2026 GMC Sierra 3500 HD AT4

  • New
  • Diesel
$88,005MSRP
$87,127Final Price
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TUSTIN BUICK GMC
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    The overview

    Exterior Color
    Summit White
    Interior Color
    Jet Black with Kalahari accents, Perforated Front
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    6.6L Duramax Turbo-Diesel V8 engine
    VIN
    1GT4UVEY2TF348451
    Stock Number
    SI15031
    • In Transit
    • Basic: 3 Years/36,000 Miles
    • Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
    • Drivetrain: 5 Years/60,000 Miles, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
    • Maintenance: First Visit: 12 Months/12,000 Miles
    • Roadside Assistance: 5 Years/60,000 Miles, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
    • Warranty: <<< Preliminary 2026 Warranty >>>
    • Max seating capacity: 5
    • Fuel System: Direct Injection
    • Fuel tank capacity: 36 gal
    • Horsepower: 470
    • Towing capacity: 20000 lbs
    • 13.4" diagonal GMC Premium Infotainment System with Google built-in:
      • 13.4" diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM1 radio capable
      • Bluetooth®2 streaming audio for music and select phones
      • Wireless Apple CarPlay™ capability for compatible phones3
      • Wireless Android Auto™ capability for compatible phones4
      • Customize and manage entertainment and vehicle feature setting
      • Use, control and manage select smartphone apps through the Infotainment system
      • Voice-activated technology for phone
    • Bluetooth®:
      • Pair your compatible mobile phone to your vehicle's infotainment system1
      • Place and receive hands-free phone calls
      • Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command system
      • With streaming audio capability, you can listen to files stored on your phone or Bluetooth digital media device
    • Bose Premium Sound System:
      • 7-speakers with Richbass® woofer
      • Bose is renowned for expert sound engineering and high-quality audio and with premium speakers positioned throughout the cabin
      • May require additional optional equipment
    • SiriusXM with 360L Trial Subscription:
      • With your trial subscription, new GM vehicles equipped with SiriusXM with 360L advance in-car technology will bring you closer to your favorite stars, artists, creators, hosts and athletes1
      • SiriusXM with 360L transforms your ride with our most extensive and personalized radio experience on the road that lets you enjoy ad-free music, talk and news, live sports, comedy, podcasts and more
      • Experience SiriusXM wherever you go in your vehicle and on the SiriusXM app with personalization features to make discovering your perfect entertainment easier than ever before
    • Wi-Fi® Hotspot capable:
      • Terms and limitations apply. See onstar.com or dealer for details.
      • May require additional optional equipment
    • Wireless phone projection:
      • For Apple CarPlay™1 and Android Auto™2
    • 18" LT275/70R18 all-terrain, blackwall spare tire:
      • May require additional optional equipment
    • 20" LT275/65R20 all-terrain, blackwall tires
    • 20" high gloss Black aluminum wheels
    • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps
    • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
    • Black beltline moldings
    • Body-color door handles
    • Body-color front bumper
    • Body-color rear bumper:
      • With integrated CornerSteps
    • Cargo bed LED lighting:
      • Provides light to find cargo in the bed
      • May require additional optional equipment
    • Cargo tie-downs:
      • 12-fixed rated at 500 lbs. per corner
    • CornerStep rear bumper:
      • Helps make it easier to get into and out of the pickup bed
      • Located at each end of the rear bumper
      • Textured step pads to help provide secure footing
    • Deep-tinted glass:
      • Provides added protection from sun and glare
    • Front license plate bracket:
      • Front bracket is included if displaying a front license plate is required in your state
    • GMC MultiPro Tailgate:
      • Six function tailgate designed to help improve loading, unloading and accessing the cargo box
      • Hitch area lighting
