
2026 GMC Sierra 1500
Mileage: 4 · Castle Rock, CO
2026 GMC Sierra 1500 AT4 Crew Cab 4WD
Castle Rock, CO
$66,408
MSRP
$76,955
Dealer rating
Request information
Features
Mileage
4
Drivetrain
Four-Wheel Drive
Exterior color
Summit White
Interior color
Jet Black With Kalahari Accents
MPG
15 MPG
Engine
420 hp 6.2L V8
Fuel type
Gasoline
Transmission
Automatic
Finance in advance
Overview
- Make:GMC
- Model:Sierra 1500
- Year:2026
- Trim:AT4
- Body type:Pickup Truck
- Exterior color:Summit White
- Interior color:Jet Black With Kalahari Accents
- Mileage:4 mi
- Condition:New
- VIN:1GTUUEEL0TZ281156
- Stock number:TZ281156
Fuel economy
- Fuel tank size:24 gal
- Combined gas mileage:15 MPG
- City gas mileage:14 MPG
- Highway gas mileage:17 MPG
- Fuel type:Gasoline
Performance
- Transmission:Automatic
- Drivetrain:Four-Wheel Drive
- Engine:420 hp 6.2L V8
- Horsepower:420 hp
Safety
- ABS Brakes
- Backup Camera
- Blind Spot Monitoring
- Curtain Airbags
- Driver Airbag
- Front Side Airbags
- Parking Sensors
- Passenger Airbag
Measurements
- Doors:4 doors
- Front legroom:44 in
- Back legroom:43 in
- Cabin size:Crew Cab
- Cargo volume:69 in
Options
AT4 CARBONPRO Edition
AT4 Preferred Package
AT4 Premium Package
Technology Package
History
Clean title
No issues reported.
0 accidents reported
No accidents or damage reported.
Pricing
- Selling slowlyOn the market longer than average. There may be flexibility on price.
- Price decreasedPrice went down by $6,297.
Dealer

Dealer reviews
Dealer's description
Discover the ultimate in power, capability, and style with the 2026 GMC Sierra 1500 AT4. This exceptional truck is designed to conquer any terrain, while delivering an unparalleled driving experience that will leave you in awe. Packed with an impressive array of features, this Sierra AT4 stands out from the crowd. Highlights include: - AT4 CarbonPro Edition - AT4 Preferred Package - AT4 Premium Package - Multicolor 15" Diagonal Head-Up Display - Rear Camera Mirror - MultiPro Tailgate Audio System by Kicker - Wireless Charging - Heated and Ventilated Front Seats - Heated Rear Outboard Seats - Trailer Camera Provisions - Integrated Trailer Brake Controller - Hitch Guidance and Hitch View Powered by the renowned 6.2L EcoTec3 V8 engine, this Sierra AT4 delivers an impressive 420 horsepower and 460 lb-ft of torque, effortlessly conquering any terrain. The 10-speed automatic transmission and 4WD system ensure you'll have the power and control to tackle the most challenging off-road adventures. Step inside and experience the unparalleled comfort and technology of the Sierra AT4. The premium Bose 7-speaker sound system, SiriusXM with 360L trial subscription, and wireless Apple CarPlay/Android Auto integration keep you entertained and connected. The power-sliding rear window, heated steering wheel, and dual-zone automatic climate control add to the luxurious driving experience. Safety is also a top priority, with features like Rear Cross Traffic Braking, Rear Pedestrian Detection, and Ultrasonic Front and Rear Park Assist ensuring you can navigate with confidence. The Trailer Side Blind Zone Alert and In-Vehicle Trailering System App make towing a breeze. Distinctive styling cues, like the CarbonPro fender hard badge and the bold, off-road-inspired design, set the Sierra AT4 apart from the competition. The White exterior and 20-inch machined aluminum wheels give this truck a commanding presence on the road. Whether you're tackling the toughest terrain or simply seeking a premium, capable daily driver, the 2026 GMC Sierra 1500 AT4 is the perfect choice. Experience the ultimate in power, technology, and style visit our showroom today and let us demonstrate why this Sierra AT4 is the truck you've been waiting for. Price includes: $1750 - Buick & GMC Consumer Cash Program. Exp. 04/30/2026 $3500 - GM Trade In Allowance Program. Exp. 04/30/2026 $500 - Buick GMC Bonus Cash. Exp. 04/30/2026 $500 - GM Military Cash Allowance Program. Exp. 01/04/2027
Additional Information
Navigation System,AT4 CarbonPro Edition,AT4 Preferred Package,AT4 Premium Package,Preferred Equipment Group 4SB,Technology Package,Trailering Package,7 Speakers,AM/FM radio: SiriusXM with 360L,MultiPro Tailgate Audio System by Kicker (LPO),Premium Bose 7-Speaker Sound System,Radio data system,Radio: Premium GMC Infotainment Audio System,SiriusXM w/360L Trial Subscription,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Interior Power Outlet,Driver Memory,Memory seat,Power driver seat,Power Front Passenger Windows w/Express Up/Down,Power Front Windows w/Driver Express Up/Down,Power Rear Windows w/Express Down,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Auto-Locking Rear Differential,Off-Road Suspension,Power Rake & Telescoping Steering Column,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Door Locks,Power Sunroof,Brake assist,Electronic Stability Control,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Perimeter Lighting,Panic alarm,Security system,Theft Deterrent System (Unauthorized Entry),Speed control,170 Amp Alternator,220 Amp Alternator,Auxiliary External Transmission Oil Cooler,Block heater,External Engine Oil Cooling,Heavy-Duty Air Filter,Auto-dimming door mirrors,Black Chrome Grille Insert Bars,Bumpers: body-color,Carbon Fiber Composite Bed,CarbonPro Fender Hard Badge,Dual Active Exhaust,Front License Plate Kit,GMC MultiPro Tailgate Step Lights (LPO),Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,Off-Road High Clearance Step (LPO),Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Spray-On Pickup Bedliner w/GMC Logo,2 Charge/Data USB Ports Inside Center Console,2 Type-C Charge-Only Rear USB Ports,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera,Buckle to Drive,Color-Keyed Carpeting Floor Covering,Compass,Console-Mounted Safe (LPO),Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front Prem Floor Liners w/Removable Carpet Insert,Front reading lights,HD Surround Vision,Heated steering wheel,Illuminated entry,Lane Keep Assist w/Lane Departure Warning,Multicolor 15" Diagonal Head-Up Display,OnStar Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Camera Mirror,Rear Cross Traffic Braking,Rear Pedestrian Detection,Rear Prem Floor Liners w/Removable Carpet Insert,Rear reading lights,Rear seat center armrest,Safety Alert Seat,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Camera Provisions,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wi-Fi Hotspot Capable,Wireless Apple CarPlay/Wireless Android Auto,Wireless Charging,10-Way Power Driver Seat Adjuster w/Lumbar,10-Way Power Passenger Seat Adjuster w/Lumbar,Front Bucket Seats,Front Center Armrest,Heated 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seating,Heated front seats,Heated rear seats,Perforated Front Leather Seat Trim,Power passenger seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance,Hitch View,In-Vehicle Trailering System App,Integrated Trailer Brake Controller,Red Recovery Hooks,Alloy wheels,Wheels: 20" x 9" Machined Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Sliding Rear Window w/Rear Defogger,Rain sensing wipers,Variably intermittent wipers,3.23 Rear Axle Ratio
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* Fuel economy figures shown are provided from EPA mileage estimates and may not be comparable across different model years. Actual mileage will vary, depending on specific options selected, vehicle maintenance and your driving habits
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