2026 GMC Sierra 1500 AT4

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Automatic

Four-Wheel Drive

Available at

$81,284 * on cash purchase

Was at $96,260

Manufacturer Rebate $14,977

Cash purchase selling price ($81,283.50) includes: Freight and PDI ($2,700.00), Dealer Fees ($699.00), Air conditioning excise tax ($100.00), Tire Duty ($22.50) including installation. Plus (GST/QST) & Licensing.

(GST/QST), licensing, insurance & registration not included.

Cash purchase offer is based on the 2026 GMC Sierra 1500 CC AT4 4WD (TK10743 4SB GAZ) model, with 3L 6 cyl. engine and 10 speed Automatic transmission. Cash purchase selling price is $81,283.50 (plus GST/QST). Cash purchase selling price ($81,283.50) includes rebates: Employee pricing ($9,477.00), Non Stackable cash ($5,500.00). Cash purchase selling price ($81,283.50) includes: Freight and PDI ($2,700.00), Dealer Fees ($699.00), Air conditioning excise tax ($100.00), Tire Duty ($22.50) including installation. Plus (GST/QST) & Licensing. Finance offer is based on the 2026 GMC Sierra 1500 CC AT4 4WD (TK10743 4SB GAZ) model, with 3L 6 cyl. engine and 10 speed Automatic transmission. Finance selling price is $86,783.50 (plus GST/QST). Finance payments include rebates: Employee pricing ($9,477.00). Finance payments include: Freight and PDI ($2,700.00), Dealer Fees ($699.00), PPSA ($114.28), Air conditioning excise tax ($100.00), Tire Duty ($22.50) including installation. Finance offer is based on a 84 months term and 2.99% interest rate. 364 weekly payments of $264.61 ($304.23 GST/QST included) with $0.00 cash down and $0.00 net trade in. Cash down payments are due upon vehicle delivery. Trade-in tax credits require proof of ownership. Finance total obligation is $110,739.72 (GST/QST included). Finance total cost of credit is $16,346.11. Annual Percentage Rate (APR) is 4.72%. Limited time purchase financing offer on approved credit. Some customers will not qualify. Rates and requirements may vary depending on credit worthiness. Payments and conditions may vary for a commercial use. (GST/QST) are calculated on the total amount prior to deduction of the down payment. Lease offer is based on the 2026 GMC Sierra 1500 CC AT4 4WD (TK10743 4SB GAZ) model, with 3L 6 cyl. engine and 10 speed Automatic transmission. Lease selling price is $86,783.50 (plus GST/QST). Lease payments include rebates: Employee pricing ($9,477.00). Lease payments include: Freight and PDI ($2,700.00), Dealer Fees ($699.00), Air conditioning excise tax ($100.00), Tire Duty ($22.50) including installation. Lease payments exclude: PPSA ($51.21). Lease offer is based on a 48 months term and 4.9% interest rate. 208 weekly payments of $268.04 ($308.18 GST/QST included) with $0.00 cash down and $0.00 net trade in. $0.00 down payment and tax on down payment, $0.00 net trade-in and $308.18 first payment are due at lease inception. Total amount due at lease inception is $359.39 ($0.00 down payment, First payment ($308.18), PPSA ($51.21) and GST/QST $0.00). Trade-in tax credits require proof of ownership. Lease offer is based on a 20000 kilometer allowance per year. $0.16 fee per excess kilometer will apply. Estimated vehicle residual value is $43,947.94. An option to purchase at lease end (Buy Back Value) of $43,947.94 may be available. A security deposit might be required. Limited time leasing offer on approved credit. Some customers will not qualify. Rates and requirements may vary depending on credit worthiness. Payments and conditions may vary for a commercial use. Taxes on initial cash down and after tax rebates (including government rebate) are excluded and must be paid upon delivery. Lease total obligation is $64,152.65 (GST/QST included). Lease total cost of credit is $18,416.76. Annual Percentage Rate (APR) is 7.29%. The illustrated vehicle is based on the 2026 GMC Sierra 1500 CC AT4 4WD (TK10743 4SB) model, with 3L 6 cyl. engine and 10 speed Automatic transmission. The illustrated vehicle's cash purchase selling price is $81,283.50. Levy and other environmental or related levies, other taxes (including, where applicable, GST and PST or HST), additional options, license, insurance and registration are extra. While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Please verify all information and pricing with a sales representative or ask online. The dealership reserves the right to make changes at any time, without notice, to the prices, rates, models, materials, equipment, specifications, and availability, or to discontinue models or equipment. Vehicle trade-ins are subject to dealer's approval. Trade-in tax credits require proof of ownership.