      • Power lock and release
      • May require additional optional equipment
    • High gloss Black mirror caps
    • IntelliBeam:
      • At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1
    • LED fog lamps
    • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass:
      • Chrome mirror caps
      • AT4 features high gloss Black mirror caps
      • Power folding/extending
      • Lower convex mirrors
      • Heated upper glass
      • Integrated turn signal indicators
      • Puddle lamps
      • Perimeter lighting
      • Auxiliary lighting
      • Extends 3.31-inches
    • Power sliding rear window with rear defogger:
      • Utilizes a warming grid to remove fog or frost from the rear window
      • The window switch is conveniently located in the overhead console for easy 1-touch operation
      • May require additional optional equipment
    • Rainsense automatic wipers:
      • When turned on, will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshield
    • Rear wheelhouse liners:
      • Help protect your truck's rear wheelhouse area from damage caused by dirt, rocks, mud, road salt and the weather
      • May require additional optional equipment
    • Side Bed Step:
      • Black textured step pads help provide secure footing
      • Integrated on forward portion of outer bed on driver and passenger side to provide ease of access to forward portion of the bed
    • Spare tire carrier lock:
      • Helps keep spare tire secure
    • Spray-on bedliner:
      • Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shifting
      • Covers the entire bed surface below side rails, front box top rail, gauge hole plugs and tie-downs
      • Chemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight seal
      • Does not include spray-on liner on tailgate due to Black composite inner panel
      • Includes GMC logo on all trims except PRO
    • Tailgate and bed rail protection caps
    • Tailgate with EZ Lift assist, power lock & release:
      • Hitch area lighting
      • May require additional optional equipment
    • Winter Grille Cover:
      • May require additional optional equipment
    • 10-way power driver seat with power lumbar:
      • Includes 8-way power driver seat
      • Includes a 2-way power lumbar control
    • 10-way power front passenger seat:
      • Includes 8-way power front passenger seat
      • Includes a 2-way power lumbar control
    • 12.3" diagonal color Driver Information Center:
      • Includes driver personalization, warning messages and vehicle information
      • Replaces traditional analog gauges with fully reconfigurable high definition cluster layout
      • High definition display provides crisp, premium appearance
    • 120-volt box-mounted power outlet:
      • 3-prong auxiliary household-style outlet
      • Located in the pickup bed
      • May require additional optional equipment
    • 120-volt power outlet:
      • 3-prong auxiliary household-style outlet
      • Located on the instrument panel
      • Makes it convenient for powering laptops, phone chargers and other electronic devices
      • May require additional optional equipment
    • 13.4" diagonal GMC Premium Infotainment System with Google built-in:
      • 13.4" diagonal GMC Premium Infotainment System with Google built-in, includes multi-touch display, AM/FM/SiriusXM1 radio capable
      • Bluetooth®2 streaming audio for music and select phones
      • Wireless Apple CarPlay™ capability for compatible phones3
      • Wireless Android Auto™ capability for compatible phones4
      • Customize and manage entertainment and vehicle feature setting
      • Use, control and manage select smartphone apps through the Infotainment system
      • Voice-activated technology for phone
    • Adaptive Cruise Control:
      • Automatically follows a detected vehicle ahead at a driver-selected following gap1
      • If no vehicle is detected in your path, works like regular cruise control
      • You can always override the feature and take control
      • Adaptive Cruise Control is compatible with Trailering. It is important to ensure your trailer has functioning brakes while trailering with heavier loads. Read your Owner's Manual to review Trailer Brake requirements and to learn more about the limitations of this system.
