Reduced by $3,500 since Oct 16, 2026

CarBravo 2020 GMC Sierra 1500 SLT



  • $26,995 Marion Motors Price


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Vehicle Information

VIN: 3GTU9DET8LG345312
Stock #: 26515A
Model Code: TK10543
  • Condition Used
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black, Perforated Leather-Appointed Front Seat Trim
  • Mileage 90,447
  • Fuel Economy
    City/Highway 15/20 MPG
  • Engine Engine: 3.0L, DuraMax Turbo-Diesel, Inline 6 Cylinder
  • Transmission Automatic
  • Fuel Type Diesel Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

This 2020 GMC Sierra 1500 SLT in black delivers the capability and comfort you need for work and life on your terms. With a 3.0L Duramax diesel turbocharged engine producing 277 horsepower and 460 lb-ft of torque, this 4WD truck combines efficiency with power, achieving 22 city and 26 highway MPG. The well-maintained truck arrives with a full tank of gas and includes dealer discount financing options.

- 3.0L Duramax Diesel Turbocharged Engine with 277 hp and 460 lb-ft of torque
- SLT Premium Plus Package with 20 polished aluminum wheels and chrome assist steps
- Spray-on bedliner with GMC logo and tri-fold hard tonneau cover
- Premium Bose 7-speaker sound system with GMC infotainment and navigation
- Heated and ventilated leather front seats with 10-way power adjustability
- Engine block heater for reliable cold-weather starts
- Advanced Driver Alert Packages I & II with lane departure warning and forward collision alert
- All-weather floor liners for first and second rows
- Remote vehicle starter system and keyless entry with push-button start
- Adaptive cruise control with following distance indicator
- ProGrade trailering system with integrated brake controller and hitch guidance
- 4G LTE wi-fi hotspot capability and wireless charging
- Automatic emergency braking and rear cross-traffic alert
- Ultrasonic front and rear parking assist with hitch view camera

The truck's 4WD system and heavy-duty suspension provide confident traction in any weather condition. Chrome bumpers, a chrome grille, and heated auto-dimming mirrors contribute to both its striking appearance and practical functionality. The full suite of driver assistance features—including lane keep assist, safety alert seat, and automatic high beams—helps keep you safe on every journey.

Inside, the spacious cabin features heated and ventilated front seats, a heated steering wheel, and split-folding rear seating for flexibility. The premium infotainment system with navigation, Apple CarPlay, Android Auto, and SiriusXM connectivity keeps you informed and entertained. Multiple USB ports, a 120-volt bed-mounted power outlet, and an overhead console provide convenient charging and storage solutions.

This Sierra is built for those who demand both capability and refinement. The truck bed includes a spray-on bedliner to protect your investment, while the tri-fold tonneau cover secures cargo and enhances aerodynamic efficiency. The ProGrade trailering system makes towing straightforward with integrated brake control and hitch guidance technology to assist when backing up.

The well-maintained condition of this truck reflects careful ownership. Combined with special financing available through our dealership and a full tank of gas already included, this Sierra 1500 SLT represents a smart investment in a vehicle that will serve you dependably for years to come. Contact our sales team today to arrange a test drive and experience the quality and capability this truck offers.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 15 MPG
    • Hwy: 20 MPG
    • Combined: 17 MPG
  • Fuel System
    • Fuel System: Direct Injection
  • Fuel Tank Capacity
    • Fuel Tank Capacity: 24 gal
  • Fuel Type
    • Fuel Type: Diesel Fuel
  • Horse Power
    • Horse Power: 277
  • Rear Wheel
    • Rear Wheel: Single
  • Trailering Capacity
    • Trailering Capacity: 0

CarBravo Benefits

Certified Used Vehicles: Enjoy peace of mind knowing that all CarBravo vehicles are inspected and certified by Certified Service Technicians through our rigorous Multi-Point Inspection.1

IMPORTANT RECALL INFORMATION: Before a CarBravo vehicle is listed or sold, GM requires dealers to complete all safety recalls. However, because even the best processes can break down, we encourage you to check the recall status of any vehicle through your GM account and NHTSA.

Standard Limited Warranty: Every certified used vehicle comes equipped with a Standard Limited Warranty2 to help you feel confident in your purchase and on the road.

  • Vehicles with less than 10 model years and 100,000 miles get 12-Month/12,000-Mile Bumper-To-Bumper Limited Warranty3 coverage with no deductible.

Non-GM vehicle coverage terms different in the state of California. See dealer for details.

  • Vehicles greater than 10 and less than 15 model years and/or greater than 100,000 and less than 150,000 miles get 30-Day/1,000-Mile Powertrain Limited Warranty4 coverage.

Certified Service Centers: There are 3,800+ Certified Service Centers nationwide, so you can get your vehicle serviced or repaired no matter where you drive.

24-Hour Roadside Assistance: Should your vehicle need a tow or jump, help is just a call away with Roadside Assistance.5

Courtesy Transportation: If your vehicle needs warranty repair, your CarBravo dealer will make sure you have alternative transportation or reimburse you for a temporary vehicle with Courtesy Transportation.6

Vehicle Exchange Program: Not feeling your ride? Bring it on back with our 10-Day/500-Mile Vehicle Exchange Program7 and try another one of our amazing certified used vehicles.


1 See dealer for complete details. Multi-Point Inspections vary by participating dealer.

2 12-month/12,000-mile Bumper-to-Bumper Limited Warranty**, whichever comes first, if labeled a CarBravo vehicle, which is in addition to and begins upon the expiration of any remaining original factory warranty. 30-day/1,000-mile Powertrain Limited Warranty**, whichever comes first, if labeled a BravoBudget vehicle. See participating dealer and warranty booklet for limited warranty eligibility and coverage details, including limitations and exclusions. **Except for non-GM vehicles in California, where coverage will be provided by a separate vehicle service contract.

3 12-Month/12,000-Mile Bumper-to-Bumper Limited Warranty**, whichever comes first, in addition to any remaining original factory Bumper-to-Bumper warranty. See participating dealer and warranty booklet for limited warranty eligibility and coverage details, including limitations and exclusions. **Except for non-GM vehicles in California, where coverage will be provided by a separate vehicle service contract.

4 30-Day/1,000-Mile Powertrain Limited Warranty, whichever comes first, from original in-service date. See participating dealer and warranty booklet for limited warranty eligibility and coverage details, including limitations and exclusions. For non-GM vehicles covered components vary from GM vehicles, please see a participating CarBravo dealer for component coverage details and full Terms and Conditions.

5 For the duration of the CarBravo Bumper-to-Bumper or Powertrain Limited Warranty (or vehicle service contract for non-GM vehicles). See dealer for details.

6 For the duration of the CarBravo Bumper-to-Bumper or Powertrain Limited Warranty (or vehicle service contract for non-GM vehicles). Subject to vehicle availability. Refer to your Owner's Manual or consult your dealer for more details.

7 Whichever comes first. Vehicle exchange only. Limitations apply. See dealer for details.

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May not represent actual vehicle. (Options, colors, trim and body style may vary)

The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.