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Map 18945 S. Twenty Mile Rd., Parker, CO Today 9-7pm Hours (303) 771-1007 Call
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2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
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2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
37
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2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO
2020 GMC Sierra 1500 AT4 Parker CO

2020 GMC Sierra 1500 AT4

# T144555, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED, 69,438 mi.
VIN 3GTP9EEDXLG144555
Fuel Economy 16/21
Sale Price
$39,995
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Vehicle info

Type
Used
Model
Sierra 1500
Trim
AT4
Body
Crew Cab Pickup
Exterior Color
Satin Steel Metallic
Interior Color
Jet Black w/Kalahari Accents
Stock
T144555
VIN
3GTP9EEDXLG144555
Mileage
69,438
Fuel Type
Gasoline Fuel
Drivetrain
Four Wheel Drive
EPA City
16
EPA Highway
21
Portions of the data provided are © 2025 Autodata, Inc. dba ChromeData

ABOUT THIS VEHICLE

Welcome to Greenwood Automotive! A family owned and operated dealership like none other, we've been changing the way customers feel about the car buying experience since 2007. We're proud to offer the very best in quality, selection, and service. Our friendly staff will always go the extra mile to ensure that you get exactly what you need.

Take this 2020 GMC Sierra 1500 AT4 for example.... Offered in Satin Steel Metallic exterior with Jet Black w/Kalahari Accents interior, it's certain to make a great addition to your family or business! Take note of all this vehicle has to offer:




Important/Valuable Packages & Equipment

Driver Alert Package I

  • Perimeter Lighting
  • Ultrasonic Front and Rear Park Assist
  • Rear Cross Traffic Alert
  • Lane Change Alert with Side Blind Zone Alert

AT4 Preferred Package

  • Power Sliding Rear Window with Rear Defogger
  • Premium GMC Infotainment System Radio with Navigation
  • Wireless Charging
  • Universal Home Remote
  • Premium Bose 7-Speaker Sound System

AT4 Premium Package ($2,855 value)

  • 6" Rectangular Black Tubular Assist Steps

Preferred Equipment Group 4SB

  • All-Weather Floor Liners with AT4 Logo
  • GMC Connected Access Capable
  • Power Front Passenger Windows with Express Up/down
  • Power Rear Windows with Express Down
  • Deep-Tinted Glass
  • Keyless Open and Start
  • Power Door Locks
  • Power Front Windows with Driver Express Up/down
  • Rear Wheelhouse Liners
  • Color-Keyed Carpeting Floor Covering
  • Remote Vehicle Starter System
  • Electric Rear-Window Defogger
  • Spray-On Pickup Bed Liner with AT4 Logo
  • Compass
  • Hitch Guidance
  • Floor-Mounted Center Console
  • Heavy-Duty Rear Locking Differential
  • Body-Color Surround Grille
  • Hill Descent Control
  • Integrated Trailer Brake Controller
  • High-Capacity Air Filter
  • Heated Driver and Front Outboard Passenger Seating
  • Heated 2nd Row Outboard Seats
  • 120-Volt Instrument Panel Power Outlet
  • Auxiliary External Transmission Oil Cooler
  • 12-Volt Rear Auxiliary Power Outlet
  • Ventilated Driver and Front Passenger Seats
  • 170 Amp Alternator
  • 5.3L EcoTec3 V8 Engine
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • Electrical Lock Control Steering Column
  • Manual Tilt-Wheel and Telescoping Steering Column
  • 2-Speed Transfer Case
  • Skid Plates
  • ProGrade Trailering System
  • HD Radio
  • 4.2" Diagonal Color Display Driver Info Center
  • OnStar and GMC Connected Services Capable
  • LED Cargo Area Lighting
  • Red Recovery Hooks
  • Steering Wheel Audio Controls
  • Rear Dual USB Charging-Only Ports
  • Theft Deterrent System (unauthorized Entry)
  • HD Rear Vision Camera
  • 4G LTE Wi-Fi Hotspot Capable
  • Off-Road Suspension
  • Trailering Package

Safety and Security

  • Rear camera - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. The rear camera is an extra set of eyes that's both convenient and safe.
  • Rear camera - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. The rear camera is an extra set of eyes that's both convenient and safe.
  • Brake assist - Stop right there. Something jumps out into the middle of the road and you need to stop now! With brake assist, you will. It uses the speed of the brake pedal's travel to sense panic braking, then applies all available power to boost your stopping power. Brake assist can stop the accident before it is one.