    • Assist handles:
      • Front A-pillar mounted for Driver and Passenger
      • Rear B-pillar mounted
    • Carpeted floor covering:
      • Color-keyed to match the interior
    • Compass:
      • Located in instrument cluster
    • Driver memory:
      • Press memory button 1 or 2 to program and recall preferences
      • May require additional optional equipment
    • Dual-zone automatic climate control:
      • Automatically maintains the selected temperatures for both the driver and front passenger
      • Allows individual climate settings for both driver and front passenger
      • Driver and front passenger can choose a temperature up to 30 degrees difference
      • May require additional optional equipment
    • Front bucket seats:
      • May require additional optional equipment
    • Front center console:
      • Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity
      • May require additional optional equipment
    • Heated driver and front outboard passenger seats:
      • Separate buttons on the climate control panel allow you to choose from 3 levels of warmth
      • At the touch of a button you can warm the cushions and seatbacks with multilevel temperature control
      • Individually controlled
      • Seats can be programmed to automatically warm up when it's cold out
      • May require additional optional equipment
    • Heated rear outboard seats:
      • At the touch of a button you can warm the cushions
      • Provide comfort in cold weather for passengers in the rear outboard seating positions
      • Passengers can manage heat settings with their own controls
      • May require additional optional equipment
    • Heated steering wheel:
      • With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day
      • May require additional optional equipment
    • In-Vehicle Trailering App:
      • Checklist1
      • Trailer maintenance reminders
      • Trailer security alerts
      • Trailer mileage
      • Tow/haul reminder
      • Trailer electrical diagnostics
      • Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed
    • Inside rearview auto-dimming mirror:
      • Automatically dims the inside rearview mirror when it senses bright light from behind
      • When headlamp glare is no longer detected, the mirror returns to its normal state
    • Keyless Open and Start:
      • With the key fob in your possession, lock and unlock your car's doors by pressing the button on a front exterior door handle, increasing convenience
      • Lockout protection helps you avoid locking keys in the vehicle
    • Manual tilt and telescoping steering column:
      • Allows the driver to adjust the steering wheel up or down, and the steering column forward or back
      • May require additional optional equipment
    • Outside temperature display:
      • Located in infotainment display
    • Power door locks:
      • Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob (when equipped)
    • Power windows with driver and front passenger express-up/down:
      • Quickly raises the window or lowers it with the touch of a button
      • If obstruction is detected, the anti-pinch feature will auto-reverse
    • Power windows with driver express-up/down:
      • Quickly raises the window or lowers it with the touch of a button
      • If an obstruction is detected, the anti-pinch feature will auto-reverse
    • Power windows with rear express-down
    • Premium front floor liners with removable carpet insert
    • Premium rear floor liners with removable carpet insert
    • Rear air vents:
      • Provides cabin comfort for rear occupants
    • Rear window defogger:
      • Utilizes a warming grid to help remove fog or frost from the rear window
    • Remote Start:
      • Start your vehicle remotely and step into a comfortably warmed or cooled vehicle, depending on the weather and your preset preferences
      • Locks doors and turns on parking lamps while the engine is running
      • Activates the climate control system
    • Steering-wheel mounted controls:
      • Allow the driver to easily operate the audio system and phone interface controls
      • May require additional optional equipment
    • Theft-deterrent unauthorized entry system:
      • Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter
      • Helps deter unauthorized entry, helping to protect your vehicle
      • May require additional optional equipment
    • USB ports:
      • (2) Charge ports located on rear of console1
    • USB ports:
      • (2) Data/charge ports located inside center console1
    • USB ports:
      • (2) First row, located on console1
    • Universal Home Remote:
      • 3-channel programmable
      • Conveniently activates compatible devices such as garage door openers, security systems, and home automation devices from inside your vehicle
      • May require additional optional equipment
    • Up-level rear seat with storage package:
      • 60/40 Full-length folding bench seat
      • Seatback storage on left and right side
      • Center fold out armrest with 2 cupholders
      • Underseat storage (full cab width)
    • Upfitter switches:
      • Program electrical components such as exterior lighting, snow removal equipment or other features to turn on and off at the flip of a switch
      • Allows the driver to operate upfitter-installed equipment conveniently from inside the cab
      • Provides 3-30 amp and 2 20 amp configurable circuits to facilitate installation of aftermarket electrical accessories by the dealer or upfitter1 at customer expense
