2026 GMC Sierra 1500 Pro

  • New
$51,880MSRP
$45,597Final Price
The price listed above does not include a $599 administration fee, applicable tax, title, tags, license, delivery charges, or any dealer installed accessories.
Trade In Value
O'Fallon Buick GMC
Location Details
Call 636-200-3388
We’re here to help

    The overview

    Exterior Color
    Summit White
    Interior Color
    Jet Black, Cloth seat trim
    Fuel Economy
    17/20 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    TurboMax™ engine
    VIN
    1GTPUAEK0TZ504986
    Stock Number
    G261160
      • Basic: 3 Years/36,000 Miles
      • Corrosion: 3 Years/36,000 Miles, Rust-Through, 6 Years/100,000 Miles
      • Drivetrain: 5 Years/60,000 Miles, Sierra TurboMaxTM engines, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
      • Maintenance: First Visit: 12 Months/12,000 Miles
      • Roadside Assistance: 5 Years/60,000 Miles, Sierra TurboMaxTM engines, 3.0L & 6.6L Duramax® Turbo-Diesel engines, and certain commercial, government, and qualified fleet vehicles: 5 years/100,000 miles
      • Warranty: <<< Preliminary 2026 Warranty >>>
      • Max seating capacity: 6
      • Fuel System: Direct Injection
      • Fuel tank capacity: 24 gal
      • Horsepower: 310
      • Towing capacity: 8800 lbs
      • 6-speaker audio system:
        • Speakers are positioned throughout the cabin for outstanding sound quality and an enjoyable listening experience
      • 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
      • GMC Infotainment System with color touchscreen:
        • Multi-touch display and AM/FM stereo
        • 7" diagonal color touchscreen for customizing and managing entertainment and vehicle feature settings1 on Sierra 1SA
        • Bluetooth®2 audio streaming for select devices
        • Apple CarPlay™ capability for compatible phones3
        • Android Auto™ capability for compatible phones4
      • SiriusXM Trial Subscription:
        • With your trial subscription, get access to all of your favorite entertainment from SiriusXM to enjoy in your vehicle and on the SiriusXM app - from ad-free music, talk and sports, to comedy, news, podcasts and more1
        • Enjoy channels curated by DJs, personalities and tastemakers for a listening experience you can't live without
        • Plus, take the full SiriusXM experience with you everywhere you go with the SiriusXM app - at home, on your phone or connected devices, and unlock other exclusives that bring you even closer to your favorite stars, artists, creators, hosts and athletes
      • Wi-Fi® Hotspot capable:
        • Terms and limitations apply. See onstar.com or dealer for details.
        • May require additional optional equipment
      • Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones:
        • Can use Apple CarPlay1 and Android Auto2 wirelessly
        • Apple CarPlay vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and Apple Music are trademarks for Apple Inc, registered in the U.S. and other countries.
        • Vehicle user interface is a product of Google and its terms and privacy statements apply. To use Android Auto on your car display, you'll need an Android phone running Android 6 or higher, an active data plan, and the Android Auto app. Google, Android and Android Auto are trademarks of Google LLC.
      • 17" 255/80R17SL all-season, blackwall spare tire
      • 17" full-size spare steel wheel with Black finish
      • 20" 275/60R20 all-season, blackwall tires
      • 20" 6-spoke high gloss Black painted aluminum wheels
      • Black door handles
      • Body-color front bumper
      • Body-color rear bumper
      • Cab-mounted cargo area lamps:
        • With switch in switch bank left of the steering wheel
        • Illuminates the cargo bed area
      • Cargo bed LED lighting:
        • Provides light to find cargo in the bed
        • Rear pillar 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
      • Deep-tinted glass:
        • Provides added protection from sun and glare
      • Front license plate bracket:
        • Front bracket is included if displaying a front license plate is required in your state
      • Heated power outside mirrors:
        • Power adjustable, manual folding
        • 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
        • May require additional optional equipment
      • LED projectors with Fade-on/ Fade-off animation, LED turn signals and Daytime Running Lamps:
        • C-shaped LED headlamps with signature lighting and innovative light blade technology
      • LED signature tail lamps with Fade-on/Fade-off animation, incandescent stop, turn and reverse light:
        • C-shaped LED taillamps with LED stop and reverse light
        • Help improve visibility in low-light conditions
        • Brighter and lasts longer than traditional incandescent bulbs
      • Locking tailgate:
        • Tailgate locks and unlocks with the same key as the ignition and door
      • Spare tire carrier lock:
        • Helps keep spare tire secure
        • Utilizes the same key as the door and ignition
      • Standard tailgate
      • Tailgate and bed rail protection caps
      • Tailgate with EZ Lift assist, power lock & release:
        • Hitch area lighting
        • May require additional optional equipment
      • 12-volt auxiliary front power outlet:
        • May require additional optional equipment
      • 3.5" diagonal monochromatic Driver Information Center
      • 4-way manual driver seat:
        • Can be positioned forward or back and up or down
      • 4-way manual front passenger seat:
        • Can be positioned forward or back and up or down
      • 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
      • 60/40 split-folding rear bench seat:
        • Includes child seat top tether anchor
        • Can fold one or both sides up
      • Assist handles:
        • Front A-pillar mounted for Driver and Passenger
        • Rear B-pillar mounted
      • Carpeted floor covering:
        • Color-keyed to match the interior
      • Compass:
        • Located in instrument cluster
      • 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
      • Front rubberized-vinyl floor mats:
        • Helps protect your interior from road debris and the elements
        • May require additional optional equipment
      • Inside rearview manual day/night mirror:
        • Adjust the tilt of the mirror to help reduce glare during nighttime driving
      • Instrumentation:
        • Includes analog speedometer and tachometer
