New 2026 GMC Sierra 2500HD AT4

STOCK # T4194763 AMVIC LICENSED DEALER The 2026 GMC Sierra 2500 AT4 Crew Cab 4WD is engineered for serious work and confident off-road capability, while delivering premium comfort throughout. Finished in Sterling Metallic with a Jet Black and Kalahari interior, this AT4 pairs rugged styling with upscale detailing. Power comes from the legendary Duramax 6.6L V8 Turbo Diesel paired with a 10-speed automatic transmission, offering exceptional towing confidence and long-haul performance. Inside the cabin, the Sierra AT4 is loaded with technology and comfort features designed for both job sites and daily driving. Heated and ventilated front seats, heated second-row outboard seats, dual-zone automatic climate control, wireless charging, and premium floor liners ensure year-round comfort. The 13.4-inch touchscreen infotainment system with Google built-in, wireless Apple CarPlay and Android Auto, Bose premium audio, and a 12.3-inch digital driver information centre keep you connected and informed on every drive. Advanced trailering and safety technologies are a standout, including Sierra HD Pro Safety with HD Surround Vision, Trailer Side Blind Zone Alert, Front and Rear Park Assist, Forward Collision Alert, Automatic Emergency Braking, and IntelliBeam automatic high beams. Trailering is further enhanced with the in-vehicle trailering app, trailer brake controller, hitch guidance with hitch view, Bed View Camera, and available Max Trailering Package with gooseneck and fifth-wheel prep.

• Sterling metallic
• Satellite Radio
• Bluetooth Stereo Adapter

• Jet black with kalahari accents, perforated front leather seat trim
• AM/FM Stereo

• Adaptive Cruise Control
• Air vents, rear
• Audio System, 13.4" diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance includes colour touch-screen, 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
• Bose Sound System, premium 7-speaker system with Richbass woofer
• Compass, located in instrument cluster
• Door locks, power
• Driver memory recalls driver "presets" for power driver seat and outside mirrors
• Floor covering, colour-keyed carpeting
• Keyless Open and Start includes remote keyless entry
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
• Premium Floor Liners with removable carpet insert, front
• Rear Seat Reminder
• Seat adjuster, driver 10-way power including lumbar
• Seat trim, Perforated front Leather
• Seating, heated driver and front outboard passenger
• Seats, heated second row outboard seats
• SiriusXM Trial Subscription
• Steering column, manual Tilt-Wheel and telescoping
• Steering wheel, heated
• Steering wheel, wrapped
• USB ports, (2) charge-only, rear
• USB Ports, 2, Charge/Data ports located inside centre console
• Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.ca or dealer for details.)
• Windows, power front, drivers express up/down
• Wireless Charging

• Air conditioning, dual-zone automatic climate control
• Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
• Bluetooth for phone connectivity to vehicle infotainment system
• Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
• Defogger, rear-window electric
• Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
• Exterior Temperature Display, located in radio display
• GMC Premium information Display- 13.4" diagonal Multicolour touch screen
• Mirror, inside rearview auto-dimming
• Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• Premium Floor Liners with removable carpet insert, rear
• Remote vehicle starter system
• Seat adjuster, passenger 10-way power including lumbar
• 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)
• Seats, front bucket with centre console
• Seats, ventilated driver and front passenger
• SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. Certain features and/or content may not be available unless an active data connection is enabled in the vehicle. Content varies by SiriusXM subscription plan. Features and display may vary by vehicle. All SiriusXM services require a subscription, sold separately by SiriusXM after the trial period. Your SiriusXM service will automatically stop at the end of your trial unless you decide to subscribe. If you decide to continue service after your trial, the subscription plan you choose will continue for an indeterminate term and you will be charged according to your chosen payment method at the then current rates unless and until you cancel. Taxes apply. Please see the SiriusXM Customer Agreement at siriusxm.ca/terms for complete terms and how to cancel, which includes calling SiriusXM at 1-888-539-7474. All rates, content, and programming are subject to change. SiriusXM uses personal information in accordance with SiriusXM Privacy Policy, available at siriusxm.ca/privacy. SiriusXM Canada Inc. "SiriusXM", the SiriusXM logo, channel names and logos are trademarks of Sirius XM Radio Inc. and are used under license.)
• Steering wheel audio controls
• Steering wheel, wrapped
• Theft-deterrent system, unauthorized entry
• USB Ports, 2 (first row) located on console
• Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.ca or dealer for details.)
• Window, power front, passenger express up/down
• Windows, power rear, express down
• Wireless phone projection for Apple CarPlay and Android Auto

• Air filter, heavy-duty
• Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
• Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Cooling, auxiliary external transmission oil cooler
• Four wheel drive
• GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)
• In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
• Push Button Start
• Recovery hooks, Red
• Steering, Digital Variable Steering Assist This system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
• Trailer brake controller, integrated

• Air filtration monitoring
• Auto-locking rear differential
• Brake lining wear indicator
• Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
• Cooling, external engine oil cooler
• Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
• Hill Descent Control
• Pickup bed includes bed assist step
• Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
• Skid Plates protect the oil pan, front axle and transfer case
• Suspension, Off-Road includes twin-tube shocks
• Transfer case, two-speed active, electronic Autotrac with push button control

• 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
• Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions
• Daytime Running Lamps, LED signature lighting
• Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
• Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
• Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
• 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. (Requires (UE1) OnStar. Term begins on vehicle delivery date. Paid subscription required after expiry. Services are dependent on compatible wireless networks provided by third-party wireless service providers, working vehicle electrical systems, GPS signal and other factors outside GM control. Changes in technology and wireless networks may limit or prevent the operation of certain services. Services, connectivity, and capabilities have additional terms and limitations and are subject to change, and will vary by model, vehicle configuration, software version, conditions, and geographical and technical restrictions. Compatible smartphone required for mobile app commands. Not all vehicles may transmit all crash data; OnStar links to emergency services; Voice and Maps apps are subject to change at any time and may be provided by third parties. Non-refundable and no cash value. See onstar.ca/en/info for terms and details.)
• OnStar services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
• Rear Seat Belt Indicator
• Seat Belt Adjustable Guide Loops, front row only
• Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behaviour. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
• Trailer Camera Provisions and trailer viewing software
• Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering

• Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
• Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety.)
• Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
• Front and Rear Park Assist, ultrasonic
• HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer.
• Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
• LED Signature DRL's
• OnStar services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
• Rear Cross Traffic Alert
• Safety Alert Seat
• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
• Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
• Trailer Side Blind Zone Alert

• Bed Step, Black integrated on forward portion of bed on driver and passenger side
• Bumper, front, body-colour lower
• Cargo tie downs (12), fixed, rated at 500 lbs (226.8 kg) per corner
• Door handles, body-colour
• Glass, deep-tinted
• Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
• Lamps, cargo area cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
• Mirror caps, high gloss Black
• Mouldings, beltline, Black
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
• Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
• Tire, spare LT275/70R18 all-terrain, blackwall
• Wheelhouse liners, rear
• Wipers, front rain-sensing

• Bedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel)
• Bumper, rear body-colour with bumper CornerSteps
• CornerStep, rear bumper
• Fog lamps, LED
• Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
• IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
• LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
• Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lighting
• Tailgate and bed rail protection caps, top
• Tailgate, GMC MultiPro Tailgate with six functional load/access features NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• Tires, LT275/65R20 all-terrain, blackwall
• Wheels, 20" (50.8 cm) High Gloss black aluminum wheels 8 spokes

• X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks

• ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App