Used 2026 GMC Sierra 2500HD 4WD AT4 For Sale in Vacaville

2026 GMC Sierra 2500HD AT4 | Duramax Diesel, 4WD, Allison | Vacaville CA Looking for a heavy-duty pickup near Vacaville, Fairfield, Vallejo, Napa, Sacramento, Davis, Woodland, Dixon, Benicia, or American Canyon? This Sierra 2500HD AT4 offers Duramax diesel power, off-road capability, advanced trailering technology, and premium comfort. Finished in Titanium Rush Metallic with a Jet Black interior featuring Kalahari Accents, this truck is powered by a 6.6L Duramax turbo-diesel paired with an Allison 10-speed automatic transmission and 4WD. Original MSRP was $84,680. Highlights No accidents or damage reported to CARFAX 15,871 miles CARFAX 1-Owner rental vehicle 1 service history record No open recalls reported Last owned in Utah Basic warranty estimated to remain active Performance 6.6L Duramax turbo-diesel Allison 10-speed automatic transmission Two-speed Autotrac transfer case Automatic locking rear differential Off-Road and Tow/Haul modes Trailer brake controller All-terrain tires 11,350-pound GVWR Technology & Comfort 13.4-inch GMC infotainment touchscreen Google Built-In with navigation capability Wireless Apple CarPlay and Android Auto Bose premium sound system 12.3-inch Driver Information Center Heated and ventilated front seats Heated rear outboard seats Heated steering wheel GMC MultiPro Tailgate Power-folding and extending trailer mirrors Safety Features Automatic Emergency Braking Forward Collision Alert Front Pedestrian Braking Lane Departure Warning HD Surround Vision Trailer Side Blind Zone Alert Rear Cross Traffic Alert Front and rear parking sensors Vehicle History CARFAX reports one Utah rental owner, one service record, and no accidents or damage. No total loss, structural damage, airbag deployment, or odometer rollback is reported. No negative title brands or open recalls are reported. A pre-delivery inspection was completed at three miles. CARFAX reports the vehicle was sold at auction in August 2026. Available now at GMC of Vacaville, proudly serving Vacaville, Fairfield, Vallejo, Napa, Sacramento, Davis, Woodland, Dixon, Benicia, and American Canyon. Call or text 707-474-4890 today to schedule your test drive. 2026 GMC Sierra 2500HD AT4 | Diesel Duramax, 4WD y Allison | Vacaville CA Busca una pickup de trabajo pesado cerca de Vacaville, Fairfield, Vallejo, Napa, Sacramento, Davis, Woodland, Dixon, Benicia o American Canyon? Esta Sierra 2500HD AT4 ofrece potencia diesel, capacidad todoterreno, tecnologia de remolque y comodidad premium. Terminada en Titanium Rush Metallic con interior Jet Black y detalles Kalahari, cuenta con motor Duramax turbodiesel de 6.6L, transmision Allison automatica de 10 velocidades y traccion 4WD. MSRP original de $84,680. Destacados Sin accidentes ni danos reportados a CARFAX 15,871 millas Un propietario de uso de alquiler 1 registro de servicio Sin llamados a revision abiertos Ultimo propietario en Utah Equipo Motor Duramax turbodiesel de 6.6L Transmision Allison de 10 velocidades Traccion 4WD Diferencial trasero con bloqueo Modos Off-Road y Tow/Haul Controlador de frenos de remolque Pantalla de 13.4 pulgadas Google Built-In Apple CarPlay y Android Auto inalambricos Audio Bose premium Asientos con calefaccion y ventilacion GMC MultiPro Tailgate Seguridad Frenado automatico de emergencia Alerta de colision frontal Frenado para peatones Alerta de salida de carril Vision HD de 360 grados Monitoreo de punto ciego para remolque Alerta de trafico cruzado Sensores de estacionamiento CARFAX reporta un propietario de uso de alquiler en Utah, un registro de servicio y ningun accidente o dano. No reporta perdida total, dano estructural, bolsas de aire