        • 6-gauge cluster
        • Speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
      • Manual tilt steering column:
        • Allows the steering wheel to be manually adjusted up or down
        • Provides extra comfort when entering or exiting the vehicle
        • Locking security feature
      • Outside temperature display:
        • Located in infotainment display
      • Power door locks:
        • Programmable
        • 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
      • Power windows:
        • Driver with express-up/down
        • May require additional optional equipment
      • Power windows:
        • Front passenger with express down
        • May require additional optional equipment
      • Power windows with rear express-down:
        • May require additional optional equipment
      • Rear air vents:
        • Provides cabin comfort for rear occupants
      • Rear rubberized-vinyl floor mats:
        • Helps protect your interior from road debris and the elements
        • May require additional optional equipment
      • Rear window defogger:
        • Helps to keep your rear view clear of fog or frost
        • Utilizes a warming grid to help remove fog or frost from the rear window
      • Remote Keyless Entry:
        • Allows you to lock and unlock doors of the vehicle with the key fob
        • Driver's door or all doors unlock at the touch of a button
        • Includes panic alarm button
        • Includes remote locking tailgate
        • 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
      • Single-zone climate control:
        • Maintains a selected temperature
        • Manual
      • Steering wheel
      • 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
      • 220-amp alternator:
        • May require additional optional equipment
      • 3.42 rear axle ratio:
        • May require additional optional equipment
      • 4-wheel antilock disc brakes:
        • Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
        • Duralife brake rotors have better resistance to corrosion to increase rotor life, minimize brake pulsation, and improve aesthetic appearance
      • 7,000 lbs. GVWR:
        • When properly equipped; includes weight of vehicle, passengers, cargo and equipment
      • 8-speed automatic transmission:
        • Electronically controlled with overdrive
        • Tow/Haul mode
          • Raises transmission upshift points to provide more power to accelerate with a trailer or heavy load
          • Raises downshift points to use engine compression to help slow the truck instead of merely braking
        • Powertrain Grade Braking
          • Automatically uses the engine and transmission to slow the truck to maintain desired speeds when driving downhill
          • Reduces brake wear and increases vehicle control
        • Cruise Grade Braking
          • Downshifts automatically to slow the truck as it drives downhill if it exceeds the cruise set speed by a certain amount
      • Aluminized stainless-steel muffler and tailpipe
      • Automatic Stop/Start:
        • At complete stops, when drivers keep their foot on the brake pedal, and under certain conditions, the engine shuts off
        • When drivers remove their foot from the brake, the engine automatically restarts
        • Under certain circumstances, the engine will not shut off at a complete stop
        • This feature can be disabled with a switch on the center stack
      • Black vertical recovery hooks:
        • Two front frame-mounted1
      • Brake pad wear indicator
      • Capless fuel fill:
        • Prevents paint scratches that can result from a tethered fuel cap
        • Creates a tight seal around the fuel-pump nozzle when the nozzle is fully inserted
      • Cargo tie-downs (12)
      • Electric Power Steering:
        • Electric, rack-mounted with variable assist
        • Increases or decreases the amount of assist depending on the steering wheel angle
        • The system delivers great on-center precision and confident performance at higher speeds
        • Steering assist is greater during low-speed maneuvers, such as parking
      • Fully boxed frame:
        • Hydroformed front section
        • High-strength steel
      • Heavy-duty 730 cold-cranking amps battery:
        • 80 Amp-hr
        • Maintenance-free with rundown protection and retained accessory power
        • May require additional optional equipment
      • High-Capacity Suspension Package:
        • May require additional optional equipment
      • Pickup bed:
        • Roll-formed high-strength steel
      • Push Button Start
      • Single-outlet exhaust:
        • May require additional optional equipment
      • Single-speed Autotrac Transfer Case:
        • 3 Transfer Case modes
        • 2WD HI mode
          • Vehicle operates in 2-wheel drive
          • In this mode the transfer case & front driveline hardware are disengaged to improve fuel economy
          • Suitable for routine driving on all road surfaces
        • 4WD Auto mode
          • 4WD Auto enables the transfer-case to provide the performance benefits of a full time active AWD system
          • The 4WD Auto controls automatically adjust torque in response to parameters such as driver inputs, wheel slip control, vehicle dynamic state (understeer/oversteer)
          • Ideal for wet or wintry conditions, but can be used on any road surface. Suitable for light off road usage
        • 4WD HI mode
          • Transfer case engages front driveline and power is transferred to both the front & rear axles
          • In 4WD HI the transfer case clutch maintains higher preemptive torque levels for increased traction vs 4WD Auto
          • Suitable for use on slippery road surfaces or off-road conditions such as deep sand, snow or rough terrain
        • Terrain mode
          • 4WD HI and provides improved low speed traction and vehicle control during off road driving
      • TurboMax™ engine:
        • 310 hp [231 kW] @ 5600 rpm
        • 430 lb-ft of torque [583 Nm] @ 3000 rpm
        • Paired with an 8-speed automatic transmission
      • Convenience Package:
        • Remote Keyless Entry
        • Rear-window defogger
        • EZ Lift power lock and release tailgate
        • Tinted glass
        • LED cargo bed lighting
        • Outside heated power-adjustable mirrors (Crew Cab and Double Cab models)
      • GMC Pro Safety:
        • Forward Collision Alert1
        • Following Distance Indicator1
