http://schema.org/NewCondition 2025 GMC 1GT4UREY4SF261253 Denali

2025
GMC SIERRA 2500HD DENALI 4X4 CREW CAB 6.75 FT. BOX (5SA)

Price

$123,510

123 510 $


Final Price

Price does not include taxes and licensing fees.

$123,510

Term (mo.)

Frequency

Price

$123,510

123 510 $


Final Price

Price does not include taxes and licensing fees.

$53,745

Finance For (2.99%)

$19.988 x 84 Months @ 6.49% APR (estimated financing rate, cost of borrowing $4,907).
Plus taxes and license.

$776 / mo

Term (mo.)

Frequency

Price

$123,510

123 510 $


Final Price

Price does not include taxes and licensing fees.

$53,745

Lease For (2.99%)

$19.988 x 84 Months @ 6.49% APR (estimated financing rate, cost of borrowing $4,907).
Plus taxes and license.

$776 / mo

Seaway Chevrolet Buick GMC Ltd

  Request Information  +1-844-937-1785

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Dominate the Road in Style: 2025 GMC Sierra 2500HD Denali Diesel in Cornwall

Looking for a heavy-duty truck that delivers on power, luxury, and cutting-edge technology? Say hello to the 2025 GMC Sierra 2500HD Denali, now available at Seaway GM in Cornwall, Ontario. With its commanding 6.6L Duramax Turbo-Diesel V8 engine paired to the renowned Allison® 10-speed automatic transmission, this beast isn’t just built to haul—it’s built to impress. From its bold gloss black wheels to the luxurious tech-loaded cabin, this truck is made for hard work and high expectations. Whether you’re towing through the United Counties of Stormont, Dundas and Glengarry or cruising through Ingleside or Morrisburg, this Sierra 2500HD brings premium performance and upscale appeal to every drive.


Exterior: Rugged Sophistication Meets Road Presence

From bumper to tailgate, the Sierra 2500HD Denali is all about bold details and purposeful design. The signature Denali chrome grille asserts its presence from first glance, perfectly complemented by gloss black 20-inch wheels that bring a refined edge to its rugged stance. LED projector headlamps with GMC’s animated lighting sequence ensure you’re seen—and can see—no matter the time of day. Loading up gear is a breeze with the Six-Function MultiPro™ Tailgate, while the spray-on bedliner embossed with the GMC logo protects your bed and elevates style. Whether parked in Alexandria or on the move through Maxville, this truck gets noticed.


Interior: Where Comfort Meets Command

Inside the Denali cabin, you’re met with an exceptional blend of craftsmanship and convenience. Rich open-pore wood and patterned aluminum trim accent the interior, while 12-way heated and ventilated power front seats ensure comfort on every journey—from city runs in Long Sault to highway hauls near Winchester. The dual-zone automatic climate control gives both driver and passenger their perfect environment. Thanks to keyless open and start, your experience is seamless, and the rear window defogger ensures visibility even during our unpredictable Eastern Ontario winters.


Safety and Technology: Confidence Comes Standard

When you’re navigating tight city spots in Cornwall or towing through hilly terrain outside Lancaster, safety and smarts are essential—and this Sierra delivers. Forward Collision Alert and Automatic Emergency Braking are ready when you need them, while Lane Departure Warning and Adaptive Cruise Control with Trailering provide peace of mind on longer drives. With up to 14 available camera views, including Transparent Trailer View, backing up, hitching up, and navigating narrow drives is easier than ever. IntelliBeam headlamps add a thoughtful touch, automatically adjusting high beams based on your surroundings.


Why Choose This Over the Rest?

Compare it to the Ford Super Duty or Ram 2500, and the Sierra 2500HD Denali pulls ahead with refinement. Competitors may offer power, but few blend it with high-end tech like the 13.4" infotainment touchscreen, Bose® Premium Sound, and 12.3" Digital Driver Display—a true cockpit of command. Wireless Apple CarPlay® and Android Auto™, along with wireless charging, make connecting effortless whether you're heading to the cottage or the jobsite.


Why Buy from Seaway GM?

At Seaway Chevrolet Buick GMC Ltd., we’ve been proudly serving Cornwall and surrounding areas for over three decades. Led by industry veteran Andre Lapointe, we offer a one-stop experience—from new vehicle sales and service to financing and collision repair. Whether you live in Chesterville or South Mountain, you’ll find a team that’s knowledgeable, welcoming, and ready to help you into the right vehicle with full transparency. Need financing help? Our credit specialists are experts in helping everyone—even if you’ve had a credit hiccup.


