
2020 GMC Sierra 1500
Mileage: 125,670 · Prosser, WA
$1,274 Above market
2020 GMC Sierra 1500 AT4 Crew Cab 4WD
Prosser, WA
$34,503
Request information
Features
Mileage
125,670
Drivetrain
Four-Wheel Drive
Exterior color
Onyx Black
Interior color
Jet Black w/Kalahari Accents
MPG
17 MPG
Engine
420 hp 6.2L V8
Fuel type
Gasoline
Transmission
Automatic
Overview
- Make:GMC
- Model:Sierra 1500
- Year:2020
- Trim:AT4
- Body type:Pickup Truck
- Exterior color:Onyx Black
- Interior color:Jet Black w/Kalahari Accents
- Mileage:125,670 mi
- Condition:Used
- VIN:1GTP9EELXLZ127018
- Stock number:U127018A
Fuel economy
- Fuel tank size:24 gal
- Combined gas mileage:17 MPG
- City gas mileage:15 MPG
- Highway gas mileage:19 MPG
- Fuel type:Gasoline
Performance
- Transmission:Automatic
- Drivetrain:Four-Wheel Drive
- Engine:420 hp 6.2L V8
- Horsepower:420 hp
Safety
- NHTSA overall safety rating:
- NHTSA frontal crash rating:
- NHTSA side crash rating:
- NHTSA rollover rating:
Measurements
- Doors:4 doors
- Front legroom:44 in
- Back legroom:43 in
- Cabin size:Crew Cab
- Cargo volume:69 in
Options
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History
Clean title
No issues reported.
0 accidents reported
No accidents or damage reported.
1 previous owner
Vehicle has one previous owner.
Pricing

No price changes
7 days at this dealership
Dealer

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Dealer's description
Vehicle Details: Discover the capability and comfort of this pre-owned 2020 GMC Sierra 1500 AT4, a rugged pickup built for work, adventure, and everyday driving. Equipped with 4WD and a powerful V8, 6.2L gasoline engine, this GMC Sierra AT4 delivers confident performance on the highway, jobsite, or backcountry roads. Inside, enjoy premium features designed for convenience and comfort, including Adaptive Cruise Control, Cross-Traffic Alert, Steering Wheel Audio Controls, Remote Start, and a Heated Steering Wheel. The AT4 trim adds bold styling, off-road attitude, and a commanding driving position. With spacious seating, advanced technology, and GMC craftsmanship, this truck is ready to handle your next weekend project or cross-country trip. Visit us in Prosser, WA to see this 2020 GMC Sierra 1500 AT4 today. If you're searching for a pre-owned GMC Sierra 1500 AT4 for sale in Prosser, WA, this is a standout choice. Its bold stance and capable 4WD system make it a smart option for drivers who want strength, style, and everyday versatility. Schedule your test drive and experience the power of the 6.2L V8 today. Whether you need a dependable daily driver, a tow-ready truck, or a premium off-road pickup, the GMC Sierra AT4 delivers the confidence, comfort, and capability serious truck shoppers want in every mile and every season ahead. Equipment: The installed navigation system will keep you on the right path. This 1/2 ton pickup's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The steering wheel audio controls on the vehicle keep the volume and station within easy reach. This unit offers Android Auto for seamless smartphone integration. Lane Keep Assist in this GMC Sierra helps maintain safe driving by gently steering to stay within the lane. An off-road package is equipped on this GMC Sierra. Protect this 1/2 ton pickup from unwanted accidents with a cutting edge backup camera system. Never get into a cold vehicle again with the remote start feature on this GMC Sierra. Keep your hands warm all winter with a heated steering wheel in the vehicle . This unit's Lane Departure Warning helps keep you in your lane. This 1/2 ton pickup has a clean CARFAX vehicle history report. The GMC Sierra has auto-adjust speed for safe following. Packages: AT4 Premium Package: 6" Rectangular Black Tubular Assist Steps. Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Perimeter Lighting; Lane Change Alert with Side Blind Zone Alert. Driver Alert Package II: Forward Collision Alert; Lane Keep Assist with Lane Departure Warning; Front Pedestrian Braking; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Adaptive Cruise Control - Camera. Technology Package: 8" Driver Information Centre; HD Surround Vision with 2 Trailer View Camera Provisions; Multi-Colour 15" Diagonal Head-Up Display; High Gloss Black Mirror Caps; Bed View Camera; Rear Camera Mirror. Preferred Equipment Group 4SB: Hitch Guidance; 2 USB Ports (1st Row); 3.23 Rear Axle Ratio; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Body-Colour Surround Grille; High-Capacity Air Filter; Skid Plates; Compass; 4.2" Diagonal Colour Display Driver Info Centre; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Front Bucket Seats; 10-Speed Automatic Transmission; Colour-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; All-Weather Floor Liners with AT4 Logo; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel and Telescoping Steering Column; HD Rear Vision Camera; LED Cargo Area Lighting; 7. 