City mpg:
16
Highway mpg:
21

Actual rating will vary with options, driving conditions, habits and vehicle condition.

2020 GMC Sierra 1500 Truck Overview

The standard features of the GMC Sierra 1500 Base include EcoTec3 4.3L V-6 285hp engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, curtain 1st and 2nd row overhead airbags, airbag occupancy sensor, air conditioning, 17" steel wheels, ABS and driveline traction control, StabiliTrak w/Proactive Roll Avoidance electronic stability, AM/FM stereo with 2 speakers.

2020 GMC
Sierra 1500 Truck

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Inventory

  • 2020 GMC Sierra 1500 AT4 Truck Crew Cab

    • MSRP:$61,740
    Engine:
    6.2L V-8 cyl,
    Transmission:
    10-Speed Automatic,
    MPG Range:
    16.0/21.0,
    Exterior Color:
    Carbon Black Metallic,
    Interior Color:
    Jet Black,
    Stock #:
    G311396,
    Stock Number:
    []
    More
    Front Bucket Seats (10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, Driver Memory)
    View Details
  • 2020 GMC Sierra 1500 Denali Truck Crew Cab

    • MSRP:$67,775
    Engine:
    6.2L V-8 cyl,
    Transmission:
    10-Speed Automatic,
    MPG Range:
    16.0/22.0,
    Exterior Color:
    Onyx Black,
    Interior Color:
    Jet Black,
    Stock #:
    G348363,
    Stock Number:
    []
    More
    Technology Package, Driver Alert Package II, Front Bucket Seats
    View Details
  • 2020 GMC Sierra 1500 Denali Truck Crew Cab

    • MSRP:$71,350
    Engine:
    6.2L V-8 cyl,
    Transmission:
    10-Speed Automatic,
    MPG Range:
    16.0/22.0,
    Exterior Color:
    Onyx Black,
    Interior Color:
    Jet Black,
    Stock #:
    G298886,
    Stock Number:
    []
    More
    Front Bucket Seats (10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, Driver Memory)
    View Details
  • 2020 GMC Sierra 1500 Denali Truck Crew Cab

    • MSRP:$71,850
    Engine:
    6.2L V-8 cyl,
    Transmission:
    10-Speed Automatic,
    MPG Range:
    16.0/22.0,
    Exterior Color:
    White Frost Tricoat,
    Interior Color:
    Jet Black,
    Stock #:
    G268027,
    Stock Number:
    []
    More
    Front Bucket Seats (10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, Driver Memory)
    View Details
  • 2020 GMC Sierra 1500 Denali Truck Crew Cab

    • MSRP:$69,170
    Engine:
    6.2L V-8 cyl,
    Transmission:
    10-Speed Automatic,
    MPG Range:
    16.0/22.0,
    Exterior Color:
    Red Quartz Tintcoat,
    Interior Color:
    Jet Black,
    Stock #:
    G310756,
    Stock Number:
    []
    More
    Front Bucket Seats (10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, Driver Memory)
    View Details
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Specifications

