SUMMIT WHITE exterior and JET BLACK WITH KALAHARI ACCENTS interior, AT4 trim.
A GREAT VALUE
Reduced from $37,123. This Sierra 1500 is priced $6,000 below J.D. Power Retail.
BUY FROM AN AWARD WINNING DEALER
COME SEE BIG JOHN- Were Closer Than You Think and Worth the Drive!
Advertised price includes all dealer fees, including the dealer documentation fee and electronic filing fee. Prices are valid through the end of the current business day and may change without notice based on manufacturer incentive programs, market conditions and vehicle availability. Prices reflect rebates and incentives available to all purchasers; some customers may qualify for additional manufacturer incentives based on eligibility. Incentives are based on the dealers location and may vary for out-of-state buyers. Prices exclude sales tax, tag, title, registration and other government fees. Out-of-state buyers are responsible for all taxes and government, title and registration fees in the state where the vehicle will be registered. Optional dealer-installed equipment sold separately. Vehicle images may not represent the actual vehicle in stock; color, trim, options and equipment may vary. Vehicles may be in transit and are subject to prior sale. Please confirm availability and specifications with dealer. Dealer is not responsible for errors or omissions. Dealer sets final price.
Used 2020 GMCSierra 1500 AT4
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Odometer
- 94,000 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Seats
- 5 seats
- Fuel Economy
- 15/19 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 3GTP9EEL0LG255199
- Stock Number
- N0351A
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Power moonroof
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
Included Packages & Accessories
- 3.23 Rear Axle Ratio
- Wheels: 20" x 9" Machined Aluminum
- Front License Plate Kit
- Transmission: 10-Speed Automatic
- GVWR: 7,000 lbs
- Trailer Tire Pressure Monitor System
- Power Sunroof
- Black Off-Road Accessory Assist Step
- Wheel Locks
- Rear Camera Mirror
- Premium Bose 7-Speaker Sound System
- Wireless Charging
- IntelliBeam Automatic High Beam On/Off
- Front Pedestrian Braking
- Following Distance Indicator
- 8" Driver Information Center
- Technology Package
- HD Surround Vision w/2 Trailer View Camera Provisions
- Bed View Camera
- Multicolor 15" Diagonal Head-Up Display
- High Gloss Black Mirror Caps
- Lane Keep Assist w/Lane Departure Warning
- Adaptive Cruise Control - Camera
- Safety Alert Seat
- AT4 Preferred Package
- Universal Home Remote
- Power Sliding Rear Window w/Rear Defogger
- Radio: Premium GMC Infotainment Sys w/Navigation
- SiriusXM w/360L
- 255/80R17SL AS BW Spare Tire
- Tires: 275/60R20SL AT BW
- Ultrasonic Front & Rear Park Assist
- Driver Alert Package I
- Lane Change Alert w/Side Blind Zone Alert
- Rear Cross Traffic Alert
- Perimeter Lighting
- Engine: 6.2L EcoTec3 V8
- 2-Speed Transfer Case
- Front Bucket Seats
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Driver Memory
- Preferred Equipment Group 4SB
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- 6-Speaker Audio System Feature
- HD Radio
- Floor-Mounted Center Console
- Compass
- 4.2" Diagonal Color Display Driver Info Center
- Electric Rear-Window Defogger
- Power Door Locks
- Remote Vehicle Starter System
- Keyless Open & Start
- Color-Keyed Carpeting Floor Covering
- All-Weather Floor Liners w/AT4 Logo
- OnStar & GMC Connected Services Capable
- 4G LTE Wi-Fi Hotspot Capable
- GMC Connected Access Capable
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Instrument Panel Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 2 USB Ports
- Rear Dual USB Charging-Only Ports
- HD Rear Vision Camera
- Heated Driver & Front Outboard Passenger Seating
- Ventilated Driver & Front Passenger Seats
- Heated 2nd Row Outboard Seats
- Steering Wheel Audio Controls
- Manual Tilt-Wheel & Telescoping Steering Column
- Electrical Lock Control Steering Column
- Theft Deterrent System
- Power Front Windows w/Driver Express Up/Down
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
- Spray-On Pickup Bed Liner w/AT4 Logo
- Deep-Tinted Glass
- Body-Color Surround Grille
- LED Cargo Area Lighting
- Red Recovery Hooks
- Tires: 265/65R18SL AT BW
- Wheels: 18" x 8.5" Machined Aluminum
- Rear Wheelhouse Liners
- Trailering Package
- ProGrade Trailering System
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
- 170 Amp Alternator
- High-Capacity Air Filter
- Auxiliary External Transmission Oil Cooler
- Heavy-Duty Rear Locking Differential
- Engine: 5.3L EcoTec3 V8
- Hill Descent Control
- Skid Plates
- Off-Road Suspension
- Hitch Guidance
- Integrated Trailer Brake Controller
- Driver Alert Package II
- Forward Collision Alert
- Automatic Emergency Braking
- AT4 Premium Package
- Tires: LT275/65R18C MT BW
- 6" Rectangular Black Tubular Assist Steps
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Sunroof sunshade: manual
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front tires: 275/60SR20.0
- Front wheel independent suspension
- Power steering
- Rear tires: 275/60SR20.0
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 20"
