New 2026 GMC Sierra 2500 AT4 Crew Cab
Stock #SI15145
Vehicle Notes
Experience top-tier performance and luxury with this new Off White 2026 GMC Sierra 2500 HD 4WD Crew Cab AT4, featuring only 5 miles on the odometer. P…
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Chassis Details
Stock Number
SI15145
Stock Type
New
Year
2026
Make
GMC
Model
Sierra 2500
Class
3
GVWR
11,350
Drivetrain
4x4
Cab Type
Crew
Vehicle Trim
Crew Cab, Standard Bed, AT4, 4WD
Vehicle VIN
1GT4UPEY7TF378685
Interior Color
Jet Black w/Kalahari Accents
Seating Capacity
5
Exterior Color Description
Coastal Dune
Engine Cylinder Count
8
Engine
Duramax 6.6L Biodiesel Turbo V8 470hp 975ft. lbs.
Transmission Type
Automatic
Fuel Type
Diesel
Engine Model
L5P
Engine Size (L)
6.6
Vehicle Options
- Engine cooler: Engine oil cooler
- Radiator
- Powertrain type: ICE
- Selectable mode transmission
- Transmission oil cooler
- Drive type: Four-wheel drive
- Traction control: All-speed ABS and driveline traction control
- Suspension ride type front: Independent front suspension
- Suspension type front: Short and long arm front suspension
- Front anti-roll: Front anti-roll bar
- Springs front: Front torsion springs
- Suspension ride type rear: Rigid axle rear suspension
- Springs rear: Rear leaf springs
- Rear Springs: Regular grade rear springs
- Speed sensitive steering: Digital Steering Assist speed sensitive power steering
- Steering: Hydraulic power-assist steering system
- Steering type: Re-circulating ball steering
- Ventilated brakes: Front and rear ventilated disc brakes
- ABS Brakes: Four channel ABS brakes
- Electronic parking brake
- Driver selectable steering effort
- Suspension type rear: Leaf spring rear suspension
- Tailpipe: Stainless steel single exhaust
- Rear locking differential: Automatic rear locking differential
- Sequential shift control
- Locking hub control: Auto locking hub control
- Electronic stability control: Electronic stability control system with anti-roll
- Brake type: 4-wheel disc brakes
- ABS Brakes: 4-wheel antilock (ABS) brakes
- Convex spotter: Driver and passenger convex spotter mirrors
- Headlight type: Projector beam headlights
- Headlights: LED low and high beam headlights
- Auto headlights: Auto on/off headlight control
- Running lights: LED daytime running lights
- Multiple headlights: Multiple enclosed headlights
- Delay off headlights: Delay-off headlights
- High mount stop light: High mounted center stop light
- Perimeter approach lighting: Remote activated perimeter approach lighting
- LED brake lights
- Front impact airbag driver: Driver front impact airbag
- Front side impact airbag driver: Seat mounted side impact driver airbag
- Overhead airbags: Curtain first and second-row overhead airbags
- Front impact airbag passenger: Passenger front impact airbag
- Front side impact airbag passenger: Seat mounted side impact front passenger airbag
- Occupancy sensor: Airbag occupancy sensor
- Number of airbags: 6 airbags
- 3-point seatbelt: Rear seat center 3-point seatbelt
- Seatbelt pretensioners: Front seatbelt pretensioners
- Illuminated entry
- Instrumentation display: Digital/analog instrumentation display
- Configurable instrumentation gauges
- Low tire pressure warning: Tire specific low air pressure warning
- Immobilizer
- Vehicle tracker: Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- Restricted driving mode/alerts: Teen Driver restricted driving mode/alerts
- Hill start assist
- Seatbelt pretensioners number: 2 seatbelt pre-tensioners
- Child door locks: Manual rear child safety door locks
- Turn signal in door mirrors: Turn signal indicator in door mirrors
- Fog lights: LED front fog lights
- Gauge cluster display size (inches): Gauge cluster display size: 12.30
- Remote panic alarm
- Cab mounted cargo light
- Body panels: Galvanized steel/aluminum body panels with side impact beams
- Number of doors: 4 doors
- Bed-rail protectors: Pickup bed-rail protectors
- Bumpers front: Body-colored front bumper
- Tow hooks front: 2 front tow hooks
- Bumpers rear: Body-colored rear bumper
- Fenders: Black fender flares
- Window Trim: Black side window trim
- Door handle material: Body-colored door handles
- Paint: Non-metallic paint
- Special paint: Monotone paint
- Wheel covers: Wheel hub covers
- Spare tire location: Crank-down spare tire
- Door mirror type: Power extendable trailer mirrors
- Exterior mirror spot lights: Exterior mirror LED spot lights
- Towing class: Class IV tow rating
- Towing hitch: Trailer hitch
- Towing brake controller: Trailer brake controller
