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2020 GMC Sierra 3500

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GMC Sierra 3500 highlights

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All GMC Sierra 3500 years

New for 2020

  • The Sierra 3500 is available in a new trim called the AT4.
  • Sierra 3500 trims have been upgraded with Rear Seat Heaters, Smart Key, Blind Spot Monitor, and 20 Inch Plus Wheels as standard equipment this year.
  • The SLE trim now comes with Dual Rear Wheels as standard equipment.
  • The SLT trim now comes with Heated Steering Wheel and Dual Rear Wheels as standard equipment.
  • The Denali trim now comes with Dual Rear Wheels as standard equipment.

Explore GMC Sierra 3500 details

Base 2WD 2D Regular Cab

Standard Features

  • ABS Brakes
  • Air Conditioning
  • AM/FM Stereo
  • Apple CarPlay
  • Automatic Transmission
  • Auxiliary Audio Input
  • Bluetooth Technology
  • Power Windows
  • Traction Control
  • Vinyl Seats

Optional Features

  • Alloy Wheels
  • Bed Cover
  • Bed Liner
  • Blind Spot Monitor
  • Cloth Seats
  • Cruise Control
  • Dual Rear Wheels
  • Fifth Wheel Tow Hitch
  • Flex Fuel Vehicle
  • Gooseneck Tow Hitch
  • Lane Departure Warning
  • Long Bed
  • Navigation System
  • Parking Sensors
  • Power Locks
  • Power Mirrors
  • Rear Defroster
  • Rear View Camera
  • Running Boards
  • Smart Key
  • Tow Hitch

Drive type


Engine size




Ratings & reliability

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2020 GMC Sierra 3500 trims


  • 401-hp, 464-lb-ft of torque 6.6L
  • 445-hp, 910-lb-ft of torque 6.6L
  • 6.6L
  • Side Airbags
  • Overhead Airbags
  • Rear View Camera
  • Vinyl Seats
  • Traction Control
  • Automatic Transmission
  • Apple CarPlay
  • Android Auto
  • View our GMC Sierra 3500 inventory



  • Includes all features available on the SLE
  • Memory Seats
  • Front Seat Heaters
  • Power Seats
  • Leather Seats
  • Remote Start
  • Smart Key
  • Heated Steering Wheel
  • Rear Defroster
  • View our GMC Sierra 3500 SLT inventory


  • Includes all features available on the SLT
  • Rear Seat Heaters
  • A/C Seats
  • Bed Liner


  • Includes all features available on the AT4
  • Parking Sensors
  • Blind Spot Monitor
  • Lane Departure Warning
  • Running Boards
  • 20 Inch Plus Wheels
  • BOSE Sound System
  • Navigation System
  • View our GMC Sierra 3500 Denali inventory

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* Price excludes taxes, title, registration, and fees. Applicable transfer fees are due in advance of vehicle delivery and are separate from sales transactions.

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