Lessard Buick Chevrolet GMC
Call Shawinigan (819) 539-8333 | Call La Tuque (819) 523-7695
 Contact Us

2026 GMC Sierra At4 Std/box Duramax 
in Shawinigan & La Tuque 

 Automatic
Ext: Black Int: Black
Clearance
2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-1
  • 2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-1
    GMC Sierra 2026 - Photo #1
  • 2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-2
    GMC Sierra 2026 - Photo #2
  • 2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-3
    GMC Sierra 2026 - Photo #3
  • 2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-4
    GMC Sierra 2026 - Photo #4
  • 2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-5
    GMC Sierra 2026 - Photo #5
  • 2026 GMC Sierra new, Ext:Black, int:Black, At4 Std/box Duramax, 114988. Lessard Buick Chevrolet GMC. L26-135-neuf-6
    GMC Sierra 2026 - Photo #6
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.Right to Repair Notice - In accordance with Québec's Consumer Protection Act, the availability of replacement parts, repair services, or the information necessary for the maintenance or repair of the vehicle or any of its components may vary depending on the manufacturer and model. Please contact the dealership for full details regarding parts and service availability.

2026 GMC Sierra - Specifications 

City
Highway
Share Vehicle Listing on Facebook
Download the window sticker
  • Model: Sierra
  • Trim Level: At4 Std/box Duramax
  • Category: Trucks
  • Exterior Colour: Black
  • Interior Colour: Black
  • Stock #: L26-135-neuf
  • VIN: 1GT1UPEY2TF128189
  • See options
  • Transmission: Automatic
  • Fuel: Diesel
  • Cylinders: 8
  • Price: 114,988

Key features of the 2026 GMC Sierra 

Off-Road Capability

AT4 trim offers advanced off-road suspension and skid plates for rugged terrain performance.

Powerful Towing Capacity

Heavy-duty engine and trailering tech ensure confident towing of large loads or trailers.

Premium Interior Comfort

Crew Cab with heated/ventilated seats and upscale finishes for a comfortable experience.

Advanced Safety Systems

Includes lane departure warning, forward collision alert, and other driver assistance features.

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

2026 GMC Sierra - Description 

GMC Sierra At4 Std/box Duramax

2026 GMC Sierra - Options 

2026 GMC Sierra - 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

Similar Vehicles 

Other Links 

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.
ter
carfax canada 3colour2023 e n
FREE! Get a free Carfax vehicle historical report by providing us with your contact information:
Submit
✕
comp veh tag icon
Compare vehicles at Lessard Buick Chevrolet GMC
SEE OUR PROMOTIONS
You can finance your 2026 GMC Sierra now!
You can easily fill-out a credit request on this 2026 GMC Sierra
and quickly get pre-approved! Start now....
CLICK HERE!
ajax loader2