000 lbs (3. 175 Kg) GVWR; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Centre Console; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Electrical Lock Control Steering Column; Trailering Package; Off-Road Suspension; Steering Wheel Audio Controls; GMC Connected Access Capable; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; HD Radio; Red Recovery Hooks; Power Front Windows with Driver Express Up/down; Rear Dual USB Charging-Only Ports; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Heavy-Duty Rear Locking Differential; Power Door Locks. AT4 Preferred Package: Premium Bose 7-Speaker Sound System; Power Sliding Rear Window with Rear Defogger; Wireless Charging; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation. 20" X 9" Machined Aluminum Wheels. Power Sunroof. 6" Rectangular Black Tubular Assist Steps. Bed View Camera. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
Additional Information
AT4 Premium Package: 6" Rectangular Black Tubular Assist Steps,Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Perimeter Lighting; Lane Change Alert with Side Blind Zone Alert,Driver Alert Package II: Forward Collision Alert; Lane Keep Assist with Lane Departure Warning; Front Pedestrian Braking; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Adaptive Cruise Control - Camera,Technology Package: 8" Driver Information Centre; HD Surround Vision with 2 Trailer View Camera Provisions; Multi-Colour 15" Diagonal Head-Up Display; High Gloss Black Mirror Caps; Bed View Camera; Rear Camera Mirror,Preferred Equipment Group 4SB: Hitch Guidance; 2 USB Ports (1st Row); 3.23 Rear Axle Ratio; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Body-Colour Surround Grille; High-Capacity Air Filter; Skid Plates; Compass; 4.2" Diagonal Colour Display Driver Info Centre; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Front Bucket Seats; 10-Speed Automatic Transmission; Colour-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; All-Weather Floor Liners with AT4 Logo; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel and Telescoping Steering Column; HD Rear Vision Camera; LED Cargo Area Lighting; 7,000 lbs (3,175 Kg) GVWR; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Centre Console; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Electrical Lock Control Steering Column; Trailering Package; Off-Road Suspension; Steering Wheel Audio Controls; GMC Connected Access Capable; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; HD Radio; Red Recovery Hooks; Power Front Windows with Driver Express Up/down; Rear Dual USB Charging-Only Ports; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Heavy-Duty Rear Locking Differential; Power Door Locks,AT4 Preferred Package: Premium Bose 7-Speaker Sound System; Power Sliding Rear Window with Rear Defogger; Wireless Charging; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation,20" X 9" Machined Aluminum Wheels,Power Sunroof,6" Rectangular Black Tubular Assist Steps,Bed View Camera,Apple CarPlay/Android Auto smart device mirroring,Pedestrian impact prevention,4G LTE Wi-Fi Hotspot capable mobile hotspot internet access,Lane Keep Assist with Lane Departure Warning,Adaptive cruise control,Head-up display,Brake assist system,Cruise control with steering wheel mounted controls,Ventilated driver and front passenger seats,Integrated navigation system,Keyfob remote start,Heated steering wheel,Heated driver and front passenger seats,Heated rear seats,Leather front seat upholstery,Primary monitor touchscreen,Rear Cross-Traffic Alert collision warning,First-row sliding and tilting glass sunroof with express open activation sunshade,Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control,AutoTrac part and full-time 4WD,Front wireless smart device charging,Teen Driver restricted driving mode/alerts,Smart key with hands-free access and push button start,Aerial view camera,Push-button,Video-feed rearview mirror,Wireless audio streaming,Vehicle to trailer hitching assist,Front mounted camera,Right side camera,Pickup box camera,Left side camera,Lane Change Alert with Side Blind Zone Alert blind spot warning,Following Distance Indicator,Trailer light test,Trailer light malfunction warning,Trailer theft alarm,Dual-zone front climate control,IntelliBeam auto high-beam headlights,Immobilizer,Bluetooth handsfree wireless device connectivity,Trailer brake controller,Trailer sway control,Vehicle and trailer reverse assist with visual graphic guidance only,Premium GMC Infotainment System external memory control,Internet radio capability,6 USB ports,Configurable instrumentation gauges,StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll,Hill Descent Control (HDC)
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