2026 GMC Sierra 3500 HD AT4

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)

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

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)

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

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

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