2026 GMC Sierra 1500 AT4 Truck Crew Cab

  • Used
  • Diesel
$59,942Ralph Sellers Price
Ralph Sellers Chevrolet
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Quality Used Cars, Trucks & Certified Pre Owned Vehicles For Sale in Baton Rouge, Denham Springs, Prairieville, Gonzales Louisiana


Notes from the dealer

Superb Condition. AT4 trim, Sterling Metallic exterior and Jet Black with Kalahari accents interior. FUEL EFFICIENT EPA estimate 24 MPG Hwy/21 MPG City! Serviced here, Non-Smoker vehicle.

KEY FEATURES INCLUDE
Leather Seats, 4WD, Heated Driver Seat, Heated Rear Seat, Cooled Driver Seat GMC AT4 with Sterling Metallic exterior and Jet Black with Kalahari accents interior features a Straight 6 Cylinder Engine with 305 HP at 3750 RPM*.

OPTION PACKAGES
TECHNOLOGY PACKAGE: includes (DRZ) Rear Camera Mirror and (UV6) Multicolor 15 Diagonal Head-Up Display (Includes (UVN) Bed View Camera.), AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote and (A48) rear sliding power window, 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), ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.) (STD), TRANSMISSION, 10-SPEED AUTOMATIC WITH ELECTRONIC PRECISION SHIFT, ELECTRONICALLY CONTROLLED with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking (STD).

EXCELLENT VALUE
AutoCheck One Owner Superb Condition This Sierra 1500 is priced $2,800 below J.D. Power Retail.

VISIT US TODAY
Ralph Sellers Chevrolet has extensive experience and industry knowledge offered by the Ralph Sellers Chevrolet team brings new customers in the door and keeps our current customers coming back.Our business cannot grow without the trust of our customers and for that reason we are dedicated to delivering honest, transparent transactions to everyone who comes to our dealership.

Pricing analysis performed on 11/12/2026. Horsepower calculations based on trim engine configuration. Fuel economy calculations based on original manufacturer data for trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.

    The overview

    Exterior Color
    Sterling
    Interior Color
    Jet Black
    Odometer
    20,655 miles
    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
    1GTUUEE83TZ138553
    Stock Number
    25X1415A

      The highlights

      • Navigation system
      • Lane departure
      • Leather upholstery
      • Automatic temperature control
      • Emergency communication system
      • Wireless phone connectivity
      • Parking sensors
      • Exterior parking camera front
      • Exterior parking camera left
      • Exterior parking camera right
      • Exterior parking camera rear
      • Front dual zone A/C

      A closer look at what’s included

      Included Options
      • Technology Package
      • Rear Camera Mirror
      • Multicolor 15" Diagonal Head-Up Display
      • Bed View Camera
      • Radio: Premium GMC Infotainment Audio System
      • Premium Bose 7-Speaker Sound System
      • Wireless Apple CarPlay/Wireless Android Auto
      • Engine: Duramax 3.0L Turbo-Diesel I6
      • 220 Amp Alternator
      • Transmission: 10-Speed Automatic
      • AT4 Preferred Package
      • Universal Home Remote
      • Power Sliding Rear Window with Rear Defogger
      • 1-touch down
      • 1-touch up
      • 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
      • Navigation system
      • Overhead console
      • Passenger door bin
      • Passenger vanity mirror
      • Power windows
      • Proximity key: doors and push button start
      • Rear beverage holders
      • Rear door bins
      • Remote engine start
      • Remote keyless entry
      • Speed control
      • Surround View Monitor: HD Surround Vision w/Hitch View yes
      • Telescoping steering wheel
      • Tilt steering wheel
      • Alloy wheels
      • Front anti-roll bar
      • Front wheel independent suspension
      • Power steering
      • Speed-sensing steering
      • Tires: all-terrain
      • 1st row LCD monitors: 2
      • Primary LCD size: 13.4"
      • Radio data system
      • 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
      • 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
      • Drive type: four-wheel
      • Electric motor 1 torque: none
      • Electric motor horsepower: none
      • Engine location: front
      • Fuel economy city: 22mpg
      • Fuel economy combined: 24mpg
      • Fuel economy highway: 26mpg
      • Fuel tank capacity: 24.0gal.
      • 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
      • Rear locking differential
      • Transmission: 10 speed automatic
      • Variable intake manifold
      • Variable valve control
      • Approach angle: 26 deg
      • Departure angle: 23 deg
      • Ground clearance (min): 282mm (11.1")
      • Ramp breakover angle: 21 deg
      • Auto-dimming door mirrors
      • Bedliner
      • Bumpers: body-color
      • 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
      • Exterior body width: 2,063mm (81.2")
      • Exterior height: 1,990mm (78.3")
      • Exterior length: 5,916mm (232.9")
      • Front hiproom: 1,544mm (60.8")
      • Front legroom: 1,131mm (44.5")
      • Front shoulder room: 1,638mm (64.5")
      • Greenhouse Gas Score (GG): 4
      • Rear headroom: 1,019mm (40.1")
      • Rear hiproom: 1,505mm (59.2")
      • Rear legroom: 1,102mm (43.4")
      • Rear shoulder room: 1,626mm (64.0")
      • Turning radius: 7.2m (23.7')
      • Wheelbase: 3,747mm (147.5")
      • Appearance: digital/analog
      • Auto high-beam headlights
      • Blind spot: Trailer Side Blind Zone Alert warning
      • Compass
      • Configurable
      • Delay-off headlights
      • Exterior parking camera cargo
      • Exterior parking camera front
      • Exterior parking camera left
      • Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
      • Exterior parking camera right
      • Front fog lights
      • Front reading lights
      • Fully automatic headlights
      • Heads up display
      • Lane departure: Lane Keep Assist with Lane Departure Warning active
      • Low tire pressure warning
      • Oil pressure gauge
      • Outside temperature display
      • Parking sensors: Front and Rear Park Assist front and rear
      • 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
      • Rear collision: Rear Cross Traffic Braking mitigation
      • Security system
      • Traction control

      KBB.com Consumer Reviews

      Kelley Blue Book Logo4.0out of 5 overall
      • 4.0

        Depreciation of 50%

        by Manny A on 10/28/2026 10:06:36 AM

        This is a amazing truck.. Comfortable lots of sensors Etc…. My truck has 30000 miles I when to trade in they offer $46000 I paid $86000 the depreciation is incredible I don’t buy new truck never again.…
      • 5.0

        2021 GMC SLT 4WD SIERRA, Great Truck

        by Ransom1 on 10/15/2026 4:18:42 PM

        This is my 8th truck. This is hands down the very best truck I’ve ever owned. Not only is it the best looking truck on the road I have never had it in the shop except for oil changes and scheduled maintenance. The silver does not show dirt or grime.…
      • 5.0

        Great 4 cylinder truck

        by Steve on 9/23/2026 2:01:15 AM

        I have only pulled a trailer one time and still got 18 mpg down doing 80 down the interstate. Otherwise this vehicle is used for commuting or recreating. I typically get 22-24 mpg driving MT highways to the mountains. The turbo has some spunk for getting up to speed and the five years I've had my truck no complaints.…