2026 GMC Sierra 1500 Denali Ultimate demo (used) 
in Oshawa 

10 km (Used)
 Automatic
Ext: Black
ONYX BLACK
Int: ALPINE UMBER
ALPINE UMBER
Demo
2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-1
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-1
    GMC Sierra-1500 2026 - Photo #1
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-2
    GMC Sierra-1500 2026 - Photo #2
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-3
    GMC Sierra-1500 2026 - Photo #3
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-4
    GMC Sierra-1500 2026 - Photo #4
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-5
    GMC Sierra-1500 2026 - Photo #5
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-6
    GMC Sierra-1500 2026 - Photo #6
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-7
    GMC Sierra-1500 2026 - Photo #7
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-8
    GMC Sierra-1500 2026 - Photo #8
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-9
    GMC Sierra-1500 2026 - Photo #9
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-10
    GMC Sierra-1500 2026 - Photo #10
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-11
    GMC Sierra-1500 2026 - Photo #11
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-12
    GMC Sierra-1500 2026 - Photo #12
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-13
    GMC Sierra-1500 2026 - Photo #13
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-14
    GMC Sierra-1500 2026 - Photo #14
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-15
    GMC Sierra-1500 2026 - Photo #15
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-16
    GMC Sierra-1500 2026 - Photo #16
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-17
    GMC Sierra-1500 2026 - Photo #17
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-18
    GMC Sierra-1500 2026 - Photo #18
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-19
    GMC Sierra-1500 2026 - Photo #19
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-20
    GMC Sierra-1500 2026 - Photo #20
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-21
    GMC Sierra-1500 2026 - Photo #21
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-22
    GMC Sierra-1500 2026 - Photo #22
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-23
    GMC Sierra-1500 2026 - Photo #23
  • 2026 GMC Sierra-1500 used pre-owned, Ext:Black, int:ALPINE UMBER, Denali Ultimate, 112544. Mills Motors Buick GMC. 260613-demo-24
    GMC Sierra-1500 2026 - Photo #24
The amount shown reflects an estimate of the amount that you can expect to pay in Canadian dollars. Taxes are excluded (unless selected otherwise). Photos for illustration purposes only. While we strive to ensure that the information on this website is accurate, we recommend contacting us directly to verify details and obtain additional information about the vehicle, including confirmation of prices, colors, trims, options, and other specifications.

2026 GMC Sierra 1500 - Specifications 

City
Highway
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  • Model: Sierra 1500
  • Trim Level: Denali Ultimate
  • Category: Trucks
  • Exterior Colour: Onyx Black
  • Interior Colour: Alpine Umber
  • Kilometers: 10 km
  • Stock #: 260613-demo
  • VIN: 1GTUUHEL0TZ318112
  • See options
  • Drive train: Four-wheel drive
  • Transmission: Automatic
  • Engine: 6.2 ECOTEC3 V8 L
  • Cylinders: 8
  • Price: 112,544

Key features of the 2026 GMC Sierra 1500 

Premium Interior Luxury

Top-tier leather, real wood, and advanced comfort for a superior driving experience.

6.2L V8 Performance

Powerful 6.2-liter V8 engine with impressive towing and acceleration capabilities.

Advanced Safety Suite

Comprehensive driver-assist and safety tech, including adaptive cruise and lane keep assist.

Cutting-Edge Connectivity

Large touchscreen, wireless Apple CarPlay, Android Auto, and premium Bose audio system.

The key features listed may depend on the trim, options, or equipment package.

2026 GMC Sierra 1500 - Description 

2026 GMC Sierra 1500 Denali Ultimate
Performance & Powertrain
>> 5.3 L EcoTec3 V8 engine with 10-speed automatic transmission - balanced power and capability.
>> 6.2 L EcoTec3 V8 - stronger output for bigger towing and performance needs.
>> Duramax 3.0 L Turbo-Diesel I-6 with 10-speed automatic - efficient torque and towing flexibility.
>> Smooth-shifting automatic with Tow/Haul capability - optimized for loaded driving.

Heavy-Duty Utility & Capability
>> MultiPro Tailgate - versatile six-function design for easier loading/unloading.
>> Best-in-class crew cab cargo volume - plenty of space for gear and equipment.
>> Trailer-ready hardware and integrated wiring - makes towing easier and more reliable.
>> High-capacity towing and payload capability.

Exterior & Functional Features
>> Signature Denali chrome grille with premium styling cues.
>> Chrome assist steps from wheel-to-wheel - helps with cab and bed access.
>> LED exterior lighting - bright and efficient illumination.
>> Large premium wheels with Denali-specific finishes.

Interior & Comfort
>> Authentic open-pore wood and patterned aluminum trim - upscale cabin materials.
>> Forge perforated-leather seating surfaces - premium and comfortable.
>> 12-way power front seats with power lumbar - individualized comfort.
>> Spacious, refined crew cab interior with attention to detail.
>> Leather-wrapped steering wheel and high-end trim accents.

Technology & Connectivity
>> Large 13.4-inch diagonal infotainment touchscreen with GMC Premium Interface - modern controls.
>> 12.3-inch diagonal digital driver information cluster - clear vehicle data display.
>> Apple CarPlay and Android Auto for seamless smartphone integration.
>> Premium Bose audio - rich, immersive sound.

Safety & Driver Assistance
>> Super Cruise hands-free driver assistance tech - reduces highway fatigue.
>> Advanced cruise and braking systems - help manage speed and reduce collision risk.
>> Comprehensive driver assist features including lane support and forward crash alerts.
>> HD surround vision - enhanced parking and maneuvering.
>> Trailer safety aids - improves confidence while towing.

2026 GMC Sierra 1500 - Options 

2026 GMC Sierra 1500 - Technical Specifications 

  • Fuel:
  • Fuel efficiency:  
    • City: Liters / 100 Km
    • Highway: Liters / 100 Km
  • Horse Power: Hp at Rpm
  • Torque: Lbs at Rpm
  • Trunk space: Liters
  • Vehicle weight: Kg
  • Length: mm
  • Width: mm
  • Height: mm
Indemnification Clause
While we strive to ensure that the information on this website is accurate, we recommend contacting us directly to verify details and obtain additional information about the vehicle, including confirmation of prices, colors, trims, options, and other specifications.
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