• Emissions, federal requirements
• Gvwr, 11,350 lbs. (5148 kg)
• At4 preferred equipment group
• Tires, lt275/65r20 all-terrain, blackwall
• Seats, front bucket
• Audio system, 13.4" diagonal premium gmc infotainment system with google built in apps such as navigation and voice assistance
• Alternator, 220 amp
• Winter grille cover
• Preferred Equipment Group 4SB
• 7 Speakers
• Bose Premium 7-Speaker Sound System
• Radio: AM/FM Stereo with Premium GMC Infotainment System
• Steering Wheel Audio Controls
• Automatic temperature control
• Front dual zone A/C
• 120-Volt Bed Mounted Power Outlet
• Driver Memory
• Power driver seat
• Power windows
• Remote keyless entry
• Steering wheel mounted audio controls
• Off-Road Suspension
• Traction control
• ABS brakes
• Dual front side impact airbags
• Front anti-roll bar
• Keyless Open and Start
• Occupant sensing airbag
• Pickup Box
• Electronic Stability Control
• Hill Descent Control
• Delay-off headlights
• Fully automatic headlights
• Security system
• Speed control
• 220-Amp Alternator
• Exhaust Brake
• Auto-dimming door mirrors
• Front License Plate Kit
• Heated door mirrors
• LED Cargo Area Lighting
• Rear step bumper
• Spray-on Pickup Bedliner with GMC Logo
• Winter Grille Cover
• 2 Charge/Data USB Ports Inside Center Console
• Apple CarPlay/Android Auto
• Automatic Emergency Braking
• Buckle to Drive
• Driver door bin
• Floor-Mounted Center Console
• Forward Collision Alert
• Front Premium Floor Liners with Removable Carpet Insert
• HD Surround Vision
• Illuminated entry
• Outside temperature display
• Passenger vanity mirror
• Rear Premium Floor Liners with Removable Carpet Insert
• Rear seat center armrest
• Telescoping steering wheel
• Trailer Cam Provisions and Trailer Viewing Software
• Trip computer
• Voltmeter
• Wireless Phone Projection
• 10-Way Power Passenger Seat Adjuster with Lumbar
• Front Center Armrest
• Heated Driver and Front Outboard Passenger Seats
• Heated rear seats
• Power passenger seat
• Split folding rear seat
• Ventilated front seats
• Hitch Guidance with Hitch View
• Alloy wheels
• Deep-Tinted Glass
• Power Front Passenger Windows with Express Up/Down
• Variably intermittent wipers
• ALTERNATOR 220 AMP
• GVWR 11 350 LBS. (5148 KG)
• JET BLACK WITH KALAHARI ACCENTS PERFORATED FRONT LEATHER SEAT TRIM
• WINTER GRILLE COVER
• AUDIO SYSTEM 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE includes color touch-screen multi-touch display AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones (STD)
• AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
• REAR AXLE 3.42 RATIO
• EXHAUST BRAKE
• Front Collision Mitigation
• Automatic Highbeams
• Running Boards/Side Steps
• Locking/Limited Slip Differential
• Tow Hooks
• ABS
• Aluminum Wheels
• Tires - Rear All-Terrain
• Bed Liner
• Automatic Highbeams
• Heated Mirrors
• Integrated Turn Signal Mirrors
• Privacy Glass
• Variable Speed Intermittent Wipers
• Integrated Tailgate Step
• Navigation System
• Bluetooth Connection
• Smart Device Integration
• Satellite Radio
• Premium Sound System
• Bluetooth Connection
• WiFi Hotspot
• Leather Seats
• Power Driver Seat
• Power Passenger Seat
• Heated Front Seat(s)
• Cooled Front Seat(s)
• Mirror Memory
• Floor Mats
• Heated Steering Wheel
• Adjustable Steering Wheel
• Power Windows
• Power Door Locks
• Power Door Locks
• Remote Engine Start
• Adaptive Cruise Control
• MP3 Capability
• MP3 Capability
• Climate Control
• Rear Defrost
• Front Collision Mitigation
• Front Collision Warning
• Stability Control
• Daytime Running Lights
• Passenger Air Bag
• Front Head Air Bag
• Passenger Air Bag Sensor
• Requires Subscription
• Back-Up Camera
• Back-Up Camera
• Lane Departure Warning
• Blind Spot Monitor
• Tire Pressure Monitor
• Telematics

