2026 GMC Sierra 2500 HD SLE



In Stock
  • $13,545 SAVINGS
    $60,209 FINAL PRICE

  • MSRP: $73,135
  • -$8,045
  • VEHICLE SALE PRICE: $65,090
    • -$3,500
    • -$2,000
  • +$619
  • Dave Sinclair Sale Price: $60,209
  • Total Savings $13,545
  • *Please Note: We turn our inventory daily, please check with the dealer to confirm vehicle availability.

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Vehicle Information

VIN: 1GT5UMEY5TF372600
Stock #: T261821
  • Condition New
  • Body Style Double Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black, Cloth Seat Trim
  • Mileage 5
  • Engine 6.6L Duramax Turbo-Diesel V8 engine
  • Transmission Automatic
  • Fuel Type Diesel Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Thank you for choosing Dave Sinclair Buick GMC This 2026 GMC Sierra 2500HD SLE, has a Onyx Black exterior and a Jet Black interior. Please call us at (314) 272-4060 and reference stock number T261821 for further details. WHY THIS VEHICLE? SLE Convenience Package ($915 value)10-Way Power Driver Seat Adjuster with LumbarA/C with Dual-Zone Automatic Climate ControlManual Tilt-Wheel/telescoping Steering ColumnLED Fog LampsLED Smoked Amber Roof Marker LampsX31 Off-Road Package ($525 value)Hill Descent ControlSkid PlatesOff-Road SuspensionPreferred Equipment Group 3SASiriusXM with 360L Trial Subscription4-Way Manual Driver Seat AdjusterDeep-Tinted GlassKeyless Open and StartPush Button StartChrome Surround Grille with Chrome Insert Bars120-Volt Bed Mounted Power Outlet120-Volt Instrument Panel Power Outlet2-Speed Electronic Shift Transfer CaseSierra HD Pro SafetyWireless Phone Projection2 Charge-Only Rear USB Ports2 Charge/data USB PortsOnStar Services CapableSteering Wheel Audio ControlsRemote Start Package ($525 value)Remote Vehicle Starter SystemElectric Rear-Window DefoggerUnauthorized Entry Theft-Deterrent SystemSLE Heated Package ($400 value)Heated Driver and Front Outboard Passenger SeatsHeated Steering Wheel Safety and Security Forward collision mitigation - Forward thinking. You look away for just a second and suddenly the vehicle in front of you has stopped. That's when the forward collision mitigation system comes to life. When it senses an impending impact, it will activate a combination of features to help prevent or reduce the severity of an accident. Forward collision mitigation is always looking ahead. Pedestrian impact prevention - An extra step toward safety. Pedestrians don't always stop, look, and listen, but with Pedestrian Impact Prevention, your vehicle is equipped to better see them and avoid them. This system constantly monitors the road ahead to identify and track pedestrians. It projects that image to an interior display screen, AND should an impact become likely, Pedestrian impact prevention takes steps to avoid a collision. Rear camera - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. The rear camera is an extra set of eyes that's both convenient and safe.Technology and Telematics Apple CarPlay/Android Auto smart device wireless mirroring Mobile hotspot - WiFi on the fly. Connect your devices to the Internet through your vehicles private mobile hotspot and take the internet wherever your journey takes you, without eating up your data allowance. Find the hotspot with mobile hotspot. EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, TRANSMISSION, 10-SPEED AUTOMATIC, GVWR, 11,200 LBS. (5080 KG), REAR AXLE, 3.42 RATIO, WHEELS, 18" (45.7 CM) MACHINED ALUMINUM WHEEL, TIRES, LT275/70R18E ALL-TERRAIN, BLACKWALL, TIRE, SPARE LT275/70R18 ALL-TERRAIN, BLACKWALL, ONYX BLACK, SEATS, FRONT 40/20/40 SPLIT-BENCH, JET BLACK, CLOTH SEAT TRIM, AUDIO SYSTEM, 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE, SLE CONVENIENCE PACKAGE, REMOTE START PACKAGE, SLE HEATED PACKAGE, X31 OFF-ROAD PACKAGE, ENGINE BLOCK HEATER, HILL DESCENT CONTROL, ALTERNATOR, 220 AMP, GOOSENECK / 5TH WHEEL PREP PACKAGE -- HITCH PLATFORM TO ACCEPT GOOSENECK OR 5TH WHEEL HITCH., SKID PLATES, EXHAUST BRAKE, BEDLINER, SPRAY-ON, PICKUP BEDLINER, WINTER GRILLE COVER, FOG LAMPS, LED, LAMPS, SMOKED AMBER ROOF MARKER, (LED), LICENSE PLATE KIT, FRONT, INCANDESCENT LIGHTING, SEAT ADJUSTER, DRIVER 10-WAY POWER INCLUDING LUMBAR, SEATING, HEATED DRIVER AND FRONT OUTBOARD PASSENGER, STEERING WHEEL, HEATED, STEERING COLUMN, MANUAL TILT-WHEEL AND TELESCOPING, REMOTE VEHICLE STARTER SYSTEM, THEFT-DETERRENT SYSTEM, UNAUTHORIZED ENTRY, AIR CONDITIONING, DUAL-ZONE AUTOMATIC CLIMATE CONTROL, DEFOGGER, REAR-WINDOW ELECTRIC Please do not hesitate to contact us with any ques

