Description
The 2026 GMC Sierra 1500 AT4 brings together commanding V8 performance, serious off-road capability, and premium everyday comfort. Finished in bold Onyx Black and equipped with rugged AT4 hardware, advanced trailering technology, and an upscale cabin, this full-size pickup is built to handle demanding terrain without sacrificing refinement.
Performance & Capability
Engine: 6.2L EcoTec3 V8 delivers strong, responsive performance with the muscle needed for towing, hauling, and confident acceleration
Transmission: 10-speed automatic with Electronic Precision Shift provides smooth, well-controlled gear changes
Drivetrain: Four-wheel drive with an AutoTrac two-speed transfer case for confident traction across changing conditions
Rear Axle: 3.23 rear axle ratio balances responsive performance with towing capability
Rear Differential: Automatic locking rear differential helps maintain traction when terrain gets loose or challenging
Off-Road Suspension: AT4 off-road suspension package provides a rugged foundation for backroads, trails, and uneven terrain
Hill Descent Control: Helps maintain controlled speed on steep downhill sections
Skid Plates: Added underbody protection for greater confidence when navigating rough terrain
Drive Modes: FlexRide mode selection allows the truck to adapt its driving characteristics to changing road and trail conditions
Trailering: Integrated trailer brake controller, Hitch Guidance with Hitch View, trailer camera provisions, and Trailering App provide enhanced towing control and visibility
Winter & Weather Comfort
Heated Front Seats: Adds warmth for the driver and front passenger during cold-weather drives
Heated Rear Outboard Seats: Keeps rear passengers comfortable through the winter months
Heated Steering Wheel: Provides welcome warmth on frosty mornings
Engine Block Heater: Helps support dependable cold-weather starting
Remote Vehicle Start: Prepares the cabin before you set out
Dual-Zone Automatic Climate Control: Allows individualized temperature settings for driver and front passenger
Rain-Sensing Wipers: Automatically respond to changing precipitation for added convenience
Premium Floor Liners: Help protect the interior from snow, mud, water, and everyday debris
Interior Comfort & Convenience
Power Front Seats: Power-adjustable driver and passenger seating with memory functionality for personalized comfort
Ventilated Front Seats: Adds cooling comfort during warmer weather
Power Sliding Rear Window: Provides convenient ventilation and an open-air feel when desired
Power Tilt & Telescoping Steering Column: Makes it easy to find a comfortable driving position
Keyless Open & Push-Button Start: Simplifies entry and ignition
Wireless Charging: Conveniently powers compatible smartphones without the need for charging cables
13.4 GMC Premium Infotainment System: Large colour touchscreen with Google Built-In compatibility, navigation capability, and Bluetooth connectivity
12 Reconfigurable Digital Driver Display: Keeps important vehicle information clearly presented and customizable
Bose Premium Audio: Delivers rich, immersive sound throughout the cabin
Wireless Phone Projection: Keeps compatible smartphones seamlessly connected
Universal Home Remote: Conveniently operates compatible garage doors and home systems
Rear Seat Storage Package: Adds practical storage for passengers, equipment, and everyday essentials
120V Power Outlets: Provides convenient power access in the cabin and cargo bed
Technology & Visibility
15 Multicolour Head-Up Display: Projects important driving information directly into the drivers field of view
Rear Camera Mirror: Enhances rearward visibility for greater awareness around the truck
Bed View Camera: Helps monitor cargo and equipment in the pickup bed
HD Surround Vision: Provides an enhanced view around the truck when parking or maneuvering
LED Cargo Bed Lighting: Illuminates the bed for easier loading and unloading after dark
Safety & Driver Assistance
GMC Pro Safety: A suite of advanced technologies designed to provide additional driver awareness
Forward Collision Alert & Automatic Emergency Braking: Helps identify potential frontal collisions and assists with emergency braking
Lane Keep Assist with Lane Departure Warning: Helps encourage the truck to remain within its lane
Adaptive Cruise Control: Helps maintain a selected following distance from traffic ahead
Front Pedestrian Braking: Adds awareness when pedestrians are detected ahead
Rear Pedestrian Alert & Rear Cross Traffic Braking: Provides added confidence while reversing
Trailer Side Blind Zone Alert: Helps monitor areas alongside the truck and trailer
Front & Rear Park Assist: Makes maneuvering in tight spaces easier
Safety Alert Seat: Provides directional seat feedback for certain detected hazards
Teen Driver Mode & Buckle-to-Drive: Adds additional safety-focused features for newer drivers and occupants
Exterior Styling & Utility
Exterior Colour: Onyx Black a deep, commanding finish that emphasizes the AT4s rugged personality
20 Machined Aluminum Wheels: Finished with Carbon Grey Metallic accents for a bold, upscale appearance
275/60R20 All-Terrain Tires: Designed to provide confident grip across pavement, gravel, dirt, and trail surfaces
AT4 Styling: Aggressive design cues and functional off-road equipment give the Sierra a distinctive presence
Red Front Recovery Hooks: A signature AT4 detail ready for demanding terrain while adding striking visual contrast
Off-Road High-Clearance Steps: Provide easier cabin access while complementing the trucks rugged stance
GMC MultiPro Tailgate: Versatile multi-function design makes loading, unloading, and accessing the cargo bed easier
Power Lock & Release Tailgate: Adds convenient powered tailgate operation
Spray-On Bedliner: Provides durable protection for the pickup box
120V Bed-Mounted Outlet: Brings practical power to the jobsite, campsite, or wherever the truck takes you
Front & Rear Bumper Corner Steps: Provide convenient access to the cargo area
Whether youre towing a trailer, navigating winter roads, working around town, or heading deep into the backcountry, the 2026 GMC Sierra 1500 AT4 is built to meet the moment. With its powerful 6.2L V8, four-wheel-drive capability, premium technology, and unmistakable AT4 character, it delivers the ideal combination of rugged strength, sophisticated comfort, and off-road confidence.