Save up to

$14,977

Lease from as low as

For 48 months at 4.9%
with $ $0 cashdown + tax.

$268 /week

Lease payments include: Freight and PDI ($2,700.00), Dealer Fees ($699.00), Air conditioning excise tax ($100.00), Tire Duty ($22.50) including installation. Lease payments exclude: PPSA ($51.21).

(GST/QST), licensing & registration not included.

† The effective interest rate is 7.29%.

Finance from as low as

For 84 months at 2.99%
with $ $0 cashdown + tax.

$265 /week

Finance payments include: Freight and PDI ($2,700.00), Dealer Fees ($699.00), PPSA ($114.28), Air conditioning excise tax ($100.00), Tire Duty ($22.50) including installation.

(GST/QST), licensing & registration not included.

† The effective interest rate is 4.72%.

i *Fine Print

Book Your Test Drive

Evaluate Your Trade-In

Get Prequalified

2026 GMC Sierra 1500 AT4 at Garage Montplaisir Ltée

City

10.7

L/100KM

Highway

9.3

L/100KM

2026 GMC Sierra 1500 AT4 – 3.0L Duramax Turbo-Diesel Engine

Meet the 2026 GMC Sierra 1500 AT4, a full-size pickup engineered to combine off-road capability, diesel performance, comfort, and advanced technology. With its bold design and efficient Duramax powertrain, the Sierra AT4 is built to handle challenging terrain while remaining refined and comfortable for everyday driving.

Under the hood, the 3.0L Duramax Turbo-Diesel engine delivers impressive torque, excellent fuel efficiency, and strong towing capability. Its smooth power delivery makes it an ideal choice for drivers looking for a combination of performance, efficiency, and versatility.

The AT4 trim is purpose-built for off-road adventures. With four-wheel drive, off-road suspension components, underbody protection, and multiple driving modes, the Sierra AT4 is ready to tackle demanding trails and difficult terrain with confidence.

The exterior features distinctive AT4 styling, dark accents, a bold grille, and rugged wheels that give the truck an aggressive and commanding presence both on the road and off the beaten path.

Inside, the Sierra 1500 AT4 offers a spacious and comfortable cabin with premium materials, modern technology, and advanced connectivity. The infotainment system with Apple CarPlay® and Android Auto™ keeps you connected, while advanced driver-assistance technologies provide added confidence behind the wheel.

Whether you're towing, working, commuting, or exploring off-road trails, the 2026 GMC Sierra 1500 AT4 with the 3.0L Duramax delivers an impressive combination of capability, efficiency, and refinement.

Vehicle Highlights

2026 GMC Sierra 1500 AT4
3.0L Duramax Turbo-Diesel engine
10-speed automatic transmission
Four-wheel drive
AT4 off-road capability
Excellent towing capability
Strong torque and impressive fuel efficiency
Off-road-tuned suspension
Bold and rugged AT4 styling
Advanced connectivity and safety technologies

Details

Trim:

AT4

Transmission:

Automatic

Mileage:

187

Bodystyle:

Pickup - Crew Cab

Doors:

Passengers:

Cylinders:

DURAMAX 3.0L TURBO-DIESEL I6 - 6 cyl.