        • Front Pedestrian Braking1
        • Lane Keep Assist with Lane Departure Warning1
        • Automatic Emergency Braking1
        • Buckle to Drive1
        • IntelliBeam1
        • Safety Alert Seat1 on AT4, AT4X, Denali and Denali Ultimate
        • Enhanced Automatic Emergency Braking1 is standard on Denali and Denali Ultimate2
      • Graphite Edition:
        • Body-color front and rear bumper
        • Color-keyed carpeting
        • Remote Start
        • Content theft alarm
        • 20" 6-spoke High gloss Black painted aluminum wheels
        • 275/60R20 all-season tires
        • Body color upper grille
        • Recovery hooks on 2WD models
        • May require additional optional equipment
      • Pro Value Package:
        • Convenience Package
        • Trailering Package
      • Trailering Package:
        • Trailer hitch1
        • Trailering hitch platform
        • Includes a 2" receiver hitch, 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
      • LED Daytime Running Lamps:
        • Daytime Running Lamps automatically illuminate signature lighting
      • 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
      • 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
        • May require additional optional equipment
      • Buckle to Drive:
        • Helps remind the driver to buckle their seat belt before driving by preventing the vehicle from being shifted out of PARK temporarily when the driver's seat belt is not buckled
        • The feature also reminds the front passenger to buckle up, if equipped
      • Following Distance Indicator:
        • Displays the following time in seconds between your vehicle and a detected vehicle in front of you1
        • Designed to help you maintain a safe following distance
        • May require additional optional equipment
      • 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
        • May require additional optional equipment
      • 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
      • 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 Keep Assist with Lane Departure Warning:
        • Uses a brief steering wheel turn to alert you when it detects you are unintentionally drifting out of your lane lines1
        • System alerts do not occur if you're using your turn signal, or it detects you may be intentionally leaving your lane
        • You may receive additional Lane Departure Warning alerts if needed
        • 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 to help if you're in need
      • OnStar® services capable:
        • See onstar.com for details and limitations. Services vary by model. Service plan required.
      • Rear Seat Belt Indicator
      • Rear Seat Reminder:
        • Helps to remind the driver to check the back seat(s) before leaving the vehicle1
        • Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
        • Under certain conditions, once the vehicle is switched off, designed to sound audible chimes and display a visual message within the driver display
        • Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
      • Seat Belt Adjustable Guide Loops:
        • Front row only
      • Tire Pressure Monitoring System with Tire Fill Alert:
        • Monitors the pressure in each tire and alerts you if there is a low-pressure 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
        • Properly inflate tires to help optimize your vehicle's ride, handling and efficiency
      • 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
        • May require additional optional equipment
      • StabiliTrak, electronic stability control system with traction control:
        • Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path
        • Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling
        • Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads
        • Includes Brake Assist that senses how hard and fast a driver hits the brake pedal and gives extra braking assistance, if required
        • Includes Trailer Sway Control
        • Hill Start Assist
      This NEW 2026 Summit White GMC Sierra 1500 Pro 2.7L I4 Turbocharged DOHC 16V LEV3-SULEV30 310hp 8-Speed Automatic 4WD is well equipped and includes these features and benefits: Convenience Package (Deep-Tinted Glass, Electric Rear-Window Defogger, EZ Lift Power Lock and Release Tailgate, Heated Power-Adjustable Outside Mirrors, and LED Cargo Area Lighting), Graphite Edition (Body Color Lower Front Bumper, Body Color Upper Grille, Color-Keyed Carpeting Floor Covering, Front Rubberized-Vinyl Floor Mats, Rear Body-Color Bumper, Rear Rubberized-Vinyl Floor Mats, Remote Vehicle Starter System, SiriusXM Trial Subscription, Theft Deterrent System (unauthorized Entry), and Wheels: : 20 x 9 High Gloss Black Painted Aluminum), High Capacity Suspension Package, Preferred Equipment Group 1SA (2 Charge/Data USB Ports, 220 Amp Alternator, 4-Way Manual Driver Seat Adjuster, 4-Way Manual Passenger Seat Adjuster, Chrome Header with Flat Black Grille Insert Bars, Front 40/20/40 Split-Bench Seat, Front Frame-Mounted Black Recovery Hooks, HD Rear Vision Camera, OnStar Services Capable, Power Door Locks, Power Front Windows with Driver Express Up/Down, Power Front Windows with Passenger Express Down, Power Rear Windows with Express Down, Push Button Start, Remote Keyless Entry, Solar Absorbing Tinted Glass, Wheels: 17 x 8 Silver Painted Steel, and Wi-Fi Hotspot Capable), Pro Value Package, Standard Suspension Package, Trailering Package (Hitch Guidance), 8-Speed Automatic, 4WD, Black Cloth, 3.42 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio, Apple CarPlay/Android Auto, Auto High-beam Headlights, Automatic Emergency Braking, Brake assist, Buckle to Drive, Bumpers: chrome, Compass, Delay-off headlights, Driver door bin, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Center Armrest w/Storage, Front License Plate Kit, Front Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Illuminated entry, IntelliBeam Automatic High Beam on/Off, Lane Keep Assist with Lane Departure Warning, Low tire pressure warning, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Power steering, Power windows, Radio data system, Radio: GMC Infotainment Audio System, Rear reading lights, Rear step bumper, Remote keyless entry, Speed control, Speed-sensing steering, Split folding rear seat, Tachometer, Tilt steering wheel, Traction control, Trip computer, Variably intermittent wipers, Vinyl Seat Trim, Voltmeter, and Wireless Apple CarPlay/Wireless Android Auto.