• Transmission, 10-speed automatic
• Rear axle, 3.42 ratio
• Wheels, 20" (50.8 cm) high gloss black aluminum wheels
• Titanium rush metallic
• Jet black with kalahari accents, perforated front leather seat trim
• Engine block heater
• Exhaust brake
• License plate kit, front, incandescent lighting
• X31 Off-Road Package
• AM/FM radio: SiriusXM with 360L
• Premium audio system: Premium GMC Infotainment System
• SiriusXM with 360L Trial Subscription
• Air Conditioning
• Electric Rear-Window Defogger
• Rear window defroster
• 120-Volt Instrument Panel Power Outlet
• Memory seat
• Power steering
• Push Button Start
• Remote Vehicle Starter System
• Manual Tilt-Wheel/Telescoping Steering Column
• Speed-sensing steering
• 4-Wheel Disc Brakes
• Dual front impact airbags
• Emergency communication system: OnStar
• Front wheel independent suspension
• Low tire pressure warning
• Overhead airbag
• Brake assist
• Lane Departure Warning System
• Auto High-beam Headlights
• Front fog lights
• Panic alarm
• Unauthorized Entry Theft-Deterrent System
• 2-Speed Active Transfer Case
• Engine Block Heater
• Heavy-Duty 80 Amp Battery
• Bumpers: body-color
• Gloss Black Header Grille and Grille Insert Bars
• IntelliBeam Automatic High Beam on/Off
• Power door mirrors
• Rear Wheelhouse Liners
• Turn signal indicator mirrors
• 2 Charge-Only Rear USB Ports
• 2 USB Ports
• Auto-dimming Rear-View mirror
• Bed View Camera with Two Trailer Camera Provisions
• Compass
• Driver vanity mirror
• Following Distance Indicator
• Front Pedestrian Braking
• Front reading lights
• Heated steering wheel
• OnStar Services Capable
• Overhead console
• Rear Cross Traffic Alert
• Rear reading lights
• Tachometer
• Tilt steering wheel
• Trailer Side Blind Zone Alert
• Ultrasonic Front and Rear Park Assist
• Wireless Charging
• 10-Way Power Driver Seat Adjuster with Lumbar
• Front Bucket Seats
• Heated 2nd Row Outboard Seats
• Heated front seats
• Perforated Leather-Appointed Front Seat Trim
• Safety Alert Seat
• Ventilated Driver and Front Passenger Seats
• Passenger door bin
• in-Vehicle Trailering System App
• Wheels: 20" High Gloss Black 8 Spokes Aluminum
• Front Rain-Sensing Wipers
• Rain sensing wipers
• WHEELS 20" (50.8 CM) HIGH GLOSS BLACK ALUMINUM WHEELS 8 spokes (STD)
• TIRES LT275/65R20 ALL-TERRAIN BLACKWALL (STD)
• TRANSMISSION 10-SPEED AUTOMATIC
• ENGINE DURAMAX 6.6L TURBO-DIESEL V8 B20-DIESEL COMPATIBLE (470 hp [350.5 kW] @ 2800 rpm 975 lb-ft of torque [1322 Nm] @ 1600 rpm) (Includes (K05) engine block heater.)
• ENGINE BLOCK HEATER
• SEATS FRONT BUCKET with center console (STD)
• LICENSE PLATE KIT FRONT INCANDESCENT LIGHTING
• TITANIUM RUSH METALLIC
• Lane Departure Warning
• Front Collision Warning
• Tow Hitch
• Keyless Start
• Four Wheel Drive
• Power Steering
• 4-Wheel Disc Brakes
• Tires - Front All-Terrain
• Conventional Spare Tire
• Daytime Running Lights
• Fog Lamps
• Power Mirror(s)
• Power Folding Mirrors
• Intermittent Wipers
• Rain Sensing Wipers
• AM/FM Stereo
• MP3 Capability
• Auxiliary Audio Input
• Requires Subscription
• Requires Subscription
• Bluetooth Connection
• Smart Device Integration
• Bucket Seats
• Rear Bench Seat
• Driver Adjustable Lumbar
• Passenger Adjustable Lumbar
• Heated Front Seat(s)
• Heated Rear Seat(s)
• Seat Memory
• Floor Mats
• Steering Wheel Audio Controls
• Power Windows
• Power Windows
• Keyless Entry
• Keyless Start
• Cruise Control
• Security System
• Auxiliary Audio Input
• Auxiliary Audio Input
• Multi-Zone A/C
• Auto-Dimming Rearview Mirror
• Front Collision Mitigation
• Traction Control
• Daytime Running Lights
• Driver Air Bag
• Front Side Air Bag
• Rear Head Air Bag
• Telematics
• Rear Parking Aid
• Aerial View Display System
• Front Collision Warning
• Cross-Traffic Alert
• Driver Restriction Features
• Navigation System
• Requires Subscription

• Adaptive Cruise Control
• Air vents, rear
• Audio System, 13.4" diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance includes color touch-screen, multi-touch display, AM/FM stereo, Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
• Bose Sound System, premium 7-speaker system with Richbass woofer
• Compass, located in instrument cluster
• Door locks, power
• Driver memory recalls driver "presets" for power driver seat and outside mirrors
• Floor covering, color-keyed carpeting
• Keyless Open and Start includes remote keyless entry
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
• Premium Floor Liners with removable carpet insert, front
• Rear Seat Reminder
• Seat adjuster, driver 10-way power including lumbar
• Seat trim, Perforated front Leather
• Seating, heated driver and front outboard passenger
• Seats, heated second row outboard seats
• SiriusXM Trial Subscription
• Steering column, manual Tilt-Wheel and telescoping
• Steering wheel, heated
• Theft-deterrent system, unauthorized entry
• USB Ports, 2 (first row) located on console
• Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
• Windows, power front, drivers express up/down
• Wireless Charging

