
Used 2026 GMCSierra 1500 AT4 Truck I-6 cyl
- Diesel
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black
- Odometer
- 6,218 miles
- Body/Seating
- Truck/5 seats
- Seats
- 5 seats
- Fuel Economy
- 22/26 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- I-6 cyl
- VIN
- 3GTUUEE87TG278217
- Stock Number
- KV1274
GMC
Sierra 1500
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
- Front dual zone A/C
Included Packages & Accessories
- Navigation System
- 7 Speakers
- AM/FM radio: SiriusXM with 360L
- 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
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Emergency communication system: OnStar
- Front anti-roll bar
- Front wheel independent suspension
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Brake assist
- Electronic Stability Control
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Theft Deterrent System (unauthorized Entry)
- Speed control
- Block heater
- Engine Block Heater
- Auto-dimming door mirrors
- Bumpers: body-color
- Front and Rear Black Molded Splash Guards
- Front License Plate Kit
- Heated door mirrors
- IntelliBeam Automatic High Beam on/Off
- Power door mirrors
- Rear step bumper
- All-Weather Floor Liners with AT4 Logo
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Buckle to Drive
- Compass
- Driver door bin
- Driver vanity mirror
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- Front reading lights
- Heated steering wheel
- Illuminated entry
- Lane Keep Assist with Lane Departure Warning
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Rear seat center armrest
- Safety Alert Seat
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- Front Center Armrest
- Heated front seats
- Heated rear seats
- Perforated Front Leather Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated front seats
- Passenger door bin
- Alloy wheels
- Rain sensing wipers
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
- AT4 Preferred Package
- Preferred Equipment Group 4SB
- Trailering Package
- Premium Bose 7-Speaker Sound System
- Radio: Premium GMC Infotainment Audio System
- SiriusXM with 360L Trial Subscription
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Interior Power Outlet
- Driver Memory
- Power Front Passenger Windows with Express Up/Down
- Power Front Windows with Driver Express Up/Down
- Power Rear Windows with Express Down
- Push Button Start
- Remote Vehicle Starter System
- Universal Home Remote
- Auto-Locking Rear Differential
- Off-Road Suspension
- Power Rake and Telescoping Steering Column
- Keyless Open and Start
- Power Door Locks
- Hill Descent Control
- Perimeter Lighting
- 220 Amp Alternator
- Heavy-Duty Air Filter
- Black Chrome Grille Insert Bars
- LED Cargo Area Lighting
- Rear Wheelhouse Liners
- Spray-on Pickup Bedliner with GMC Logo
- 2 Charge/Data USB Ports Inside Center Console
- 2 Type-C Charge-Only Rear USB Ports
- 2 USB Ports
- Color-Keyed Carpeting Floor Covering
- Floor-Mounted Center Console
- Front Premium Floor Liners with Removable Carpet Insert
- HD Surround Vision
- OnStar Services Capable
- Rear Cross Traffic Braking
- Rear Pedestrian Detection
- Rear Premium Floor Liners with Removable Carpet Insert
- Trailer Camera Provisions
- Trailer Side Blind Zone Alert
- Ultrasonic Front and Rear Park Assist
- Wi-Fi Hotspot Capable
- Wireless Apple CarPlay/Wireless Android Auto
- Wireless Charging
- 10-Way Power Driver Seat Adjuster with Lumbar
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Heated Driver and Front Outboard Passenger Seating
- Ventilated Driver and Front Passenger Seats
- Hitch Guidance
- Hitch View
- in-Vehicle Trailering System App
- Integrated Trailer Brake Controller
- Red Recovery Hooks
- Wheels: 20" x 9" Machined Aluminum
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
- Power Sliding Rear Window with Rear Defogger
Included Packages & Options
- AT4 Preferred Package$350
- Universal Home Remote
- Power Sliding Rear Window with Rear Defogger
Included Options
- Front and Rear Black Molded Splash Guards$325
- All-Weather Floor Liners with AT4 Logo$295
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
- Emergency communication system: OnStar
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Navigation system
- 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
- Remote keyless entry
- Speed control
- Surround View Monitor: HD Surround Vision w/Hitch View yes
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- Primary LCD size: 13.4"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless Phone Charger: front
- 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
- Block heater
- Drive type: four-wheel
- Electric motor 1 torque: none
- Electric motor horsepower: none
- Engine location: front
- Fuel economy city: 22mpg
- Fuel economy combined: 24mpg
- Fuel economy highway: 26mpg
- Fuel tank capacity: 24.0gal.