- Towing trailer sway: Trailer sway control
- Towing hitch light: Trailer hitch light
- Rear bumper step
- Door mirror style: Black door mirrors
- Bumper insert: Dark chrome front bumper insert
- Bumper rub strip front: Black front bumper rub strip
- Passenger doors rear left: Conventional left rear passenger door
- Door mirrors: Power door mirrors
- Rear cargo door: MultiPro Tailgate tailgate
- Heated door mirrors: Heated driver and passenger side door mirrors
- Boxside steps: BedStep integrated side steps
- Passenger doors rear right: Conventional right rear passenger door
- Visor driver mirror: Driver visor mirror
- Visor illuminated driver mirror: Illuminated driver visor mirror
- Visor passenger mirror: Passenger visor mirror
- Visor illuminated passenger mirror: Illuminated passenger visor mirror
- Rear seat direction: Front facing rear seat
- Overhead console: Mini overhead console
- Glove box: Locking glove box
- Number of beverage holders: 8 beverage holders
- Seatback storage pockets: 2 seatback storage pockets
- Door bins front: Driver and passenger door bins
- Door bins rear: Rear door bins
- Under seat tray rear: Rear under seat tray
- Cruise control: Cruise control with steering wheel mounted controls
- Adaptive cruise control
- Driver foot rest
- Door locks: Power door locks with 2 stage unlocking
- Keyfob keyless entry
- All-in-one key: All-in-one remote fob and ignition key
- Auto door locks: Auto-locking doors
- Auto-dimming door mirror driver: Auto-dimming driver side mirror
- Tailgate control: Tailgate/power door lock
- Keyfob cargo controls: Keyfob trunk control
- Keyfob window controls: Keyfob window control
- Tachometer
- Oil pressure gauge
- Engine/electric motor temperature gauge
- Voltmeter
- Transmission temperature gauge: Transmission fluid temperature gauge
- Engine hour meter
- Clock: Digital clock
- Compass
- Temperature display: Exterior temperature display
- Folding door mirrors: Power folding door mirrors
- Engine temperature warning
- Battery charge warning
- Key in vehicle warning
- Door ajar warning
- Turn signal warning: Turn signal on warning
- Oil pressure warning
- Transmission fluid temperature warning: Transmission fluid temp warning
- Brake pad warning: Brake pad wear indicator
- Rear seat check warning: Rear Seat Reminder rear seat check warning
- Trip computer
- First-row windows: Power first-row windows
- Second-row windows: Power second-row windows
- Wipers: Variable intermittent front windshield wipers
- Easy lift tailgate: EZ Lift
- Easy lower tailgate: EZ Lower
- Beverage holders rear: Rear beverage holders
- Auto-dimming door mirror passenger: Auto-dimming passenger side mirror
- Built-in virtual assistant: Google Built-In built-in virtual assistant
- Driver information center
- Day/Night rearview mirror
- Front reading lights
- Rear reading lights
- Variable panel light: Variable instrument panel light
- Headlights on reminder
- Trip odometer
- Weight capacity alert: GCW Alert weight capacity alert
- Integrated tailgate step
- Full gauge cluster screen
- Seating capacity: 5
- Front head restraints: Height adjustable front seat head restraints
- Front head restraint control: Manual front seat head restraint control
- Rear seats fixed or removable: Fixed rear seats
- Rear seats: Split-bench rear seat
- Rear seat folding position: Fold-up rear seat cushion
- Folding rear seats: 60-40 folding rear seats
- Rear head restraints: Height adjustable rear seat head restraints
- Rear head restraint control: Manual rear seat head restraint control
- Rear head restraint control: 2 rear seat head restraints
- Front seat upholstery: Leather front seat upholstery
- Front seatback upholstery: Plastic front seatback upholstery
- Door trim insert: Vinyl door trim insert
- Headliner material: Cloth headliner material
- Headliner coverage: Full headliner coverage
- Floor covering: Full carpet floor covering
- Panel insert: Aluminum instrument panel insert
- Gearshifter material: Urethane gear shifter material
- Door panel insert: Aluminum and sim carbon fiber door panel insert
- Console insert material: Chrome console insert
- Interior accents: Chrome interior accents
- Rear seat upholstery: Vinyl rear seat upholstery
- Rear seatback upholstery: Carpet rear seatback upholstery
- Number of memory settings: 2 memory settings
- Climate control: Automatic climate control
- Air conditioning: Yes
- Dual-zone front climate control
- Rear under seat ducts: Rear under seat climate control ducts
- Rear console climate control ducts
