2026 GMC Sierra 1500 SLT

  • New
  • Diesel
$67,580MSRP
$249Electronic Filing Fee
View price details
Finance Terms
Regal Automotive Group
Location Details
Call 863-225-9790
We’re here to help

    The overview

    Exterior Color
    Onyx Black
    Interior Color
    Dark Walnut/Slate
    Body/Seating
    Truck Crew Cab/5 seats
    Seats
    5 seats
    Fuel Economy
    22/26 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4x4
    Engine
    I-6 cyl
    VIN
    3GTUUDE84TG496626
    Stock Number
    26T434

      The highlights

      • Navigation system
      • Lane departure
      • Leather upholstery
      • Automatic temperature control
      • Emergency communication system
      • Power moonroof
      • Wireless phone connectivity
      • Exterior parking camera rear
      • Front dual zone A/C
      • Auto high-beam headlights
      • Rain sensing wipers
      • Auto-dimming rearview mirror

      A closer look at what’s included

      • SLT Convenience Package
        • Front Bucket Seats
        • Floor-Mounted Center Console
        • Ventilated Driver and Front Passenger Seats
        • Wireless Charging
        • Premium Bose 7-Speaker Sound System
        • Power Rake and Telescoping Steering Column
      • X31 Off-Road Package
        • Off-Road Suspension
        • Hill Descent Control
        • Skid Plates
        • Heavy-Duty Air Filter
        • X31 Hard Badge
        • 2-Speed Transfer Case
        • Tires: 265/65R18SL AT BW
        • Dual Exhaust System
      • SLT Preferred Package
        • Adaptive Cruise Control
        • Power Sliding Rear Window with Rear Defogger
        • Universal Home Remote
        • Heated 2nd Row Outboard Seats
      • Engine: Duramax 3.0L Turbo-Diesel I6
        • 220 Amp Alternator
        • Engine Block Heater
        • 850 Heavy-Duty Battery
        • Delete External Engine Oil Cooler
        • GVWR: 7,200 lbs
      • Front 40/20/40 Split-Bench Seat
        • 10-Way Power Driver Seat Adjuster with Lumbar
        • 10-Way Power Passenger Seat Adjuster with Lumbar
        • Driver Memory
        • Heated Driver and Front Outboard Passenger Seating
      • Preferred Equipment Group 4SA
        • GMC Pro Safety
        • 6-Speaker Audio System Feature
        • SiriusXM with 360L Trial Subscription
        • Electric Rear-Window Defogger
        • Power Door Locks
        • Push Button Start
        • Remote Vehicle Starter System
        • Keyless Open and Start
        • Color-Keyed Carpeting Floor Covering
        • OnStar Services Capable
        • Wi-Fi Hotspot Capable
        • 120-Volt Interior Power Outlet
        • 2 Charge/Data USB Ports
        • 2 Type-C Charge-Only Rear USB Ports
        • HD Rear Vision Camera
        • Front 40/20/40 Split-Bench Seat
        • Steering Wheel Audio Controls
        • Manual Tilt-Wheel and Telescoping Steering Column
        • Theft Deterrent System
        • Power Front Windows with Driver Express Up/Down
        • Power Front Passenger Windows with Express Up/Down
        • Power Rear Windows with Express Down
        • Deep-Tinted Glass
        • Chrome Header and Chrome Grille Insert Bars
        • LED Cargo Area Lighting
        • Perimeter Lighting
        • Front Frame-Mounted Black Recovery Hooks
        • Wheels: 18" x 8.5" 6-Spoke Machined Aluminum
        • Rear Wheelhouse Liners
        • Front Rain-Sensing Wipers
        • Trailering Package
        • 170 Amp Alternator
        • Auxiliary External Transmission Oil Cooler
        • Auto-Locking Rear Differential
        • Integrated Trailer Brake Controller
        • Single Speed Transfer Case
      • Front Bucket Seats
        • 2 Charge/Data USB Ports Inside Center Console
        • Electronic Precision Shift
      • GMC Pro Safety
        • Forward Collision Alert
        • Following Distance Indicator
        • Front Pedestrian Braking
        • IntelliBeam Automatic High Beam on/Off
        • Lane Keep Assist with Lane Departure Warning
        • Automatic Emergency Braking
        • Buckle to Drive
      • Radio: Premium GMC Infotainment Audio System
        • 6-Speaker Audio System Feature
        • Wireless Apple CarPlay/Wireless Android Auto
      • 120-Volt Interior Power Outlet
        • 120-Volt Bed Mounted Power Outlet
      • Trailering Package
        • Hitch Guidance
      Included Options
      • 3.23 Rear Axle Ratio
      • Power Sunroof
      • Transmission: 10-Speed Automatic
      • Spray-on Pickup Bedliner with GMC Logo
      • 1-touch down
      • 1-touch up
      • Adaptive Cruise Control: Adaptive Cruise Control
      • Air conditioning
      • Auto-dimming rearview mirror
      • Automatic temperature control
      • Driver door bin
      • Driver vanity mirror
      • Emergency communication system: OnStar
      • Front beverage holders
      • Front dual zone A/C
      • Garage door transmitter
      • Heated steering wheel
      • Illuminated entry
      • Memory seat
      • Moonroof sunshade: manual
      • Navigation system
      • Overhead console
      • Passenger door bin
      • Passenger vanity mirror
      • Power moonroof
      • Power windows
      • Proximity key: doors and push button start
      • Rear beverage holders
      • Rear door bins
      • Remote engine start
      • Remote keyless entry
      • Speed control
      • Telescoping steering wheel
      • Tilt steering wheel
      • Alloy wheels
      • Front anti-roll bar
      • Front tires: 265/65SR18.0
