LaFontaine Automotive Group

2021 GMC Sierra 1500 AT4



  • $40,614 Everyone Price

  • Sale Price $40,300
    • +$314
  • Everyone Price $40,614

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Vehicle Information

VIN: 3GTP9EED5MG417368
Stock #: 26W2611A
Model Code: TK10543
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents, Perforated Leather Front Seat Trim
  • Mileage 40,168
  • Fuel Economy
    City/Highway 14/19 MPG
  • Engine Engine: 5.3L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
  • Transmission Automatic
  • Fuel Type Gasoline Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.
  • Bluetooth®
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Leather Seats
  • Cruise Control

Dealer Comments

2021 GMC Sierra 1500 AT4 in stunning Black with jet black leather-appointed seating — this Crew Cab Short Box combines premium style with serious capability. With just over 40,000 miles, this 4WD truck delivers the power of an EcoTec3 5.3L V8 paired with a smooth 10-speed automatic transmission. The AT4 trim brings authentic off-road engineering and comprehensive features designed for both work and weekend adventures.

- 20 machined aluminum wheels with carbon grey metallic accents
- Premium GMC Infotainment System with AM/FM radio and SiriusXM 360L
- Apple CarPlay and Android Auto compatibility
- Heated and ventilated front seats with 10-way power driver adjustment
- Off-road suspension with hill descent control and auto-locking rear differential
- Spray-on bed liner with AT4 logo
- ProGrade Trailering System with integrated trailer brake controller
- 120-volt bed and instrument panel power outlets
- Remote vehicle starter system
- HD rear vision camera with hitch guidance

GMC CarBravo Certified with these coverage benefits:
- 126 Point Inspection
- Roadside Assistance
- $0 Warranty Deductible
- Vehicle History Report
- All warranty repairs include parts, labor, and towing to the nearest CarBravo dealership (if necessary)
- Alternative transportation provided while your vehicle is in for warranty service
- GM Rewards points earned toward GM Certified Service and eligible accessories (requires membership at delivery)
- 1-month trial of OnStar safety services including Automatic Crash Response and Roadside Assistance
- SiriusXM access to 165+ channels in vehicle plus 350+ channels on app

The AT4 package elevates your truck experience with Preferred Equipment Group 4SB and a comprehensive Trailering Package. EPA-estimated 15 city / 21 highway MPG. Actual mileage may vary. Visit us today to experience this versatile Sierra in person and discover why the AT4 stands apart.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 14 MPG
    • Hwy: 19 MPG
    • Combined: 16 MPG
  • Fuel System
    • Fuel System: Direct Injection
  • Fuel Tank Capacity
    • Fuel Tank Capacity: 24 gal
  • Fuel Type
    • Fuel Type: Gasoline Fuel
  • Horse Power
    • Horse Power: 355
  • Rear Wheel
    • Rear Wheel: Single
  • Trailering Capacity
    • Trailering Capacity: 0
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Dealer Doc Fee of $280 is not included in final price.

NEW / USED VEHICLES: All advertised prices include the dealer documentation fee of $280 and CVR fee of $34. Prices do not include applicable Michigan sales tax, title, license, registration fees, or any applicable government fees, finance charges, emissions testing fees, dealer-installed addendum items, or other fees not specifically itemized. All prices, specifications, and availability are subject to change without notice. Advertised prices are valid only on the date displayed and expire at the close of each business day. Please contact the dealer to confirm current pricing and availability. Dealer reserves the right to correct pricing or typographical errors at any time. Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. Vehicle images are for illustrative purposes only and may not reflect the exact vehicle, options, colors, trim levels, or body styles available in inventory. All vehicles are subject to prior sale. This site and all information and materials appearing on it are provided “as is” without warranty of any kind, either express or implied. Not all buyers will qualify for all offers. Advertised pricing may not be compatible with special finance, lease, or other promotional programs and may be contingent upon dealer-arranged financing or other conditions, if applicable. NEW VEHICLES: The Manufacturer’s Suggested Retail Price (MSRP) does not include tax, title, license, registration, or dealer-installed options. Dealer sets final price.