2026 GMC Sierra 1500 4WD Crew Cab 147 AT4 â" Technology Package, AT4 Premium Package, Preferred Equipment Group 4SB, AT4 Preferred Package, Black Badging Package; Duramax 3L I-6 direct injection intercooled turbo diesel with DOHC, variable valve control and a 10-speed automatic 305 HP. Built to blend off-road capability with diesel efficiency, this AT4 delivers confident towing, composed highway manners, and a premium set of technologies for daily driving and work duty alike.
Technology Package: Adds a suite of driver-focused tech that elevates convenience and situational awareness for longer drives and busy work days, helping you stay connected and in control.
AT4 Premium Package: Enhances comfort and refinement with select upgrades that make time behind the wheel more pleasant on and off the pavement.
Preferred Equipment Group 4SB: Brings desirable convenience and entertainment options together so you enjoy a better in-cab experience without compromising capability.
AT4 Preferred Package: Tailors the truck for everyday usability with features that simplify errands and storage while keeping the cabin comfortable in all conditions.
Black Badging Package: Gives the Sierra a bolder, monochromatic appearance that emphasizes the truckâs rugged personality and modern styling.
Wireless Apple CarPlay and Android Auto integration lets you mirror maps, music, and messages without cords, keeping your cabin tidy and your apps within easy reach.
Forward collision mitigation continuously watches traffic ahead and can intervene to reduce the likelihood or severity of a frontal impact, giving added peace of mind on busy roads.
Front pedestrian impact prevention enhances urban safety by monitoring and reacting to people in the vehicleâs path, helping to avoid or soften collisions with vulnerable road users.
An onboard mobile hotspot keeps passengers online on the go, so work, streaming, or navigation stays connected without draining your phoneâs data.
The rear camera delivers clearer views when backing up or hitching, turning tight maneuvers into straightforward, safer tasks.
Lane departure prevention helps you maintain lane position by gently correcting unintended drift, reducing the chance of side-swipe incidents during long trips.
Rear collision mitigation monitors traffic behind the truck and can respond to looming impacts, adding another layer of protection for occupants and cargo.
Adaptive cruise control with traffic stop-go handles following distance and stop-and-go traffic automatically, making highway commutes and road trips far less fatiguing.
The head-up display projects essential info into your line of sight so you can keep your eyes on the road while monitoring speed and navigation prompts.
The 2026 GMC Sierra 1500 AT4 pairs diesel torque with thoughtful technology and pro
2026 GMC Sierra 1500 AT4 Truck I6
- Used
- Diesel
The overview
- Exterior Color
- Sterling Metallic
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 4,660 miles
- Body/Seating
- Truck/5 seats
- Seats
- 5 seats
- Fuel Economy
- 22/26 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- 3.0L I6
- VIN
- 1GTUUEE8XTZ304227
- Stock Number
- 18615
The highlights
- 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
The full 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
Notes from the dealer
Peace of mind
Optional add-on protection
- GAP Protection
- Lifetime Powertrain
- Tires and Wheels
- Paint Protection
A name you can trust
Phil Long Lincoln - Colorado Springs is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
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