prepared for challenging terrain.

Inside, luxury and technology converge. Perforated leather seats heated and ventilated for year-round comfort, a Bose premium audio system, and SiriusXM 360L satellite radio keep you entertained. The 15-inch Head-Up Display projects critical information directly into your line of sight, while the HD Surround Vision with multiple cameras and trailer viewing provides unmatched visibility. Wireless phone projection and charging mean your devices are always ready, and the OnStar emergency communication system offers added peace of mind.

The Denali Grille in signature chrome, along with power-retractable LED-lit assist steps, announces your arrival with authority. An 80-amp battery, 220-amp alternator, and engine block heater ensure reliability in all conditions. Lane departure warning, forward pedestrian braking, and rear cross-traffic alert work together to help keep you and your passengers safe on every journey.

This is a truck that respects both the road and your ambitions. Whether you're commanding respect at the jobsite, towing your most valuable equipment, or enjoying the open road, the 2026 Sierra 2500HD Denali delivers capability with confidence and style with substance.

For nearly 50 years, the Regal Automotive Group has proudly served Lakeland and Polk County drivers. With a large inventory of quality vehicles, competitive pricing, and aggressive financing options, our team is committed to delivering a straightforward buying experience and excellent customer service. Price includes: $1500 - GM Bonus Cash. Exp. 08/31/2026 $2000 - Buick GMC Bonus Cash. Exp. 08/31/2026 $500 - GM First Responder Cash Allowance Program. Exp. 01/04/2027 $500 - GM Rewards Card Sales Sign Up and Spend Offer. Exp. 09/30/2026