AMVIC Licensed Dealer
*Every reasonable effort is made to ensure the accuracy of the information shown. The Standard Equipment listed is provided at the time of the manufacture and may not match the exact vehicle displayed. Please confirm with a sales representative the accuracy of this information.
Safety Equipment
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
Front and Rear Park Assist, ultrasonic
Hitch Guidance
Rear Seat Reminder
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
Daytime Running Lamps, LED signature lighting
Rear Seat Belt Indicator
Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
Rear Cross Traffic Braking
Rear Pedestrian Alert
Trailer Side Blind Zone Alert
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.
Trailer Camera Provisions and trailer viewing software
Seat Belt Adjustable Guide Loops, front row only
Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
Safety Alert Seat (Included and only available with (PDI) GMC Pro Safety.)
Hitch View with image adjustment, Pan/Zoom/Tilt
OnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
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) GMC 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.)
Interior Equipment
Seat adjuster, driver 10-way power including lumbar
Seat adjuster, passenger 10-way power including lumbar
Seating, heated driver and front outboard passenger
Seats, ventilated driver and front passenger
Seats, heated second row outboard seats
Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
Floor covering, colour-keyed carpeting
Steering wheel, heated
Compass, located in instrument cluster
Window, power front, passenger express up/down
Windows, power rear, express down
Door locks, power
Remote vehicle starter system
Theft-deterrent system, unauthorized entry
Defogger, rear-window electric
Mirror, inside rearview auto-dimming
Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
Air conditioning, dual-zone automatic climate control
Exterior Temperature Display, located in radio display
Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
Adaptive Cruise Control
Steering wheel, wrapped
Wireless Charging
USB Ports, 2 (first row) located on console
Air vents, rear
Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
Brake lining wear indicator
Windows, power front, drivers express up/down
Driver memory recalls driver "presets" for power driver seat and outside mirrors
USB Ports, 2, Charge/Data ports located inside centre console
Steering column lock, electrical
Seats, front bucket with centre console
Premium Floor Liners with removable carpet insert, front
Premium Floor Liners with removable carpet insert, rear
Keyless Open and Start includes remote keyless entry
USB ports, (2) charge-only, rear
GMC Premium information Display-13.4" diagonal Multicolour I touch screen
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)
Steering column, power rake and telescoping
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
Seat trim, Perforated leather front
Exterior Equipment
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
CornerStep, rear bumper
Glass, deep-tinted
Tailgate and bed rail protection caps, top
Door handles, body-colour
Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
Mirror caps, high gloss Black
Lighting, perimeter
Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
Wipers, front rain-sensing
Fog lamps, LED
Tailgate, GMC MultiPro Tailgate with six functional load/access features
Bumper, rear body-colour with corner steps
Bumper, front, body-colour lower
LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
Wheelhouse liners, rear (Deleted with (PCP) AT4 CarbonPro Edition.)
Grille (Black chrome header and grille insert bars with gloss black accents.)
Wheels, 20" x 9" (50.8 cm x 22.9 cm) machined aluminum with Carbon Grey Metallic accents
Tires, 275/60R20SL all-terrain, blackwall (Includes (QAQ) spare tire.)
Tire, spare 255/80R17SL all-season, blackwall (Included and only available with 20" or 22" wheels and tires excluding (QFV) LT265/60R20 MT blackwall Goodyear Wrangler Territory tires.)
Bedliner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Deleted with (PCP) AT4 CarbonPro Edition.)
Entertainment Equipment
Bose Sound System, premium 7-speaker system with Richbass woofer
Bluetooth for phone connectivity to vehicle infotainment system
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.ca or dealer for details.)
SiriusXM
Steering wheel audio controls
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
Wireless, Apple CarPlay / Wireless Android Auto
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.)
Mechanical Equipment
Four wheel drive
Trailer brake controller, integrated
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Frame, fully-boxed, hydroformed front section
Exhaust, aluminized stainless-steel muffler and tailpipe
Push Button Start
Air filter, heavy-duty
Auto-locking rear differential
Automatic Stop/Start
Hill Descent Control
Skid Plates
Steering, Electric Power Steering (EPS) assist, rack-and-pinion
Capless Fuel Fill
Rear axle, 3.23 ratio
Alternator, 220 amps
Pickup bed
Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
Suspension, Off-Road with 2" factory installed lift and monotube shocks
Recovery hooks, Red
Cargo tie downs (12), fixed, rated at 500 lbs per corner
Electronic Precision Shift and steering column paddle shifters
Engine, Duramax 3.0L Turbo-Diesel I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.)
Battery, heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Transmission, 10-speed automatic with Electronic Precision shift, electronically controlled with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking
GVWR, 7200 lbs. (3266 kg) (Requires TK10*43 Crew Cab 4WD model with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Exhaust, dual system (Includes chrome exhaust tips. Not available with (L87) 6.2L EcoTec3 V8 engine.)
Other Equipment
Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
GMC Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UHX) Lane Keep Assist with Lane Departure Warning, and (UHY) Automatic Emergency Braking (Includes (T8Z) Buckle to Drive and (HS1) Safety Alert Seat.)