Your Next Chapter Starts Here

Picture yourself behind the wheel, commanding the roads around Finch, pulling your trailer with ease through Apple Hill, or rolling up in style for a night out in Cornwall. The 2025 GMC Sierra 2500HD Denali is more than a truck—it’s a lifestyle upgrade. Reading about it is one thing, but the real magic happens when you feel the turbo-diesel torque, experience the quiet luxury, and explore everything this powerhouse has to offer in person.


Book Your Test Drive Today

Ready to experience the 2025 Sierra 2500HD Denali for yourself? Click here to book your test drive at Seaway GM in Cornwall. Power, luxury, and confidence await—let’s get you in the driver’s seat.


Body Style: Pickup
Engine: 6.6L 8cyl
Mileage: 10 km
Exterior Colour: Grey
Interior Colour: Black
Fuel Type: Diesel
Transmission: Automatic
Drivetrain: 4x4
Stock #: 25314
VIN: 1GT4UREY4SF261253
Trim Details: Denali 4x4 Crew Cab 6.75 ft. box

Remote Vehicle Starter System
Front Bucket Seats 12-Way Power Driver Seat Adjuster w/Lumbar 12-Way Power Passenger Seat Adjuster w/Lumbar Includes massage. Driver Memory Recalls driver presets for power driver seat and outside mirrors.
Heated 2nd Row Outboard Seats
X31 Off-Road Package Includes twin-tube Rancho shocks.Hill Descent Control Off-Road Suspension Includes twin-tube shocks. Skid Plates Protect the oil pan, front axle and transfer case.
Rear Wheelhouse Liners
Unauthorized Entry Theft-Deterrent System
Polished Exhaust Tip (LPO) Dealer installed.
SiriusXM w/360L Trial Subscription SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. Certain features and/or content may not be available unless an active data connection is enabled in the vehicle. Content varies by SiriusXM subscription plan. Features and display may vary by vehicle. All SiriusXM services require a subscription, sold separately by SiriusXM after the trial period. Your SiriusXM service will automatically stop at the end of your trial unless you decide to subscribe. If you decide to continue service after your trial, the subscription plan you choose will continue for an indeterminate term and you will be charged according to your chosen payment method at the then-current rates unless and until you cancel. Taxes apply. Please see the SiriusXM customer agreement at siriusxm.ca/terms for complete terms and how to cancel, which includes calling SiriusXM at 1-888-539-7474. All rates, content, and programming are subject to change. SiriusXM uses personal information in accordance with SiriusXM privacy policy, available at siriusxm.ca/privacy. SiriusXM Canada Inc. (SiriusXM), the SiriusXM logo, channel names and logos are trademarks of Sirius XM Radio Inc. and are used under license.
Forge Perforated Leather-Appointed Front Seat Trim
OnStar Services Capable See onstar.ca for details and limitations. Services vary by model. Service plan required.
Trailer Side Blind Zone Alert
LED Smoked Amber Roof Marker Lamps
Transmission: Allison 10-Speed Automatic
Signature Chrome Denali Grille
LED Cargo Area Lighting Located in cargo bed activated with switch on centre switch bank or key fob.
Wireless Charging
120-Volt Instrument Panel Power Outlet 400 watts shared with (KC9) bed mounted power outlet.
ProGrade Trailering System Hitch Guidance w/Hitch View Includes image adjustment and pan/zoom/tilt. In-Vehicle Trailering System App Includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and trailer tire pressure monitor system module. Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitoring sensors are installed.

HD Surround Vision Provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer.
Electric Rear-Window Defogger
Power Front Passenger Windows w/Express Up/Down
Rear Cross Traffic Alert
Keyless Open & Start Includes remote keyless entry.
Front Rain-Sensing Wipers
Ultrasonic Front & Rear Park Assist
Deep-Tinted Glass
2 Charge/Data USB Ports Inside Centre Console
Bed View Camera w/2 Trailer Camera Provisions Includes camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen.
Wireless Phone Projection For Apple CarPlay and Android Auto.
Ventilated Driver & Front Passenger Seats
Radio: AM/FM w/Premium GMC Infotainment System Includes 13.4" diagonal multicolour touch-screen, Google built in apps such as navigation and voice assistance, multi-touch display, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones.
Tires: LT275/65R20 AT BW
Steering Wheel Audio Controls
Heated Driver & Front Outboard Passenger Seats
120-Volt Bed Mounted Power Outl