Inventory #:

26804

VIN #:

1GTUUEE81TZ391712

Fuel:

Diesel

Ext. Color:

White

Int. color:

Black

Drivetrain:

Four-Wheel Drive

Options

Mirrors outside heated poweradjustable power-folding and driver-side auto-dimming puddle lamps side perimeter lighting and memory
StabiliTrak stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
Tailgate gate function manual with EZ Lift includes power lock and release includes hitch area light
Audio System 13.4 " diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance includes colour touchscreen multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
Airbags Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag
Electronic Precision Shift and steering column paddle shifters
Steering wheel heated
Wireless Apple CarPlay / Wireless Android Auto
Adaptive Cruise Control
Air conditioning dual-zone automatic climate control
Lamps cargo area cab mounted integrated with centre high mount stop lamp with switch in bank on left side of steering wheel
Tire Pressure Monitoring System auto learn includes Tire Fill Alert (does not apply to spare tire)
Automatic Stop/Start
Driver memory recalls driver "presets" for power driver seat and outside mirrors
Bluetooth for phone connectivity to vehicle infotainment system
Seat adjuster driver 10-way power including lumbar
Seat adjuster passenger 10-way power including lumbar
Headlamps LED projectors with Fadeon/ Fade-off animation LED turn signals and Daytime Running Lamps
GMC Premium information Display- 13.4" diagonal Multicolour touch screen
Assist handles front A-pillar mounted for driver and passenger rear B-pillar mounted
Compass located in instrument cluster
Rear Seat Reminder
Exterior Temperature Display located in radio display
Mirror caps high gloss Black
Fog lamps LED
Steering column lock electrical
Brakes 4-wheel antilock 4-wheel disc with DURALIFE rotors
Taillamps LED LED signature taillight with LED stop turn & reverse and Fadeon/ Fade-off animation
Brake lining wear indicator
Daytime Running Lamps LED signature lighting
CornerStep rear bumper
Frame fully-boxed hydroformed front section
Driver Information Centre enhanced 12.3" diagonal reconfigurable multicolour digital display
Rear Seat Belt Indicator
Seat Belt Adjustable Guide Loops front row only
Air vents rear
OnStar One Standard (OnStar One Business Standard for Fleet)
Seat Up-level Rear with Storage Package 60/40 folding bench for Crew Cab models includes full-length bench seat seatback storage on left and right side centre fold out armrest with 2 cupholders full cab width under-seat storage (includes child seat top tether anchor)
Capless Fuel Fill
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
Tailgate and bed rail protection caps top
Pickup bed
Steering Electric Power Steering (EPS) assist rack-and-pinion
Steering wheel wrapped
Mirror inside rearview auto-dimming
Seats front bucket with centre console
Bumper front body-colour lower
Door handles body-colour
Tailgate GMC MultiPro Tailgate with six functional load/access features
Cargo tie downs (12) fixed
Wheel 17" x 8" (43.2 cm x 20.3 cm) fullsize steel spare
Bumper rear body-colour with corner steps
Rear axle 3.23 ratio
Exhaust aluminized stainless-steel muffler and tailpipe
Heated mirrors
Automatic folding mirrors
Hill assist
Traction control
Power tailgate
Navigation system
Android Auto
AppleCar Play
Hands free bluetooth
LCD display
Front sensors
Side-impact air bags
Front driver & passenger airbags
Steering paddle shifter
Heated steering
Adaptive cruise control
Automatic Climate Control
Air Conditioning
Steering - Mounted controls
Tire pressure monitoring
Stop/Start Button
Memory seats - Front
Power driver seat
Power front passenger seat
LED headlights

Warranty Description

Basic Warranty (Bumper-to-Bumper): 3 years or 60 000 km (covers repairs, parts, and labor for defects).
Battery and Electric Components Warranty: 8 years or 160 000 km (coverage for the propulsion battery and related components).
Powertrain Warranty: 5 years or 100 000 km.
Roadside Assistance and Towing: 5 years or 100,000 km.
Included Maintenance: 2 years of health checks, including tire rotations (under the GM Envolve program, where applicable).

Basic Warranty (Bumper-to-Bumper): 3 years or 60,000 km.
Powertrain Warranty: 5 years or 100,000 km (or 160,000 km where applicable).
Corrosion (Perforation) Warranty: 6 years or 160,000 km.
Roadside Assistance: Included for the duration of the powertrain warranty period.
Restraint Systems Warranty: 6 years or 120,000 km.

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(GST/QST), licensing, insurance & registration not included.