      • Front wheel independent suspension
      • Power steering
      • Rear tires: 265/65SR18.0
      • Speed-sensing steering
      • Tires: all-terrain
      • Wheel size: 18"
      • 1st row LCD monitors: 2
      • AM/FM radio: SiriusXM with 360L
      • Primary LCD size: 13.4"
      • Radio data system
      • Satellite radio trial duration with new vehicle purchase (months): 3
      • Smart device integration: Apple CarPlay/Android Auto
      • Speaker type: Bose
      • Speakers: 7
      • Steering wheel mounted audio controls
      • Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
      • Wireless Phone Charger: front
      • Wireless phone connectivity: Bluetooth
      • Basic warranty: 36 months/36,000miles
      • Corrosion perforation warranty: 72 months/100,000miles
      • Diesel engine warranty: 60 months/100,000miles
      • Maintenance warranty: 12 months/ unlimited distance
      • Powertrain warranty: 60 months/60,000miles
      • Roadside assistance coverage: 60 months/60,000miles
      • Front center armrest
      • Front seats: bucket
      • Heated front seats
      • Heated rear seats
      • Leather upholstery
      • Max seating capacity: 5
      • Power 2-way driver lumbar support
      • Power 2-way passenger lumbar support
      • Power driver seat
      • Power passenger seat
      • Rear seat center armrest
      • Rear seats: split-bench
      • Rear seats Folding position: fold-up cushion
      • Seat Upholstery: leather
      • Split folding rear seat
      • Ventilated front seats
      • Block heater
      • Compressor: intercooled turbo
      • Cylinder configuration: I-6
      • Cylinder deactivation
      • Drive type: four-wheel
      • Electric motor 1 torque: none
      • Electric motor horsepower: none
      • Engine liters: 3.0L
      • Engine location: front
      • Fuel economy city: 22mpg
      • Fuel economy combined: 16mpg
      • Fuel economy highway: 26mpg
      • Fuel tank capacity: 24.0gal.
      • Horsepower: 305hp @ 3,750RPM
      • Hybrid electric powertrain type: none
      • Hybrid system combined power torque: none
      • Hybrid system net power: none
      • Hybrid traction battery type: none
      • Manual-shift auto
      • Mode select transmission
      • Number of valves: 24
      • Rear locking differential
      • Recommended fuel: Diesel
      • Standard fuel economy fuel type: diesel
      • Torque: 495 lb.-ft. @ 2,750RPM
      • Transmission: 10 speed automatic
      • Variable intake manifold
      • Variable valve control
      • Approach angle: 19 deg
      • Departure angle: 24 deg
      • Ground clearance (min): 206mm (8.1")
      • Ramp breakover angle: 18 deg
      • Auto-dimming door mirrors
      • Bedliner
      • Bumpers: chrome
      • Door mirrors: chrome
      • Heated door mirrors
      • Hitch Class: IV
      • Left rear passenger door: conventional
      • Power door mirrors
      • Rear cargo: tailgate
      • Rear step bumper
      • Right rear passenger: conventional
      • Skid plates
      • Tailpipe finisher: chrome
      • Trailer hitch
      • Trailer sway control
      • Compression ratio: 15.00 to 1
      • Curb weight: 2,440kg (5,380lbs)
      • Engine bore x stroke: 84.0mm x 90.0mm (3.31" x 3.54")
      • Engine displacement: 3.0 L
      • Engine torque: 495 lb.-ft. @ 2,750RPM
      • Exterior body width: 2,063mm (81.2")
      • Exterior height: 1,918mm (75.5")
      • Exterior length: 5,890mm (231.9")
      • Front headroom: 1,013mm (39.9")
      • Front hiproom: 1,554mm (61.2")
      • Front legroom: 1,131mm (44.5")
      • Front shoulder room: 1,676mm (66.0")
      • GVWR: 3,266kg (7,200lbs)
      • Greenhouse Gas Score (GG): 3
      • Payload: 812kg (1,790lbs)
      • Rear headroom: 1,019mm (40.1")
      • Rear hiproom: 1,529mm (60.2")
      • Rear legroom: 1,102mm (43.4")
      • Rear shoulder room: 1,656mm (65.2")
      • Towing capacity: 3,946kg (8,700lbs)
      • Turning radius: 7.1m (23.1')
      • Wheelbase: 3,744mm (147.4")
      • Appearance: digital/analog
      • Auto high-beam headlights
      • Compass
      • Configurable
      • Delay-off headlights
      • Exterior parking camera rear: HD Rear Vision Camera yes
      • Front fog lights
      • Front reading lights
      • Fully automatic headlights
      • Lane departure: Lane Keep Assist with Lane Departure Warning active
      • Low tire pressure warning
      • Oil pressure gauge
      • Outside temperature display
      • Rain sensing wipers
      • Rear reading lights
      • Rear window defroster
      • Tachometer
      • Trip computer
      • Variably intermittent wipers
      • Voltmeter
      • 4 wheel disc brakes
      • ABS brakes
      • Brake assist
      • Dual front impact airbags
      • Dual front side impact airbags
      • Electronic stability
      • Forward collision: Forward Collision Alert with Automatic Braking mitigation
      • Front pedestrian detection: prevention
      • Ignition disable
      • Occupant sensing airbag
      • Overhead airbag
      • Panic alarm
      • Perimeter/approach lights
      • Security system
      • Tracker system: Stolen Vehicle Assistance
      • Traction control
      Drivers in Lakeland, Polk County, and across Central Florida choose the Regal Automotive Group for a wide selection of new vehicles and a dealership experience built around convenience and transparency. With multiple locations in Lakeland, Regal makes it easy to find the right vehicle to fit your lifestyle.