All Features

  • 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
  • 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
  • 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
  • 6-speaker audio system
    • Speakers are positioned throughout the cabin for outstanding sound quality and an enjoyable listening experience
  • 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
  • SiriusXM Trial Subscription
  • Black outside power-adjustable vertical trailering mirrors
    • Lower convex mirrors
    • Heated upper glass
    • Integrated turn signal indicators
    • Manual folding/extending
    • Extends 3.31-inches
    • May require additional optional equipment
  • LED tail lamps
  • Tailgate with EZ Lift assist, power lock & release
    • Hitch area lighting
    • May require additional optional equipment
  • Chrome front bumper
    • May require additional optional equipment
  • Animated LED projectors headlamps with LED turn signals and Daytime Running Lamps
  • 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
  • Grille (Chrome surround with Chrome insert bars.)
  • Spare tire carrier lock
    • Helps keep spare tire secure
  • Chrome rear bumper
    • With integrated CornerSteps
    • May require additional optional equipment
  • IntelliBeam
    • At speeds above 25 mph, can automatically turn vehicle's high beams on and off according to surrounding traffic conditions1
  • Deep-tinted glass
    • Provides added protection from sun and glare
  • Tailgate and bed rail protection caps
  • Cab-mounted cargo area lamps
    • Activated by switch located on center switch bank
    • Illuminates the cargo bed area
  • Body-color door handles
  • Cargo tie-downs
    • 12-fixed rated at 500 lbs. per corner
  • 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
  • Standard tailgate
  • Chrome beltline moldings
  • 18" LT275/70R18E all-terrain, blackwall tires
  • 18" machined aluminum wheels with Dark Grey metallic accents
  • LED fog lamps
  • Winter Grille Cover
    • May require additional optional equipment
  • 18" LT275/70R18 all-terrain, blackwall spare tire
    • May require additional optional equipment
  • Front license plate bracket
    • Front bracket is included if displaying a front license plate is required in your state
  • 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
  • Smoked Amber LED roof marker lamps
    • Roof-mounted lamps near the front of the cab
  • Onyx Black
  • 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
  • 4-way manual driver seat
  • Front rubberized-vinyl floor mats
    • Helps protect your interior from road debris and the elements
    • May require additional optional equipment
  • Single-zone manual climate control
    • Maintains a selected temperature
  • Power windows with front passenger express-down
    • Quickly lowers the window with the touch of a button
    • If an obstruction is detected, the anti-pinch feature will auto-reverse
  • 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)
  • Cruise control
    • Maintains a selected speed while driving
    • Automatically disengages when the vehicle's traction control system needs to limit wheelspin on slippery surfaces or when the StabiliTrak® stability control system detects an oncoming skid
    • Set and resume speed functions
    • Steering-wheel mounted controls to easily maintain and manage cruising speed
  • 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
  • USB ports
    • (2) Data/charge ports located on instrument panel1
  • 4-way manual front passenger seat
  • Carpeted floor covering
    • Color-keyed to match the interior
  • Wrapped steering wheel
  • 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
  • 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 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
  • 40/20/40 split-bench front seat with under-seat storage
    • Seating for up to 3
    • Driver and front passenger seatbacks recline
    • Head restraints at the outboard seating positions
    • Center seatback that doubles as a fold-down armrest with storage
  • Assist handles
    • Front A-pillar mounted for Driver and Passenger
    • Rear B-pillar mounted
  • 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
  • Seat trim, Cloth
  • 60/40 split-folding rear bench seat
    • Includes child seat top tether anchor
    • Can fold one or both sides up
  • Rear rubberized-vinyl floor mats
    • Helps protect your interior from road debris and the elements
    • May require additional optional equipment
  • Rear air vents
    • Provides cabin comfort for rear occupants
  • Inside rearview manual day/night mirror
    • Adjust the tilt of the mirror to help reduce glare during nighttime driving
  • 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
  • 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
  • USB ports
    • (2) Charge ports located on rear of console1
  • Compass
    • Located in instrument cluster
  • Outside temperature display
    • Located in infotainment display
  • 10-way power driver seat with power lumbar
    • Includes 8-way power driver seat
    • Includes a 2-way power lumbar control
  • 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
  • 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
  • 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
  • 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
  • Jet Black, Cloth seat trim
  • 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
  • Rear window defogger
    • Utilizes a warming grid to help remove fog or frost from the rear window
  • 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
  • Black vertical recovery hooks
    • Two front frame-mounted1
  • 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
  • Steering
    • Recirculating Ball with smart flow power steering system
  • Heavy-Duty Air Filter
    • Thick construction helps to trap more dirt before it can enter the air intake
  • Fully boxed frame
    • Hydroformed front section
    • High-strength steel
  • Brake pad wear indicator
  • Four wheel drive
  • 11,200 lbs. GVWR
    • When properly equipped; includes weight of vehicle, passengers, cargo and equipment
  • Off-Road suspension
    • 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
  • 220-amp alternator
    • May require additional optional equipment
  • Emissions, Federal requirements
  • 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
  • Skid plates
    • Help protect the front underbody, oil pan and transfer case
    • May require additional optional equipment
  • 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
  • SLE Preferred Equipment Group includes standard equipment
  • SLE Heat package
    • Heated driver and passenger seats
    • Heated steering wheel
  • Remote Start Package
    • Remote Start
    • Content theft alarm
    • Rear-window defogger
  • X31 Off-Road Package
    • Off-Road suspension
    • Hill Descent Control
    • Skid plates
    • Twin-tube Rancho shocks
    • X31 hard badge
    • May require additional optional equipment
  • SLE Convenience package
    • Dual climate control
    • 10-way power driver seat including power lumbar
    • Manual tilt/telescoping steering column
    • LED roof marker lamps
    • LED fog lights
  • Signature LED Daytime Running Lamps
  • LED Daytime Running Lamps
  • 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
  • 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
  • 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
  • Trailering Information Label
    • Provides max trailer ratings for tongue weight, conventional, gooseneck hitch and 5th wheel hitch
  • 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
  • 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
  • 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
  • HD Rear Vision Camera
    • Shows high-resolution digital image of area directly behind your vehicle while in Reverse1
    • Can help you park or avoid vehicles and objects
    • You can also display an overlay of where your vehicle is heading
    • Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly
    • May require additional optional equipment
  • Rear Seat Belt Indicator
  • Seat Belt Adjustable Guide Loops
    • Front row only
  • 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
  • OnStar® services capable
    • See onstar.com for details and limitations. Services vary by model. Service plan required.
  • 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
  • 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