      • Installation instructions and technical assistance available at www.gmupfitter.com
      • May require additional optional equipment
    • Ventilated driver and front passenger seats:
      • Separate buttons on the climate control panel allow you to choose from 3 levels of fan circulation
      • Individually controlled
      • Cooling feature includes both seatbacks and cushions
      • May require additional optional equipment
    • Wireless Charging:
      • Uses induction technology for select portable electronic devices1
      • Convenient charging location on the top of the center console
      • Customers can charge their smartphones while they drive without connecting to any cables
      • May require additional optional equipment
    • Wrapped steering wheel
    • 10-speed automatic transmission:
      • Tow/Haul mode reduces shift cycling for better control and improved cooling when towing or hauling heavy loads
      • Electronically controlled with overdrive
      • Auto Grade Braking that automatically downshifts when needed to enable engine braking, helping to slow the vehicle on downhill grades and reduce brake wear (operates in Tow/Haul mode)
      • May require additional optional equipment
    • 12,250 lbs. GVWR:
      • When properly equipped; includes weight of vehicle, passengers, cargo and equipment
    • 220-amp alternator:
      • May require additional optional equipment
    • 3.42 rear axle ratio:
      • Requires a diesel engine
    • 4-wheel antilock disc brakes:
      • Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
      • DuraLife™ brake rotors feature a hardened surface to reduce corrosion and provide quieter braking with less vibration. DuraLife™ rotors are hardened and strengthened during the manufacturing process
      • Brake system features a corrosion-fighting process called Ferritic Nitro-Carburizing (FNC) which can double rotor life expectancy and reduce or minimize rust over non-FNC coated rotors
    • 6.6L Duramax Turbo-Diesel V8 engine:
      • 470 hp [350.5 kW] @ 2800 rpm
      • 975 lb-ft of torque [1322 Nm] @ 1600 rpm
      • 3.42 rear axle ratio
      • Exhaust brake
      • Engine block heater
      • Capped fuel fill
      • Paired with an Allison® 10-speed automatic transmission
      • Diesel Exhaust Fluid (DEF) fill located in fuel door
      • Engine after run feature for cooling performance
      • May require additional optional equipment
    • Air filtration monitoring:
      • Alerts the driver when the engine air filter needs replacement
    • Automatic locking rear differential:
      • When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction
      • The Eaton® Locker senses a difference in wheel speed of approximately 100 rpm
    • Autotrac® 2-speed transfer case with push button controls:
      • 4-button control 2WD, Auto, 4WD, 4WD LO
      • 2WD High for most on-road and highway situations
      • 4WD High for snowy or wet roads when added traction is needed
      • 4WD Low for deep sand, mud or snow to provide maximum torque to all 4 wheels
      • When in AUTO mode, remains in 2WD mode until the system detects wheel slippage
        • Automatically engages 4WD until traction is regained
      • May require additional optional equipment
    • Brake pad wear indicator
    • Capped fuel fill:
      • Requires diesel engine or pickup bed delete
    • Diesel exhaust brake:
      • Reduces the amount of conventional braking needed while towing a heavy trailer or driving downhill
      • Uses the variable vanes in the turbocharger to smoothly and quietly create additional back pressure in the engine to help slow the vehicle
      • Works with the transmission's Tow/Haul mode and Auto Grade Braking to help the driver maintain the desired speed even on long, steep downgrades
      • Switch activated
      • May require additional optional equipment
    • Digital Variable Steering Assist:
      • This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue
    • Engine block heater:
      • Helps ease cold weather starts
      • Heats the engine and engine block fluids
    • External auxiliary transmission oil cooler:
      • Heavy-duty air-to-oil cooler
      • Helps provides optimal transmission performance even when operating under a heavy load or towing a trailer
      • May require additional optional equipment
    • External engine oil cooler:
      • Heavy-duty air-to-oil cooler
      • Helps extend engine oil life under heavy loads
    • Fully boxed frame:
      • Hydroformed front section
      • High-strength steel
    • Gooseneck / 5th Wheel Prep Package:
      • Hitch platform to accept Gooseneck or 5th wheel hitch
      • Hitch platform with tray to accept ball and stamped box holes with caps installed
      • Box mounted 7-pin trailer harness
      • May require additional optional equipment
    • Heavy-Duty Air Filter:
      • Thick construction helps to trap more dirt before it can enter the air intake
    • Heavy-duty 730 cold-cranking amps battery:
      • 70 Amp-hr
      • Maintenance-free with rundown protection and retained accessory power
    • High idle switch:
      • Runs the engine in High Idle mode, holding the engine at approximately 1200 rpm
      • Operates using the cruise control buttons on the steering wheel
      • High Idle mode is deactivated when you turn off the truck or before you drive off
      • May require additional optional equipment
    • Integrated trailer brake controller:
      • Integrated with the antilock brake system (ABS)