      This 2026 GMC Sierra 1500 SLT delivers capability and refinement with its 3.0L turbocharged diesel I-6 engine paired with a 10-speed automatic transmission and standard 4WD. Finished in striking Black, this truck combines efficiency with power, achieving 22 city and 26 highway mpg while maintaining the strength you need for work or adventure.

      Key features include:
      - Power sunroof
      - Spray-on bedliner with GMC logo
      - X31 off-road package with hill descent control and off-road suspension
      - SLT convenience and preferred packages
      - Premium Bose 7-speaker sound system with wireless Apple CarPlay and Android Auto
      - Adaptive cruise control and lane keep assist with departure warning
      - Heated and ventilated front seats with 10-way power adjustability
      - Integrated trailer brake controller and hitch guidance
      - Remote vehicle starter system and push button start
      - Auto-dimming mirrors and rain-sensing wipers

      The Sierra 1500 SLT combines capability with comfort, offering the technology and convenience features you expect with the durability GMC trucks are known for. Visit us today to experience this impressive pickup and explore our full inventory of quality vehicles.

      For nearly 50 years, the Regal Automotive Group has proudly served Lakeland and Polk County drivers. With a large inventory of quality vehicles, competitive pricing, and aggressive financing options, our team is committed to delivering a straightforward buying experience and excellent customer service. Price includes: $1500 - Buick & GMC Consumer Cash Program. Exp. 09/30/2026 $3000 - GM Trade In Allowance Program. Exp. 09/30/2026 $500 - GM First Responder Cash Allowance Program. Exp. 01/04/2027 $500 - GM Rewards Card Sales Sign Up and Spend Offer. Exp. 11/30/2026 $500 - GMC Bonus Cash. Exp. 09/30/2026

      Track your progress

       
       
       
       

      Peace of mind

      Factory warranty

      36 months/36,000miles from the vehicle's original in-service date

      Optional add-on protection

      • GAP Protection
      • Lifetime Powertrain
      • Tires and Wheels
      • Paint Protection

      A name you can trust

      Regal Automotive Group 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
          Price is plus tax, tag, title. A dealer fee of $989 and an Electronic Registration Filing Fee of $249 are included in the price, which charges represent costs and profits to the dealer for items such as inspecting, cleaning, and adjusting vehicles and preparing documents related to the sale. All advertised pricing is on in-stock units only and is inclusive of all applicable manufacturer offers and may not be combined with other exclusive offers. All payment quotes received assumes that taxes and fees will be paid at the time of sale by the customer in addition to the down payment amount stated or shown. Certain offers presume financing through the Manufacturer Captive Lender, subject to approved credit. Should you purchase the vehicle through the use of other funds, or through other lending sources, certain offers may be excluded. See dealer for complete details.