Reduced by $635 since Sep 08, 2026

2020 GMC Sierra 1500 SLT



  • $25,948 SULLIVAN PRICE

$480 /month
7.99% APR
72 months
  • Retail Value $24,525
  • Documentation Fee $998
  • Electronic Filing Fee $425
  • Sullivan Price $25,948
*Excludes tax, title & fees
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Vehicle Information

VIN: 3GTU8DED1LG128051
Stock #: 26F193B
  • Condition Used
  • Body Style Crew Cab
  • Exterior Color Summit White
  • Interior Color Jet Black, Perforated Leather-Appointed Front Seat Trim
  • Mileage 132,833
  • Fuel Economy
    City/Highway 17/23 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.

Dealer Comments

This 2020 GMC Sierra 1500 SLT combines capable performance with thoughtful design, offering a truck built for both work and daily driving.

- Power Sunroof
- Max Trailering Package
- SLT Premium Plus Package with 20 Polished Aluminum Wheels
- Spray-On Pickup Bed Liner
- Chrome Assist Steps
- GMC Protection Package with All-Weather Floor Liners
- Premium Bose 7-Speaker Sound System with SiriusXM
- Bed View Camera with Trailer Camera Provisions
- Console-Mounted Safe
- Heated and Ventilated Front Seats
- Adaptive Cruise Control
- Lane Keep Assist with Lane Departure Warning
- Ultrasonic Front and Rear Park Assist
- Wireless Charging
- 10-Way Power Driver Seat with Lumbar Support

The Sierra's EcoTec3 5.3L V8 engine delivers capable power paired with an 8-speed automatic transmission for smooth acceleration and reliable towing. With highway fuel economy rated at 24 MPG, this truck balances performance with efficiency on longer drives. The rear-wheel-drive configuration provides solid handling and predictable control whether you're navigating city streets or highway miles.

The Max Trailering Package equips this Sierra with serious capability, featuring a 9.76 rear axle, 3.42 axle ratio, enhanced cooling radiator, heavier-duty rear springs, and a 220-amp alternator. These upgrades work together to provide confidence when towing, while the Trailer Tire Pressure Monitor System keeps you informed on the road.

Inside, the cabin reflects quality and attention to detail. The SLT Premium Plus Package adds refinement with perforated leather-appointed front seat trim, heated and ventilated front seating, and 20 polished aluminum wheels. The heated steering wheel and power-adjustable driver's seat with lumbar support enhance comfort on every drive. Dual-zone automatic climate control maintains your preferred temperature, while the power sunroof brings natural light and fresh air to the cabin.

Technology keeps you connected and confident. The Premium GMC Infotainment System with navigation, Apple CarPlay, and Android Auto integration provides seamless smartphone connectivity. The Bose 7-speaker audio system delivers quality sound, while SiriusXM satellite radio expands your entertainment options. Safety features including Automatic Emergency Braking, Forward Collision Alert, Rear Cross Traffic Alert, and Lane Keep Assist with Lane Departure Warning help protect you and your passengers.

Practical features enhance daily utility. The bed-mounted 120-volt power outlet, LED cargo lighting, and bed view camera make loading and monitoring your cargo straightforward. The console-mounted safe provides secure storage for valuables, while all-weather floor liners protect the cabin during wet conditions. Chrome grille and bumpers, along with the polished exhaust tip, give the exterior a refined appearance.

This Sierra 1500 SLT represents a well-equipped truck ready for whatever comes next. We invite you to schedule a time to see it in person and experience its combination of capability, comfort, and quality craftsmanship firsthand.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Rear Wheel Drive
  • Fuel Economy
    • City: 17 MPG
    • Hwy: 23 MPG
    • Combined: 19 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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Disclaimer: ***The price you see is the price you get, with zero hidden fees. This amount excludes only official government charges, consisting of state and local sales tax, vehicle title, license, and registration fees. Final transaction pricing, sales terms, and financing approval are subject to final review and the sole determination of dealership management. Sullivan Buick GMC will NOT sell or lease New Vehicles in the states of Alaska, Montana, New Hampshire, or Oregon unless primary residence is loacted in mentioned state. The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

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