      • Helps provide measured brake force signaling to electric-controlled trailer brake systems
      • Trailer gain and output are displayed in the Driver Information Center
    • Off-Road suspension:
      • May require additional optional equipment
    • Pickup bed:
      • Roll-formed high-strength steel
      • Includes bed assist step
    • Push Button Start
    • Red vertical recovery hooks:
      • Two front frame-mounted1
    • Skid plates:
      • Help protect the front underbody, oil pan and transfer case
      • May require additional optional equipment
    • AT4 Preferred Package:
      • Universal Home Remote
      • Rear sliding power window
      • LED roof marker lamps
    • Gooseneck Hitch Package:
      • Gooseneck ball
      • Chain tiedown kit with case
      • May require additional optional equipment
    • ProGrade Trailering System:
      • Hitch Guidance with Hitch View
      • In-vehicle Trailering App
    • Sierra HD Pro Safety:
      • Forward Collision Alert1
      • Following Distance Indicator1
      • Front Pedestrian Braking1
      • IntelliBeam
      • Lane Departure Warning1
      • Buckle to Drive
      • Automatic Emergency Braking1
    • Trailering Package:
      • Trailer hitch1
      • Trailering hitch platform
      • Includes a 2.5" receiver hitch (with 2" insert), 4-pin and 7-pin connectors
      • 7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle
      • Hitch Guidance2
      • May require additional optional equipment
    • X31 Off-Road Package:
      • Off-Road suspension
      • Hill Descent Control
      • Skid plates
      • Twin-tube Rancho shocks
    • Trailering Information Label:
      • Provides max trailer ratings for tongue weight, conventional, gooseneck hitch and 5th wheel hitch
    • LED Daytime Running Lamps
    • Signature LED Daytime Running Lamps
    • 6 airbags:
      • Dual-stage frontal airbags for driver and front outboard passenger1
      • Seat-mounted side-impact airbags for driver and front outboard passenger1
      • Head-curtain airbags for outboard seating positions1
      • Includes front outboard Passenger Sensing System for frontal outboard passenger airbag and illuminates a status light that indicates whether the airbag is on or off1
    • Bed View Camera:
      • Camera in the Center High Mount Stop Lamp (CHMSL) provides an elevated view of the truck bed from the back of the cab1
      • Allows driver to see inside the cargo bed on the infotainment display to help with 5th wheel or gooseneck hitching and to check cargo
      • Includes 2 Trailer Camera Provisions
      • May require additional optional equipment
    • Buckle to Drive:
      • Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled
      • The feature also reminds the front passenger to buckle up, if equipped
    • Following Distance Indicator:
      • Displays the following time in seconds between your vehicle and a detected vehicle in front of you1
      • Designed to help you maintain a safe following distance
    • Forward Collision Alert:
      • Warns you if it detects a potential collision with a detected vehicle you're following so you can take action1
      • Can also provide a tailgating alert if you're following a vehicle much too closely
    • Front Pedestrian Braking:
      • At speeds between 5 and 50 mph, can help you avoid or reduce the severity of a collision with a pedestrian it detects directly in front of you1
      • Provides pedestrian alerts and can automatically provide hard emergency braking or enhance driver's hard braking
      • Limited nighttime and low visibility performance
    • Front and Rear Park Assist:
      • Provides alerts of nearby detected vehicles and objects in front of or behind your vehicle1
      • These can help you park and avoid collisions
      • May require additional optional equipment
    • HD Surround Vision:
      • Provides selectable digital camera views of the area around your vehicle1
      • Can help you park or avoid vehicles and objects
      • You can also display a guideline to show where your vehicle is heading
      • Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly
      • Requires Auxiliary Trailer Camera if one of the following camera views is desired: Transparent Trailer, Rear Trailer View, Picture-in-Picture or Inside Trailer View
      • May require additional optional equipment
    • Hitch Guidance:
      • When in Reverse, displays a centered guideline on the Rear Vision Camera view1
      • Can help you line up the hitch to your trailer
      • When driving, lets you check the trailer using Rear Vision Camera view
    • Hitch View:
      • Shows a close-up view of the trailer hitch1
      • In Reverse, the view can be used to line up your hitch to your trailer
      • When driving, the view can be used to check your trailer hitch
      • Shifting to Park automatically engages the Electric Parking Brake (if equipped)
      • May require additional optional equipment
    • Lane Departure Warning:
      • Alerts you when it detects that you are unintentionally drifting out of detected lane lines1
      • System alerts do not occur if you're using your turn signal, or it detects you may be intentionally leaving your lane
    • OnStar Basics:
      • Drive confidently with core OnStar services including1
        • Remote commands
        • Built-in voice assistance
        • Real-time traffic and navigation
        • Automatic Crash Response to help if you're in need
    • OnStar® services capable:
      • See onstar.com for details and limitations. Services vary by model. Service plan required.
