2021 GMC Sierra 1500 AT4
Specifications, live market data, colors, and factory features.
702 for sale right now
$21,025 – $63,525
Specifications
Performance
- Engine
- 3.0L In-Line LM2
- Transmission
- Automatic
- Drivetrain
- 4WD
Fuel & Efficiency
- Fuel
- Diesel
- MPG City
- 22 mpg
- MPG Highway
- 26 mpg
- MPG Combined
- 24 mpg
Body & Practicality
- Body Style
- Truck
- Doors
- 4
Colors
Factory colors on 2021 GMC Sierra 1500 AT4s for sale now.
Exterior
- Summit White(white)76
- Onyx Black(black)57
- Satin Steel Metallic(gray)50
- Ebony Twilight Metallic(black)18
- Dark Sky Metallic(gray)16
- Cayenne Red Tintcoat(red)10
- Black8
- Cardinal Red(red)7
- Red6
- White5
Interior
- Jet Black w/Kalahari Accents(black)147
- Jet Black(black)86
- Jet Black With Kalahari Accents(black)15
- Black10
- Jet Black with Kalahari accents(black)7
- Jet Black W/Kalahari Acce(black)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
$39,998
Est. $583/mo*
Young Buick GMC of Burley
Used 2021 GMC Sierra 1500
$38,489
Est. $562/mo*
Van Horn Chrysler Dodge Jeep RAM Manitowoc
Used 2021 GMC Sierra 1500
$38,975
Est. $569/mo*
Okoboji Motor Company
Used 2021 GMC Sierra 1500
$40,664
Est. $593/mo*
Richard Lucas Chevrolet
Used 2021 GMC Sierra 1500
$37,234
Est. $544/mo*
Yonkers Honda
Used 2021 GMC Sierra 1500
$42,783
Est. $623/mo*
Legacy Buick GMC of Laurel
Used 2021 GMC Sierra 1500
$35,900
Est. $525/mo*
Stapp Interstate Toyota
Used 2021 GMC Sierra 1500
$38,015
Est. $555/mo*
Stew Hansen Buick GMC
What's Yours
Worth?
The median 2021 GMC Sierra 1500 AT4 lists for $37,626 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
- Keyless open and push-button start
- Remote start
- Premium all-weather floor liners
Driver Assistance
- Traction Select System with Off-Road and Tow/Haul modes
- Hill descent control
Entertainment
- GMC Infotainment 8-inch color touchscreen
- Apple CarPlay and Android Auto
- 6-speaker audio
- Bluetooth streaming
Exterior
- 18-inch wheels with all-terrain tires
- Skid plates and red recovery hooks
- LED headlights and LED taillights
- Heated power outside mirrors
- Dual exhaust with premium tips
Interior
- Leather-appointed front bucket seats with Kalahari accents
- Heated and ventilated front seats
- Heated steering wheel
- Heated second-row outboard seats (Crew Cab)
- 8-way power driver and passenger seats
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
- 4WD with 2-speed AutoTrac transfer case
- Off-road suspension with 2-inch factory lift and monotube shocks
- Auto-locking rear differential and hill descent control
Safety & Security
- StabiliTrak with traction control
- 4-wheel antilock disc brakes
- Teen Driver
- Rear Vision Camera
- Tire pressure monitoring system
Warranty
- 3-year/36,000-mile bumper-to-bumper warranty
- 5-year/60,000-mile powertrain warranty