2020 GMC Sierra 1500 SLT Onyx Black EcoTec3 5.3L V8 CARFAX One-Owner. HEATED/COOLED SEATS, COMPLETE DETAIL AND INSPECTION, 20" POLISHED WHEELS, POWER SUNROOF, X31 OFF ROAD PACKAGE, 10-Speed Automatic, 4WD, Dark Walnut/Slate Leather, 2 USB Ports, 2 USB Ports (1st Row), Chrome Wheel To Wheel Assist Steps, Floor-Mounted Center Console, Front Bucket Seats, Heated 2nd Row Outboard Seats, Power Sliding Rear Window w/Rear Defogger, SLT Convenience Package, SLT Premium Package, Universal Home Remote, Ventilated Driver & Front Passenger Seats.
Find out why our dealerships have won DealerRater.com DEALER OF THE YEAR a whopping 10 TIMES! Call, email, or live chat with one of our friendly sales professionals now to schedule your test drive! Prices shown do not include taxes, license, and title fees and a $367.70 documentary service fee.
Used 2020 GMCSierra 1500 SLT
- Exterior Color
- Onyx Black
- Interior Color
- Dark Walnut/Slate
- Odometer
- 88,400 miles
- Fuel Economy
- 16/22 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GTU9DED2LZ376628
- Stock Number
- 29T1933A
GMC
Sierra 1500
Included Packages & Accessories
- 6 Speakers
- AM/FM radio: SiriusXM with 360L
- Premium audio system: GMC Infotainment System
- Radio data system
- Air Conditioning
- Automatic temperature control
- Front dual zone A/C
- Rear window defroster
- Memory seat
- Power driver seat
- Power steering
- Power windows
- Remote keyless entry
- Steering wheel mounted audio controls
- Heavy Duty 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
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Power Sunroof
- Brake assist
- Electronic Stability Control
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Theft Deterrent System (Unauthorized Entry)
- Speed control
- Auto-dimming door mirrors
- Bumpers: chrome
- Front License Plate Kit
- Heated door mirrors
- Power door mirrors
- Rear step bumper
- 2 USB Ports (1st Row)
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Driver door bin
- Driver vanity mirror
- Front reading lights
- Heated steering wheel
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- Heated front seats
- Perforated Leather-Appointed Front Seat Trim
- Power passenger seat
- Split folding rear seat
- Front Center Armrest w/Storage
- Passenger door bin
- 20" x 9" Polished Aluminum Wheels
- Alloy wheels
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
- HEATED/COOLED SEATS
- COMPLETE DETAIL AND INSPECTION
- 20" POLISHED WHEELS
- POWER SUNROOF
- X31 OFF ROAD PACKAGE
- Preferred Equipment Group 4SA
- SLT Convenience Package
- SLT Premium Package
- Trailering Package
- X31 Off-Road Package
- 6-Speaker Audio System Feature
- HD Radio
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- SiriusXM w/360L
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Power Front Passenger Windows w/Express Up/Down
- Power Front Windows w/Driver Express Up/Down
- Power Rear Windows w/Express Down
- Remote Vehicle Starter System
- Universal Home Remote
- Electrical Lock Control Steering Column
- Manual Tilt-Wheel & Telescoping Steering Column
- Off-Road Suspension
- Keyless Open & Start
- Power Door Locks
- Hill Descent Control
- Dual Exhaust w/Premium Tips
- Heavy-Duty Rear Locking Differential
- 170 Amp Alternator
- Auxiliary External Transmission Oil Cooler
- Chrome Grille
- Chrome Wheel To Wheel Assist Steps
- High-Capacity Air Filter
- LED Cargo Area Lighting
- ProGrade Trailering System
- Rear Wheelhouse Liners
- X31 Hard Badge
- 2 USB Ports
- 4G LTE Wi-Fi Hotspot Capable
- Color-Keyed Carpeting Floor Covering
- Compass
- Floor-Mounted Center Console
- GMC Connected Access Capable
- OnStar & GMC Connected Services Capable
- Rear Dual USB Charging-Only Ports
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front 40/20/40 Split-Bench Seat
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Heated Driver & Front Outboard Passenger Seating
- Ventilated Driver & Front Passenger Seats