    • Rear Cross Traffic Alert:
      • When in Reverse, warns you of detected vehicles crossing behind you1
      • May require additional optional equipment
    • Rear Seat Belt Indicator
    • Rear Seat Reminder:
      • Helps to remind the driver to check the back seat(s) before leaving the vehicle1
      • Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
      • Under certain conditions, once the vehicle is switched off, designed to sound audible chimes and display a visual message within the driver display
      • Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
    • Safety Alert Seat:
      • Uses left-, right- or both-side driver seat vibration pulses to help you detect and identify the direction of potential crashes1
      • You can also switch to beeping crash avoidance alerts
      • May require additional optional equipment
    • Seat Belt Adjustable Guide Loops:
      • Front row only
    • Teen Driver:
      • Helps encourage safe driving habits for teens by providing an in-vehicle report card1
      • Activates certain safety systems, if equipped, when a Teen Driver-designated key fob is used
      • Mutes the radio until the front-seat occupants fasten their seat belts
    • Tire Pressure Monitoring System with Tire Fill Alert:
      • Monitors tire pressure and alerts of an under-inflated condition in one or more of the tires1
      • Provides visual and audible alerts outside the vehicle when inflating an under inflated tire to the recommended tire pressure
    • Trailer Side Blind Zone Alert:
      • Provides visual side-mirror alerts when a moving vehicle is detected in a side blind zone that is extended to trailer lengths1
      • May require additional optional equipment
    • Trailering camera provisions:
      • Includes connector for accessory wiring harness
    • Automatic Emergency Braking:
      • Can help you avoid or reduce the severity of a collision with a detected vehicle you're following using camera technology1
      • Can automatically provide hard emergency braking or enhance your hard braking
      • Works at speeds between 5 and 50 mph
    • Hill Descent Control:
      • Uses antilock braking to help provide a smooth, controlled descent
      • Helps driver maintain control of the vehicle without depressing the brake pedal
      • Activates by pushing a button below the instrument panel
      • May require additional optional equipment
    • StabiliTrak, electronic stability control system with traction control:
      • Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path
      • Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling
      • Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads
      • Includes Brake Assist which detects rapid brake pedal applications due to emergency braking situations and provides additional braking via the Antilock Brake System (ABS) module
      • Includes Trailer Sway Control
      • Hill Start Assist
    Estimated Vehicle Delivery Date: 08-03-2026

    Experience unmatched power and advanced capability in this new White 2026 GMC Sierra 3500 HD 4WD Crew Cab AT4, with only 5 miles on the odometer. Under the hood, the Duramax 6.6L Biodiesel Turbo V8 delivers 470hp and 975 lb-ft of torque, paired with an Allison 10-speed automatic transmission and robust 4X4 system. Tackle any job with the Gooseneck/5th Wheel Prep Package, ProGrade Trailering System, Class IV tow rating, and integrated trailer brake controller. The AT4 Off-Road Package includes off-road suspension, skid plates, and hill descent control for confident adventures. Step inside to front bucket leather seats with 10-way power adjustments, heated/ventilated surfaces, and a heated steering wheel. Stay connected with the 13.4" touchscreen GMC Infotainment System, Bose Premium 7-speaker audio, wireless phone projection, and onboard Wi-Fi. Safety is prioritized with HD Surround Vision, Forward Collision Alert, Lane Departure Warning, Automatic Emergency Braking, and Sierra HD Pro Safety features. Enjoy convenience with keyless entry/start, remote start, power sliding rear window, spray-on bedliner, and MultiPro Tailgate. With bold 20" black aluminum wheels, LED lighting, and integrated bed steps, this Sierra 3500 HD AT4 stands ready for work or play.

