Meet the 2026 GMC Sierra 1500 AT4, a premium diesel crew cab built for commanding presence and refined capability. This Silver beauty combines rugged versatility with luxury appointments, offering a 3.0L I6 diesel engine paired with a smooth 10-speed automatic transmission and four-wheel drive. With impressive efficiency at 22 city and 26 highway MPG, plus an array of advanced technologies and premium comfort features, this truck is engineered for both work and weekend adventures.
- Power sunroof with automatic operation
- Premium Bose 7-speaker sound system with SiriusXM satellite radio
- Heated and ventilated leather front seats with 10-way power adjustment and lumbar support
- Multicolor head-up display with navigation system
- Wireless Apple CarPlay and Android Auto connectivity
- Integrated trailer brake controller with in-vehicle trailering system app
- Automatic emergency braking with forward collision alert and lane keep assist
- Off-road suspension with hill descent control and electronic locking rear differential
- 20-inch machined aluminum wheels with spray-on bedliner
- Remote vehicle starter with keyless start and push-button ignition
This AT4 AT4 Premium Package truck delivers confidence on any terrain with advanced driver assistance, premium leather upholstery in Jet Black with Kalahari accents, and a comprehensive suite of safety features. Recently added to our inventory with just over 9,400 miles, this is your opportunity to own a nearly new Sierra built specifically for those who demand performance without compromise. Visit us today to experience the capability, comfort, and technology that define this distinctive GMC lineup.
Used 2026 GMCSierra 1500 AT4
- Diesel
- Exterior Color
- Sterling Metallic
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 9,443 miles
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4WD
- Engine
- 3.0L I6
- VIN
- 1GTUUEE84TZ173411
- Stock Number
- 26109A
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
- Power Sunroof
- 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
- Black Sport Step
- Bumpers: body-color
- Front License Plate Kit
- Heated door mirrors
- IntelliBeam Automatic High Beam on/Off
- Power door mirrors
- Rear step bumper
- 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
- AT4 Premium Package
- Preferred Equipment Group 4SB
- Technology Package
- 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
- Off-Road High Clearance Step
- 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
- Bed View Camera
- Color-Keyed Carpeting Floor Covering
- Floor-Mounted Center Console
- Front Premium Floor Liners with Removable Carpet Insert
- HD Surround Vision
- Multicolor 15" Diagonal Head-Up Display
- OnStar Services Capable
- Rear Camera Mirror
- 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
Detailed Specifications
- 1st and 2nd row curtain head airbags
- 4-wheel ABS Brakes
- ABS and Driveline Traction Control
- Adaptive cruise control
- Anti-theft alarm system
- Audio System Premium Brand Speakers: Bose
- Audio controls on steering wheel
- Bluetooth wireless phone connectivity
- Braking Assist
- Bucket front seats
- Climate Controlled : Driver and passenger heated
- Compass
- Cruise controls on steering wheel
- Daytime running lights
- Driver seat memory
- Driver's side electrochromatic auto-dimming mirrors
- Dual illuminated vanity mirrors
- Dual reverse tilt mirrors
- Electrochromatic rearview mirror
- Engine block heater
- External temperature display
- Fold-up cushion rear seats
- Front Ventilated disc brakes
- Front and rear reading lights
- Front fog/driving lights
- Fuel Consumption: City: 22 mpg
- Fuel Consumption: Highway: 26 mpg
- Heated driver mirror
- Heated passenger mirror
- Heated steering wheel
- Integrated Navigation System : with voice activation
- Intercooled Turbo
- Leather seat upholstery
- Leatherette steering wheel trim
- Machined aluminum rims w/ painted accents
- Memorized Settings for 2 drivers
- Memorized Settings including door mirror(s)
- Metal-look center console trim
- Metal-look dash trim
- Metal-look shift knob trim
- OnStar
- Passenger Airbag
- Power remote w/tilt down driver mirror adjustment
- Power remote w/tilt down passenger mirror adjustment
- Power retractable mirrors
- Power windows
- Premium GMC Infotainment System
- Privacy glass: Deep
- Radio Data System
- Rear seats center armrest
- Remote Engine Start : Keyfob remote start
- Remote power door locks
- Remote window operation
- Side airbag
- Simulated wood/metal-look door trim
- SiriusXM with 360L AM/FM/Satellite Radio
- SiriusXM with 360L Satellite Radio
- Speed-proportional electric power steering
- Split rear bench
- Stability controll with anti-roll
- Suspension class: Off-road
- Tachometer
- Tilt and telescopic steering wheel
- Total Number of Speakers: 7
- Trailer hitch
- Transmission gear shifting controls on steering wheel
- Trip computer
- Video Monitor Location: Front
- Wheel Diameter: 20
- Wheel Width: 9
Standard Features
- Rear Camera Mirror
- Multicolor 15" Diagonal Head-Up Display
- Bed View Camera
- AT4 Preferred Package
- Off-Road High Clearance Step
- 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
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