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Auto City

400 North Johnson Avenue, El Cajon, CA 92020
4.7
4.7 out of 5 stars
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Used 2020 GMC Sierra 1500 SLT

72,555 miles
For Sale:$33,500

$1,400(-4%)price drop

Estimated payment:$760/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $30,500 and $35,900, while the current price is $33,500.$30,500 - $35,900$33,500

  • Priced at $33,500, this vehicle is within the current market price range of $30,500 to $35,900.

  • It has 72,555 miles, which is 13,245 (15%) below the median mileage of 85,800.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report

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  • Truck
  • Pickup
  • Crew Cab
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    72,555miles
  • Aggregate Ratings
    3.4
    3.4 out of 5 stars
  • Generation
    4(2019 - 2026)
  • Trim
    SLT
  • Drivetrain
    4X2
  • Transmission
    8-Speed Shiftable Automatic
  • Exterior Color
    Summit White (White)Factory Paint Code:GAZ
  • Interior Color
    Dark Walnut Slate (Gray)Factory Paint Code:HVE
  • Size Segment
    1/2 Ton
  • Doors
    4
  • Max Seating
    6
  • Max Towing Capacity
    11,300lbs.
  • Weight Class
    6,000-10,000 lbs. (2)
  • NHTSA Safety Ratings
    4
    4 out of 5 stars
  • Final Assembly Point
    Silao, Mexico
  • VIN
    3GTP8DED4LG389218

Engine5.3L V8 Gasoline 355hp

  • Fuel Type:Gasoline
  • Fuel Quality:87
  • Max Horsepower:355 hp @ 5600 rpm
  • Max Torque:383 ft.lbf @ 4100 rpm
  • Brand:EcoTec3
  • Displacement:5.3liters
  • Block Type:V
  • Cylinders:8
  • Aspiration:Naturally Aspirated
  • Fuel Induction:Direct Injection
  • Redline:5,800rpm
  • Oil Capacity:7.6liters
  • Cam Type:OHV
  • Stroke:3.62
  • Bore:3.78
  • Valves:16

Message from the seller

SLT Trim! Refined full-size truck with strength and upscale amenitiesAvailable now in San Diego, this 2020 GMC Sierra 1500 SLT combines towing capability, comfort, and modern technology—ideal for towing, hauling, or job site readiness. Powered by a peppy V8 (or available turbo four) with smooth transmission, it balances performance with versatility. The SLT trim adds chrome styling, alloy wheels, and a bedliner. Inside, plush leather seating, heated/ventilated front chairs, dual-zone climate, and power-adjustable driver seat bring signature comfort. A touchscreen infotainment system offers navigation, Apple CarPlay®, Android Auto™, Bluetooth®, and a rearview camera, while towing features and assistive driving tech increase utility. Powerful, polished, and highly capable—this Sierra SLT raises the bar for full-size trucks.At Auto City, quality starts with how we source our vehicles—primarily from private owners rather than auctions. This commitment to quality continues with our 3-day money-back guarantee and no-pressure sales process. With financing for all credit types and transparent pricing, you can buy with confidence.2020 GMC Sierra 1500 SLT for sale in San Diego by Auto City

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Listed on August 30, 2025 (8 months ago)
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This Used 2020 GMC Sierra 1500 SLT is available for drivers in San Diego, Chula Vista, El Cajon, Escondido, La Mesa, Spring Valley, Santee, National City ...

Cruz™ Disclaimer: Vehicle details shown on this site are provided by sellers or third parties. Cruz™ does not independently verify this information and is not liable for its accuracy. All services and content are offered without any warranty, either expressed or implied. Learn more here.MPG & Max Range: Fuel economy estimates are provided by the EPA and are intended for comparison purposes only. Your actual mileage will vary depending on driving conditions, vehicle condition, and other factors.Price: Prices shown may not include taxes, fees, or other charges. Prices and availability are subject to change without notice. Contact the seller for the most current pricing information.Options & Features: Installed options may not be shown. Contact the seller for more information about available features and options.