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New 2026 GMC Sierra 2500 HD AT4
In-Transit
In-Transit

This unit is currently in-transit and is estimated to be available at the Dealership as noted. Please contact Dealer for more specific delivery information.11/24/25

VIN 1GT4UPEYXTF152544 Stock Number 3260131

  • MSRP $88,160
  • Net Cost $87,660
See Important Disclosures Here

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Dealership Photos
2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
    2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
      2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
        2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
          2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
            2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
              2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                  2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                    2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                      2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                        2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                          2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                            2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                              2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                  2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                    2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                      2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                        2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                          2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                            2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                              2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                                2026 GMC Sierra 2500 HD Vehicle Photo in HEALDSBURG, CA 95448-3401
                                                  Current Offers Specifications
                                                  • MSRP $88,160
                                                  • Purchase Allowance 1
                                                    25-40ACB-11: Purchase Allowance
                                                    - $500 Take Retail Delivery By 11-03-2025
                                                  • Net Cost $87,660
                                                  • 4.9% APR for 48 Months for Well-Qualified Buyers When Financed w/ GM Financial 2
                                                    25-40G-12: For Well-Qualified Buyers When Financed w/ GM Financial
                                                    Take Retail Delivery By 11-03-2025
                                                  Click here for more offer information
                                                  1Not available with special financing, lease and some other offers. Must take new retail delivery by 11/03/2025. 24.9% APR for 48 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $22.98 for every $1000 you finance. Average example down payment is 10.0%. Not available with leases and some other offers. Must take new retail delivery by 11/03/2025.
                                                  This unit is currently in-transit and is estimated to be available at the Dealership as noted. Please contact Dealer for more specific delivery information.11/24/25
                                                  Specifications
                                                  • Stock Number 3260131
                                                  • Exterior Onyx Black
                                                  • Interior Jet Black With Kalahari Accents
                                                  • VIN 1GT4UPEYXTF152544
                                                  • Engine Duramax 6.6L V8 Turbodiesel
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                                                                    Vehicle At A Glance

                                                                    • Fuel Economy * N/A city / N/A hwy
                                                                    • Mileage N/A
                                                                    • Transmission Automatic
                                                                    • Exterior Color Onyx Black
                                                                    • Interior Color Jet Black With Kalahari Accents
                                                                    • Engine Data Duramax 6.6L V8 Turbodiesel

                                                                      Vehicle Description

                                                                      2026 GMC Sierra 2500HD AT4


                                                                      10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.

                                                                      4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel

                                                                      Recent Arrival!


                                                                      Your family store since '54! Price includes all applicable rebates, other rebates may be available: $500 - Buick & GMC Consumer Cash Program. Exp. 11/03/2025

