2020 GMC Sierra SLT
GMC Sierra Details
Automatic
6 Cyl, 3.0L
Cardinal Red
4WD
Diesel
58,634 Miles
Jet Black
G26230A
3GTU9DET4LG430695
1500
Leather
SLT
Estimated Payment
$0 / month
About This 2020 GMC Sierra
Vehicle Details
2020 GMC Sierra 1500 SLT 4WD — powerful diesel performance meets refined comfort. Located in McMinnville, OR, this exceptional GMC Sierra features a fuel-efficient 3.0L I6 diesel engine paired with smooth automatic transmission and four-wheel drive for confident handling in changing road conditions. With premium SLT appointments and an off-road package, this truck balances capability and comfort whether you're towing, commuting, or exploring rugged terrain. Inside, automatic climate control and a heated steering wheel keep occupants comfortable year-round, while steering wheel audio controls and Android Auto provide seamless connectivity and hands-free media access on the go. The SLT trim adds upscale touches and practical features that enhance daily usability and long-distance driving comfort. This GMC Sierra 1500 offers strong towing and hauling capability, enhanced traction from 4WD, and the durability of diesel torque for work or recreation. Well-maintained and inspected, it presents an outstanding value — currently priced as the best in the area. Competitive pricing, robust service history, and a comprehensive feature set make this an intelligent choice for buyers seeking capability, efficiency, and modern convenience in a pre-owned pickup. Visit our McMinnville, OR location to test drive this 2020 GMC Sierra 1500 SLT 4WD with the 3.0L diesel and experience its combination of performance, comfort, and value firsthand.
Equipment
It offers Android Auto for seamless smartphone integration. Protect this 1/2 ton pickup from unwanted accidents with a cutting edge backup camera system. This model features steering wheel audio controls. This vehicle keeps you comfortable with Auto Climate. The leather seats in this unit are a must for buyers looking for comfort, durability, and style. Bluetooth technology is built into this GMC Sierra, keeping your hands on the steering wheel and your focus on the road. An off-road package is equipped on this 2020 GMC Sierra 1500. Our dealership has already run the CARFAX report and it is clean. A clean CARFAX is a great asset for resale value in the future. This vehicle is pure luxury with a heated steering wheel. Start the vehicle from inside with remote start. Apple CarPlay: Seamless smartphone integration for this 1/2 ton pickup - stay connected and entertained on the go! This model has a 6 Cyl, 3.0L high output engine.
Packages
SLT Convenience Package: Ventilated Driver and Front Passenger Seats; Heated 2nd Row Outboard Seats; Power Sliding Rear Window with Rear Defogger; 2 USB Ports (1st Row); Floor-Mounted Center Console; Front Bucket Seats; 2 USB Ports; Universal Home Remote. X31 Off-Road Package: 2-Speed Transfer Case; Hill Descent Control; Off-Road Suspension; Dual Exhaust with Premium Tips; Skid Plates; High-Capacity Air Filter; X31 Hard Badge. SLT Premium Package: 20" X 9" Polished Aluminum Wheels; Chrome Wheel to Wheel Assist Steps. Preferred Equipment Group 4SA: LED Cargo Area Lighting; Hitch Guidance; Remote Vehicle Starter System; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Chrome Grille; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Compass; Electrical Lock Control Steering Column; Trailering Package; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Steering Wheel Audio Controls; GMC Connected Access Capable; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; Deep-Tinted Glass; Premium GMC Infotainment System Radio with Multi-Touch; Power Rear Windows with Express Down; HD Radio; Integrated Trailer Brake Controller; Single Speed Transfer Case; Power Front Windows with Driver Express Up/down; Manual Tilt-Wheel and Telescoping Steering Column; Rear Dual USB Charging-Only Ports; Front Frame-Mounted Black Recovery Hooks; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; Heavy-Duty Rear Locking Differential; Power Door Locks. 20" X 9" Polished Aluminum Wheels. Power Sunroof. Chrome Wheel to Wheel Assist Steps. Spray-On Pickup Bed Liner with GMC Logo. 275/60R20SL AT BW Tires. Cardinal Red. Front and Rear Black Molded Splash Guards. **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
Dealer Disclosure: Price excludes taxes, license and title fees, and a Doc fee of $250
2020 GMC Sierra 1500 SLT 4WD — powerful diesel performance meets refined comfort. Located in McMinnville, OR, this exceptional GMC Sierra features a fuel-efficient 3.0L I6 diesel engine paired with smooth automatic transmission and four-wheel drive for confident handling in changing road conditions. With premium SLT appointments and an off-road package, this truck balances capability and comfort whether you're towing, commuting, or exploring rugged terrain. Inside, automatic climate control and a heated steering wheel keep occupants comfortable year-round, while steering wheel audio controls and Android Auto provide seamless connectivity and hands-free media access on the go. The SLT trim adds upscale touches and practical features that enhance daily usability and long-distance driving comfort. This GMC Sierra 1500 offers strong towing and hauling capability, enhanced traction from 4WD, and the durability of diesel torque for work or recreation. Well-maintained and inspected, it presents an outstanding value — currently priced as the best in the area. Competitive pricing, robust service history, and a comprehensive feature set make this an intelligent choice for buyers seeking capability, efficiency, and modern convenience in a pre-owned pickup. Visit our McMinnville, OR location to test drive this 2020 GMC Sierra 1500 SLT 4WD with the 3.0L diesel and experience its combination of performance, comfort, and value firsthand.