    All Pricing and Advertised Prices for any/all vehicles offered for sale do not include the optional protection package which can be purchased for an additional cost. Available optional protection packages include KARR Security System $995, NOMAD Protection $1,195, GMP Theft $899, Forever Start Lifetime Unlimited $799, ClearPRO Door Protection up to $795. Net Cost includes a Factory Rebate, if applicable, on this vehicle and is valid on a cash or financed purchase only by an individual for their personal use. The Net Cost does not apply to a lease. Leasing & financing available on approved credit. Trade-ins accepted. Subject to prior sale. The Factory Rebates may not be available on this vehicle if you elect to take advantage of a Special Alternative APR or Special Lease program. Some Factory Rebates are California Resident specific and may vary for residents of other states. 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 Documentation Fee and $37 Electronic Filing Fee. Prices are plus government fees and taxes, any finance charges, any emission testing charge and $1.75 per new tire state tire fee. We make every effort to provide accurate information, but please verify before purchasing. 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. Images are for illustrative purposes only.

    Serving Tustin, Santa Ana, Orange, Irvine, Villa Park, Anaheim Hills, Costa Mesa, Walnut, Huntington Beach, Garden Grove, Aliso Viejo, Laguna, Anaheim, Orange County, Lake Forest, Laguna Nigel, Laguna Hills, and Newport Beach.

    Price includes: $1000 - Buick & GMC Consumer Cash Program 26-40ACB-010 (Exp. 08/03/2026), $122 - Doc Fee
    Price expires at the end of the day on:

    Wed Mar 22 2023

    KBB.com Consumer Reviews

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        *All Pricing and Advertised Prices for any/all vehicles offered for sale do not include the optional protection package which can be purchased for an additional cost. Available optional protection packages include KARR Security System $995, NOMAD Protection $1,195, GMP Theft $899, Forever Start Lifetime Unlimited $799, ClearPRO Door Protection up to $795. 

        *Net Cost includes a Factory Rebate, if applicable, on this vehicle and is valid on a cash or financed purchase only by an individual for their personal use. The Net Cost does not apply to a lease. Leasing & financing available on approved credit. Trade-ins accepted. Subject to prior sale. The Factory Rebates may not be available on this vehicle if you elect to take advantage of a Special Alternative APR or Special Lease program. Some Factory Rebates are California Resident specific and may vary for residents of other states. 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 Documentation Fee and $37 Electronic Filing Fee. Prices are plus government fees and taxes, any finance charges, any emission testing charge and $1.75 per new tire state tire fee. We make every effort to provide accurate information, but please verify before purchasing. 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. Images are for illustrative purposes only.

        *MSRP is not the dealer's advertised or asking price. In some instances, vehicles will sell above the MSRP.

        *Policy on Hand Control Driving Devices
        To accommodate our customers, Dealer will install portable hand control units that the customer provides to Dealer in order to test drive a vehicle, so long as the device can be installed and removed without physical modification or alteration to the vehicle. If the customer does not have a portable vehicle hand control unit, Dealer will provide one. For the safety of our customers and employees, these hand control units are installed at our service department. Appointments for a vehicle test drive using a hand control device are strongly recommended to ensure that a licensed technician is available to install the hand control device and to conduct a safety test before the customer test drive. Any questions regarding this policy, please contact the General Manager.