                                                                        Specifications

                                                                        Exterior
                                                                        • 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
                                                                        • Deep-tinted glass, Provides added protection from sun and glare
                                                                        • Body-color door handles
                                                                        • Rainsense automatic wipers, When turned on, will automatically clear the windshield when sensors detect varying degrees of precipitation on the windshield
                                                                        • 20" high gloss Black aluminum wheels
                                                                        • 18" LT275/70R18 all-terrain, blackwall spare tire, May require additional optional equipment
                                                                        • Cargo bed LED lighting, Provides light to find cargo in the bed May require additional optional equipment
                                                                        • Black beltline moldings
                                                                        • Cab-mounted cargo area lamps, Activated by switch located on center switch bank Illuminates the cargo bed area
                                                                        • Spare tire carrier lock, Helps keep spare tire secure
                                                                        • Outside power-adjustable vertical trailering mirrors with power folding/extending auto-dimming driver and passenger upper glass, Chrome mirror caps AT4 and AT4X 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
                                                                        • High gloss Black mirror caps
                                                                        • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
                                                                        • 20" LT275/65R20 all-terrain, blackwall tires
                                                                        • Body-color front bumper
                                                                        • IntelliBeam, At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions
                                                                        • Cargo tie-downs, 12-fixed rated at 500 lbs. per corner
                                                                        • Animated LED Signature Tail lamps with Stop, turn and Reverse lamps, LED taillamps with LED stop lights and animation
                                                                        • 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
                                                                        • 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
                                                                        • Tailgate with EZ Lift assist, power lock & release, Hitch area lighting May require additional optional equipment
                                                                        • Tailgate and bed rail protection caps
                                                                        • 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
                                                                        • 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
                                                                        • LED fog lamps
                                                                        • Body-color rear bumper, With integrated CornerSteps
                                                                        • Winter Grille Cover, May require additional optional equipment
                                                                        • Off-Road High Clearance Steps, Steps make it easier to get in and out of your truck Textured step pads help provide secure footing May require additional optional equipment
                                                                        • Power sunroof, Opens over the first row at the push of a button Retracts into the roof Offers tilt and slide features with express-open and -close May require additional optional equipment
                                                                        • Front license plate bracket, Front bracket is included if displaying a front license plate is required in your state
                                                                          Interior
                                                                          • Rear air vents, Provides cabin comfort for rear occupants
                                                                          • 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
                                                                          • 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.
                                                                          • Carpeted floor covering, Color-keyed to match the interior
                                                                          • 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
                                                                          • 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
                                                                          • 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
                                                                          • 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
                                                                          • Driver memory, Press memory button 1 or 2 to program and recall preferences May require additional optional equipment
                                                                          • 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
                                                                          • 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) Data/charge ports located inside center console¹
                                                                          • 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
                                                                          • 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)
                                                                          • 10-way power driver seat with power lumbar, Includes 8-way power driver seat Includes a 2-way power lumbar control
                                                                          • Premium front floor liners with removable carpet insert
                                                                          • 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
                                                                          • Assist handles, Front A-pillar mounted for Driver and Passenger Rear B-pillar mounted
                                                                          • Front bucket seats, May require additional optional equipment
                                                                          • USB ports, (2) Charge ports located on rear of console¹
                                                                          • Steering-wheel mounted controls, Allow the driver to easily operate the audio system and phone interface controls May require additional optional equipment
                                                                          • 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
                                                                          • 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
                                                                          • Wireless Charging, Uses induction technology for select portable electronic devices¹ Convenient charging location Customers can charge their smartphones while they drive without connecting to any cables May require additional optional equipment
                                                                          • Compass, Located in instrument cluster
                                                                          • 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
                                                                          • 10-way power front passenger seat, Includes 8-way power front passenger seat Includes a 2-way power lumbar control
                                                                          • Premium rear floor liners with removable carpet insert
                                                                          • USB ports, (2) First row, located on console¹
                                                                          • 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
                                                                          • 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)
                                                                          • Power windows with rear express-down
                                                                          • 120-volt box-mounted power outlet, 3-prong auxiliary household-style outlet Located in the pickup bed May require additional optional equipment
                                                                          • Wrapped steering wheel
                                                                          • 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
                                                                          • Rear window defogger, Utilizes a warming grid to help remove fog or frost from the rear window
                                                                          • Outside temperature display, Located in infotainment display
                                                                          • Front center console, Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity 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 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
                                                                          • Head-Up Display, Projects vehicle information onto the windshield low in the driver's line of sight to help you keep your eyes on the road¹ Multi-color 15" diagonal Head-Up Display Can select key vehicle information to display including an off-road inclinometer Adjustable vertical position and brightness of the display May require additional optional equipment
                                                                          • 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
                                                                          • Rear Camera Mirror, Uses a camera to provide you with the option of using a wide and less obstructed view behind your vehicle while driving instead of a traditional rearview mirror¹ The feature also allows brightness, vertical tilt and zoom adjustments May require additional optional equipment
                                                                          • 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
                                                                            Entertainment
                                                                            • Wireless phone projection, For Apple CarPlay™¹ and Android Auto™²
                                                                            • Wi-Fi® Hotspot capable, Terms and limitations apply. See onstar.com or dealer for details. 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
                                                                            • 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
                                                                            • 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
                                                                              Mechanical
                                                                              • 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
                                                                              • Heavy-Duty Air Filter, Thick construction helps to trap more dirt before it can enter the air intake
                                                                              • 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
                                                                              • External engine oil cooler, Heavy-duty air-to-oil cooler Helps extend engine oil life under heavy loads
                                                                              • Off-Road suspension, May require additional optional equipment
                                                                              • Brake pad wear indicator
                                                                              • Fully boxed frame, Hydroformed front section High-strength steel
                                                                              • Push Button Start
                                                                              • 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
                                                                              • Red vertical recovery hooks, Two front frame-mounted¹
                                                                              • 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
                                                                              • Air filtration monitoring, Alerts the driver when the engine air filter needs replacement
                                                                              • Pickup bed, Roll-formed high-strength steel Includes bed assist step
                                                                              • Digital Variable Steering Assist, This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue
                                                                              • Skid plates, Help protect the front underbody, oil pan and transfer case 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
                                                                              • 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
                                                                              • 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
                                                                              • 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
                                                                              • Engine block heater, Helps ease cold weather starts Heats the engine and engine block fluids
                                                                              • 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
                                                                              • Heavy-duty dual batteries with 1460 cold-cranking amps, 70 Amp-hr Maintenance-free with rundown protection and retained accessory power May require additional optional equipment
                                                                              • 11,350 lbs. GVWR, When properly equipped; includes weight of vehicle, passengers, cargo and equipment
                                                                              • 220-amp alternator, May require additional optional equipment
                                                                              • 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
                                                                              • Capped fuel fill, Requires diesel engine or pickup bed delete
                                                                              • 3.42 rear axle ratio, Requires a diesel engine
                                                                                Safety
                                                                                • 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
                                                                                • 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
                                                                                • Trailering Information Label, Provides max trailer ratings for tongue weight, conventional, gooseneck hitch and 5th wheel hitch
                                                                                • 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
                                                                                • Seat Belt Adjustable Guide Loops, Front row only
                                                                                • LED Daytime Running Lamps
                                                                                • HD Surround Vision, Provides selectable digital camera views of the area around your vehicle¹ Can help you park or avoid vehicles and objects¹ You can also display a guideline to show where your vehicle is heading¹ 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
                                                                                • 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
                                                                                • 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
                                                                                • Rear Cross Traffic Alert, When in Reverse, warns you of detected vehicles crossing behind you¹ May require additional optional equipment
                                                                                • OnStar Basics, Drive confidently with core OnStar services including¹ Remote commands Built-in voice assistance Real-time traffic and navigation Automatic Crash Response
                                                                                • Signature LED Daytime Running Lamps
                                                                                • 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
                                                                                • 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
                                                                                • 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
                                                                                • 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
                                                                                • 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
                                                                                • 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
                                                                                • Trailering camera provisions, Includes connector for accessory wiring harness
                                                                                • 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
                                                                                • 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
                                                                                • OnStar® services capable, See onstar.com for details and limitations. Services vary by model. Service plan required.
                                                                                • Rear Seat Belt Indicator
                                                                                • 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
                                                                                • 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
                                                                                  Package
                                                                                  • ProGrade Trailering System, Hitch Guidance with Hitch View In-vehicle Trailering App
                                                                                  • X31 Off-Road Package, Off-Road suspension Hill Descent Control Skid plates Twin-tube Rancho shocks
                                                                                  • 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
                                                                                  • Sierra HD Pro Safety, Forward Collision Alert¹ Following Distance Indicator¹ Front Pedestrian Braking¹ IntelliBeam Lane Departure Warning¹ Buckle to Drive Automatic Emergency Braking¹
                                                                                  • AT4 Preferred Package, Universal Home Remote Rear sliding power window LED roof marker lamps
                                                                                  • AT4 Premium Plus Package, AT4 Preferred Package Power sunroof Technology Package AT4 high clearance step May require additional optional equipment
                                                                                  • Technology Package, Rear Camera Mirror¹ Multi-color 15" Diagonal Head-Up Display AT4 Preferred Package on AT4 May require additional optional equipment
                                                                                    Warranty
                                                                                    • Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
                                                                                    • Roadside Assistance: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
                                                                                    • Drivetrain: 5 Years/60,000 Miles, 3.0L & 6.0L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
                                                                                    • Warranty: <<< Preliminary 2026 Warranty >>>
                                                                                    • Basic: 3 Years/36,000 Miles
                                                                                    • Maintenance: First Visit: 12 Months/12,000 Miles
                                                                                      Options
                                                                                      • Rear axle, 3.42 ratio
                                                                                      • Onyx Black
                                                                                      • GVWR, 11,350 lbs. (5148 kg)
                                                                                      • Engine, Duramax 6.6L Turbo-Diesel V8, B20-Diesel compatible
                                                                                      • AT4 Premium Plus Package
                                                                                      • Emissions, California state requirements
                                                                                      • Transmission, 10-speed automatic

