Discover the capability and refinement of the 2026 GMC Sierra 1500 AT4 In-Transit, a truck engineered to handle demanding terrain while delivering the comfort and technology you demand from a modern pickup.
- AT4 Preferred Package
- AT4 Premium Package
- Technology Package
- Trailering Package
- 3.0L I6 engine with 10-speed automatic transmission and 4WD
- Multicolor 15" diagonal head-up display
- Navigation system with wireless Apple CarPlay and Android Auto
- Premium Bose 7-speaker sound system with SiriusXM 360L
- Power sunroof
- Bed view camera and rear camera mirror
- Hitch guidance with integrated trailer brake controller
- Off-road high clearance step
- 20" machined aluminum wheels
- Power sliding rear window with rear defogger
- Spray-on pickup bedliner with GMC logo
Built for both work and weekend adventures, this Sierra 1500 AT4 combines genuine off-road capability with daily usability. The 3.0L I6 engine paired with a 10-speed automatic delivers responsive power, while 4WD with off-road suspension and hill descent control ensures confident performance on challenging surfaces. With an EPA estimate of 21 city and 24 highway MPG, you gain efficiency without sacrificing capability.
The AT4 Preferred and Premium packages establish this truck as distinctly equipped for adventurers. The off-road high clearance step provides practical access, while the spray-on bedliner protects your cargo area from the elements and daily wear. Red recovery hooks and a 3.23 rear axle ratio underscore the truck's ability to tackle demanding tasks.
Technology seamlessly integrates into your driving experience. The 15-inch multicolor head-up display keeps critical information visible without distraction. Navigation, wireless Apple CarPlay and Android Auto, and the premium GMC infotainment audio system keep you connected. The bed view camera and rear camera mirror enhance situational awareness, while hitch guidance takes the guesswork out of trailer hookups.
Comfort extends throughout the cabin with heated and ventilated front seats, a heated steering wheel, and heated rear seats. The 10-way power driver seat with lumbar adjustment ensures personalized support on extended drives. Perforated front leather seat trim combines durability with luxury, while the power sunroof adds openness to your driving environment.
Safety features work behind the scenes to protect you and your passengers. Automatic emergency braking, lane keep assist with lane departure warning, rear cross traffic braking, and forward pedestrian braking provide comprehensive protection. The universal home remote adds convenience for home and garage access.
This 2026 GMC Sierra 1500 AT4 In-Transit represents a substantial investment in capability, comfort, and confidence. We invite you to visit us to experience its commanding presence and refined engineering firsthand. Not all customers may qualify for all rebates listed, see dealer for details. Price includes: $1500 - Buick & GMC Consumer Cash Program. Exp. 09/30/2026 $500 - GMC Bonus Cash. Exp. 09/30/2026
Used 2026 GMCSierra 1500 AT4
- Diesel
- Exterior Color
- Coastal Dune
- Interior Color
- Jet Black
- Odometer
- 4 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
- 1GTUUEE81TZ446790
- Stock Number
- TZ446790
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
- AT4 Preferred Package
- AT4 Premium Package
- Technology Package
- Trailering Package
- 7 Speakers
- AM/FM radio: SiriusXM with 360L
- Premium Bose 7-Speaker Sound System
- Radio data system
- Radio: Premium GMC Infotainment Audio System
- SiriusXM with 360L Trial Subscription
- Steering Wheel Audio Controls
- Air Conditioning
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Interior Power Outlet
- Driver Memory
- Memory seat
- Power driver seat
- Power Front Passenger Windows with Express Up/Down
- Power Front Windows with Driver Express Up/Down
- Power Rear Windows with Express Down
- Power steering
- Power windows
- Push Button Start
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Universal Home Remote
- Auto-Locking Rear Differential
- Off-Road Suspension
- Power Rake and Telescoping Steering Column
- 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
- Keyless Open and Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Power Door Locks
- Power Sunroof
- Brake assist
- Electronic Stability Control
- Hill Descent Control
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Perimeter Lighting
- Panic alarm
- Security system
- Theft Deterrent System (unauthorized Entry)
- Speed control
- 220 Amp Alternator
- Block heater
- Heavy-Duty Air Filter
- Auto-dimming door mirrors
- Black Chrome Grille Insert Bars
- Bumpers: body-color
- Heated door mirrors
- IntelliBeam Automatic High Beam on/Off
- LED Cargo Area Lighting
- Off-Road High Clearance Step
- Power door mirrors
- Rear step bumper
- 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
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Bed View Camera
- Buckle to Drive
- Color-Keyed Carpeting Floor Covering
- Compass
- Driver door bin
- Driver vanity mirror
- Floor-Mounted Center Console
- Following Distance Indicator
- Forward Collision Alert
- Front Pedestrian Braking
- Front Premium Floor Liners with Removable Carpet Insert
- Front reading lights
- HD Surround Vision
- Heated steering wheel
- Illuminated entry
- Lane Keep Assist with Lane Departure Warning
- Multicolor 15" Diagonal Head-Up Display
- OnStar Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Camera Mirror
- Rear Cross Traffic Braking
- Rear Pedestrian Detection
- Rear Premium Floor Liners with Removable Carpet Insert
- Rear reading lights
- Rear seat center armrest
- Safety Alert Seat
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trailer Camera Provisions
- Trailer Side Blind Zone Alert
- Trip computer
- Ultrasonic Front and Rear Park Assist
- Voltmeter
- 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
- Front Center Armrest
- Heated 2nd Row Outboard Seats
- Heated Driver and Front Outboard Passenger Seating
- Heated front seats
- Heated rear seats
- Perforated Front Leather Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated Driver and Front Passenger Seats
- Ventilated front seats
- Passenger door bin
- Hitch Guidance
- Hitch View
- in-Vehicle Trailering System App
- Integrated Trailer Brake Controller
- Red Recovery Hooks
- Alloy wheels
- Wheels: 20" x 9" Machined Aluminum
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
- Power Sliding Rear Window with Rear Defogger
- Rain sensing wipers
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
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
Dealer Notes
- Selling Price
- $69,639
- Doc Fee
- $225
- Final Price
- $69,864
- We're here to help: (903) 500-4343
- We're here to help: (903) 500-4343