Axle RatiosMSRP
3.42 Rear Axle Ratio$00 $

Body
Pickup Box - Includes bed assist step.$00 $

DIO - Wheel Type
Wheels: 20" High Gloss Black Painted (LPO) - Dealer installed. (50.8 cm). LPO wheels will come with 4 aluminum 20" transit wheels from the factory with alignment specs set to 20" LPO wheel selected. Wheels: 20" Transit Aluminum For LPO 20" wheels and tires.$3,9403940 $

Engine
Engine: Duramax 6.6L Turbo-Diesel V8 - B20-Diesel compatible. Capped Fuel Fill 220-Amp Alternator Dual Heavy-Duty 70 Amp Battery Includes 730 cold-cranking amps, maintenance-free with rundown protection and retained accessory power. Winter Grille Cover Exhaust Brake Engine Block Heater 3.42 Rear Axle Ratio Transmission: Allison 10-Speed Automatic (MGM)$10,99510995 $

Engine Equipment
Engine Block Heater$195195 $
Dual 220-Amps Primary/170-Amps Aux Alternators$265265 $

Exterior Ornamentation
Power-Retractable Assist Steps - Includes LED perimeter lighting and bright accent.$1,7251725 $
Front License Plate Mount BC/MB/ON - Included for vehicles shipped to British Columbia, Manitoba and Ontario.$00 $
Black Front & Rear Moulded Splash Guards (LPO) - Dealer installed.$300300 $

Floor Covering
All-Weather Floor Liners (LPO) - Dealer installed. Includes 1st and 2nd rows. Replaces factory floor mats.$340340 $

GVWR/Payload
GVWR: 5,148 kgs (11,350 lbs)$00 $

Marketing Option PackageMSRP
Preferred Equipment Group 5SA - Engine: 6.6L V8 w/Direct Injection & VVT Heavy-Duty 80 Amp Battery Includes 720 cold-cranking amps, maintenance-free with rundown protection and retained accessory power. GVWR: 4,921 kgs (10,850 lbs) Transmission: Allison 10-Speed Automatic 3.73 Rear Axle Ratio Front Bucket Seats 12-Way Power Driver Seat Adjuster w/Lumbar 12-Way Power Passenger Seat Adjuster w/Lumbar Includes massage. Driver Memory Recalls driver presets for power driver seat and outside mirrors. Forge Perforated Leather-Appointed Front Seat Trim Wheels: 20" Ultra Bright Machined (50.8 cm). Includes bright chrome inserts and black painted pockets. Tires: LT275/65R20 AT BW Radio: AM/FM w/Premium GMC Infotainment System Includes 13.4" diagonal multicolour touch-screen, Google built in apps such as navigation and voice assistance, multi-touch display, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones. Sierra HD Pro Safety Forward Collision Alert Following Distance Indicator Front Pedestrian Braking IntelliBeam Automatic High Beam On/Off Lane Departure Warning Buckle to Drive Prevents vehicle from being shifted out of park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use. Automatic Emergency Braking Safety Alert Seat Rear Cross Traffic Alert Trailer Side Blind Zone Alert Wireless Phone Projection For Apple CarPlay and Android Auto. Bose Premium 7-Speaker Sound System Includes Richbass woofer. SiriusXM w/360L Trial Subscription SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. Certain features and/or content may not be available unless an active data connection is enabled in the vehicle. Content varies by SiriusXM subscription plan. Features and display may vary by vehicle. All SiriusXM services require a subscription, sold separately by SiriusXM after the trial period. Your SiriusXM service will automatically stop at the end of your trial unless you decide to subscribe. If you decide to continue service after your trial, the subscription plan you choose will continue for an indeterminate term and you will be charged according to your chosen payment method at the then-current rates unless and until you cancel. Taxes apply. Please see the SiriusXM customer agreement at siriusxm.ca/terms for complete terms and how to cancel, which includes calling SiriusXM at 1-888-539-7474. All rates, content, and programming are subject to change. SiriusXM uses personal information in accordance with SiriusXM privacy policy, available at siriusxm.ca/privacy. SiriusXM Canada Inc. (SiriusXM), the SiriusXM logo, channel names and logos are trademarks of Sirius XM Radio Inc. and are used under license. Floor-Mounted Centre Console Includes cup holders, cell phone storage, power cord management and hanging file folder capability. Electric Rear-Window Defogger Push Button Start Remote Vehicle Starter System Keyless Open & Start Includes remote keyless entry. OnStar Services Capable See onstar.ca for details and limitations. Services vary by model. Service plan required. 120-Volt Instrument Panel Power Outlet 400 watts shared with (KC9) bed mounted power outlet. 120-Volt Bed Mounted Power Outlet 400 watts shared with (KI4) instrument panel mounted power outlet. 2 Charge-Only Rear USB Ports 2 USB Ports Located on 1st row console. 2 Charge/Data USB Ports Inside Centre Console HD Surround Vision Provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer. Bed View Camera w/2 Trailer Camera Provisions Includes camera in the CHMSL to show a view of the cargo bed, display located in infotainment screen. Trailer Cam Provisions & Trailer Viewing Software Spray-On Pickup Bedliner w/GMC Logo Does not include spray-on liner on tailgate due to black composite inner panel. Heated Driver & Front Outboard Passenger Seats Ventilated Driver & Front Passenger Seats Heated 2nd Row Outboard Seats Deep-Tinted Glass Steering Wheel Audio Controls Signature Chrome Denali Grille Manual Tilt-Wheel/Telescoping Steering Column Unauthorized Entry Theft-Deterrent System Universal Home Remote LED Smoked Amber Roof Marker Lamps LED Cargo Area Lighting Located in cargo bed activated with switch on centre switch bank or key fob. Power Sliding Rear Window w/Defogger Power Front Passenger Windows w/Express Up/Down Wireless Charging Ultrasonic Front & Rear Park Assist Rear Wheelhouse Liners Front Rain-Sensing Wipers X31 Off-Road Package Includes twin-tube Rancho shocks. Hill Descent Control Skid Plates Protect the oil pan, front axle and transfer case. Off-Road Suspension Includes twin-tube shocks. Polished Exhaust Tip (LPO) Dealer installed. ProGrade Trailering System Hitch Guidance w/Hitch View Includes image adjustment and pan/zoom/tilt. In-Vehicle Trailering System App Includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and trailer tire pressure monitor system module. Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitoring sensors are installed. 2-Speed Active Transfer Case Electronic Autotrac with push button control.$00 $

