2026 GMC Sierra 3500 HD

At Tantramar Chevrolet Buick GMC

Available from

$99,122 *

on cash purchase

Was

$102,122

Finance from as low as

$644 + tx / bi-weekly
3.99% 84 months

with $0 cash down

The effective interest rate is 4.89%.

Lease from as low as

$736 + tx / bi-weekly
8.5% 48 months

with $0 cash down

The effective interest rate is 9.64%.
*Offer details
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2026 GMC Sierra 3500 HD AT4

Specification

2026 GMC Sierra 3500 HD AT4

  • Chassis / mechanical

    Standard

    • Brake lining wear indicator
    • Cooling, external engine oil cooler
    • Alternator, 170 amps
    • Rear axle, 3.73 ratio
    • Air filtration monitoring
    • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
    • Cooling, auxiliary external transmission oil cooler
    • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
    • Recovery hooks, Red
    • Hitch Guidance, dynamic single line to aid in truck trailer alignment for hitching
    • Air filter, heavy-duty
    • Auto-locking rear differential
    • Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm)
    • Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
    • Steering, Digital Variable Steering Assist, this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue

    Optional

    • Engine Block Heater
    • Alternator, 220 amps
    • Transmission, 10-speed automatic
    • Exhaust brake
    • Rear axle, 3.42 ratio
    • Winter Grille Cover
    • Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible, (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm)
  • Safety

    Standard

    • Rear Seat Reminder
    • Rear Seat Belt Indicator
    • 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
    • Teen Driver, a configurable feature that lets you activate customizable vehicle settings associated with a key fob...
    • Tire Pressure Monitoring System, auto learn, includes Tire Fill Alert (does not apply to spare tire)
  • Interior / comfort / convenience

    Standard

    • Adaptive cruise control
    • Door locks, power
    • Steering wheel, heated
    • Air vents, rear
    • Floor covering, colour-keyed carpeting
    • Steering wheel, wrapped
    • Air conditioning, dual-zone automatic climate control
    • Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
    • Seat Belt Adjustable Guide Loops, front row only
    • Mirror, inside rearview auto-dimming
    • Windows, power front, drivers express up/down
    • Windows, power rear, express down

    Optional

    • Universal Vehicle Module
    • Rear Camera Mirror, inside rearview auto-dimming with full camera display
    • LPO, Sport Pedal Cover Kit
  • Exterior

    Standard

    • Door handles, body-colour
    • Fog lamps, LED
    • Tailgate, GMC MultiPro Tailgate, with six functional load/access features
    • Mirror caps, high gloss Black
    • CornerStep, rear bumper
    • Tire, spare LT275/70R18 all-terrain, blackwall
    • Bed Step, Black, integrated on forward portion of bed on driver and passenger side
    • Bumper, front, body-colour lower
    • Bumper, rear body-colour with bumper CornerSteps
    • Capless Fuel Fill
    • Daytime Running Lamps, LED signature lighting
    • Cargo tie downs (12), fixed, rated at 500 lbs (226.8 kg) per corner
    • Headlamps, Animated LED projectors, LED turn signals and Daytime Running Lamps
    • LED Signature DRL's
    • Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
    • Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
    • Mouldings, beltline, Black
    • Pickup bed, includes bed assist step
    • Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, power folding/extending
    • Tailgate, gate function manual with EZ Lift, includes power lock and release, includes hitch area light
    • Tailgate and bed rail protection caps, top
    • Tire carrier lock, keyed cylinder lock that utilizes same key as ignition and door
    • Tires, LT275/65R20 all-terrain, blackwall
    • Trailering Package, includes trailer hitch, 7-pin and 4-pin connectors and Hitch Guidance
    • Trailering Information Label, provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering
    • Trailer brake controller, integrated
    • Tires, LT275/65R20 all-terrain, blackwall
    • Wheels, 20" High Gloss black aluminum wheels, 8 spokes

    Optional

    • Capped Fuel Fill
    • LPO, MultiPro Tailgate Audio System by Kicker
    • License plate kit, front, Incandescent lighting (will be shipped to orders with ship-to provinces that require front license plate)
    • Tires, LT275/65R20 E 126/123 BF Goodrich off-road T/A KO3
  • Infotainment / communication

    Standard

    • Wi-Fi hotspot capable
    • Bluetooth for phone, connectivity to vehicle infotainment system
    • OnStar services capable
    • 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
    • GMC Premium information Display - 13.4" diagonal Multicolour touch screen
    • Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
    • Compass, located in instrument cluster
    • Exterior Temperature Display, located in radio display
    • OnStar Basics (OnStar Fleet Basics for Fleet) Drive more confidently with up to 8 years of core OnStar services including mobile app commands, connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic, and Automatic Crash Response.

    Optional

    • Bose Sound System, premium 7-speaker system with Richbass woofer
    • Multicolour 15" Diagonal Head-Up Display
  • Seats / trim

    Standard

    • Seats, front bucket with centre console
    • Seat adjuster, driver 10-way power including lumbar
    • Seat adjuster, passenger 10-way power including lumbar
    • Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models
  • Optional package

    Optional

    • Technology Package
    • LPO, Cargo Convenience Package, includes (S1O) Console-Mounted Safe, LPO and (VBJ) rear under seat storage, LPO, (dealer-installed)

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