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.
This 2026 GMC Sierra 1500 Denali offers an impressive array of premium features, including:
- 3.0L I-6 Diesel Turbocharged (Duramax) engine
- Denali Reserve Package
- Preferred Equipment Group 5SA
- Technology Package
- Trailering Package
- Premium Bose 7-speaker sound system
- SiriusXM with 360L trial subscription
- Steering wheel audio controls
- Electric rear-window defogger
- 120-volt bed-mounted power outlet
The Sierra Denali delivers exceptional capability and comfort, with a powerful yet efficient diesel engine, advanced technology, and premium amenities throughout. The sophisticated Denali styling, including the signature chrome grille and wheel-to-wheel assist steps, gives this truck a commanding presence on the road.
Inside, you'll find an abundance of driver-focused features, such as the 15-inch head-up display, wireless charging, and the multi-color 15-inch diagonal head-up display. The heated and ventilated front seats, heated rear seats, and heated steering wheel provide year-round comfort. The Sierra Denali also offers comprehensive safety technology, including HD Surround Vision, Rear Cross Traffic Braking, and Rear Pedestrian Detection.
Whether you're hauling heavy loads, towing a trailer, or simply enjoying the ride, this 2026 GMC Sierra 1500 Denali is ready to exceed your expectations. Experience the premium capabilities and refined luxury of this exceptional truck today.
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: $1750 - Buick & GMC Consumer Cash Program. Exp. 06/30/2026 $2500 - GM Trade In Allowance Program. Exp. 06/30/2026 $500 - Buick GMC Bonus Cash. Exp. 06/30/2026 $500 - GM Military Cash Allowance Program. Exp. 01/04/2027 $500 - GM Rewards Card Sales Sign Up and Spend Offer. Exp. 09/30/2026
2026 GMC Sierra 1500 Denali
- New
Finance Terms
Regal Automotive Group
Call 863-225-9790
We’re here to help
The overview
- Exterior Color
- Sterling
- Interior Color
- Jet Black
- Body/Seating
- Truck Crew Cab/5 seats
- Fuel Economy
- 22/26 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- I-6 cyl
- VIN
- 3GTUUGE86TG250971
- Stock Number
- 26T175
The highlights
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Power moonroof
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
The full specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Surround View Monitor: HD Surround Vision w/Hitch View yes
- Telescoping steering wheel
- Tilt steering wheel
- Adaptive suspension
- Alloy wheels
- Front anti-roll bar
- Front tires: 275/50SR22.0
- Front wheel independent suspension
- Power steering
- Rear tires: 275/50SR22.0
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 22"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Radio data system
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless Phone Charger: front
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Diesel engine warranty: 60 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- Front center armrest
- Front seats: bucket
- Genuine wood console insert
- Genuine wood dashboard insert
- Genuine wood door panel insert
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- Power 4-way driver lumbar support
- Power 4-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: I-6
- Cylinder deactivation
- Drive type: four-wheel
- Electric motor 1 torque: none
- Electric motor horsepower: none
- Engine liters: 3.0L
- Engine location: front
- Fuel economy city: 22mpg
- Fuel economy combined: 16mpg
- Fuel economy highway: 26mpg
- Fuel tank capacity: 24.0gal.
- Horsepower: 305hp @ 3,750RPM
- Hybrid electric powertrain type: none
- Hybrid system combined power torque: none
- Hybrid system net power: none
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 24
- Rear locking differential
- Recommended fuel: Diesel
- Standard fuel economy fuel type: diesel
- Torque: 495 lb.-ft. @ 2,750RPM
- Transmission: 10 speed automatic
- Variable intake manifold
- Variable valve control
- Approach angle: 19 deg
- Departure angle: 24 deg
- Ground clearance (min): 206mm (8.1")
- Ramp breakover angle: 18 deg
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Door mirrors: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Tailpipe finisher: chrome
- Trailer hitch
- Trailer sway control
- Compression ratio: 15.00 to 1
- Curb weight: 2,440kg (5,380lbs)
- Engine bore x stroke: 84.0mm x 90.0mm (3.31" x 3.54")
- Engine displacement: 3.0 L
- Engine torque: 495 lb.-ft. @ 2,750RPM
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,918mm (75.5")
- Exterior length: 5,890mm (231.9")
- Front headroom: 1,013mm (39.9")
- Front hiproom: 1,544mm (60.8")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,638mm (64.5")
- GVWR: 3,266kg (7,200lbs)
- Greenhouse Gas Score (GG): 3
- Payload: 812kg (1,790lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,505mm (59.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,656mm (65.2")
- Towing capacity: 3,946kg (8,700lbs)
- Turning radius: 7.1m (23.5')
- Wheelbase: 3,744mm (147.4")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Trailer Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Heads up display
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: Front and Rear Park Assist front and rear
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross Traffic Braking mitigation
- Security system
- Tracker system: Stolen Vehicle Assistance
- Traction control
Notes from the dealer
Track your progress
Peace of mind
Factory warranty
36 months/36,000miles from the vehicle's original in-service date
Optional add-on protection
- GAP Protection
- Lifetime Powertrain
- Tires and Wheels
- Paint Protection
A name you can trust
Regal Automotive Group is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
More about usKBB.com Consumer Reviews
0.0out of 5 overall
Price is plus tax, tag, title. A dealer fee of $989 and an Electronic Registration Filing Fee of $249 are included in the price, which charges represent costs and profits to the dealer for items such as inspecting, cleaning, and adjusting vehicles and preparing documents related to the sale. All advertised pricing is on in-stock units only and is inclusive of all applicable manufacturer offers and may not be combined with other exclusive offers. All payment quotes received assumes that taxes and fees will be paid at the time of sale by the customer in addition to the down payment amount stated or shown. Certain offers presume financing through the Manufacturer Captive Lender, subject to approved credit. Should you purchase the vehicle through the use of other funds, or through other lending sources, certain offers may be excluded. See dealer for complete details.