Option Group
GMC Protection Package (LPO) - Dealer installed. All-Weather Floor Liners (LPO) Dealer installed. Includes 1st and 2nd rows. Replaces factory floor mats. Black Front & Rear Moulded Splash Guards (LPO) Dealer installed.$640640 $

Radio Type
Radio: AM/FM w/Premium GMC Infotainment System - Includes 13.4" diagonal multicolour touch-screen, Google built in apps such as navigation and voice assistance, multi-touch display, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones.$00 $

Seat Type
Front Bucket Seats - 12-Way Power Driver Seat Adjuster w/Lumbar 12-Way Power Passenger Seat Adjuster w/Lumbar Includes massage. Driver Memory Recalls driver presets for power driver seat and outside mirrors.$00 $

Sun/Moon Roof
Power Sunroof$1,3251325 $

Suspension Type
Off-Road Suspension - Includes twin-tube shocks.$00 $

Tire Type
Tires: LT275/65R20 AT BW$00 $

Trailering Equipment
Gooseneck/5th Wheel Prep Package - Hitch platform to accept gooseneck or 5th wheel hitch. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness).$630630 $

Transmissions
Transmission: Allison 10-Speed Automatic (MGM)$00 $

Wheel Type
Wheels: 20" Transit Aluminum - For LPO 20" wheels and tires.$00 $

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Warranty Information Standard
Basic distance: 60,000 km
Basic months: 36 months
Basic warranty: 36 months/60,000km
Corrosion perforation warranty: 60 months/ unlimited distance
Drivetrain distance: 100,000 km
Drivetrain months: 60 months
Powertrain warranty: 60 months/100,000km
Roadside assistance coverage: 60 months/100,000km
Roadside distance: 100,000 km
Roadside months: 60 months

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* Every reasonable effort is made to ensure the accuracy of the information listed above. Vehicle pricing, incentives, options (including standard equipment), and technical specifications listed is for the 2025 GMC Sierra 2500HD Denali 4x4 Crew Cab 6.75 ft. box may not match the exact vehicle displayed. Please confirm with a sales representative the accuracy of this information.

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