Technology and Telematics

  • Smart device mirroring - Smartphone, meet smart car. You can control your device through your vehicle's infotainment system. Smart device mirroring brings together safety and convenience by making it easier to find what you're looking for while keeping your eyes on the road.
  • Mobile hotspot - WiFi on the fly. Connect your devices to the Internet through your vehicle's private mobile hotspot and take the internet wherever your journey takes you, without eating up your data allowance. Find the hotspot with mobile hotspot.


Other Notable Features/Options


Let us show you why Greenwood Automotive is the dealership you can trust. To verify availability on this or any vehicle, please contact our client care team at (303) 771-1007 or stop by see us at 18945 Twenty Mile Lane Parker CO 80134. Whether you are looking for German luxury, classic American muscle, a tough truck, or a Jeep, our friendly staff will always go the extra mile to ensure that you get exactly what you need. Dealer Handling fee of $599 is included in our advertised price. Government fees and licensing are additional costs.

EQUIPMENT DETAIL

Generic
  • 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Air conditioning, dual-zone automatic climate control
  • Air filter, high-capacity
  • Air vents, rear
  • Airbags, dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
  • Alternator, 170 amps (Included and only available with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine. Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Audio system feature, 6-speaker system
  • Automatic Stop/Start
  • Battery, heavy-duty 730 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (L84) 5.3L EcoTec3 V8 engine, (L3B) 2.7L Turbo engine and (L87) 6.2L EcoTec3 V8 engine.)
  • Bed Liner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (AT4 logo replaces GMC logo. Deleted with (PCP) AT4 CarbonPro Edition. Double Cab and Crew Cab models are available with Ship Thru codes (VCO), (VDT), (VYC) or (VYS).)
  • Brake lining wear indicator
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Bumper, front, body-color lower (Front bumper color will be high gloss black.)
  • Bumper, rear body-color with corner steps
  • Capless Fuel Fill
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
  • Compass, located in instrument cluster
  • Cooling, auxiliary external transmission oil cooler (Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
  • Cooling, external engine oil cooler (Not available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
  • CornerStep, rear bumper
  • Differential, heavy-duty locking rear
  • Door handles, body-color
  • Driver Information Center, 4.2" diagonal color display includes driver personalization
  • Engine, 5.3L EcoTec3 V8 (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm); featuring all-new Dynamic Fuel Management that enables the engine to operate in 17 different patterns between 2 and 8 cylinders, depending on demand, to optimize power delivery and efficiency
  • Exhaust, aluminized stainless-steel muffler and tailpipe
  • Exhaust, dual with premium tips (With (PCP) AT4 CarbonPro Edition the exhaust tips will be black.)
  • Exterior Temperature Display, located in radio display
  • Floor covering, color-keyed carpeting
  • Fog lamps, LED
  • Four wheel drive
  • Frame, fully-boxed, hydroformed front section
  • Glass, deep-tinted
  • GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)
  • Grille (Body-color surround with high gloss Black mesh and Black chrome inserts. With (PCP) AT4 CarbonPro Edition the grille will have a unique grille surround with Black Chrome finish.)
  • GVWR, 7000 lbs. (3175 kg) (Requires Crew Cab model with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine. Requires Double Cab model with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
  • Hill Descent Control
  • Hitch Guidance
