2021 GMC Sierra 1500 AT4
Specifications, live market data, colors, and factory features.
884 for sale right now
$21,850 – $50,150
Specifications
Performance
- Engine
- 6.2L V-Shaped L87 - DI DFM, ALUM, GEN 5
- Transmission
- Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Gasoline
- MPG City
- 14 mpg
- MPG Highway
- 19 mpg
- MPG Combined
- 16 mpg
Body & Practicality
- Body Style
- Truck
- Doors
- 4
Colors
Factory colors on 2021 GMC Sierra 1500 AT4s for sale now.
Exterior
- Summit White(white)42
- Onyx Black(black)40
- Satin Steel Metallic(gray)25
- Cayenne Red Tintcoat(red)9
- Dark Sky Metallic(blue)6
- Black6
- Ebony Twilight Metallic(black)6
- Gray4
- Red3
- Steel Metallic(gray)2
Interior
- Jet Black w/Kalahari Accents(black)91
- Jet Black(black)34
- Jet Black With Kalahari Accents(black)12
- Black4
- Jet Black with Kalahari accents(black)4
- Jet Black W/Kalahari Accents(black)1
- Dark Walnut/Dark Ash Gray(gray)1
Live Market Data
Computed from active 2021 GMC Sierra 1500 AT4 listings nationwide, updated continuously.
Price Distribution
Price vs. Mileage
Latest AT4 Listings
The newest 2021 GMC Sierra 1500 AT4s on the market.
Used 2021 GMC Sierra 1500
$35,211
Est. $515/mo*
Rick Hendrick City Chevrolet
Used 2021 GMC Sierra 1500
$32,320
Est. $474/mo*
Capitol Chevrolet
Used 2021 GMC Sierra 1500
$27,448
Est. $404/mo*
K-M-P Auto Group, LLC
Used 2021 GMC Sierra 1500
$35,206
Est. $515/mo*
Group 1 Ford of South Austin
Used 2021 GMC Sierra 1500
$40,732
Est. $594/mo*
Cox Chevrolet Mazda
Used 2021 GMC Sierra 1500
$35,990
Est. $526/mo*
Jim Burke Ford
Used 2021 GMC Sierra 1500
$34,698
Est. $508/mo*
Prince Chevrolet Buick GMC of Valdosta
Used 2021 GMC Sierra 1500
$31,279
Est. $459/mo*
Jeff Perry Chevrolet Buick Cadillac
What's Yours
Worth?
The median 2021 GMC Sierra 1500 AT4 lists for $36,380 today.
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GMC Sierra 1500 AT4
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Factory Features
Standard equipment from the window sticker, reviewed for accuracy.
Comfort & Convenience
- Dual-zone automatic climate control
- Heated leather-wrapped steering wheel
- Remote start and keyless open/start
- Second-row air vents
Driver Assistance
- IntelliBeam auto high-beam headlamps
- Rear vision camera
- Hitch Guidance
Entertainment
- GMC Infotainment 3 with 8-inch touchscreen
- Apple CarPlay and Android Auto
- Bluetooth streaming audio
Exterior
- 18-inch machined aluminum wheels
- AT4-specific grille, red recovery hooks, and skid plates
- GMC MultiPro six-function tailgate
- LED headlights and LED taillamps
Interior
- Jet Black leather-appointed seats with Kalahari accents
- Heated and ventilated front bucket seats
- Heated second-row outboard seats
- 8-inch GMC Infotainment touchscreen
Mechanical & Performance
- 5.3L EcoTec3 V8 with Dynamic Fuel Management — 355 hp and 383 lb-ft (6.2L V8 and 3.0L Duramax diesel available)
- 10-speed automatic with tow/haul and grade braking
- 4WD with 2-speed AutoTrac transfer case and Terrain mode
- Off-road suspension with 2-inch factory lift and monotube shocks
- Auto-locking rear differential and Hill Descent Control
Safety & Security
- Automatic Emergency Braking and Forward Collision Alert
- Lane Keep Assist with Lane Departure Warning
- Front Pedestrian Braking
- Following Distance Indicator
Warranty
- 3-year/36,000-mile basic warranty
- 5-year/60,000-mile powertrain warranty