*Prices may include manufacturer rebates and offers not available to all buyers. Prices shown exclude tax, tag, and doc fees. Every effort is made to ensure accurate prices, options, and features, however, in the event of a mistake, dealer cannot be held liable.
New 2026 GMCSierra 1500 AT4 3.0L I-6 cyl Truck Crew Cab
- Exterior Color
- Sterling
- Interior Color
- Jet Black With Kalahari Accents
- Body/Seating
- Truck Crew Cab/5 seats
- Fuel Economy
- 22/26 MPG City/Hwy
- Transmission
- Automatic
- Engine
- I-6 cyl
- VIN
- 1GTUUEE8XTZ187426
- Stock Number
- F56057
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
- Auto-dimming rearview mirror
- Split folding rear seat
Included Packages & Accessories
- Driver Memory
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Power Rear Windows with Express Down
- Deep-Tinted Glass
- Keyless Open and Start
- Push Button Start
- Floor-Mounted Center Console
- 3.23 Rear Axle Ratio
- 10-Speed Automatic Transmission
- Front Bucket Seats
- 2 Charge/Data USB Ports Inside Center Console
- Electronic Precision Shift
- Front Premium Floor Liners with Removable Carpet Insert
- Rear Premium Floor Liners with Removable Carpet Insert
- Engine Block Heater
- Duramax 3.0L Turbo-Diesel I6 Engine
- 220 Amp Alternator
- 850 Heavy-Duty Battery
- Delete External Engine Oil Cooler
- 7,200 lbs GVWR
- 255/80R17SL AS BW Spare Tire
- Premium GMC Infotainment Audio System Radio
- 6-Speaker Audio System Feature
- Wireless Apple CarPlay/Wireless Android Auto
- 275/60R20SL AT BW Tires
Detailed Specifications
- 1-touch down
- 1-touch up
- 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
- 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: 18"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Radio data system
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speakers: 6
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Diesel engine warranty: 60 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- Front center armrest
- Front seats: bucket
- Heated front 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
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: I-6
- Cylinder deactivation
- Drive type: four-wheel
- Engine liters: 3.0L
- Engine location: front
- Fuel economy city: 22mpg
- Fuel economy combined: 17mpg
- Fuel economy highway: 26mpg
- Fuel tank capacity: 24.0gal.
- Horsepower: 305hp @ 3,750RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 24
- Rear locking differential
- Recommended fuel: Diesel
- Standard fuel economy fuel type: diesel
- Torque: 495 lb.-ft. @ 2,750RPM
- Transmission: 10 speed automatic
- Variable intake manifold
- Variable valve control
- Approach angle: 19 deg
- Departure angle: 24 deg
- Ground clearance (min): 203mm (8.0")
- Ramp breakover angle: 18 deg
- Auto-dimming door mirrors
- Bumpers: chrome
- Door mirrors: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch
- Trailer sway control
- Compression ratio: 15.00 to 1
- Curb weight: 2,458kg (5,420lbs)
- Engine bore x stroke: 84.0mm x 90.0mm (3.31" x 3.54")
- Engine displacement: 3.0 L
- Engine torque: 495 lb.-ft. @ 2,750RPM
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,915mm (75.4")
- Exterior length: 6,134mm (241.5")
- Front headroom: 1,092mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,676mm (66.0")
- GVWR: 3,266kg (7,200lbs)
- Greenhouse Gas Score (GG): 3
- Payload: 789kg (1,740lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,529mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,656mm (65.2")
- Towing capacity: 3,992kg (8,800lbs)
- Turning radius: 7.5m (24.8'')
- Wheelbase: 3,988mm (157.0")
- Appearance: analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear: HD Rear Vision Camera yes
- 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
- 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
- Security system
- Tracker system: Stolen Vehicle Assistance
- Traction control
Standard Features
- 220 Amp Alternator
- Engine Block Heater
- 850 Heavy-Duty Battery
- Delete External Engine Oil Cooler
- 7,200 lbs GVWR
- 255/80R17SL AS BW Spare Tire
- Rear Premium Floor Liners with Removable Carpet Insert
- 2 Charge/Data USB Ports Inside Center Console
- Electronic Precision Shift
- 6-Speaker Audio System Feature
- Wireless Apple CarPlay/Wireless Android Auto
Dealer Notes
Recent Arrival! Sterling 2026 GMC Sierra 1500 10-Speed Automatic, 4WD, Jet Blk With Kalahari Acc. Trailering Package (Hitch Guidance), 10-Speed Automatic, 4WD, Jet Blk With Kalahari Acc, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Interior Power Outlet, 170 Amp Alternator, 2 Charge/Data USB Ports Inside Center Console, 2 Type-C Charge-Only Rear USB Ports, 220 Amp Alternator, 3.23 Rear Axle Ratio, 4-Wheel Disc Brakes, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Auto-Locking Rear Differential, Automatic Emergency Braking, Automatic temperature control, Auxiliary External Transmission Oil Cooler, Brake assist, Buckle to Drive, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electronic Stability Control, Emergency communication system: OnStar, Engine Block Heater, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front dual zone A/C, Front fog lights, Front Pedestrian Braking, Front Prem Floor Liners w/Removable Carpet Insert, Front Rain-Sensing Wipers, Front reading lights, Front wheel independent suspension, Fully automatic headlights, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seating, Heated front seats, Heated steering wheel, Heavy-Duty Air Filter, Hill Descent Control, Hitch View, Illuminated entry, In-Vehicle Trailering System App, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Keep Assist w/Lane Departure Warning, LED Cargo Area Lighting, Low tire pressure warning, Memory seat, Navigation System, Occupant sensing airbag, Off-Road Suspension, OnStar Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perimeter Lighting, Power Door Locks, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power passenger seat, Power Rake & Telescoping Steering Column, Power Rear Windows w/Express Down, Power steering, Power windows, Premium Bose 7-Speaker Sound System, Push Button Start, Radio data system, Radio: Premium GMC Infotainment Audio System, Rain sensing wipers, Rear Cross Traffic Braking, Rear Pedestrian Detection, Rear Prem Floor Liners w/Removable Carpet Insert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, Security system, SiriusXM w/360L Trial Subscription, Speed control, Speed-sensing steering, Split folding rear seat, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Steering wheel mounted audio controls, Tachometer, Telescoping steering wheel, Theft Deterrent System (Unauthorized Entry), Tilt steering wheel, Traction control, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Trip computer, Ultrasonic Front & Rear Park Assist, Variably intermittent wipers, Ventilated Driver & Front Passenger Seats, Voltmeter, Wi-Fi Hotspot Capable, Wireless Apple CarPlay/Wireless Android Auto, and Wireless Charging.
KBB.com Consumer Reviews
- 3.0
Nice truck
By froggy on Sunday, December 06, 2020
I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture. - 5.0
Great Truck
By Mel on Sunday, April 25, 2021
I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that. - 5.0
Well done GM
By Tony on Thursday, November 26, 2020
This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!