  • In-vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder and trailer electrical diagnostics
  • Instrument cluster, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
  • Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel.
  • LED Cargo Area Lighting located in cargo box activated with switch on center switch bank or key fob
  • LPO, All-weather floor liners, 1st and 2nd rows (includes AT4 logo)
  • Mirror caps, high gloss Black
  • Pickup bed
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
  • Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (U1D) In-vehicle Trailering App
  • Radio, HD
  • Rear axle, 3.23 ratio
  • Rear seat reminder
  • Recovery hooks, Red
  • Remote vehicle starter system
  • Seat adjuster, driver 10-way power including lumbar
  • Seat adjuster, passenger 10-way power including lumbar
  • Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
  • Seats, heated second row outboard seats (Requires a Crew Cab model.)
  • Skid plates
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Steering column, lock control, electrical
  • Steering column, manual Tilt-Wheel and telescoping
  • Steering wheel audio controls
  • Steering wheel, heated
  • Steering wheel, leather-wrapped
  • Steering, Electric Power Steering (EPS) assist, rack-and-pinion
  • Suspension, Off-Road with 2" factory installed lift and monotube shocks
  • Tailgate and bed rail protection caps, top
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features
  • Taillamps, LED signature taillight with LED stop and reverse light
  • Teen Driver mode a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
  • Theft-deterrent system, unauthorized entry
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)
  • Trailer brake controller, integrated
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
  • USB ports, dual, charge-only (2nd row)
  • Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
  • Wheelhouse liners, rear
Show more Show less
Options
  • AT4 PREFERRED PACKAGE
  • AT4 PREMIUM PACKAGE
  • AUDIO SYSTEM PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8" DIAGONAL COLOR TOUCH-SCREEN INCLUDES MULTI-TOUCH DISPLAY AM/FM STEREO
  • BOSE SOUND SYSTEM PREMIUM 7-SPEAKER SYSTEM
  • CUSTOMER DIALOGUE NETWORK
  • DRIVER ALERT PACKAGE I
  • EMISSIONS FEDERAL REQUIREMENTS
  • ENGINE 5.3L ECOTEC3 V8
  • FRONT AND REAR PARK ASSIST ULTRASONIC
  • GVWR 7000 LBS. (3175 KG)
  • JET BLACK WITH KALAHARI ACCENTS PERFORATED LEATHER-APPOINTED FRONT SEAT TRIM
  • LANE CHANGE ALERT
  • LPO BLACK TUBULAR ASSIST STEPS 6" RECTANGULAR
  • REAR AXLE 3.23 RATIO
  • REAR CROSS TRAFFIC ALERT
  • SEATS FRONT BUCKET
  • SUNROOF POWER
  • TIRE SPARE 255/80R17SL ALL-SEASON BLACKWALL
  • TIRES 275/60R20SL ALL-TERRAIN BLACKWALL
  • TRANSMISSION 10-SPEED AUTOMATIC ELECTRONICALLY CONTROLLED
  • UNIVERSAL HOME REMOTE
  • WHEELS 20" X 9" (50.8 CM X 22.9 CM) MACHINED ALUMINUM WITH CARBON GREY METALLIC ACCENTS
  • WINDOW POWER REAR SLIDING WITH REAR DEFOGGER
  • WIRELESS CHARGING
Show more Show less

All pricing and details are believed to be accurate, but we do not warrant or guarantee such accuracy. The prices shown above, may vary from region to region, as will incentives, and are subject to change. Vehicle information is based off standard equipment and may vary from vehicle to vehicle. Call or email for complete vehicle specific information.

Inventory

Under $5k

$5,000 - $9,999

$10,000 - $14,999

$15,000 - $19,999

$20,000 - $29,999
$30,000 - $39,999

Over $40k

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Mon:     9:00AM - 7:00PM
Tues:     9:00AM - 7:00PM
Weds:    9:00A
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Fri:         9:00AM - 7:00PM
Sat:       10:00AM - 6:00PM
Sun:      Closed

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Greenwood Automotive
18945 S. Twenty Mile Rd.
Parker, CO 80134
Get Directions
Sales: 
(303) 771-1007

Service:

(303) 805-8070

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