Equipment
It offers Android Auto for seamless smartphone integration. Protect this 1/2 ton pickup from unwanted accidents with a cutting edge backup camera system. This model features steering wheel audio controls. This vehicle keeps you comfortable with Auto Climate. The leather seats in this unit are a must for buyers looking for comfort, durability, and style. Bluetooth technology is built into this GMC Sierra, keeping your hands on the steering wheel and your focus on the road. An off-road package is equipped on this 2020 GMC Sierra 1500. Our dealership has already run the CARFAX report and it is clean. A clean CARFAX is a great asset for resale value in the future. This vehicle is pure luxury with a heated steering wheel. Start the vehicle from inside with remote start. Apple CarPlay: Seamless smartphone integration for this 1/2 ton pickup - stay connected and entertained on the go! This model has a 6 Cyl, 3.0L high output engine.
Packages
SLT Convenience Package: Ventilated Driver and Front Passenger Seats; Heated 2nd Row Outboard Seats; Power Sliding Rear Window with Rear Defogger; 2 USB Ports (1st Row); Floor-Mounted Center Console; Front Bucket Seats; 2 USB Ports; Universal Home Remote. X31 Off-Road Package: 2-Speed Transfer Case; Hill Descent Control; Off-Road Suspension; Dual Exhaust with Premium Tips; Skid Plates; High-Capacity Air Filter; X31 Hard Badge. SLT Premium Package: 20" X 9" Polished Aluminum Wheels; Chrome Wheel to Wheel Assist Steps. Preferred Equipment Group 4SA: LED Cargo Area Lighting; Hitch Guidance; Remote Vehicle Starter System; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Chrome Grille; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Compass; Electrical Lock Control Steering Column; Trailering Package; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Steering Wheel Audio Controls; GMC Connected Access Capable; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; Deep-Tinted Glass; Premium GMC Infotainment System Radio with Multi-Touch; Power Rear Windows with Express Down; HD Radio; Integrated Trailer Brake Controller; Single Speed Transfer Case; Power Front Windows with Driver Express Up/down; Manual Tilt-Wheel and Telescoping Steering Column; Rear Dual USB Charging-Only Ports; Front Frame-Mounted Black Recovery Hooks; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; Heavy-Duty Rear Locking Differential; Power Door Locks. 20" X 9" Polished Aluminum Wheels. Power Sunroof. Chrome Wheel to Wheel Assist Steps. Spray-On Pickup Bed Liner with GMC Logo. 275/60R20SL AT BW Tires. Cardinal Red. Front and Rear Black Molded Splash Guards. **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
Dealer Disclosure: Price excludes taxes, license and title fees, and a Doc fee of $250
Features & Options
- SLT Convenience Package: Ventilated Driver and Front Passenger Seats; Heated 2nd Row Outboard Seats; Power Sliding Rear Window with Rear Defogger; 2 USB Ports (1st Row); Floor-Mounted Center Console; Front Bucket Seats; 2 USB Ports; Universal Home Remote
- X31 Off-Road Package: 2-Speed Transfer Case; Hill Descent Control; Off-Road Suspension; Dual Exhaust with Premium Tips; Skid Plates; High-Capacity Air Filter; X31 Hard Badge
- SLT Premium Package: 20" X 9" Polished Aluminum Wheels; Chrome Wheel to Wheel Assist Steps
- Preferred Equipment Group 4SA: LED Cargo Area Lighting; Hitch Guidance; Remote Vehicle Starter System; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Chrome Grille; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Compass; Electrical Lock Control Steering Column; Trailering Package; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Steering Wheel Audio Controls; GMC Connected Access Capable; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; Deep-Tinted Glass; Premium GMC Infotainment System Radio with Multi-Touch; Power Rear Windows with Express Down; HD Radio; Integrated Trailer Brake Controller; Single Speed Transfer Case; Power Front Windows with Driver Express Up/down; Manual Tilt-Wheel and Telescoping Steering Column; Rear Dual USB Charging-Only Ports; Front Frame-Mounted Black Recovery Hooks; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; Heavy-Duty Rear Locking Differential; Power Door Locks