  • Rear cargo - tailgate
  • Bumpers - chrome
  • Rear step bumper
  • Trailer sway control
  • Engine liters - 4.3
  • Cylinder configuration - V-6
  • Horsepower - 285hp @ 5,300RPM
  • Torque - 305 lb.-ft. @ 3,900RPM
  • Number of valves - 12
  • Variable valve control
  • Cylinder deactivation
  • Engine location - front
  • Recommended fuel - Regular Unleaded
  • Transmission - 6 speed automatic
  • Mode select transmission
  • Manual-shift auto
  • Drive type - rear-wheel
  • Fuel economy combined - 17mpg
  • Fuel tank capacity - 28.0gal.
  • Fuel economy city - 16mpg
  • Fuel economy highway - 21mpg
  • Basic warranty - 36 months/36,000miles
  • Powertrain warranty - 60 months/60,000miles
  • Corrosion perforation warranty - 72 months/100,000miles
  • Roadside assistance coverage - 60 months/60,000miles
  • Maintenance warranty - 12 months/ unlimited distance
  • Front wheel independent suspension
  • Front anti-roll bar
  • Power steering
  • Speed-sensing steering
  • Front tires - 255/70SR17.0
  • Rear tires - 255/70SR17.0
  • Wheel size - 17"
  • Engine displacement - 4.3 L
  • Engine horsepower - 285hp @ 5,300RPM
  • Engine torque - 305 lb.-ft. @ 3,900RPM
  • Engine bore x stroke - 99.6mm x 92.0mm (3.92" x 3.62")
  • Compression ratio - 11.00 to 1
  • Payload - 1,016kg (2,240lbs)
  • Curb weight - 2,050kg (4,520lbs)
  • GVWR - 3,084kg (6,800lbs)
  • Towing capacity - 3,583kg (7,900lbs)
  • Exterior length - 5,832mm (229.6")
  • Exterior body width - 2,061mm (81.2")
  • Exterior height - 1,920mm (75.6")
  • Wheelbase - 3,546mm (139.6")
  • Turning radius - 6.8m (22.3')
  • Front legroom - 1,131mm (44.5")
  • Front headroom - 1,095mm (43.1")
  • Front hiproom - 1,547mm (60.9")
  • Front shoulder room - 1,678mm (66.1")
  • AM/FM radio
  • Premium audio system - GMC Infotainment System
  • Radio data system
  • Speakers - 2
  • Wireless phone connectivity - Bluetooth
  • 1st row LCD monitors - 1
  • Primary LCD size - 7.0"
  • Smart device integration - Apple CarPlay/Android Auto
  • Fully automatic headlights
  • Delay-off headlights
  • Variably intermittent wipers
  • Front reading lights
  • Rear reading lights
  • Display - analog
  • Tachometer
  • Voltmeter
  • Oil pressure gauge
  • Outside temperature display
  • Low tire pressure warning
  • Trip computer
  • Exterior parking camera rear
  • 4 wheel disc brakes
  • ABS brakes
  • Brake assist
  • Dual front impact airbags
  • Dual front side impact airbags
  • Overhead airbag
  • Occupant sensing airbag
  • Ignition disable
  • Electronic stability
  • Traction control
  • Max seating capacity - 3
  • Front seats - bench
  • Front center armrest
  • Ground clearance (min) - 206mm (8.1")
  • Air conditioning
  • Tilt steering wheel
  • Passenger vanity mirror
  • Front beverage holders
  • Overhead console
  • Driver door bin
  • Passenger door bin
  • Rear door bins

Trims

  MSRP Engine Transmission City/Hwy mpg
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  16 / 21  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  16 / 21  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  15 / 20  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  16 / 21  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  16 / 21  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  15 / 20  
SLE 2020 GMC Sierra 1500 Truck SLE Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  20 / 23  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  15 / 20  
2020 GMC Sierra 1500 Truck Search New Please Call   285-hp 4.3L 6-cyl  6-spd auto  15 / 20  
SLE 2020 GMC Sierra 1500 Truck SLE Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  20 / 23  
Elevation 2020 GMC Sierra 1500 Truck Elevation Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  20 / 23  
SLE 2020 GMC Sierra 1500 Truck SLE Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  20 / 23  
SLE 2020 GMC Sierra 1500 Truck SLE Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  19 / 22  
Elevation 2020 GMC Sierra 1500 Truck Elevation Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  20 / 23  
Elevation 2020 GMC Sierra 1500 Truck Elevation Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  20 / 23  
SLE 2020 GMC Sierra 1500 Truck SLE Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  19 / 22  
Elevation 2020 GMC Sierra 1500 Truck Elevation Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  19 / 22  
SLE 2020 GMC Sierra 1500 Truck SLE Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  19 / 22  
SLT 2020 GMC Sierra 1500 Truck SLT Search New Please Call   355-hp 5.3L 8-cyl  8-spd auto  17 / 24  
Elevation 2020 GMC Sierra 1500 Truck Elevation Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  19 / 22  
Elevation 2020 GMC Sierra 1500 Truck Elevation Search New Please Call   310-hp 2.7L 4-cyl  8-spd auto  19 / 22  
SLT 2020 GMC Sierra 1500 Truck SLT Search New Please Call   355-hp 5.3L 8-cyl  8-spd auto  17 / 24  
SLT 2020 GMC Sierra 1500 Truck SLT Search New Please Call   355-hp 5.3L 8-cyl  8-spd auto  17 / 24  
SLT 2020 GMC Sierra 1500 Truck SLT Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 22  
SLT 2020 GMC Sierra 1500 Truck SLT Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 22  
SLT 2020 GMC Sierra 1500 Truck SLT Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 22  
AT4 2020 GMC Sierra 1500 Truck AT4 Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 21  
AT4 2020 GMC Sierra 1500 Truck AT4 Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 21  
AT4 2020 GMC Sierra 1500 Truck AT4 Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 21  
Denali 2020 GMC Sierra 1500 Truck Denali Search New Please Call   355-hp 5.3L 8-cyl  8-spd auto  17 / 24  
Denali 2020 GMC Sierra 1500 Truck Denali Search New Please Call   355-hp 5.3L 8-cyl  8-spd auto  17 / 24  
Denali 2020 GMC Sierra 1500 Truck Denali Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 22  
Denali 2020 GMC Sierra 1500 Truck Denali Search New Please Call   355-hp 5.3L 8-cyl  10-spd auto  16 / 22  

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