                                                                                        Purchase Inquiry

                                                                                        Silveira Healdsburg
                                                                                        985 HEALDSBURG AVE HEALDSBURG CA 95448-3401 US
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                                                                                            All Vehicles Not available with special finance or lease offers.* Price includes applicable rebates please see dealer for details. Prices do not include government fees and taxes, any finance charges, any dealer document processing charge, any electronic filing charge and any emission testing charge. 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. Your actual price is subject to change based on current manufacturer pricing at time of delivery. Please verify any information in question with Silveira Automotive Group. All prices plus government fees and taxes, any finance charges, dealer document preparation charge, and tire recycling fee. Picture may not represent actual vehicle. See Dealer for in-stock inventory & actual selling price. Dealer trade fee may apply. Vehicle may be in transit. Contact dealer to confirm availability date. All Vehicles MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the “Fuel Economy” portion of the EPA’s website for details, including a MPG recalculation tool). The features and options listed are for the new 2026 GMC Sierra 2500 HD and may not apply to this specific vehicle.

                                                                                            New 2026 Black GMC AT4 Sierra 2500 HD for Sale in Sonoma County, VIN = 1GT4UPEYXTF152544

                                                                                            If you're looking for a GMC Sierra 2500 HD for sale in Sonoma County come to Silveira Healdsburg to buy or lease this Sierra 2500 HD.

                                                                                            Silveira Healdsburg has it for sale, and we have great lease deals on it too. Find a Sierra 2500 HD in the color and with the options you're looking for.

                                                                                            See above for more information and call us at (877) 891-4352 so we can answer any questions or to schedule a test drive.