- Hybrid electric powertrain type: none
- Hybrid system combined power torque: none
- Hybrid system net power: none
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable intake manifold
- Variable valve control
- Approach angle: 26 deg
- Departure angle: 23 deg
- Ground clearance (min): 282mm (11.1")
- Ramp breakover angle: 21 deg
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Tailpipe finisher: chrome
- Trailer hitch
- Trailer sway control
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,990mm (78.3")
- Exterior length: 5,916mm (232.9")
- Front hiproom: 1,544mm (60.8")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,638mm (64.5")
- Greenhouse Gas Score (GG): 4
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,505mm (59.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,626mm (64.0")
- Turning radius: 7.2m (23.7')
- Wheelbase: 3,747mm (147.5")
- Appearance: digital/analog
- Auto high-beam headlights
- Blind spot: Trailer Side Blind Zone Alert warning
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: Front and Rear Park Assist front and rear
- Rain sensing wipers
- 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
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross Traffic Braking mitigation
- Security system
- Traction control
Standard Features
- Universal Home Remote
- Power Sliding Rear Window with Rear Defogger
- Rear Cross Traffic Braking
- Rear Pedestrian Detection
- Premium Bose 7-Speaker Sound System
- SiriusXM with 360L Trial Subscription
- Floor-Mounted Center Console
- Electric Rear-Window Defogger
- Power Door Locks
- Push Button Start
- Remote Vehicle Starter System
- Keyless Open and Start
- Color-Keyed Carpeting Floor Covering
- Front Premium Floor Liners with Removable Carpet Insert
- OnStar Services Capable
- Wi-Fi Hotspot Capable
- 120-Volt Interior Power Outlet
- 2 Type-C Charge-Only Rear USB Ports
- 2 USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- HD Surround Vision
- Trailer Side Blind Zone Alert
- Trailer Camera Provisions
- Heated Driver and Front Outboard Passenger Seating
- Ventilated Driver and Front Passenger Seats
- Heated 2nd Row Outboard Seats
- Steering Wheel Audio Controls
- Power Rake and Telescoping Steering Column
- Power Front Windows with Driver Express Up/Down
- Power Front Passenger Windows with Express Up/Down
- Power Rear Windows with Express Down
- Wireless Charging
- Spray-on Pickup Bedliner with GMC Logo
- Deep-Tinted Glass
- Black Chrome Grille Insert Bars
- LED Cargo Area Lighting
- Perimeter Lighting
- Ultrasonic Front and Rear Park Assist
- Red Recovery Hooks
- Wheels: 20" x 9" Machined Aluminum
- Rear Wheelhouse Liners
- Front Rain-Sensing Wipers
- Trailering Package
- Hitch View
- in-Vehicle Trailering System App
- 220 Amp Alternator
- Heavy-Duty Air Filter
- Auto-Locking Rear Differential
- Hill Descent Control
- Off-Road Suspension
- Integrated Trailer Brake Controller
- 10-Way Power Driver Seat Adjuster with Lumbar
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Driver Memory
- Premium Bose 7-Speaker Sound System
- Wireless Apple CarPlay/Wireless Android Auto
- Rear Premium Floor Liners with Removable Carpet Insert
- 120-Volt Bed Mounted Power Outlet
- Hitch Guidance
Dealer Notes
CARFAX One-Owner. Clean CARFAX. Onyx Black 2026 GMC Sierra 1500 AT4 4WD 10-Speed Automatic 3.0L I6 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.
When buying any New or Pre-Owned vehicle at Sunbury Motors (excluding diesel engines), the first service is on us! Your salesperson will provide you with a coupon to present for your first oil change visit. Please ask your salesperson for details! Odometer is 4298 miles below market average! 22/26 City/Highway MPG
When buying any New or Pre-Owned vehicle at Sunbury Motors (excluding diesel engines), the first service is on us! Your salesperson will provide you with a coupon to present for your first oil change visit. Please ask your salesperson for details! Odometer is 4298 miles below market average! 22/26 City/Highway MPG
KBB.com Consumer Reviews

Overall4.0Out of 5
- 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.…
All reviews on KBB.com
Based on 71 consumer ratings for 2019–2026 models. | Privacy
- CarFax Price
- $64,725
- - Market Adjustment
- -$5,725
- Doc Fee
- $490
- Lowest Price Promise
- $59,490
- We're here to help: 570-495-4812
- We're here to help: 570-495-4812