- Steering wheel material: Leatherette steering wheel
- Heated steering wheel
- Armrests rear: Rear seat center armrest
- Floor coverage: Full floor coverage
- Cabback insulator
- Seek scan
- External memory: Premium GMC Infotainment System external memory control
- Internet radio capability
- Satellite trial: 3 month satellite trial subscription
- Amplifier
- Antenna: Fixed audio antenna
- Number of first-row screens: 2 total number of 1st row displays
- Speakers number: 7 speakers
- Turn-by-turn nav: OnStar Turn-by-Turn Navigation
- Emergency SOS Capable: OnStar vehicle integrated emergency SOS system
- Internet access: Wi-Fi Hotspot capable mobile hotspot internet access
- Mobile app access: MyGMC Mobile App mobile app access
- Basic warranty: 36 month/36
- 000 miles
- Powertrain warranty: 60 month/60
- 000 miles
- Corrosion perforation warranty: 72 month/100
- 000 miles
- Roadside warranty: 60 month/60
- 000 miles
- Maintenance warranty: 12 month/unlimited
- Preferred Equipment Group 4SB - Includes LED Cargo Area Lighting
- Trailer Side Blind Zone Alert
- SiriusXM with 360L Trial Subscription
- Remote Vehicle Starter System
- Keyfob remote start
- Smart device remote start
- Safety Alert Seat
- Ultrasonic Front and Rear Park Assist
- Trailer Cam Provisions and Trailer Viewing Software
- Electric Rear-Window Defogger
- Floor-Mounted Center Console
- Beverage holders: Front beverage holders
- Floor console: Full floor console
- Floor console storage: Covered floor console storage
- Armrests front center: Front seat center armrest
- Gloss Black Header Grille and Grille Insert Bars
- Unauthorized Entry Theft-Deterrent System
- Bed View Camera with Two Trailer Camera Provisions
- Front Rain-Sensing Wipers
- Sierra HD Pro Safety
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- Buckle to Drive
- Automatic Emergency Braking
- Brake assist system: Automatic Emergency Braking brake assist system
- IntelliBeam Automatic High Beam On/off
- Lane Departure Warning
- Wireless Phone Projection
- 2 USB Ports
- Rear Cross Traffic Alert
- 120-Volt Instrument Panel Power Outlet
- 2 Charge/data USB Ports Inside Center Console
- Heated Driver and Front Outboard Passenger Seats
- Wireless Charging
- X31 Off-Road Package
- Off-Road Suspension
- Suspension: Off-road ride suspension
- Shock absorbers: Rancho gas-pressurized shock absorbers
- Inclinometer
- Hill Descent Control
- Skid Plates
- Front Premium Floor Liners with Removable Carpet Insert
- Steering Wheel Audio Controls
- Rear Premium Floor Liners with Removable Carpet Insert
- 2 Charge-Only Rear USB Ports
- OnStar Services Capable
- 120-Volt Bed Mounted Power Outlet
- Heated 2nd Row Outboard Seats
- Power Front Passenger Windows with Express Up/down
- One-touch down window: Front and rear one-touch down windows
- One-touch up window: Driver and passenger one-touch up windows
- Bose Premium 7-Speaker Sound System
- 2-Speed Active Transfer Case
- 4WD type: AutoTrac part and full-time 4WD
- Transfer case: Electronic transfer case shift
- Two-Speed Transfer Case
- Deep-Tinted Glass
- Spray-On Pickup Bedliner with GMC Logo
- HD Surround Vision
- Front camera: Front mounted camera with washer
- Right camera: Right side camera
- Left camera: Left side camera
- Rear camera: HD Rear Vision Camera w/Hitch View rear mounted camera
- Camera: HD Surround Vision w/Hitch View aerial view camera
- Ventilated Driver and Front Passenger Seats
- Manual Tilt-Wheel/telescoping Steering Column
- Steering wheel tilt: Manual tilting steering wheel
- Steering wheel telescopic: Manual telescopic steering wheel
- Keyless Open and Start
- Fob engine controls: Keyless Open/Keyless Start with hands-free access and push button start
- Ignition type: Push-button
- ProGrade Trailering System
- In-Vehicle Trailering System App
- Vehicle and trailer reverse assist: Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Hitch Guidance with Hitch View
- Vehicle to trailer hitching assist: Hitch Guidance vehicle to trailer hitching assist
- Push Button Start
- Rear Wheelhouse Liners
- Engine Location: Front mounted engine
- Engine Mounting direction: Longitudinal mounted engine
- Engine block material: Iron engine block
- Cylinder head material: Aluminum cylinder head
- Battery run down protection
- Accessory power: Retained accessory power
- Engine Configuration: V8
- AT4 Premium Plus Package - Includes Power Sunroof
- First-row sunroof: First-row sliding and tilting glass sunroof with power 1-touch activation sunshade
- Off-Road High Clearance Step
- Technology Package
