Speck Family Dealerships


Used 2020 GMC Sierra 1500 AT4 U227787A | Sunnyside, WA

Vehicle Information

VIN: 1GTP9EED8LZ227787
Stock #: U227787A
Model Code: TK10743
  • Body Style 4D Crew Cab
  • Exterior Color Satin Steel Metallic
  • Interior Color Jet Black
  • Mileage 120,313
  • Fuel Economy
    City/Highway 16/21 MPG
  • Engine 8 Cyl - 5.3 L
  • Transmission 10-Speed Automatic
  • Fuel Type Gasoline

Highlighted Features

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

Dealer Comments

Discover the ultimate off-road companion in this 2020 GMC Sierra 1500 AT4. Boasting a rugged and capable design, this truck is ready to take on any adventure you have in mind.

- Local Trade In
- AT4 Preferred Package
- Preferred Equipment Group 4SB
- Trailering Package
- HD Radio
- Premium Bose 7-Speaker Sound System
- Radio: Premium GMC Infotainment Sys w/Navigation
- SiriusXM w/360L
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- Power Sliding Rear Window w/Rear Defogger
- 120-Volt Bed Mounted Power Outlet
- Wireless Charging
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
- Integrated Trailer Brake Controller

Powered by the reliable EcoTec3 5.3L V8 engine and paired with a 10-speed automatic transmission, this Sierra 1500 AT4 delivers exceptional performance and capability. With 4-wheel drive, you'll conquer any terrain with confidence, whether you're tackling rugged off-road trails or navigating inclement weather.

The exterior of this Sierra 1500 AT4 exudes a bold and rugged presence, with a gray finish that complements the aggressive styling. The body-color surround grille, high-capacity air filter, and spray-on bedliner with AT4 logo add to the truck's distinctive character. The LED cargo area lighting and deep-tinted glass further enhance the overall aesthetic.

Step inside the cabin, and you'll be greeted by a wealth of premium features that elevate your driving experience. The perforated leather-appointed front seats are both heated and ventilated, ensuring your comfort in any climate. The Bose premium audio system, along with the 4G LTE Wi-Fi hotspot and wireless charging, keep you connected and entertained on the go.

Safety and convenience are also top priorities, with features like the HD Rear Vision Camera, Theft Deterrent System, and Keyless Open and Start ensuring your peace of mind. The In-Vehicle Trailering App and Integrated Trailer Brake Controller make towing a breeze, while the Hill Descent Control and Red Recovery Hooks provide added confidence when tackling challenging terrain.

This 2020 GMC Sierra 1500 AT4 is a true off-road champion, blending exceptional capability, premium comfort, and advanced technology. Experience the ultimate in truck versatility and take command of the road ahead. Visit our showroom today to schedule a test drive and discover why this Sierra 1500 AT4 is the perfect fit for your next adventure.

All Features

  • AT4 Preferred Package
  • Preferred Equipment Group 4SB
  • Trailering Package
  • 6 Speakers
  • 6-Speaker Audio System Feature
  • AM/FM radio: SiriusXM with 360L
  • HD Radio
  • Premium audio system: GMC Infotainment System
  • Premium Bose 7-Speaker Sound System
  • Radio data system
  • Radio: Premium GMC Infotainment Sys w/Multi-Touch
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • SiriusXM w/360L
  • Steering Wheel Audio Controls
  • Air Conditioning
  • Automatic temperature control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
  • 12-Volt Rear Auxiliary Power Outlet
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • Driver Memory
  • Memory seat
  • Power driver seat
  • Power Front Passenger Windows w/Express Up/Down
  • Power Front Windows w/Driver Express Up/Down
  • Power Rear Windows w/Express Down
  • Power steering
  • Power windows
  • Remote keyless entry
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Universal Home Remote
  • Electrical Lock Control Steering Column
  • Manual Tilt-Wheel & Telescoping Steering Column
  • Off-Road Suspension
  • Speed-sensing steering
  • Traction control
  • 4-Wheel Disc Brakes
  • ABS brakes
  • Dual front impact airbags
  • Dual front side impact airbags
  • Front anti-roll bar
  • Front wheel independent suspension
  • Keyless Open & Start
  • Low tire pressure warning
  • Occupant sensing airbag
  • Overhead airbag
  • Power Door Locks
  • Brake assist
  • Electronic Stability Control
  • Hill Descent Control
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Panic alarm
  • Security system
  • Theft Deterrent System (Unauthorized Entry)
  • Speed control
  • Heavy-Duty Rear Locking Differential
  • 170 Amp Alternator
  • Auxiliary External Transmission Oil Cooler
  • Auto-dimming door mirrors
  • Body-Color Surround Grille
  • Bumpers: body-color
  • Heated door mirrors
  • High Gloss Black Mirror Caps
  • High-Capacity Air Filter
  • LED Cargo Area Lighting
  • Power door mirrors
  • ProGrade Trailering System
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Spray-On Pickup Bed Liner w/AT4 Logo
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • 4.2" Diagonal Color Display Driver Info Center
  • 4G LTE Wi-Fi Hotspot Capable
  • All-Weather Floor Liners w/AT4 Logo (LPO)
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Driver door bin
  • Driver vanity mirror
  • Floor-Mounted Center Console
  • Front reading lights
  • GMC Connected Access Capable
  • HD Rear Vision Camera
  • Heated steering wheel
  • Illuminated entry
  • OnStar & GMC Connected Services Capable
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Dual USB Charging-Only Ports
  • Rear reading lights
  • Rear seat center armrest
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Voltmeter
  • Wireless Charging
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • Front Bucket Seats
  • Front Center Armrest
  • Heated 2nd Row Outboard Seats
  • Heated Driver & Front Outboard Passenger Seating
  • Heated front seats
  • Heated rear seats
  • Perforated Leather-Appointed Front Seat Trim
  • Power passenger seat
  • Split folding rear seat
  • Ventilated Driver & Front Passenger Seats
  • Ventilated front seats
  • Passenger door bin
  • Hitch Guidance
  • Hitch Guidance w/Hitch View
  • In-Vehicle Trailering App
  • Integrated Trailer Brake Controller
  • Red Recovery Hooks
  • 18" x 8.5" Machined Aluminum Wheels
  • Alloy wheels
  • Deep-Tinted Glass
  • Power Sliding Rear Window w/Rear Defogger
  • Variably intermittent wipers
  • 3.23 Rear Axle Ratio
  • Local Trade In
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*All prices plus applicable sales tax, license, and a negotiable documentary service fee up to $200 may be added to sales price or capitalized cost of the vehicle. One vehicle unless otherwise noted and subject to prior sale without notice. While supplies last. All advertised vehicles sold as-is without any implied warranty from the dealer unless specifically noted. Price Expires Today. Courtesy Transportation Vehicles have more miles than a normal retail unit. MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the Fuel Economy portion of the EPA's website for details, including a MPG recalculation tool). For more information on America's Best Warranty, click here. By adding a mobile phone number to your submission, you confirm you are the owner and/or primary user of the mobile phone number provided, you agree to our Privacy Policy, and you agree to receive marketing calls and/or text messages from Speck Auto Group at the phone number provided. This is not a condition of any purchase. Message and data rates may apply. You may text STOP to opt out of texting at any time.