• Air conditioning, dual-zone automatic climate control
• Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
• Bluetooth for phone connectivity to vehicle infotainment system
• Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
• Defogger, rear-window electric
• Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
• Exterior Temperature Display, located in radio display
• GMC Premium information Display- 13.4" diagonal Multicolor touch screen
• Mirror, inside rearview auto-dimming
• Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• Premium Floor Liners with removable carpet insert, rear
• Remote vehicle starter system
• Seat adjuster, passenger 10-way power including lumbar
• Seat, Up-level Rear with Storage Package 60/40 folding bench, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
• Seats, front bucket with center console
• Seats, ventilated driver and front passenger
• SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy, visit siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
• Steering wheel audio controls
• Steering wheel, wrapped
• USB ports, (2) charge-only, rear
• USB Ports, 2, Charge/Data ports located inside center console
• Window, power front, passenger express up/down
• Windows, power rear, express down
• Wireless phone projection for Apple CarPlay and Android Auto

• Air filter, heavy-duty
• Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
• Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Cooling, auxiliary external transmission oil cooler
• Four wheel drive
• GVWR, 10,850 lbs. (4921 kg) (Included and only available with TK20743 model and (L8T) 6.6L V8 gas engine with 18", 20" or 22" wheels.)
• In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert when (PTT) trailer tire pressure monitor sensors are installed.)
• Push Button Start
• Recovery hooks, Red
• Steering, Digital Variable Steering Assist this system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
• Trailer brake controller, integrated
• Transmission, 10-Speed automatic

• Air filtration monitoring
• Auto-locking rear differential
• Brake lining wear indicator
• Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine.)
• Cooling, external engine oil cooler
• Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
• Hill Descent Control
• Pickup bed includes bed assist step
• Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
• Skid Plates protect the oil pan, front axle and transfer case
• Suspension, Off-Road includes twin-tube shocks
• Transfer case, two-speed active, electronic Autotrac with push button control

• Airbags, dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
• Bed View Camera, camera in the CHMSL to show a view of the cargo bed display located in infotainment screen, includes Two Trailer Camera Provisions
• Daytime Running Lamps, LED signature lighting
• Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
• Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
• Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
• Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
• OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including select remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (Requires (UE1) OnStar. OnStar Basics includes select remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
• Rear Cross Traffic Alert
• Safety Alert Seat
• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
• Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
• Trailer Side Blind Zone Alert

• Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
• Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) Sierra HD Pro Safety.)
• Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
• Front and Rear Park Assist, ultrasonic
• HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a center stack display. Includes front camera washer.
• Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
• LED Signature DRL's
• OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
• Rear Seat Belt Indicator
• Seat Belt Adjustable Guide Loops, front row only
• Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
• Trailer Camera Provisions and trailer viewing software
• Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering

• Bed Step, Black integrated on forward portion of bed on driver and passenger side
• Bumper, front, body-color lower
• Cargo tie downs (12), fixed, rated at 500 lbs per corner
• Door handles, body-color
• Glass, deep-tinted
• Headlamps, Animated LED projectors LED turn signals and Daytime Running Lamps
• Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
• Mirror caps, high gloss Black
• Moldings, beltline, Black
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
• Taillamps, Animated LED Signature Tail, Stop, turn and Reverse lamps
• Tire, spare LT275/70R18 all-terrain, blackwall
• Wheelhouse liners, rear
• Wipers, front rain-sensing

• Bedliner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Available with Ship Thru code (SQE), (TCE) or (TCH), not available with any other Ship Thru code.)
• Bumper, rear body-color with bumper CornerSteps
• CornerStep, rear bumper
• Fog lamps, LED
• Grille (Gloss Black header and grille insert bars with Black Chrome accents.)
• IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
• LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
• Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger), lower convex mirrors, turn signal indicators, puddle lamps, (U12) perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) lighting
• Tailgate and bed rail protection caps, top
• Tailgate, GMC MultiPro Tailgate with six functional load/access features NOTE: Auto release can be disabled if ball hitch is installed. See Owner's manual for details
• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• Tires, LT275/65R20 all-terrain, blackwall
• Wheels, 20" (50.8 cm) High Gloss black aluminum wheels 8 spokes

• X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks

• ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (UET) In-vehicle Trailering App