- Front Frame-Mounted Black Recovery Hooks
- Hitch Guidance
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
- Integrated Trailer Brake Controller
- Wheels: 18" x 8.5" 6-Spoke Machined Aluminum
- Deep-Tinted Glass
- Power Sliding Rear Window w/Rear Defogger
Included Packages & Options
- SLT Premium Package$3,560
- SLT Convenience Package
- Chrome Wheel To Wheel Assist Steps
- SLT Convenience Package$1,460
- Front Bucket Seats
- Floor-Mounted Center Console
- Ventilated Driver & Front Passenger Seats
- Power Sliding Rear Window w/Rear Defogger
- Universal Home Remote
- Heated 2nd Row Outboard Seats
- 2 USB Ports
- X31 Off-Road Package$850
- Off-Road Suspension
- Hill Descent Control
- High-Capacity Air Filter
- X31 Hard Badge
- Dual Exhaust w/Premium Tips
Included Options
- Power Sunroof$995
Detailed Specifications
- 1st and 2nd row curtain head airbags
- 4-wheel ABS Brakes
- ABS and Driveline Traction Control
- Anti-theft alarm system
- Audio System Premium Brand: GMC Infotainment System
- Audio controls on steering wheel
- Automatic front air conditioning
- Auxilliary engine cooler
- Auxilliary transmission cooler
- Bluetooth wireless phone connectivity
- Braking Assist
- Climate Controlled : Driver and passenger heated
- Compass
- Cruise control
- Cruise controls on steering wheel
- Daytime running lights
- Driver seat memory
- Driver's side electrochromatic auto-dimming mirrors
- Dual front air conditioning zones
- Dual illuminated vanity mirrors
- Dual reverse tilt mirrors
- Electrochromatic rearview mirror
- External temperature display
- Fold-up cushion rear seats
- Front Ventilated disc brakes
- Front and rear reading lights
- Front fog/driving lights
- Front split-bench
- Fuel Consumption: City: 16 mpg
- Fuel Consumption: Highway: 22 mpg
- Heated driver mirror
- Heated passenger mirror
- Heated steering wheel
- Leather seat upholstery
- Leather/metal-look steering wheel trim
- Machined aluminum rims w/ painted accents
- Manufacturer's 0-60mph acceleration time (seconds): 6.1 s
- Memorized Settings for 2 drivers
- Memorized Settings including door mirror(s)
- Metal-look dash trim
- Passenger Airbag
- Power remote w/tilt down driver mirror adjustment
- Power remote w/tilt down passenger mirror adjustment
- Power retractable mirrors
- Power windows
- Premium GMC Infotainment System
- Privacy glass: Deep
- Radio Data System
- Rear seats center armrest
- Remote Engine Start : Keyfob remote start
- Remote power door locks
- Side airbag
- Simulated wood/metal-look door trim
- SiriusXM with 360L AM/FM/HD/Satellite
- SiriusXM with 360L Satellite Radio
- Speed-proportional electric power steering
- Split rear bench
- Stability controll with anti-roll
- Suspension class: Regular
- Tachometer
- Tilt and telescopic steering wheel
- Total Number of Speakers: 6
- Trailer hitch
- Trip computer
- Urethane shift knob trim
- Video Monitor Location: Front
- Wheel Diameter: 18
- Wheel Width: 8.5
Dealer Notes
KBB.com Consumer Reviews

Overall4Out of 5
- 3.0
Nice truck
By froggy | on Sunday, December 06, 2020
I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture.… - 5.0
Great Truck
By Mel | on Sunday, April 25, 2021
I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that.… - 5.0
Well done GM
By Tony | on Thursday, November 26, 2020
This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!…
Based on 88 consumer ratings for 2019–2025 models. | Privacy
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*Any MPG listed is based on model year EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid only) and other factors.
Prices shown do not include taxes, license, title fees and a $367.70 documentary service fee. Vehicle listings on this website may not reflect correct vehicle items or accessories as we get data from multiple sources. Always verify or physically inspect the vehicle to make sure the equipment and accessories listed are included.
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