- 20" X 9" Polished Aluminum Wheels
- Power Sunroof
- Chrome Wheel to Wheel Assist Steps
- Spray-On Pickup Bed Liner with GMC Logo
- 275/60R20SL AT BW Tires
- Cardinal Red
- Front and Rear Black Molded Splash Guards
- Apple CarPlay/Android Auto smart device mirroring
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- Hitch View rear mounted camera
- Brake assist system
- Cruise control with steering wheel mounted controls
- Ventilated driver and front passenger seats
- Keyfob remote start
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Primary monitor touchscreen
- 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
- Duramax 3L I-6 diesel direct injection
- DOHC
- variable valve control
- intercooled turbo
- diesel
- engine with 277HP
- Duramax 3L I-6 DOHC
- Teen Driver restricted driving mode/alerts
- Smart key with hands-free access and push button start
- Push-button
- Bluetooth wireless audio streaming
- Hitch Guidance vehicle to trailer hitching assist
- GMC ProGrade Trailering System trailer light test
- GMC ProGrade Trailering System trailer light malfunction warning
- GMC ProGrade Trailering System trailer theft alarm
- Dual-zone front climate control
- Immobilizer
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer Sway Control (TSC) trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Premium GMC Infotainment System external memory control
- Pandora internet radio capability
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill Start Assist (HSA)
- Automatic climate control
- Rear seat check warning
- 1 exterior 120V AC power outlet
- LED daytime running lights
- LED brake lights
- LED front fog lights
- Leather and metal-look steering wheel
- EZ Lift
- EZ Lower
- Integrated tailgate step
- Trailer hitch light
- Manual rear child safety door locks
- Heated driver and passenger side door mirrors
- Power driver and passenger door mirrors with tilt down in reverse
- 6-Cyl; Turbo Diesel; 3.0 Liter
- Automatic; 10-Spd w/Overdrive
- 4WD
- Off-Road Pkg
- Convenience Pkg
- Premium Pkg
- Hill Descent Control
- Hill Start Assist Control
- Traction Control
- StabiliTrak
- ABS (4-Wheel)
- Theft Deterrent System
- Keyless Entry
- Keyless Start
- Air Conditioning
- Power Sliding Rear Window
- Power Windows
- Power Door Locks
- Cruise Control
- Power Tailgate Release
- Power Steering
- Tilt & Telescoping Wheel
- AM/FM/HD Radio
- SiriusXM Satellite
- Bluetooth Wireless
- OnStar
- Premium GMC Infotainment System
- Backup Camera
- Dual Air Bags
- Side Air Bags
- F&R Head Curtain Air Bags
- Heated Seats
- Ventilated Seats
- Dual Power Seats
- Leather
- Power Sun Roof
- HID Headlamps
- Daytime Running Lights
- LED Headlamps
- Fog Lights
- Running Boards
- Pickup Shell
- Bed Liner
- Towing Pkg
- Oversized Premium Wheels 20"+
- -
2020 GMC Sierra 2500HD AT4 Review
Driven by cheaper fuel prices and a resurgent appetite for all things large, the truck segment is in the midst of a renaissance like never before: they’re bigger, smarter, more capable and increasingly luxurious with jaw dropping price tags. And this one is a real monster – the all-new GMC Sierra Heavy Duty.I’ve driven some big trucks this year including Ram’s new 3500 dually Mega Cab but this one feels even more gargantuan. It’s the Sierra 2500 Heavy Duty; taller and longer than its predecessor and now available in AT4 livery for a little more off-road worthiness. You’ll need the various sidesteps, bumper steps and grab handles for this one because it’s just that large. But that’s what you would expect from a next generation heavy duty; every adjective in the dictionary meaning MORE.
