2023 GMC Sierra 1500 AT4
Specifications, live market data, colors, and factory features.
612 for sale right now
$34,349 – $72,990
Specifications
Performance
- Engine
- 3.0L In-Line LZ0
- Transmission
- Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Diesel
- MPG City
- 22 mpg
- MPG Highway
- 27 mpg
- MPG Combined
- 24 mpg
Body & Practicality
- Body Style
- Truck
- Doors
- 4
Colors
Factory colors on 2023 GMC Sierra 1500 AT4s for sale now.
Exterior
- Summit White(white)94
- Onyx Black(black)66
- Titanium Rush Metallic(gray)22
- Sterling Metallic(silver)21
- Dynamic Blue Metallic(blue)16
- Sterling(silver)14
- Desert Sand Metallic(gold)11
- Deep Bronze Metallic(brown)11
- Volcanic Red Tintcoat(red)10
- Volcanic Red(red)9
Interior
- Jet Black w/Kalahari Accents(black)159
- Jet Black(black)87
- Jet Black With Kalahari Accents(black)24
- Black11
- Jet Black with Kalahari accents(black)9
- Jet Black With Kalahari Accents, Perforated Leathe(brown)3
- Jet Black W/Kalahari Accents(black)2
- Jet Black W/Kalahari Acce(black)1
- Jet Black With Kalahari Accents, Perforated Leather Front Seat T(brown)1
- -1
Live Market Data
Computed from active 2023 GMC Sierra 1500 AT4 listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest AT4 Listings
The newest 2023 GMC Sierra 1500 AT4s on the market.

Used 2023 GMC Sierra 1500
$47,992
Est. $697/mo*
BMW of North Haven

Used 2023 GMC Sierra 1500
$44,999
Est. $655/mo*
Young Buick GMC of Burley

Used 2023 GMC Sierra 1500
$45,993
Est. $669/mo*
Great Falls Honda

Used 2023 GMC Sierra 1500
$51,849
Est. $752/mo*
United Auto Group

Used 2023 GMC Sierra 1500
$44,329
Est. $645/mo*
Eagle Buick GMC

Used 2023 GMC Sierra 1500
$50,765
Est. $737/mo*
Doggett Toyota of Beaumont

Used 2023 GMC Sierra 1500
$52,786
Est. $766/mo*
Lincoln Chrysler Dodge Jeep

Used 2023 GMC Sierra 1500
$56,292
Est. $816/mo*
Conway Ford
What's Yours
Worth?
The median 2023 GMC Sierra 1500 AT4 lists for $48,560 today.
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Factory Features
Standard equipment from the window sticker, reviewed for accuracy.
Comfort & Convenience
- Keyless Open and remote start
- 120-volt power outlets (cargo bed and instrument panel)
- Power front windows with express-up/down
- Auto-dimming rearview mirror
- Push-button start
Driver Assistance
- Automatic Emergency Braking
- Forward Collision Alert
- Front Pedestrian Braking
- Lane Keep Assist with Lane Departure Warning
- Following Distance Indicator
- IntelliBeam automatic high-beam headlamps
Entertainment
- 13.4-inch diagonal color touchscreen
- GMC Premium Infotainment System with Google built-in
- Wireless Apple CarPlay and wireless Android Auto (compatible phones)
- 12.3-inch diagonal digital Driver Information Center
- Bose premium sound system
- SiriusXM-capable radio (trial included; subscription sold separately)
- 3 years of GMC Connected Services
- 3 years of OnStar Premium Plan (Remote Access Plan, Safety & Security Plan, and unlimited Wi-Fi data plan; see OnStar for details)
Exterior
- GMC MultiPro multi-function tailgate
- Spray-on bedliner with AT4 logo
- LED headlamps and taillamps
- LED daytime running lamps
- LED fog lamps
- LED cargo-area lighting
- Power-folding, heated outside mirrors with auto-dimming
- Rain-sensing front wipers
- Dual exhaust with premium tips
- 18 x 8.5-inch aluminum wheels with all-terrain tires (20-inch wheels are optional)
Interior
- Jet Black interior with Kalahari accents (standard AT4 interior)
- Dual-zone automatic climate control
- 10-way power front bucket seats
- Heated front seats and heated rear outer seats
- Ventilated front seats
- Rear 60/40 folding bench seat with storage package
- Driver seat and outside-mirror memory
- Power tilt-and-telescoping steering column
- Leather-wrapped heated steering wheel
- Premium floor liners
Mechanical & Performance
- Enhanced Duramax 3.0L turbo-diesel I6 (305 hp / 495 lb-ft) — factory-standard engine on AT4 (6.2L V8 available only)
- 10-speed automatic transmission
- 4WD with 2-speed AutoTrac transfer case
- Auto-locking rear differential
- Off-road suspension with 2-inch factory lift and monotube shocks
- Underbody skid plates
- Hill Descent Control
- StabiliTrak electronic stability control with Trailer Sway Control and Hill Start Assist
- Trailering Package
- Integrated trailer brake controller
- 3.23 rear axle ratio (standard equipment group)
Safety & Security
- GMC Pro Safety suite (see Driver Assistance for component list)
- Teen Driver mode
- Tire Pressure Monitoring System with Tire Fill Alert
- Safety Alert Seat
- 3 years of OnStar Safety & Security Plan coverage (included with OnStar Premium Plan)
Warranty
- 3-year/36,000-mile Bumper-to-Bumper Limited Warranty
- 5-year/100,000-mile Powertrain Limited Warranty (Duramax diesel powertrain coverage as shown on AT4 Monroney)
- 5-year/100,000-mile Roadside Assistance and Courtesy Transportation
- First scheduled maintenance visit (whichever comes first with applicable mileage/time limits; see GMC.com or dealer for terms)
- 6-year/100,000-mile rust-through corrosion perforation coverage (GM/GMC new-vehicle limited warranty terms)