Gooseneck / 5th Wheel Prep Package -- Hitch platform to accept Gooseneck or 5th Wheel hitch.

    SLE Convenience Package

      Remote Start Package

        SLE Heated package

          X31 Off-Road Package


            • DriveType
              • DriveType: Four Wheel Drive
            • Fuel Economy
              • City: 0 MPG
              • Hwy: 0 MPG
              • Combined: 0 MPG
            • Fuel System
              • Fuel System: Direct Injection
            • Fuel Tank Capacity
              • Fuel Tank Capacity: 29.4 gal
            • Fuel Type
              • Fuel Type: Diesel Fuel
            • Horse Power
              • Horse Power: 470
            • Rear Wheel
              • Rear Wheel: Single
            • Trailering Capacity
              • Trailering Capacity: 14500 lbs

            Warranty

            • Corrosion: 3 Years/36,000 Miles Rust-Through 6 Years/100,000 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
            • 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
            • Basic: 3 Years/36,000 Miles
            • Maintenance: First Visit: 12 Months/12,000 Miles
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            PRICING DISCLOSURE: Listed Prices do not include closing costs, including government fees and taxes, finance charges, emissions testing fees or other fees. Due to the volatility of Factory and Dealer Discounts, and market changes that occur within the month, our pricing is subject to change without prior notice. However, the terms of this offer remain valid to the end of this business day. Contact the dealer for the most current information. Quoted prices include current cash rebates. An additional Administrative Fee of $619.00 will be applied at the time of purchase. Not everyone qualifies for all incentives shown, including, but not limited to, Conquest, Loyalty, Select Nameplate and Down Payment Assistance. For a complete breakdown of all incentive eligibility requirements visit www.davesinclairbuickgmc.com or call for details. Out of town purchasers who do not plan to arrange financing with one of our lenders, must arrange for a wire transfer of funds - CALL FOR DETAILS.

            The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.