GMC says that trailering is the most important consideration for Sierra Heavy Duty customers – this one can tow 18,500 pound, by the way, you can check the specifics for your configuration right on the door jamb – so they’ve poured a boatload of resources into cameras, apps and a multitude of other features to make pulling stuff as safe and as stress-free as possible.
With 15 camera views including surround vision and a bed view, a rearview camera mirror, and an optional transparent trailer view camera that my tester doesn’t have and requires additional installation, every inch of this truck is covered by more eyeballs. Furthermore, there are larger, power extendable trailering mirrors with power retract, the all-new Park Grade Hold Assist that keeps the wheels braked for an extended period of time, a diesel exhaust brake and an in-vehicle trailering app that can retain various trailer profiles and perform safety tests with that same information available through the myGMC mobile app. And depending upon your trailer, the app can turn on the trailer’s air conditioning or water heater, check water and holding tank levels, or monitor fuel levels for the generator — all while you’re still driving. It does not have, however, Ford’s super easy Pro Trailer Backup Assist that does the steering for you but otherwise the breadth of trailering features here is off the charts impressive. The bed lift-in height is also lower than before for easier 5th wheel and gooseneck hitching. The bigger frame allows for up to 35,500 pounds when configured as a 3500HD, regular cab, 2WD dually diesel. Speaking of which…
So which do you choose: The new 6.6-liter gas V8 or, or for a mere $10,000 more, this carryover 6.6L Duramax diesel? Rated at 445 horsepower and 910 pound-feet of torque it feels more alive than the new 1000 pound-foot Cummins I recently tested in the Ram. And GMC says it now performs more efficiently thanks to this enormous grille and the hood scoop, allowing for increased cooling. I’ve averaged 15mpg.
(Driving stand-up)
The AT4 part of this equation starts with off-road tuned Rancho shocks, skid plates and a locking rear differential. Riding on optional 20” wheels fitted with new Goodyear Trailrunner tires, the AT4 also packs a specific Off-Road driving mode, Hill Descent Control and Hill Start Assist, a heads-up display, off-road gauges, and low speed surround vision camera. It also possesses a bolder appearance and red recovery hooks. Furthermore the cabin receives AT4 specific upgrades such as these color accents and all-weather floor liners. And despite its size it’s an easy going drive with surprisingly precise recirculating ball steering and a new 10-speed transmission that is smooth, reactive and beautifully matched with the diesel. The torsion bar front suspension is an interesting choice but the ride is super smooth UNTIL something upsets the body and then it’s jounce for days.
(Interior stand-up)
Space is not an issue…the rear seats are bigger than some apartments. There are also clever cubbies and the seats fold up when not needed. And my heavily optioned tester is loaded with luxury goodies and safety tech that gives it a high-end resume yet it all just looks a bit dated and uninspired when the competition is going all-in on such matters. I love the convenient location of the wireless charge pad, huge center console, and new higher seating position that places you nearly eye-to-eye with the big rig drivers. But this touchscreen is too small now and there’s no adaptive cruise control on 2500 models even though it looks like it exists. The safety features are otherwise high with auto high beams, the vibrating safety alert seat, lane departure warning and automatic emergency braking.
The next frontier in the pickup truck wars seems to be focused on the tailgate where cleverness has finally arrived. This one has 6 configurations to fit a variety of needs – it’s so smart you wonder why this hasn’t happened before.
Remember those old Chevy TV spots with Howie Long taking shots at Ford for their “old guy” tailgate step? Well, it looks like GM has come to the other side and then some. Called the MultiPro tailgate and introduced on the Sierra 1500, it now moves up to the big boys with various ways to make your job easier.
The price of this truck starts at $57,700 and with options checks in at a healthy $77,155 so Professional Grade doesn’t come cheaply. But this is no doubt a very impressive ¾ ton pickup with off-road chops, huge presence and the trailering tech to match.