      8-Speed Automatic, 4WD, Black Cloth.


      At O'Fallon Buick GMC, we're more than just a car dealership in O'Fallon. We're also members of the greater St Peters, Chesterfield, St Louis and St Charles MO communities, who work and live here just like you, and we want only what's best for our neighbors. We strive to support community initiatives and events, and we're committed to delivering the best customer service around. Price includes: $1500 - Purchase Allowance. Exp. 11/02/2026 $1750 - Bonus Cash. Exp. 11/02/2026

      Peace of mind

      A name you can trust

      O'Fallon Buick GMC is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
      More about us

      KBB.com Consumer Reviews

      Kelley Blue Book Logo0.0out of 5 overall
        Privacy
          Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

          1Dealer Discount applied to everyone
          *All pricing and details are believed to be accurate, but we do not warrant or guarantee such accuracy. Vehicle information is based off standard equipment and may vary from vehicle to vehicle. Call or email for complete vehicle information. Prices do not include additional fees and costs of closing, including government fees and taxes, any finance charges, $599 dealer documentation fee, any emissions testing fees, other fees required by law, vehicle sellers or lending organizations or other fees. All prices, specifications and availability subject to change without notice.  

          While every effort has been made to ensure display of accurate data, the vehicle listings within this website may not reflect all accurate vehicle items, accessories and color may vary. All inventory listed is subject prior to sale. The vehicle photo displayed may be an example only. Vehicle Photos may not match exact vehicles. Please confirm the vehicle price with Dealership. See Dealership for details.