Vehicle highlights
- 4WD
- Apple CarPlay
- Android Auto
- Blind Spot Warning
- Backup Camera
- Leather Seating
Price and listing details
Price breakdown
- MSRP
- $79,570
- List price
- $72,892
- Fees, rebates & discounts
- +$413
- Advertised price
- $73,305
This is the net difference between the list and advertised prices. It may include fees, rebates, discounts, or other dealer adjustments. Confirm details and eligibility with the dealer.
Mandatory dealer charges are included in this advertised price. The dealer did not provide Car Handshake with an itemized fee breakdown. View the dealer’s listing or contact the dealer for details. Taxes, title, registration, and other government charges are additional.
- Stock number
- T26045
- VIN
- 1GT4UPE70TF367843
- Seen in inventory
- Listing updated
Confirm availability and transaction details with the dealership.
Specifications
Overview
- Year
- 2026
- Make
- GMC
- Model
- Sierra 2500 HD
- Trim
- AT4
- Condition
- New
- Body
- Pickup
- Mileage
- 1 mi
Engine & drivetrain
- Fuel
- Flex Fuel
- Driveline
- 4WD
- Transmission
- Automatic
- Displacement
- 6600 cc
- Engine
- 6.6L V-8 direct injection, variable valve control, regular gasoline, engine with 401HP
Exterior & interior
- Exterior color
- Black
- Interior color
- Black
Seating and powertrain
- Seats
- 5 seats
- Third row
- Not confirmed
- Powertrain
- Flex fuel
Seat count does not confirm a third row. Check unconfirmed details with the dealership.
Features
40 listedSafety
12
- Backup Camera
- Blind Spot Warning
- Forward Automatic Emergency Braking
- Rear Cross Traffic Warning
- Parking Sensors (Front and Rear)
- Lane Departure Warning
Show all 12 featuresShow fewer features
- Surround View Camera
- Forward Collision Warning
- Pedestrian Automatic Emergency Braking
- Cruise Control
- Hill Start Assist
- Rear Seat Reminder
Comfort & interior
9
- Heated Front Seats
- Remote Start
- Opening Sunroof
- Leather Seating
- Ventilated Front Seats
- Heated Steering Wheel
Show all 9 featuresShow fewer features
- Push Button Start
- Power Driver Seat
- Keyless Entry
Technology
11
- Apple CarPlay
- Android Auto
- Built-in Navigation
- Wireless Phone Charging
- Head-up Display
- Bluetooth
Show all 11 featuresShow fewer features
- USB Ports
- Satellite Radio
- Touchscreen Display
- Voice Control
- Digital Instrument Cluster
Exterior & utility
8
- Trailer Hitch
- Trailer Brake Controller
- Alloy Wheels
- Fog Lights
- Rain-Sensing Wipers
- Heated Mirrors
Show all 8 featuresShow fewer features
- Tinted Windows
- Trailer Sway Control
Dealer notes
This new 2026 GMC Sierra 2500HD AT4 crew cab is on the floor at Napleton Chicago Chevy Buick GMC on S. Michigan Ave., carrying delivery miles only and every major package GMC offers on the AT4.
It arrives in Onyx Black over Jet Black with Kalahari accents perforated front leather — a combination that means the truck looks as purposeful as it performs. Three packages are already aboard: Preferred Equipment Group 4SB, AT4 Premium Plus Package, and AT4 Preferred Package, making this one of the most completely equipped Sierra 2500HDs you will find on a Chicago lot.
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At a glance: 6.6L V8 · 10-Speed Automatic · 4WD · Crew Cab / Standard Bed · delivery miles only · Onyx Black exterior · Jet Black with Kalahari Accents interior
The trailering and off-road story is what separates this AT4 from a base heavy-duty truck. The ProGrade Trailering System is standard here and is paired with the Gooseneck / 5th Wheel Prep Package — meaning the bed is already plumbed to accept a gooseneck or fifth-wheel hitch without an aftermarket conversion.
Bed View Camera with two trailer camera provisions and HD Surround Vision let you monitor what is behind you and beside you, and Trailer Side Blind Zone Alert watches for vehicles entering the danger zone when you are pulling a wide load. The X31 Off-Road Package, 20-inch high-gloss black aluminum wheels, and LT275/65R20 all-terrain tires mean the truck is equally ready when the pavement ends.
Off-Road High Clearance Steps (a dealer-installed accessory already on the sticker) make entry easier without sacrificing approach angle.
Inside, the Preferred Equipment Group 4SB fills out the comfort and technology picture. Heated and ventilated driver and front passenger seats, heated second-row outboard seats, and perforated front leather trim make long pulls comfortable for everyone.
The 13.4-inch diagonal premium GMC infotainment system with Google Built-In handles navigation and voice assistance without a phone tether, while wireless Apple CarPlay and Android Auto, wireless charging, a Bose premium 7-speaker sound system, and SiriusXM with 360L round out connectivity. A multicolor 15-inch diagonal head-up display projects speed and navigation cues onto the windshield, and the rear camera mirror gives you a clean sightline past a loaded trailer or stacked cargo.
Dual 120-volt power outlets — one bed-mounted, one on the instrument panel — run tools or a tailgate setup without an inverter. The spray-on bedliner with GMC logo, rear wheelhouse liners, and premium floor liners front and rear are already done.
Remote start, keyless entry, rain-sensing wipers, and a Safety Alert Seat round out what makes this truck easy to live with day to day.
Napleton Chicago Chevy Buick GMC is at 2720 S Michigan Ave, Chicago, IL — on Motor Row at 27th St., steps from McCormick Place and the Cermak–McCormick Place Green Line, and a straightforward drive from Bronzeville, Hyde Park, and the Loop. The Napleton family has been in the automotive business for more than 80 years; our process is low-pressure and our inventory is priced to be transparent.
If you have been waiting for a fully optioned Sierra 2500HD AT4 without a factory-order wait, this is the one to see.
Dealership location
Napleton Downtown Chevrolet
Dealer: Napleton Chicago Chevy Buick GMC
2720 S Michigan Ave, Chicago, IL, 60616
