Used 2020 GMCSierra 1500 SLT Truck Crew Cab
- Exterior Color
- Quicksilver
- Interior Color
- Jet Black
- Fuel Economy
- 16/22 MPG City/Hwy
- Transmission
- 10 speed automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 3GTU9DED0LG120309
- Stock Number
- TLG120309
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Perimeter/approach lights
- Remote keyless entry
- Heated steering wheel
Included Packages & Accessories
- 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
- 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
- SLT Preferred Package: Premium Bose 7-Speaker Sound System; Wireless Charging; Premium GMC Infotainment System Radio with Navigation
- SLT Premium Plus Package: 20 X 9 Polished Aluminum Wheels; Chrome Wheel to Wheel Assist Steps; Spray-On Pickup Bed Liner with GMC Logo
- Preferred Equipment Group 4SA: LED Cargo Area Lighting; Hitch Guidance; Remote Vehicle Starter System; Electric Rear-Window Defogger; 5.3L EcoTec3 V8 Engine; 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; 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
- Quicksilver Metallic
- 275/60R20SL AT BW Tires
- Apple CarPlay/Android Auto smart device mirroring
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- Hitch View rear mounted camera
- Lane Keep Assist with Lane Departure Warning
- Adaptive cruise control
- Brake assist system
- Cruise control with steering wheel mounted controls
- Ventilated driver and front passenger seats
- Integrated navigation system
- Keyfob remote engine 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-time 4WD
- EcoTec3 5.3L V-8 gasoline direct injection
- variable valve control
- regular unleaded
- engine with cylinder deactivation and 355HP
- Front wireless smart device charging
- Teen Driver restricted driving mode
- Smart key with hands-free access and push button start
- Bluetooth wireless audio streaming
- Hitch Guidance vehicle to trailer hitching assist
- Lane Change Alert with Side Blind Zone Alert blind spot warning
- Following Distance Indicator
- 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
- IntelliBeam auto high-beam headlights
- Immobilizer
- Bose speakers
- 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 Start Assist (HSA)
- Automatic climate control
- Rear seat check warning
- UltraSonic front and rear parking sensors
- LED daytime running lights
- LED brake lights
- LED front fog lights
Included Packages & Options
- Power Sunroof$995
Standard Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Cylinder deactivation
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 19mpg
- Fuel economy fuel type: gasoline
- Fuel economy highway: 22mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 205mm (8.1")
- Auto-dimming door mirrors
- Bumpers: chrome
- Door mirrors: chrome
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch receiver
- Trailer sway control
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,918mm (75.5")
- Exterior length: 5,885mm (231.7")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,655mm (65.2")
- Wheelbase: 3,744mm (147.4")
- Appearance: analog
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Dealer Notes
This vehicle features steering wheel audio controls. This vehicle's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. This 1/2 ton pickup features a high end BOSE stereo system. This GMC Sierra offers Apple CarPlay for seamless connectivity. You'll never again be lost in a crowded city or a country region with the navigation system on it. The state of the art park assist system will guide you easily into any spot. This GMC Sierra stays safely in its lane with Lane Keep Assist. This vehicle is pure luxury with a heated steering wheel. This model's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. The leather seats in it are a must for buyers looking for comfort, durability, and style. This unit keeps you comfortable with Auto Climate. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. Bluetooth technology is built into this vehicle, keeping your hands on the steering wheel and your focus on the road.
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. 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. SLT Preferred Package: Premium Bose 7-Speaker Sound System; Wireless Charging; Premium GMC Infotainment System Radio with Navigation. SLT Premium Plus Package: 20 X 9 Polished Aluminum Wheels; Chrome Wheel to Wheel Assist Steps; Spray-On Pickup Bed Liner with GMC Logo. Preferred Equipment Group 4SA: LED Cargo Area Lighting; Hitch Guidance; Remote Vehicle Starter System; Electric Rear-Window Defogger; 5.3L EcoTec3 V8 Engine; 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; 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. Quicksilver Metallic. 275/60R20SL AT BW Tires. **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
**Vehicle Options listed are when the unit was originally built. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.
KBB.com Consumer Reviews

- 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!…
Price excludes tax, title, license fees and other governmental fees, and $549 dealer documentation service fee.
We have taken reasonable efforts to ensure display of accurate data; however, the information shown may contain errors and omissions, may not reflect all vehicle items and accessories, and errors with regard to pricing may occur. All displayed inventory is subject to prior sale and all prices expire at midnight on the date displayed. Price shown is for the state in which Dealer is physically located and if transferred to another state, the price may change. Dealer is not responsible for any errors but should be consulted in person to confirm the information on this page.
- Price
- $36,748
- Save
- -$1,750
- DSM Price
- $34,998
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