- 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
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- 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
- Ventilated front seats
- Cylinder deactivation
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 15mpg
- Fuel economy combined: 18mpg
- Fuel economy fuel type: gasoline
- Fuel economy highway: 19mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Recommended fuel: Premium Unleaded
- Torque: 460 lb.-ft. @ 4,100RPM
- Variable valve control
- Ground clearance (min): 276mm (10.9")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch receiver
- Trailer sway control
- Engine displacement: 6.2 L
- Engine torque: 460 lb.-ft. @ 4,100RPM
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,990mm (78.3")
- 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")
- Towing capacity: 3,992kg (8,800lbs)
- Turning radius: 7.1m (23.5')
- Wheelbase: 3,744mm (147.4")
- Appearance: analog
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear: HD Surround Vision yes
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Heads up display
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: UltraSonic front and rear
- 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
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Pedestrian detection: prevention
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Security system
- Traction control
Standard Features
- AT4 Preferred Package
- Tires: LT275/65R18C MT BW
- Driver Alert Package I
- 6" Rectangular Black Tubular Assist Steps
- 2-Speed Transfer Case
- HD Surround Vision w/2 Trailer View Camera Provisions
- Rear Camera Mirror
- Bed View Camera
- Multicolor 15" Diagonal Head-Up Display
- 8" Driver Information Center
- High Gloss Black Mirror Caps
- Universal Home Remote
- Power Sliding Rear Window w/Rear Defogger
- Radio: Premium GMC Infotainment Sys w/Navigation
- Premium Bose 7-Speaker Sound System
- Wireless Charging
- Forward Collision Alert
- Lane Keep Assist w/Lane Departure Warning
- Automatic Emergency Braking
- Front Pedestrian Braking
- IntelliBeam Automatic High Beam On/Off
- Adaptive Cruise Control - Camera
- Following Distance Indicator
- Safety Alert Seat
- Ultrasonic Front & Rear Park Assist
- Lane Change Alert w/Side Blind Zone Alert
- Rear Cross Traffic Alert
- Perimeter Lighting
- 255/80R17SL AS BW Spare Tire
- SiriusXM w/360L
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Driver Memory
- 120-Volt Bed Mounted Power Outlet
- 6-Speaker Audio System Feature
- SiriusXM w/360L
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- HD Radio
- Floor-Mounted Center Console
- Compass
- 4.2" Diagonal Color Display Driver Info Center
- Electric Rear-Window Defogger
- Power Door Locks
- Remote Vehicle Starter System
- Keyless Open & Start
- Color-Keyed Carpeting Floor Covering
- All-Weather Floor Liners w/AT4 Logo
- OnStar & GMC Connected Services Capable
- 4G LTE Wi-Fi Hotspot Capable
- GMC Connected Access Capable
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Instrument Panel Power Outlet
- 2 USB Ports
- Rear Dual USB Charging-Only Ports
- HD Rear Vision Camera
- Heated Driver & Front Outboard Passenger Seating
- Ventilated Driver & Front Passenger Seats
- Heated 2nd Row Outboard Seats
- Steering Wheel Audio Controls
- Manual Tilt-Wheel & Telescoping Steering Column
- Electrical Lock Control Steering Column
- Theft Deterrent System
- Power Front Windows w/Driver Express Up/Down
- Power Front Passenger Windows w/Express Up/Down
- Power Rear Windows w/Express Down
- Spray-On Pickup Bed Liner w/AT4 Logo
- Deep-Tinted Glass
- Body-Color Surround Grille
- LED Cargo Area Lighting
- Red Recovery Hooks
- Tires: 265/65R18SL AT BW
- Wheels: 18" x 8.5" Machined Aluminum
- Rear Wheelhouse Liners
- Trailering Package
- ProGrade Trailering System
- 170 Amp Alternator
- High-Capacity Air Filter
- Auxiliary External Transmission Oil Cooler
- Heavy-Duty Rear Locking Differential
- Engine: 5.3L EcoTec3 V8
- Hill Descent Control
- Skid Plates
- Off-Road Suspension
- Hitch Guidance
- Integrated Trailer Brake Controller
- 2-Speed Transfer Case
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
Dealer Notes
KBB.com Consumer Reviews
- 4.0
Depreciation of 50%
By Manny A on 10/28/2026 10:06:36 AM
This is a amazing truck.. Comfortable lots of sensors Etc…. My truck has 30000 miles I when to trade in they offer $46000 I paid $86000 the depreciation is incredible I don’t buy new truck never again. - 5.0
2021 GMC SLT 4WD SIERRA, Great Truck
By Ransom1 on 10/15/2026 4:18:42 PM
This is my 8th truck. This is hands down the very best truck I’ve ever owned. Not only is it the best looking truck on the road I have never had it in the shop except for oil changes and scheduled maintenance. The silver does not show dirt or grime. - 5.0
Great 4 cylinder truck
By Steve on 9/23/2026 2:01:15 AM
I have only pulled a trailer one time and still got 18 mpg down doing 80 down the interstate. Otherwise this vehicle is used for commuting or recreating. I typically get 22-24 mpg driving MT highways to the mountains. The turbo has some spunk for getting up to speed and the five years I've had my truck no complaints.