- Multicolor 15" Diagonal Head-Up Display
- Head up display: Head-up display
- Speedometer: Redundant digital speedometer
- Inside Rearview Auo-Dimming Rear Camera Mirror
- Rearview mirror: Auto-dimming rear view mirror
- Video rearview mirror: Video-feed rearview mirror
- Clearance lights: Cab clearance lights
- Garage door opener
- Rear windshield: Power rear windshield
- AT4 Preferred Package - Includes Power Sliding Rear Window with Defogger
- Universal Home Remote
- 10-Way Power Driver Seat Adjuster with Lumbar - Includes Driver seat direction: Driver seat with 8-way directional controls
- Driver lumbar: Driver seat with 2-way power lumbar
- Power driver seat controls: Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- Front Bucket Seats - Includes 10-Way Power Passenger Seat Adjuster with Lumbar
- Passenger seat direction: Front passenger seat with 8-way directional controls
- Front passenger lumbar: Front passenger seat with 2-way power lumbar
- Power passenger seat controls: Passenger seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- Split front seats: Bucket front seats
- Driver Memory
- Winter Grille Cover
- Pickup Box
- Front License Plate Kit
- 3.42 Axle Ratio
- AM/FM Stereo with Premium GMC Infotainment System - Includes Voice activated audio: Voice activated audio controls
- Wireless streaming: Bluetooth wireless audio streaming
- Primary display size: 13.4 inch primary display
- Primary display touchscreen: Primary monitor touchscreen
- Handsfree: Bluetooth handsfree wireless device connectivity
- 11
- 350 lbs (5
- 148 Kg) GVWR
- Engine Block Heater
- Exhaust Brake
- 220-Amp Alternator - Includes Alternator Type: Alternator
- Duramax 6.6L Turbo-Diesel V8 Engine - Includes Capped Fuel Fill
- 10-Speed Automatic Transmission
- Transmission: Allison 10-speed automatic
- Overdrive transmission
- Lock-up transmission
- Transmission Type: Automatic
- Dual Heavy-Duty 70 Amp Battery
- DEF fluid gauge: Diesel exhaust fluid (def) gauge
- Low level warnings: Low level warning for oil
- coolant
- fuel
- washer fluid
- brake fluid and diesel exhaust fluid (DEF)
- Compressor: Intercooled turbo
- 20" High Gloss Black 8 Spokes Aluminum Wheels
- LT275/65R20 AT BW Tires - Includes LT275/70R18 AT BW Spare Tire
- Tires: LT275/65SR20 AT BSW front and rear tires
- Hitch Package
- Gooseneck/5th Wheel Prep Package - Includes Towing wiring harness: Trailer wiring harness
- Towing prep: 5th wheel and gooseneck prep
- California State Emissions Requirements
- View All
Body Details
Body Type
Pickup
| Call For Pricing |
Pricing Details
| MSRP | $89,880 |
| Dealer Adjustment | - $3,596 |
| Documentation Fee | + $85 |
| Electronic Filing Fee | + $37 |
| Total Price | $86,406 |
| Rebates | - $1,000 |
| Dealer Discount | - $122 |
| Price | $85,284 |
| Total Savings | $1,122 |
Price includes all dealer fees. Excludes taxes, title, registration, and license fees.
Vehicle available NOW in Tustin, CA.
Contact Tustin Buick GMC for more info.
Disclaimer:
*Net Price includes a Factory Rebate available to all, if applicable, on this vehicle and is valid on a cash or financed purchase only by an individual for their personal use. The net price does not apply to a lease. Some Factory Rebates are California Resident specific and may vary for residents of other states. We Only Provide 4 Gallons of Gas at Purchase. No sales to Dealers, Brokers or Exporters. For out of state purchase, customers must be present to purchase. If shipping is required, dealership must facilitate; no exceptions. Please contact us for special Multi-Vehicle or Fleet pricing. Price includes $85 Doc Fee, $37 electronic registration fee, and any emission testing charge. Price does not include government fees and taxes, any finance charges, and $1.75 per new tire state tire fee. All vehicles are subject to prior sale. While every reasonable effort is made to ensure the accuracy of this information, we are not responsible for any errors or omissions contained on these pages. Leasing & financing available on approved credit. Trade-ins accepted. Offers, incentives, discounts, or financing are subject to expiration and other restrictions. See dealer for qualifications and complete details. Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness. *EPA-estimate metric: these are contingent on ideal conditions within a lab. Real-world situations such as carrying passengers or cargo, using climate control, driving style, and ambient temperatures can affect actual metrics.
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